Summary | ZeroBOX

Category	Machine	Started	Completed
FILE	s1_win7_x6401	June 29, 2021, 5:57 p.m.	June 29, 2021, 6:04 p.m.

Size	963.5KB
Type	PE32 executable (GUI) Intel 80386 Mono/.Net assembly, for MS Windows
MD5	`a4ae0e5abc9cac3a9957410ca9e1ee7b`
SHA256	`0fd17051704e7e6b143b4d5ac9aedba07c384b7171dbcb2a3cb303efbfdff4e4`
CRC32	`C1EE7246`
ssdeep	`24576:zzC5Ndogr6sdq14CvBnRfmLK3m2YpWmf:zSVeK44CvBnRfVNGW`
Yara	Win_Backdoor_AsyncRAT_Zero - Win Backdoor AsyncRAT Is_DotNET_EXE - (no description) Generic_Malware_Zero - Generic Malware IsPE32 - (no description) Admin_Tool_IN_Zero - Admin Tool Sysinternals PE_Header_Zero - PE File Signature Malicious_Library_Zero - Malicious_Library

vbc.exe "C:\Users\test22\AppData\Local\Temp\vbc.exe"
112
- vbc.exe "C:\Users\test22\AppData\Local\Temp\vbc.exe"
  604

Name	Response	Post-Analysis Lookup
No hosts contacted.

IP Address	Status	Action
164.124.101.2	Active	Moloch

Suricata Alerts

No Suricata Alerts

Suricata TLS

No Suricata TLS

Queries for the computername (4 events)

Time & API	Arguments	Status	Return
GetComputerNameW June 29, 2021, 6:03 p.m.	computer_name: TEST22-PC	1	1
GetComputerNameW June 29, 2021, 6:03 p.m.	computer_name: TEST22-PC	1	1
GetComputerNameW June 29, 2021, 6:03 p.m.	computer_name: TEST22-PC	1	1
GetComputerNameW June 29, 2021, 6:03 p.m.	computer_name: TEST22-PC	1	1

Checks if process is being debugged by a debugger (4 events)

Time & API	Arguments	Status	Return	Repeated
IsDebuggerPresent June 29, 2021, 5:57 p.m.			0	0
IsDebuggerPresent June 29, 2021, 5:57 p.m.			0	0
IsDebuggerPresent June 29, 2021, 6:03 p.m.			0	0
IsDebuggerPresent June 29, 2021, 6:03 p.m.			0	0

Uses Windows APIs to generate a cryptographic key (3 events)

Time & API	Arguments	Status	Return
CryptExportKey June 29, 2021, 5:57 p.m.	buffer: <INVALID POINTER> crypto_handle: 0x006db390 flags: 0 crypto_export_handle: 0x00000000 blob_type: 6	1	1
CryptExportKey June 29, 2021, 5:57 p.m.	buffer: <INVALID POINTER> crypto_handle: 0x006db390 flags: 0 crypto_export_handle: 0x00000000 blob_type: 6	1	1
CryptExportKey June 29, 2021, 5:57 p.m.	buffer: <INVALID POINTER> crypto_handle: 0x006db390 flags: 0 crypto_export_handle: 0x00000000 blob_type: 6	1	1

Checks amount of memory in system, this can be used to detect virtual machines that have a low amount of memory available (1 event)

Time & API	Arguments	Status	Return	Repeated
GlobalMemoryStatusEx June 29, 2021, 5:57 p.m.		1	1	0

One or more processes crashed (1 event)

Time & API	Arguments	Status	Return	Repeated
__exception__ June 29, 2021, 6:03 p.m.	stacktrace: 0x5517e0 0x55100b DllUnregisterServerInternal-0x7aa2 clr+0x2652 @ 0x720a2652 DllRegisterServerInternal+0x243 CoUninitializeEE-0xd1f5 clr+0x1264f @ 0x720b264f DllRegisterServerInternal+0xa89 CoUninitializeEE-0xc9af clr+0x12e95 @ 0x720b2e95 DllGetClassObjectInternal+0x2473 CorDllMainForThunk-0x8a088 clr+0xc74ec @ 0x721674ec DllGetClassObjectInternal+0x2597 CorDllMainForThunk-0x89f64 clr+0xc7610 @ 0x72167610 CorDllMainForThunk+0x850 _CorExeMain-0x238a clr+0x151dc4 @ 0x721f1dc4 CorDllMainForThunk+0x8f3 _CorExeMain-0x22e7 clr+0x151e67 @ 0x721f1e67 CorDllMainForThunk+0xa06 _CorExeMain-0x21d4 clr+0x151f7a @ 0x721f1f7a _CorExeMain+0x1c ClrCreateManagedInstance-0x35cd clr+0x15416a @ 0x721f416a _CorExeMain+0x71 GetFileVersion-0x293a mscoreei+0xf5a3 @ 0x736ef5a3 CreateConfigStream+0x13f GetProcessExecutableHeap-0xad6 mscoree+0x7f16 @ 0x743c7f16 _CorExeMain+0x8 CreateConfigStream-0x2ff4 mscoree+0x4de3 @ 0x743c4de3 RtlInitializeExceptionChain+0x63 RtlAllocateActivationContextStack-0xa1 ntdll+0x39ed2 @ 0x773d9ed2 RtlInitializeExceptionChain+0x36 RtlAllocateActivationContextStack-0xce ntdll+0x39ea5 @ 0x773d9ea5 exception.instruction_r: 8b 01 8b 40 28 ff 10 89 45 e0 8b 4d dc e8 43 d7 exception.instruction: mov eax, dword ptr [ecx] exception.exception_code: 0xc0000005 exception.symbol: exception.address: 0x551c53 registers.esp: 3273408 registers.edi: 3273432 registers.eax: 0 registers.ebp: 3273444 registers.edx: 195 registers.ebx: 3273700 registers.esi: 39242384 registers.ecx: 0	1	0	0

