Summary | ZeroBOX

Category	Machine	Started	Completed
FILE	s1_win7_x6402	May 3, 2021, 4:45 p.m.	May 3, 2021, 4:57 p.m.

Size	1009.5KB
Type	PE32 executable (GUI) Intel 80386 Mono/.Net assembly, for MS Windows
MD5	`3f1ef1dd98cc11a613f80bfbc728adfe`
SHA256	`1cd475136c164ff77b53861d74e6937d8dabe9ad01139a66a1eb91b59a56b5ba`
CRC32	`0068ADFE`
ssdeep	`12288:IzoecRRpxcrXN9ziq+WYTl9x0zqWTqatILhu2AbHzNSPno7ZB6B/4WiQhbEMHEAS:sc/Mr32q+WYTrx0zqW8uSqSWk`
Yara	Malicious_Library_Zero - Malicious_Library Is_DotNET_EXE - (no description) PE_Header_Zero - PE File Signature IsPE32 - (no description)

vbc.exe "C:\Users\test22\AppData\Local\Temp\vbc.exe"
3576
- vbc.exe "C:\Users\test22\AppData\Local\Temp\vbc.exe"
  1756

Name	Response	Post-Analysis Lookup
No hosts contacted.

IP Address	Status	Action
172.217.25.14	Active	Moloch
79.134.225.52	Active	Moloch

Suricata Alerts

No Suricata Alerts

Suricata TLS

No Suricata TLS

Queries for the computername (4 events)

Time & API	Arguments	Status	Return
GetComputerNameW May 3, 2021, 4:47 p.m.	computer_name: TEST22-PC	1	1
GetComputerNameW May 3, 2021, 4:47 p.m.	computer_name: TEST22-PC	1	1
GetComputerNameW May 3, 2021, 4:47 p.m.	computer_name: TEST22-PC	1	1
GetComputerNameW May 3, 2021, 4:47 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 May 3, 2021, 4:45 p.m.			0	0
IsDebuggerPresent May 3, 2021, 4:45 p.m.			0	0
IsDebuggerPresent May 3, 2021, 4:47 p.m.			0	0
IsDebuggerPresent May 3, 2021, 4:47 p.m.			0	0

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

Time & API	Arguments	Status	Return
CryptExportKey May 3, 2021, 4:47 p.m.	buffer: <INVALID POINTER> crypto_handle: 0x005433f0 flags: 0 crypto_export_handle: 0x00000000 blob_type: 6	1	1
CryptExportKey May 3, 2021, 4:47 p.m.	buffer: <INVALID POINTER> crypto_handle: 0x00542cf0 flags: 0 crypto_export_handle: 0x00000000 blob_type: 6	1	1
CryptExportKey May 3, 2021, 4:47 p.m.	buffer: <INVALID POINTER> crypto_handle: 0x00542cf0 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 May 3, 2021, 4:45 p.m.		1	1	0

One or more processes crashed (1 event)

Time & API	Arguments	Status	Return	Repeated
__exception__ May 3, 2021, 4:47 p.m.	stacktrace: 0xa717d8 0xa71003 DllUnregisterServerInternal-0x7aa2 clr+0x2652 @ 0x6f502652 DllRegisterServerInternal+0x243 CoUninitializeEE-0xd1f5 clr+0x1264f @ 0x6f51264f DllRegisterServerInternal+0xa89 CoUninitializeEE-0xc9af clr+0x12e95 @ 0x6f512e95 DllGetClassObjectInternal+0x2473 CorDllMainForThunk-0x8a088 clr+0xc74ec @ 0x6f5c74ec DllGetClassObjectInternal+0x2597 CorDllMainForThunk-0x89f64 clr+0xc7610 @ 0x6f5c7610 CorDllMainForThunk+0x850 _CorExeMain-0x238a clr+0x151dc4 @ 0x6f651dc4 CorDllMainForThunk+0x8f3 _CorExeMain-0x22e7 clr+0x151e67 @ 0x6f651e67 CorDllMainForThunk+0xa06 _CorExeMain-0x21d4 clr+0x151f7a @ 0x6f651f7a _CorExeMain+0x1c ClrCreateManagedInstance-0x35cd clr+0x15416a @ 0x6f65416a _CorExeMain+0x71 GetFileVersion-0x293a mscoreei+0xf5a3 @ 0x7387f5a3 CreateConfigStream+0x13f GetProcessExecutableHeap-0xad6 mscoree+0x7f16 @ 0x744b7f16 _CorExeMain+0x8 CreateConfigStream-0x2ff4 mscoree+0x4de3 @ 0x744b4de3 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 4b d7 exception.instruction: mov eax, dword ptr [ecx] exception.exception_code: 0xc0000005 exception.symbol: exception.address: 0xa71c4b registers.esp: 2158576 registers.edi: 2158600 registers.eax: 0 registers.ebp: 2158612 registers.edx: 195 registers.ebx: 2158860 registers.esi: 42301928 registers.ecx: 0	1	0	0

Time & API

Arguments

Status

Return

Repeated

__exception__

May 3, 2021, 4:47 p.m.

stacktrace:

0xa717d8
0xa71003
DllUnregisterServerInternal-0x7aa2 clr+0x2652 @ 0x6f502652
DllRegisterServerInternal+0x243 CoUninitializeEE-0xd1f5 clr+0x1264f @ 0x6f51264f
DllRegisterServerInternal+0xa89 CoUninitializeEE-0xc9af clr+0x12e95 @ 0x6f512e95
DllGetClassObjectInternal+0x2473 CorDllMainForThunk-0x8a088 clr+0xc74ec @ 0x6f5c74ec
DllGetClassObjectInternal+0x2597 CorDllMainForThunk-0x89f64 clr+0xc7610 @ 0x6f5c7610
CorDllMainForThunk+0x850 _CorExeMain-0x238a clr+0x151dc4 @ 0x6f651dc4
CorDllMainForThunk+0x8f3 _CorExeMain-0x22e7 clr+0x151e67 @ 0x6f651e67
CorDllMainForThunk+0xa06 _CorExeMain-0x21d4 clr+0x151f7a @ 0x6f651f7a
_CorExeMain+0x1c ClrCreateManagedInstance-0x35cd clr+0x15416a @ 0x6f65416a
_CorExeMain+0x71 GetFileVersion-0x293a mscoreei+0xf5a3 @ 0x7387f5a3
CreateConfigStream+0x13f GetProcessExecutableHeap-0xad6 mscoree+0x7f16 @ 0x744b7f16
_CorExeMain+0x8 CreateConfigStream-0x2ff4 mscoree+0x4de3 @ 0x744b4de3
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 4b d7
exception.instruction: mov eax, dword ptr [ecx]
exception.exception_code: 0xc0000005
exception.symbol:
exception.address: 0xa71c4b
registers.esp: 2158576
registers.edi: 2158600
registers.eax: 0
registers.ebp: 2158612
registers.edx: 195
registers.ebx: 2158860
registers.esi: 42301928
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 108 events)