Time & API

Arguments

Status

Return

Repeated

__exception__

June 29, 2021, 6:03 p.m.

stacktrace:

0x5517e0
0x55100b
DllUnregisterServerInternal-0x7aa2 clr+0x2652 @ 0x720a2652
DllRegisterServerInternal+0x243 CoUninitializeEE-0xd1f5 clr+0x1264f @ 0x720b264f
DllRegisterServerInternal+0xa89 CoUninitializeEE-0xc9af clr+0x12e95 @ 0x720b2e95
DllGetClassObjectInternal+0x2473 CorDllMainForThunk-0x8a088 clr+0xc74ec @ 0x721674ec
DllGetClassObjectInternal+0x2597 CorDllMainForThunk-0x89f64 clr+0xc7610 @ 0x72167610
CorDllMainForThunk+0x850 _CorExeMain-0x238a clr+0x151dc4 @ 0x721f1dc4
CorDllMainForThunk+0x8f3 _CorExeMain-0x22e7 clr+0x151e67 @ 0x721f1e67
CorDllMainForThunk+0xa06 _CorExeMain-0x21d4 clr+0x151f7a @ 0x721f1f7a
_CorExeMain+0x1c ClrCreateManagedInstance-0x35cd clr+0x15416a @ 0x721f416a
_CorExeMain+0x71 GetFileVersion-0x293a mscoreei+0xf5a3 @ 0x736ef5a3
CreateConfigStream+0x13f GetProcessExecutableHeap-0xad6 mscoree+0x7f16 @ 0x743c7f16
_CorExeMain+0x8 CreateConfigStream-0x2ff4 mscoree+0x4de3 @ 0x743c4de3
RtlInitializeExceptionChain+0x63 RtlAllocateActivationContextStack-0xa1 ntdll+0x39ed2 @ 0x773d9ed2
RtlInitializeExceptionChain+0x36 RtlAllocateActivationContextStack-0xce ntdll+0x39ea5 @ 0x773d9ea5

exception.instruction_r: 8b 01 8b 40 28 ff 10 89 45 e0 8b 4d dc e8 43 d7
exception.instruction: mov eax, dword ptr [ecx]
exception.exception_code: 0xc0000005
exception.symbol:
exception.address: 0x551c53
registers.esp: 3273408
registers.edi: 3273432
registers.eax: 0
registers.ebp: 3273444
registers.edx: 195
registers.ebx: 3273700
registers.esi: 39242384
registers.ecx: 0

One or more potentially interesting buffers were extracted, these generally contain injected code, configuration data, etc.

Allocates read-write-execute memory (usually to unpack itself) (50 out of 76 events)