Time & API	Arguments	Status	Return
NtAllocateVirtualMemory May 3, 2021, 4:45 p.m.	process_identifier: 3576 region_size: 1703936 stack_dep_bypass: 0 stack_pivoted: 0 heap_dep_bypass: 0 protection: 64 (PAGE_EXECUTE_READWRITE) base_address: 0x007e0000 allocation_type: 8192 (MEM_RESERVE) process_handle: 0xffffffff	1	0
NtAllocateVirtualMemory May 3, 2021, 4:45 p.m.	process_identifier: 3576 region_size: 4096 stack_dep_bypass: 0 stack_pivoted: 0 heap_dep_bypass: 1 protection: 64 (PAGE_EXECUTE_READWRITE) base_address: 0x00940000 allocation_type: 4096 (MEM_COMMIT) process_handle: 0xffffffff	1	0
NtProtectVirtualMemory May 3, 2021, 4:45 p.m.	process_identifier: 3576 stack_dep_bypass: 0 stack_pivoted: 0 heap_dep_bypass: 0 length: 4096 protection: 64 (PAGE_EXECUTE_READWRITE) base_address: 0x6fba1000 process_handle: 0xffffffff	1	0
NtProtectVirtualMemory May 3, 2021, 4:45 p.m.	process_identifier: 3576 stack_dep_bypass: 0 stack_pivoted: 0 heap_dep_bypass: 0 length: 4096 protection: 64 (PAGE_EXECUTE_READWRITE) base_address: 0x6fba2000 process_handle: 0xffffffff	1	0
NtAllocateVirtualMemory May 3, 2021, 4:45 p.m.	process_identifier: 3576 region_size: 1376256 stack_dep_bypass: 0 stack_pivoted: 0 heap_dep_bypass: 0 protection: 64 (PAGE_EXECUTE_READWRITE) base_address: 0x007e0000 allocation_type: 8192 (MEM_RESERVE) process_handle: 0xffffffff	1	0
NtAllocateVirtualMemory May 3, 2021, 4:45 p.m.	process_identifier: 3576 region_size: 4096 stack_dep_bypass: 0 stack_pivoted: 0 heap_dep_bypass: 1 protection: 64 (PAGE_EXECUTE_READWRITE) base_address: 0x008f0000 allocation_type: 4096 (MEM_COMMIT) process_handle: 0xffffffff	1	0
NtAllocateVirtualMemory May 3, 2021, 4:45 p.m.	process_identifier: 3576 region_size: 4096 stack_dep_bypass: 0 stack_pivoted: 0 heap_dep_bypass: 1 protection: 64 (PAGE_EXECUTE_READWRITE) base_address: 0x00312000 allocation_type: 4096 (MEM_COMMIT) process_handle: 0xffffffff	1	0
NtAllocateVirtualMemory May 3, 2021, 4:45 p.m.	process_identifier: 3576 region_size: 4096 stack_dep_bypass: 0 stack_pivoted: 0 heap_dep_bypass: 1 protection: 64 (PAGE_EXECUTE_READWRITE) base_address: 0x00345000 allocation_type: 4096 (MEM_COMMIT) process_handle: 0xffffffff	1	0
NtAllocateVirtualMemory May 3, 2021, 4:45 p.m.	process_identifier: 3576 region_size: 4096 stack_dep_bypass: 0 stack_pivoted: 0 heap_dep_bypass: 1 protection: 64 (PAGE_EXECUTE_READWRITE) base_address: 0x0034b000 allocation_type: 4096 (MEM_COMMIT) process_handle: 0xffffffff	1	0
NtAllocateVirtualMemory May 3, 2021, 4:45 p.m.	process_identifier: 3576 region_size: 4096 stack_dep_bypass: 0 stack_pivoted: 0 heap_dep_bypass: 1 protection: 64 (PAGE_EXECUTE_READWRITE) base_address: 0x00347000 allocation_type: 4096 (MEM_COMMIT) process_handle: 0xffffffff	1	0
NtAllocateVirtualMemory May 3, 2021, 4:45 p.m.	process_identifier: 3576 region_size: 4096 stack_dep_bypass: 0 stack_pivoted: 0 heap_dep_bypass: 1 protection: 64 (PAGE_EXECUTE_READWRITE) base_address: 0x0032c000 allocation_type: 4096 (MEM_COMMIT) process_handle: 0xffffffff	1	0
NtAllocateVirtualMemory May 3, 2021, 4:45 p.m.	process_identifier: 3576 region_size: 4096 stack_dep_bypass: 0 stack_pivoted: 0 heap_dep_bypass: 1 protection: 64 (PAGE_EXECUTE_READWRITE) base_address: 0x00620000 allocation_type: 4096 (MEM_COMMIT) process_handle: 0xffffffff	1	0
NtAllocateVirtualMemory May 3, 2021, 4:45 p.m.	process_identifier: 3576 region_size: 4096 stack_dep_bypass: 0 stack_pivoted: 0 heap_dep_bypass: 1 protection: 64 (PAGE_EXECUTE_READWRITE) base_address: 0x0031a000 allocation_type: 4096 (MEM_COMMIT) process_handle: 0xffffffff	1	0
NtAllocateVirtualMemory May 3, 2021, 4:45 p.m.	process_identifier: 3576 region_size: 4096 stack_dep_bypass: 0 stack_pivoted: 0 heap_dep_bypass: 1 protection: 64 (PAGE_EXECUTE_READWRITE) base_address: 0x0033a000 allocation_type: 4096 (MEM_COMMIT) process_handle: 0xffffffff	1	0
NtAllocateVirtualMemory May 3, 2021, 4:45 p.m.	process_identifier: 3576 region_size: 4096 stack_dep_bypass: 0 stack_pivoted: 0 heap_dep_bypass: 1 protection: 64 (PAGE_EXECUTE_READWRITE) base_address: 0x00337000 allocation_type: 4096 (MEM_COMMIT) process_handle: 0xffffffff	1	0
NtAllocateVirtualMemory May 3, 2021, 4:45 p.m.	process_identifier: 3576 region_size: 4096 stack_dep_bypass: 0 stack_pivoted: 0 heap_dep_bypass: 1 protection: 64 (PAGE_EXECUTE_READWRITE) base_address: 0x0032a000 allocation_type: 4096 (MEM_COMMIT) process_handle: 0xffffffff	1	0
NtAllocateVirtualMemory May 3, 2021, 4:45 p.m.	process_identifier: 3576 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	0
NtAllocateVirtualMemory May 3, 2021, 4:45 p.m.	process_identifier: 3576 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	0
NtAllocateVirtualMemory May 3, 2021, 4:45 p.m.	process_identifier: 3576 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	0
NtAllocateVirtualMemory May 3, 2021, 4:45 p.m.	process_identifier: 3576 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	0
NtAllocateVirtualMemory May 3, 2021, 4:45 p.m.	process_identifier: 3576 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	0
NtAllocateVirtualMemory May 3, 2021, 4:45 p.m.	process_identifier: 3576 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	0
NtProtectVirtualMemory May 3, 2021, 4:45 p.m.	process_identifier: 3576 stack_dep_bypass: 0 stack_pivoted: 0 heap_dep_bypass: 0 length: 4096 protection: 64 (PAGE_EXECUTE_READWRITE) base_address: 0x73772000 process_handle: 0xffffffff	1	0
NtAllocateVirtualMemory May 3, 2021, 4:45 p.m.	process_identifier: 3576 region_size: 4096 stack_dep_bypass: 0 stack_pivoted: 0 heap_dep_bypass: 1 protection: 64 (PAGE_EXECUTE_READWRITE) base_address: 0x00621000 allocation_type: 4096 (MEM_COMMIT) process_handle: 0xffffffff	1	0
NtAllocateVirtualMemory May 3, 2021, 4:45 p.m.	process_identifier: 3576 region_size: 4096 stack_dep_bypass: 0 stack_pivoted: 0 heap_dep_bypass: 1 protection: 64 (PAGE_EXECUTE_READWRITE) base_address: 0x00336000 allocation_type: 4096 (MEM_COMMIT) process_handle: 0xffffffff	1	0
NtAllocateVirtualMemory May 3, 2021, 4:45 p.m.	process_identifier: 3576 region_size: 4096 stack_dep_bypass: 0 stack_pivoted: 0 heap_dep_bypass: 1 protection: 64 (PAGE_EXECUTE_READWRITE) base_address: 0x00622000 allocation_type: 4096 (MEM_COMMIT) process_handle: 0xffffffff	1	0