Time & API	Arguments	Status
NtAllocateVirtualMemory June 29, 2021, 5:57 p.m.	process_identifier: 112 region_size: 1769472 stack_dep_bypass: 0 stack_pivoted: 0 heap_dep_bypass: 0 protection: 64 (PAGE_EXECUTE_READWRITE) base_address: 0x00930000 allocation_type: 8192 (MEM_RESERVE) process_handle: 0xffffffff	1
NtAllocateVirtualMemory June 29, 2021, 5:57 p.m.	process_identifier: 112 region_size: 4096 stack_dep_bypass: 0 stack_pivoted: 0 heap_dep_bypass: 1 protection: 64 (PAGE_EXECUTE_READWRITE) base_address: 0x00aa0000 allocation_type: 4096 (MEM_COMMIT) process_handle: 0xffffffff	1
NtProtectVirtualMemory June 29, 2021, 5:57 p.m.	process_identifier: 112 stack_dep_bypass: 0 stack_pivoted: 0 heap_dep_bypass: 0 length: 4096 protection: 64 (PAGE_EXECUTE_READWRITE) base_address: 0x72741000 process_handle: 0xffffffff	1
NtProtectVirtualMemory June 29, 2021, 5:57 p.m.	process_identifier: 112 stack_dep_bypass: 0 stack_pivoted: 0 heap_dep_bypass: 0 length: 4096 protection: 64 (PAGE_EXECUTE_READWRITE) base_address: 0x72742000 process_handle: 0xffffffff	1
NtAllocateVirtualMemory June 29, 2021, 5:57 p.m.	process_identifier: 112 region_size: 1507328 stack_dep_bypass: 0 stack_pivoted: 0 heap_dep_bypass: 0 protection: 64 (PAGE_EXECUTE_READWRITE) base_address: 0x00520000 allocation_type: 8192 (MEM_RESERVE) process_handle: 0xffffffff	1
NtAllocateVirtualMemory June 29, 2021, 5:57 p.m.	process_identifier: 112 region_size: 4096 stack_dep_bypass: 0 stack_pivoted: 0 heap_dep_bypass: 1 protection: 64 (PAGE_EXECUTE_READWRITE) base_address: 0x00650000 allocation_type: 4096 (MEM_COMMIT) process_handle: 0xffffffff	1
NtAllocateVirtualMemory June 29, 2021, 5:57 p.m.	process_identifier: 112 region_size: 4096 stack_dep_bypass: 0 stack_pivoted: 0 heap_dep_bypass: 1 protection: 64 (PAGE_EXECUTE_READWRITE) base_address: 0x00392000 allocation_type: 4096 (MEM_COMMIT) process_handle: 0xffffffff	1
NtAllocateVirtualMemory June 29, 2021, 5:57 p.m.	process_identifier: 112 region_size: 4096 stack_dep_bypass: 0 stack_pivoted: 0 heap_dep_bypass: 1 protection: 64 (PAGE_EXECUTE_READWRITE) base_address: 0x003c5000 allocation_type: 4096 (MEM_COMMIT) process_handle: 0xffffffff	1
NtAllocateVirtualMemory June 29, 2021, 5:57 p.m.	process_identifier: 112 region_size: 4096 stack_dep_bypass: 0 stack_pivoted: 0 heap_dep_bypass: 1 protection: 64 (PAGE_EXECUTE_READWRITE) base_address: 0x003cb000 allocation_type: 4096 (MEM_COMMIT) process_handle: 0xffffffff	1
NtAllocateVirtualMemory June 29, 2021, 5:57 p.m.	process_identifier: 112 region_size: 4096 stack_dep_bypass: 0 stack_pivoted: 0 heap_dep_bypass: 1 protection: 64 (PAGE_EXECUTE_READWRITE) base_address: 0x003c7000 allocation_type: 4096 (MEM_COMMIT) process_handle: 0xffffffff	1
NtAllocateVirtualMemory June 29, 2021, 5:57 p.m.	process_identifier: 112 region_size: 4096 stack_dep_bypass: 0 stack_pivoted: 0 heap_dep_bypass: 1 protection: 64 (PAGE_EXECUTE_READWRITE) base_address: 0x003ac000 allocation_type: 4096 (MEM_COMMIT) process_handle: 0xffffffff	1
NtAllocateVirtualMemory June 29, 2021, 5:57 p.m.	process_identifier: 112 region_size: 4096 stack_dep_bypass: 0 stack_pivoted: 0 heap_dep_bypass: 1 protection: 64 (PAGE_EXECUTE_READWRITE) base_address: 0x00610000 allocation_type: 4096 (MEM_COMMIT) process_handle: 0xffffffff	1
NtAllocateVirtualMemory June 29, 2021, 5:57 p.m.	process_identifier: 112 region_size: 4096 stack_dep_bypass: 0 stack_pivoted: 0 heap_dep_bypass: 1 protection: 64 (PAGE_EXECUTE_READWRITE) base_address: 0x0039a000 allocation_type: 4096 (MEM_COMMIT) process_handle: 0xffffffff	1
NtAllocateVirtualMemory June 29, 2021, 5:57 p.m.	process_identifier: 112 region_size: 4096 stack_dep_bypass: 0 stack_pivoted: 0 heap_dep_bypass: 1 protection: 64 (PAGE_EXECUTE_READWRITE) base_address: 0x003ba000 allocation_type: 4096 (MEM_COMMIT) process_handle: 0xffffffff	1
NtAllocateVirtualMemory June 29, 2021, 5:57 p.m.	process_identifier: 112 region_size: 4096 stack_dep_bypass: 0 stack_pivoted: 0 heap_dep_bypass: 1 protection: 64 (PAGE_EXECUTE_READWRITE) base_address: 0x003b7000 allocation_type: 4096 (MEM_COMMIT) process_handle: 0xffffffff	1
NtAllocateVirtualMemory June 29, 2021, 5:57 p.m.	process_identifier: 112 region_size: 4096 stack_dep_bypass: 0 stack_pivoted: 0 heap_dep_bypass: 1 protection: 64 (PAGE_EXECUTE_READWRITE) base_address: 0x003aa000 allocation_type: 4096 (MEM_COMMIT) process_handle: 0xffffffff	1
NtAllocateVirtualMemory June 29, 2021, 5:57 p.m.	process_identifier: 112 region_size: 327680 stack_dep_bypass: 0 stack_pivoted: 0 heap_dep_bypass: 0 protection: 64 (PAGE_EXECUTE_READWRITE) base_address: 0x7ef50000 allocation_type: 1056768 (MEM_RESERVE\|MEM_TOP_DOWN) process_handle: 0xffffffff	1
NtAllocateVirtualMemory June 29, 2021, 5:57 p.m.	process_identifier: 112 region_size: 4096 stack_dep_bypass: 0 stack_pivoted: 0 heap_dep_bypass: 1 protection: 64 (PAGE_EXECUTE_READWRITE) base_address: 0x7ef50000 allocation_type: 4096 (MEM_COMMIT) process_handle: 0xffffffff	1
NtAllocateVirtualMemory June 29, 2021, 5:57 p.m.	process_identifier: 112 region_size: 4096 stack_dep_bypass: 0 stack_pivoted: 0 heap_dep_bypass: 1 protection: 64 (PAGE_EXECUTE_READWRITE) base_address: 0x7ef50000 allocation_type: 4096 (MEM_COMMIT) process_handle: 0xffffffff	1
NtAllocateVirtualMemory June 29, 2021, 5:57 p.m.	process_identifier: 112 region_size: 4096 stack_dep_bypass: 0 stack_pivoted: 0 heap_dep_bypass: 1 protection: 64 (PAGE_EXECUTE_READWRITE) base_address: 0x7ef58000 allocation_type: 4096 (MEM_COMMIT) process_handle: 0xffffffff	1
NtAllocateVirtualMemory June 29, 2021, 5:57 p.m.	process_identifier: 112 region_size: 65536 stack_dep_bypass: 0 stack_pivoted: 0 heap_dep_bypass: 0 protection: 64 (PAGE_EXECUTE_READWRITE) base_address: 0x7ef40000 allocation_type: 1056768 (MEM_RESERVE\|MEM_TOP_DOWN) process_handle: 0xffffffff	1
NtAllocateVirtualMemory June 29, 2021, 5:57 p.m.	process_identifier: 112 region_size: 4096 stack_dep_bypass: 0 stack_pivoted: 0 heap_dep_bypass: 1 protection: 64 (PAGE_EXECUTE_READWRITE) base_address: 0x7ef40000 allocation_type: 4096 (MEM_COMMIT) process_handle: 0xffffffff	1
NtAllocateVirtualMemory June 29, 2021, 5:57 p.m.	process_identifier: 112 region_size: 4096 stack_dep_bypass: 0 stack_pivoted: 0 heap_dep_bypass: 1 protection: 64 (PAGE_EXECUTE_READWRITE) base_address: 0x00611000 allocation_type: 4096 (MEM_COMMIT) process_handle: 0xffffffff	1
NtProtectVirtualMemory June 29, 2021, 5:57 p.m.	process_identifier: 112 stack_dep_bypass: 0 stack_pivoted: 0 heap_dep_bypass: 0 length: 4096 protection: 64 (PAGE_EXECUTE_READWRITE) base_address: 0x6dee2000 process_handle: 0xffffffff	1
NtAllocateVirtualMemory June 29, 2021, 5:57 p.m.	process_identifier: 112 region_size: 4096 stack_dep_bypass: 0 stack_pivoted: 0 heap_dep_bypass: 1 protection: 64 (PAGE_EXECUTE_READWRITE) base_address: 0x003b6000 allocation_type: 4096 (MEM_COMMIT) process_handle: 0xffffffff	1
NtAllocateVirtualMemory June 29, 2021, 5:57 p.m.	process_identifier: 112 region_size: 4096 stack_dep_bypass: 0 stack_pivoted: 0 heap_dep_bypass: 1 protection: 64 (PAGE_EXECUTE_READWRITE) base_address: 0x00612000 allocation_type: 4096 (MEM_COMMIT) process_handle: 0xffffffff	1
NtAllocateVirtualMemory June 29, 2021, 5:57 p.m.	process_identifier: 112 region_size: 4096 stack_dep_bypass: 0 stack_pivoted: 0 heap_dep_bypass: 1 protection: 64 (PAGE_EXECUTE_READWRITE) base_address: 0x0039c000 allocation_type: 4096 (MEM_COMMIT) process_handle: 0xffffffff	1
NtAllocateVirtualMemory June 29, 2021, 5:57 p.m.	process_identifier: 112 region_size: 4096 stack_dep_bypass: 0 stack_pivoted: 0 heap_dep_bypass: 1 protection: 64 (PAGE_EXECUTE_READWRITE) base_address: 0x00613000 allocation_type: 4096 (MEM_COMMIT) process_handle: 0xffffffff	1
NtAllocateVirtualMemory June 29, 2021, 5:58 p.m.	process_identifier: 112 region_size: 4096 stack_dep_bypass: 0 stack_pivoted: 0 heap_dep_bypass: 1 protection: 64 (PAGE_EXECUTE_READWRITE) base_address: 0x003ad000 allocation_type: 4096 (MEM_COMMIT) process_handle: 0xffffffff	1
NtAllocateVirtualMemory June 29, 2021, 5:58 p.m.	process_identifier: 112 region_size: 4096 stack_dep_bypass: 0 stack_pivoted: 0 heap_dep_bypass: 1 protection: 64 (PAGE_EXECUTE_READWRITE) base_address: 0x00614000 allocation_type: 4096 (MEM_COMMIT) process_handle: 0xffffffff	1
NtAllocateVirtualMemory June 29, 2021, 5:58 p.m.	process_identifier: 112 region_size: 4096 stack_dep_bypass: 0 stack_pivoted: 0 heap_dep_bypass: 1 protection: 64 (PAGE_EXECUTE_READWRITE) base_address: 0x00615000 allocation_type: 4096 (MEM_COMMIT) process_handle: 0xffffffff	1
NtAllocateVirtualMemory June 29, 2021, 5:58 p.m.	process_identifier: 112 region_size: 4096 stack_dep_bypass: 0 stack_pivoted: 0 heap_dep_bypass: 1 protection: 64 (PAGE_EXECUTE_READWRITE) base_address: 0x00616000 allocation_type: 4096 (MEM_COMMIT) process_handle: 0xffffffff	1
NtAllocateVirtualMemory June 29, 2021, 5:58 p.m.	process_identifier: 112 region_size: 4096 stack_dep_bypass: 0 stack_pivoted: 0 heap_dep_bypass: 1 protection: 64 (PAGE_EXECUTE_READWRITE) base_address: 0x00617000 allocation_type: 4096 (MEM_COMMIT) process_handle: 0xffffffff	1