NtAllocateVirtualMemory May 3, 2021, 4:47 p.m.	process_identifier: 3576 region_size: 4096 stack_dep_bypass: 0 stack_pivoted: 0 heap_dep_bypass: 1 protection: 64 (PAGE_EXECUTE_READWRITE) base_address: 0x0032d000 allocation_type: 4096 (MEM_COMMIT) process_handle: 0xffffffff	1	0
NtAllocateVirtualMemory May 3, 2021, 4:47 p.m.	process_identifier: 3576 region_size: 4096 stack_dep_bypass: 0 stack_pivoted: 0 heap_dep_bypass: 1 protection: 64 (PAGE_EXECUTE_READWRITE) base_address: 0x00623000 allocation_type: 4096 (MEM_COMMIT) process_handle: 0xffffffff	1	0
NtAllocateVirtualMemory May 3, 2021, 4:47 p.m.	process_identifier: 3576 region_size: 4096 stack_dep_bypass: 0 stack_pivoted: 0 heap_dep_bypass: 1 protection: 64 (PAGE_EXECUTE_READWRITE) base_address: 0x00624000 allocation_type: 4096 (MEM_COMMIT) process_handle: 0xffffffff	1	0
NtAllocateVirtualMemory May 3, 2021, 4:47 p.m.	process_identifier: 3576 region_size: 4096 stack_dep_bypass: 0 stack_pivoted: 0 heap_dep_bypass: 1 protection: 64 (PAGE_EXECUTE_READWRITE) base_address: 0x00625000 allocation_type: 4096 (MEM_COMMIT) process_handle: 0xffffffff	1	0
NtAllocateVirtualMemory May 3, 2021, 4:47 p.m.	process_identifier: 3576 region_size: 4096 stack_dep_bypass: 0 stack_pivoted: 0 heap_dep_bypass: 1 protection: 64 (PAGE_EXECUTE_READWRITE) base_address: 0x00626000 allocation_type: 4096 (MEM_COMMIT) process_handle: 0xffffffff	1	0
NtAllocateVirtualMemory May 3, 2021, 4:47 p.m.	process_identifier: 3576 region_size: 4096 stack_dep_bypass: 0 stack_pivoted: 0 heap_dep_bypass: 1 protection: 64 (PAGE_EXECUTE_READWRITE) base_address: 0x00627000 allocation_type: 4096 (MEM_COMMIT) process_handle: 0xffffffff	1	0
NtAllocateVirtualMemory May 3, 2021, 4:47 p.m.	process_identifier: 3576 region_size: 4096 stack_dep_bypass: 0 stack_pivoted: 0 heap_dep_bypass: 1 protection: 64 (PAGE_EXECUTE_READWRITE) base_address: 0x00628000 allocation_type: 4096 (MEM_COMMIT) process_handle: 0xffffffff	1	0
NtAllocateVirtualMemory May 3, 2021, 4:47 p.m.	process_identifier: 3576 region_size: 12288 stack_dep_bypass: 0 stack_pivoted: 0 heap_dep_bypass: 1 protection: 64 (PAGE_EXECUTE_READWRITE) base_address: 0x00629000 allocation_type: 4096 (MEM_COMMIT) process_handle: 0xffffffff	1	0
NtProtectVirtualMemory May 3, 2021, 4:47 p.m.	process_identifier: 3576 stack_dep_bypass: 0 stack_pivoted: 0 heap_dep_bypass: 0 length: 8 protection: 64 (PAGE_EXECUTE_READWRITE) base_address: 0x050e0178 process_handle: 0xffffffff		3221225550
NtProtectVirtualMemory May 3, 2021, 4:47 p.m.	process_identifier: 3576 stack_dep_bypass: 0 stack_pivoted: 0 heap_dep_bypass: 0 length: 8 protection: 64 (PAGE_EXECUTE_READWRITE) base_address: 0x050e01a0 process_handle: 0xffffffff		3221225550
NtProtectVirtualMemory May 3, 2021, 4:47 p.m.	process_identifier: 3576 stack_dep_bypass: 0 stack_pivoted: 0 heap_dep_bypass: 0 length: 8 protection: 64 (PAGE_EXECUTE_READWRITE) base_address: 0x050e01c8 process_handle: 0xffffffff		3221225550