NtAllocateVirtualMemory June 29, 2021, 5:58 p.m.	process_identifier: 112 region_size: 4096 stack_dep_bypass: 0 stack_pivoted: 0 heap_dep_bypass: 1 protection: 64 (PAGE_EXECUTE_READWRITE) base_address: 0x00618000 allocation_type: 4096 (MEM_COMMIT) process_handle: 0xffffffff	1
NtAllocateVirtualMemory June 29, 2021, 5:58 p.m.	process_identifier: 112 region_size: 4096 stack_dep_bypass: 0 stack_pivoted: 0 heap_dep_bypass: 1 protection: 64 (PAGE_EXECUTE_READWRITE) base_address: 0x00619000 allocation_type: 4096 (MEM_COMMIT) process_handle: 0xffffffff	1
NtAllocateVirtualMemory June 29, 2021, 5:58 p.m.	process_identifier: 112 region_size: 4096 stack_dep_bypass: 0 stack_pivoted: 0 heap_dep_bypass: 1 protection: 64 (PAGE_EXECUTE_READWRITE) base_address: 0x0061a000 allocation_type: 4096 (MEM_COMMIT) process_handle: 0xffffffff	1
NtAllocateVirtualMemory June 29, 2021, 5:58 p.m.	process_identifier: 112 region_size: 4096 stack_dep_bypass: 0 stack_pivoted: 0 heap_dep_bypass: 1 protection: 64 (PAGE_EXECUTE_READWRITE) base_address: 0x0061b000 allocation_type: 4096 (MEM_COMMIT) process_handle: 0xffffffff	1
NtAllocateVirtualMemory June 29, 2021, 5:58 p.m.	process_identifier: 112 region_size: 4096 stack_dep_bypass: 0 stack_pivoted: 0 heap_dep_bypass: 1 protection: 64 (PAGE_EXECUTE_READWRITE) base_address: 0x0061c000 allocation_type: 4096 (MEM_COMMIT) process_handle: 0xffffffff	1
NtAllocateVirtualMemory June 29, 2021, 5:58 p.m.	process_identifier: 112 region_size: 4096 stack_dep_bypass: 0 stack_pivoted: 0 heap_dep_bypass: 1 protection: 64 (PAGE_EXECUTE_READWRITE) base_address: 0x0061d000 allocation_type: 4096 (MEM_COMMIT) process_handle: 0xffffffff	1
NtAllocateVirtualMemory June 29, 2021, 5:58 p.m.	process_identifier: 112 region_size: 4096 stack_dep_bypass: 0 stack_pivoted: 0 heap_dep_bypass: 1 protection: 64 (PAGE_EXECUTE_READWRITE) base_address: 0x0061e000 allocation_type: 4096 (MEM_COMMIT) process_handle: 0xffffffff	1
NtAllocateVirtualMemory June 29, 2021, 5:58 p.m.	process_identifier: 112 region_size: 4096 stack_dep_bypass: 0 stack_pivoted: 0 heap_dep_bypass: 1 protection: 64 (PAGE_EXECUTE_READWRITE) base_address: 0x0061f000 allocation_type: 4096 (MEM_COMMIT) process_handle: 0xffffffff	1
NtAllocateVirtualMemory June 29, 2021, 5:58 p.m.	process_identifier: 112 region_size: 4096 stack_dep_bypass: 0 stack_pivoted: 0 heap_dep_bypass: 1 protection: 64 (PAGE_EXECUTE_READWRITE) base_address: 0x02560000 allocation_type: 4096 (MEM_COMMIT) process_handle: 0xffffffff	1
NtAllocateVirtualMemory June 29, 2021, 5:58 p.m.	process_identifier: 112 region_size: 4096 stack_dep_bypass: 0 stack_pivoted: 0 heap_dep_bypass: 1 protection: 64 (PAGE_EXECUTE_READWRITE) base_address: 0x02561000 allocation_type: 4096 (MEM_COMMIT) process_handle: 0xffffffff	1
NtAllocateVirtualMemory June 29, 2021, 6:03 p.m.	process_identifier: 604 region_size: 1638400 stack_dep_bypass: 0 stack_pivoted: 0 heap_dep_bypass: 0 protection: 64 (PAGE_EXECUTE_READWRITE) base_address: 0x00800000 allocation_type: 8192 (MEM_RESERVE) process_handle: 0xffffffff	1
NtAllocateVirtualMemory June 29, 2021, 6:03 p.m.	process_identifier: 604 region_size: 4096 stack_dep_bypass: 0 stack_pivoted: 0 heap_dep_bypass: 1 protection: 64 (PAGE_EXECUTE_READWRITE) base_address: 0x00950000 allocation_type: 4096 (MEM_COMMIT) process_handle: 0xffffffff	1
NtProtectVirtualMemory June 29, 2021, 6:03 p.m.	process_identifier: 604 stack_dep_bypass: 0 stack_pivoted: 0 heap_dep_bypass: 0 length: 4096 protection: 64 (PAGE_EXECUTE_READWRITE) base_address: 0x720a1000 process_handle: 0xffffffff	1
NtProtectVirtualMemory June 29, 2021, 6:03 p.m.	process_identifier: 604 stack_dep_bypass: 0 stack_pivoted: 0 heap_dep_bypass: 0 length: 4096 protection: 64 (PAGE_EXECUTE_READWRITE) base_address: 0x720a2000 process_handle: 0xffffffff	1
NtAllocateVirtualMemory June 29, 2021, 6:03 p.m.	process_identifier: 604 region_size: 1245184 stack_dep_bypass: 0 stack_pivoted: 0 heap_dep_bypass: 0 protection: 64 (PAGE_EXECUTE_READWRITE) base_address: 0x02200000 allocation_type: 8192 (MEM_RESERVE) process_handle: 0xffffffff	1
NtAllocateVirtualMemory June 29, 2021, 6:03 p.m.	process_identifier: 604 region_size: 4096 stack_dep_bypass: 0 stack_pivoted: 0 heap_dep_bypass: 1 protection: 64 (PAGE_EXECUTE_READWRITE) base_address: 0x022f0000 allocation_type: 4096 (MEM_COMMIT) process_handle: 0xffffffff	1
NtAllocateVirtualMemory June 29, 2021, 6:03 p.m.	process_identifier: 604 region_size: 4096 stack_dep_bypass: 0 stack_pivoted: 0 heap_dep_bypass: 1 protection: 64 (PAGE_EXECUTE_READWRITE) base_address: 0x003a2000 allocation_type: 4096 (MEM_COMMIT) process_handle: 0xffffffff	1

The binary likely contains encrypted or compressed data indicative of a packer (2 events)

section

{u'size_of_data': u'0x000df600', u'virtual_address': u'0x00002000', u'entropy': 7.557347574509104, u'name': u'.text', u'virtual_size': u'0x000df480'}

entropy

7.55734757451

description

A section with a high entropy has been found

entropy

0.927829698858

description

Overall entropy of this PE file is high

Checks for the Locally Unique Identifier on the system for a suspicious privilege (1 event)

Time & API	Arguments	Status	Return	Repeated
LookupPrivilegeValueW June 29, 2021, 6:03 p.m.	system_name: privilege_name: SeDebugPrivilege	1	1	0

Yara rule detected in process memory (10 events)

description	Communications smtp	rule	Network_SMTP_dotNet
description	Run a KeyLogger	rule	KeyLogger
description	(no description)	rule	DebuggerCheck__GlobalFlags
description	(no description)	rule	DebuggerCheck__QueryInfo
description	(no description)	rule	DebuggerHiding__Thread
description	(no description)	rule	DebuggerHiding__Active
description	(no description)	rule	ThreadControl__Context
description	(no description)	rule	SEH__vectored
description	Bypass DEP	rule	disable_dep
description	Affect hook table	rule	win_hook

Allocates execute permission to another process indicative of possible code injection (1 event)

Time & API	Arguments	Status	Return	Repeated
NtAllocateVirtualMemory June 29, 2021, 5:58 p.m.	process_identifier: 604 region_size: 245760 stack_dep_bypass: 0 stack_pivoted: 0 heap_dep_bypass: 0 protection: 64 (PAGE_EXECUTE_READWRITE) base_address: 0x00400000 allocation_type: 12288 (MEM_COMMIT\|MEM_RESERVE) process_handle: 0x00000268	1	0	0

Looks for the Windows Idle Time to determine the uptime (1 event)

Time & API	Arguments	Status	Return	Repeated
NtQuerySystemInformation June 29, 2021, 6:03 p.m.	information_class: 8 (SystemProcessorPerformanceInformation)	1	0	0

A process attempted to delay the analysis task. (1 event)

description

vbc.exe tried to sleep 10912888 seconds, actually delayed analysis time by 10912888 seconds

Potential code injection by writing to the memory of another process (4 events)