NtProtectVirtualMemory May 3, 2021, 4:47 p.m.	process_identifier: 3576 stack_dep_bypass: 0 stack_pivoted: 0 heap_dep_bypass: 0 length: 11 protection: 64 (PAGE_EXECUTE_READWRITE) base_address: 0x05157b1e process_handle: 0xffffffff		3221225550
NtProtectVirtualMemory May 3, 2021, 4:47 p.m.	process_identifier: 3576 stack_dep_bypass: 0 stack_pivoted: 0 heap_dep_bypass: 0 length: 11 protection: 64 (PAGE_EXECUTE_READWRITE) base_address: 0x05157b12 process_handle: 0xffffffff		3221225550
NtProtectVirtualMemory May 3, 2021, 4:47 p.m.	process_identifier: 3576 stack_dep_bypass: 0 stack_pivoted: 0 heap_dep_bypass: 0 length: 72 protection: 64 (PAGE_EXECUTE_READWRITE) base_address: 0x050e0208 process_handle: 0xffffffff		3221225550
NtProtectVirtualMemory May 3, 2021, 4:47 p.m.	process_identifier: 3576 stack_dep_bypass: 0 stack_pivoted: 0 heap_dep_bypass: 0 length: 4 protection: 64 (PAGE_EXECUTE_READWRITE) base_address: 0x05131388 process_handle: 0xffffffff		3221225550
NtProtectVirtualMemory May 3, 2021, 4:47 p.m.	process_identifier: 3576 stack_dep_bypass: 0 stack_pivoted: 0 heap_dep_bypass: 0 length: 8 protection: 64 (PAGE_EXECUTE_READWRITE) base_address: 0x051313ac process_handle: 0xffffffff		3221225550
NtProtectVirtualMemory May 3, 2021, 4:47 p.m.	process_identifier: 3576 stack_dep_bypass: 0 stack_pivoted: 0 heap_dep_bypass: 0 length: 4 protection: 64 (PAGE_EXECUTE_READWRITE) base_address: 0x051313b4 process_handle: 0xffffffff		3221225550
NtProtectVirtualMemory May 3, 2021, 4:47 p.m.	process_identifier: 3576 stack_dep_bypass: 0 stack_pivoted: 0 heap_dep_bypass: 0 length: 8 protection: 64 (PAGE_EXECUTE_READWRITE) base_address: 0x051313b8 process_handle: 0xffffffff		3221225550
NtProtectVirtualMemory May 3, 2021, 4:47 p.m.	process_identifier: 3576 stack_dep_bypass: 0 stack_pivoted: 0 heap_dep_bypass: 0 length: 4 protection: 64 (PAGE_EXECUTE_READWRITE) base_address: 0x051313c0 process_handle: 0xffffffff		3221225550
NtProtectVirtualMemory May 3, 2021, 4:47 p.m.	process_identifier: 3576 stack_dep_bypass: 0 stack_pivoted: 0 heap_dep_bypass: 0 length: 4 protection: 64 (PAGE_EXECUTE_READWRITE) base_address: 0x051313c4 process_handle: 0xffffffff		3221225550
NtProtectVirtualMemory May 3, 2021, 4:47 p.m.	process_identifier: 3576 stack_dep_bypass: 0 stack_pivoted: 0 heap_dep_bypass: 0 length: 4 protection: 64 (PAGE_EXECUTE_READWRITE) base_address: 0x051313c8 process_handle: 0xffffffff		3221225550
NtProtectVirtualMemory May 3, 2021, 4:47 p.m.	process_identifier: 3576 stack_dep_bypass: 0 stack_pivoted: 0 heap_dep_bypass: 0 length: 8 protection: 64 (PAGE_EXECUTE_READWRITE) base_address: 0x051313cc process_handle: 0xffffffff		3221225550
NtProtectVirtualMemory May 3, 2021, 4:47 p.m.	process_identifier: 3576 stack_dep_bypass: 0 stack_pivoted: 0 heap_dep_bypass: 0 length: 4 protection: 64 (PAGE_EXECUTE_READWRITE) base_address: 0x051313d4 process_handle: 0xffffffff		3221225550
NtProtectVirtualMemory May 3, 2021, 4:47 p.m.	process_identifier: 3576 stack_dep_bypass: 0 stack_pivoted: 0 heap_dep_bypass: 0 length: 8 protection: 64 (PAGE_EXECUTE_READWRITE) base_address: 0x051313d8 process_handle: 0xffffffff		3221225550