Time & API	Arguments	Status	Return
WriteProcessMemory June 29, 2021, 5:58 p.m.	buffer: MZÿÿ¸@º´ Í!¸LÍ!This program cannot be run in DOS mode. $PELÌ`àX®v @ À@XvSH H.text´V X `.rsrcHZ@@.reloc `@B base_address: 0x00400000 process_identifier: 604 process_handle: 0x00000268	1	1
WriteProcessMemory June 29, 2021, 5:58 p.m.	buffer: 8Ph ´Xê´4VS_VERSION_INFO½ïþ?DVarFileInfo$Translation°StringFileInfoð000004b0,FileDescription 0FileVersion0.0.0.0p(InternalNameRAYAmsAelVhFwcmwcIElgfYJmTAxXvbDgeQ.exe(LegalCopyright x(OriginalFilenameRAYAmsAelVhFwcmwcIElgfYJmTAxXvbDgeQ.exe4ProductVersion0.0.0.08Assembly Version0.0.0.0ï»¿<?xml version="1.0" encoding="UTF-8" standalone="yes"?> <assembly xmlns="urn:schemas-microsoft-com:asm.v1" manifestVersion="1.0"> <assemblyIdentity version="1.0.0.0" name="MyApplication.app"/> <trustInfo xmlns="urn:schemas-microsoft-com:asm.v2"> <security> <requestedPrivileges xmlns="urn:schemas-microsoft-com:asm.v3"> <requestedExecutionLevel level="asInvoker" uiAccess="false"/> </requestedPrivileges> </security> </trustInfo> </assembly> base_address: 0x00438000 process_identifier: 604 process_handle: 0x00000268	1	1
WriteProcessMemory June 29, 2021, 5:58 p.m.	buffer: p°6 base_address: 0x0043a000 process_identifier: 604 process_handle: 0x00000268	1	1
WriteProcessMemory June 29, 2021, 5:58 p.m.	buffer: @ base_address: 0x7efde008 process_identifier: 604 process_handle: 0x00000268	1	1

Code injection by writing an executable or DLL to the memory of another process (1 event)

Time & API	Arguments	Status	Return	Repeated
WriteProcessMemory June 29, 2021, 5:58 p.m.	buffer: MZÿÿ¸@º´ Í!¸LÍ!This program cannot be run in DOS mode. $PELÌ`àX®v @ À@XvSH H.text´V X `.rsrcHZ@@.reloc `@B base_address: 0x00400000 process_identifier: 604 process_handle: 0x00000268	1	1	0

Used NtSetContextThread to modify a thread in a remote process indicative of process injection (2 events)

Time & API	Arguments	Status	Return	Repeated
Process injection	Process 112 called NtSetContextThread to modify thread in remote process 604
NtSetContextThread June 29, 2021, 5:58 p.m.	registers.eip: 0 registers.esp: 0 registers.edi: 0 registers.eax: 4421294 registers.ebp: 0 registers.edx: 0 registers.ebx: 2130567168 registers.esi: 0 registers.ecx: 0 thread_handle: 0x00000264 process_identifier: 604	1	0	0

Resumed a suspended thread in a remote process potentially indicative of process injection (2 events)

Time & API	Arguments	Status	Return	Repeated
Process injection	Process 112 resumed a thread in remote process 604
NtResumeThread June 29, 2021, 5:58 p.m.	thread_handle: 0x00000264 suspend_count: 1 process_identifier: 604	1	0	0

File has been identified by 26 AntiVirus engines on VirusTotal as malicious (26 events)

Elastic	malicious (high confidence)
MicroWorld-eScan	Trojan.GenericKDZ.76134
FireEye	Generic.mg.a4ae0e5abc9cac3a
McAfee	AgentTesla-FDAH!A4AE0E5ABC9C
Cylance	Unsafe
Cybereason	malicious.8682d0
Cyren	W32/MSIL_Kryptik.DLO.gen!Eldorado
Symantec	Scr.Malcode!gdn34
ESET-NOD32	a variant of MSIL/Kryptik.ABSE
APEX	Malicious
Avast	Win32:PWSX-gen [Trj]
Kaspersky	HEUR:Trojan.MSIL.Taskun.gen
BitDefender	Trojan.GenericKDZ.76134
Emsisoft	Trojan.GenericKDZ.76134 (B)
DrWeb	Trojan.Inject4.13334
McAfee-GW-Edition	Artemis!Trojan
Microsoft	Trojan:Win32/Wacatac.B!ml
GData	Trojan.GenericKDZ.76134
Cynet	Malicious (score: 100)
AhnLab-V3	Malware/Win32.RL_Generic.R357253
BitDefenderTheta	Gen:NN.ZemsilF.34770.8m0@ammgDo
MAX	malware (ai score=89)
SentinelOne	Static AI - Malicious PE
MaxSecure	Trojan.Malware.300983.susgen
Fortinet	MSIL/Kryptik.ABRN!tr
AVG	Win32:PWSX-gen [Trj]

Executed a process and injected code into it, probably while unpacking (24 events)

Time & API	Arguments	Status	Return
NtResumeThread June 29, 2021, 5:57 p.m.	thread_handle: 0x000000dc suspend_count: 1 process_identifier: 112	1	0
NtResumeThread June 29, 2021, 5:57 p.m.	thread_handle: 0x00000150 suspend_count: 1 process_identifier: 112	1	0
NtResumeThread June 29, 2021, 5:57 p.m.	thread_handle: 0x00000190 suspend_count: 1 process_identifier: 112	1	0
NtResumeThread June 29, 2021, 5:58 p.m.	thread_handle: 0x00000244 suspend_count: 1 process_identifier: 112	1	0
CreateProcessInternalW June 29, 2021, 5:58 p.m.	thread_identifier: 752 thread_handle: 0x00000264 process_identifier: 604 current_directory: filepath: C:\Users\test22\AppData\Local\Temp\vbc.exe track: 1 command_line: filepath_r: C:\Users\test22\AppData\Local\Temp\vbc.exe stack_pivoted: 0 creation_flags: 134217732 (CREATE_NO_WINDOW\|CREATE_SUSPENDED) inherit_handles: 0 process_handle: 0x00000268	1	1
NtGetContextThread June 29, 2021, 5:58 p.m.	thread_handle: 0x00000264	1	0
NtAllocateVirtualMemory June 29, 2021, 5:58 p.m.	process_identifier: 604 region_size: 245760 stack_dep_bypass: 0 stack_pivoted: 0 heap_dep_bypass: 0 protection: 64 (PAGE_EXECUTE_READWRITE) base_address: 0x00400000 allocation_type: 12288 (MEM_COMMIT\|MEM_RESERVE) process_handle: 0x00000268	1	0
WriteProcessMemory June 29, 2021, 5:58 p.m.	buffer: MZÿÿ¸@º´ Í!¸LÍ!This program cannot be run in DOS mode. $PELÌ`àX®v @ À@XvSH H.text´V X `.rsrcHZ@@.reloc `@B base_address: 0x00400000 process_identifier: 604 process_handle: 0x00000268	1	1
WriteProcessMemory June 29, 2021, 5:58 p.m.	buffer: base_address: 0x00402000 process_identifier: 604 process_handle: 0x00000268	1	1
WriteProcessMemory June 29, 2021, 5:58 p.m.	buffer: 8Ph ´Xê´4VS_VERSION_INFO½ïþ?DVarFileInfo$Translation°StringFileInfoð000004b0,FileDescription 0FileVersion0.0.0.0p(InternalNameRAYAmsAelVhFwcmwcIElgfYJmTAxXvbDgeQ.exe(LegalCopyright x(OriginalFilenameRAYAmsAelVhFwcmwcIElgfYJmTAxXvbDgeQ.exe4ProductVersion0.0.0.08Assembly Version0.0.0.0ï»¿<?xml version="1.0" encoding="UTF-8" standalone="yes"?> <assembly xmlns="urn:schemas-microsoft-com:asm.v1" manifestVersion="1.0"> <assemblyIdentity version="1.0.0.0" name="MyApplication.app"/> <trustInfo xmlns="urn:schemas-microsoft-com:asm.v2"> <security> <requestedPrivileges xmlns="urn:schemas-microsoft-com:asm.v3"> <requestedExecutionLevel level="asInvoker" uiAccess="false"/> </requestedPrivileges> </security> </trustInfo> </assembly> base_address: 0x00438000 process_identifier: 604 process_handle: 0x00000268	1	1
WriteProcessMemory June 29, 2021, 5:58 p.m.	buffer: p°6 base_address: 0x0043a000 process_identifier: 604 process_handle: 0x00000268	1	1
WriteProcessMemory June 29, 2021, 5:58 p.m.	buffer: @ base_address: 0x7efde008 process_identifier: 604 process_handle: 0x00000268	1	1
NtSetContextThread June 29, 2021, 5:58 p.m.	registers.eip: 0 registers.esp: 0 registers.edi: 0 registers.eax: 4421294 registers.ebp: 0 registers.edx: 0 registers.ebx: 2130567168 registers.esi: 0 registers.ecx: 0 thread_handle: 0x00000264 process_identifier: 604	1	0
NtResumeThread June 29, 2021, 5:58 p.m.	thread_handle: 0x00000264 suspend_count: 1 process_identifier: 604	1	0
NtResumeThread June 29, 2021, 6:03 p.m.	thread_handle: 0x000000dc suspend_count: 1 process_identifier: 604	1	0
NtResumeThread June 29, 2021, 6:03 p.m.	thread_handle: 0x00000158 suspend_count: 1 process_identifier: 604	1	0
NtResumeThread June 29, 2021, 6:03 p.m.	thread_handle: 0x0000017c suspend_count: 1 process_identifier: 604	1	0
NtResumeThread June 29, 2021, 6:03 p.m.	thread_handle: 0x0000031c suspend_count: 1 process_identifier: 604	1	0
NtResumeThread June 29, 2021, 6:03 p.m.	thread_handle: 0x0000033c suspend_count: 1 process_identifier: 604	1	0
NtResumeThread June 29, 2021, 6:03 p.m.	thread_handle: 0x000003a0 suspend_count: 1 process_identifier: 604	1	0
NtResumeThread June 29, 2021, 6:03 p.m.	thread_handle: 0x0000041c suspend_count: 1 process_identifier: 604	1	0
NtResumeThread June 29, 2021, 6:03 p.m.	thread_handle: 0x00000360 suspend_count: 1 process_identifier: 604	1	0
NtResumeThread June 29, 2021, 6:03 p.m.	thread_handle: 0x00000410 suspend_count: 1 process_identifier: 604	1	0
NtResumeThread June 29, 2021, 6:04 p.m.	thread_handle: 0x00000410 suspend_count: 1 process_identifier: 604	1	0

vbc.exe

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