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

section

{u'size_of_data': u'0x000eb200', u'virtual_address': u'0x00002000', u'entropy': 7.387657929913565, u'name': u'.text', u'virtual_size': u'0x000eb1ec'}

entropy

7.38765792991

description

A section with a high entropy has been found

entropy

0.932111000991

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 May 3, 2021, 4:47 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

Communicates with host for which no DNS query was performed (2 events)

host	172.217.25.14
host	79.134.225.52

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

Time & API	Arguments	Status	Return	Repeated
NtAllocateVirtualMemory May 3, 2021, 4:47 p.m.	process_identifier: 1756 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: 0x000002a0	1	0	0

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

Time & API	Arguments	Status	Return	Repeated
NtQuerySystemInformation May 3, 2021, 4:47 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 5456439 seconds, actually delayed analysis time by 5456439 seconds

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

Time & API	Arguments	Status	Return
WriteProcessMemory May 3, 2021, 4:47 p.m.	buffer: MZÿÿ¸@º´ Í!¸LÍ!This program cannot be run in DOS mode. $PELpè`àXv @ À@LvO@ H.text¤V X `.rsrc@Z@@.reloc `@B base_address: 0x00400000 process_identifier: 1756 process_handle: 0x000002a0	1	1
WriteProcessMemory May 3, 2021, 4:47 p.m.	buffer: 8Ph ¬Pê¬4VS_VERSION_INFO½ïþ?DVarFileInfo$Translation°StringFileInfoè000004b0,FileDescription 0FileVersion0.0.0.0l&InternalNameKKqqehPnPvDgIfQnoPbdNZBWjyROsMOzL.exe(LegalCopyright t&OriginalFilenameKKqqehPnPvDgIfQnoPbdNZBWjyROsMOzL.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: 1756 process_handle: 0x000002a0	1	1
WriteProcessMemory May 3, 2021, 4:47 p.m.	buffer: p 6 base_address: 0x0043a000 process_identifier: 1756 process_handle: 0x000002a0	1	1
WriteProcessMemory May 3, 2021, 4:47 p.m.	buffer: @ base_address: 0x7efde008 process_identifier: 1756 process_handle: 0x000002a0	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 May 3, 2021, 4:47 p.m.	buffer: MZÿÿ¸@º´ Í!¸LÍ!This program cannot be run in DOS mode. $PELpè`àXv @ À@LvO@ H.text¤V X `.rsrc@Z@@.reloc `@B base_address: 0x00400000 process_identifier: 1756 process_handle: 0x000002a0	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 3576 called NtSetContextThread to modify thread in remote process 1756
NtSetContextThread May 3, 2021, 4:47 p.m.	registers.eip: 0 registers.esp: 0 registers.edi: 0 registers.eax: 4421278 registers.ebp: 0 registers.edx: 0 registers.ebx: 2130567168 registers.esi: 0 registers.ecx: 0 thread_handle: 0x0000029c process_identifier: 1756	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 3576 resumed a thread in remote process 1756
NtResumeThread May 3, 2021, 4:47 p.m.	thread_handle: 0x0000029c suspend_count: 1 process_identifier: 1756	1	0	0

File has been identified by 22 AntiVirus engines on VirusTotal as malicious (22 events)

Elastic	malicious (high confidence)
FireEye	Generic.mg.3f1ef1dd98cc11a6
McAfee	Artemis!3F1EF1DD98CC
Alibaba	Trojan:Win32/csharp.ali2000008
Symantec	Scr.Malcode!gdn30
ESET-NOD32	a variant of MSIL/Kryptik.AARY
APEX	Malicious
Avast	Win32:PWSX-gen [Trj]
Cynet	Malicious (score: 100)
Kaspersky	UDS:DangerousObject.Multi.Generic
Paloalto	generic.ml
AegisLab	Trojan.Multi.Generic.4!c
DrWeb	Trojan.PackedNET.624
McAfee-GW-Edition	Artemis!Trojan
Microsoft	Trojan:Script/Wacatac.B!ml
ZoneAlarm	UDS:DangerousObject.Multi.Generic
AhnLab-V3	Malware/Win32.RL_Generic.R357253
BitDefenderTheta	Gen:NN.ZemsilF.34686.@m0@aGYrNZp
Malwarebytes	Malware.AI.4134295424
SentinelOne	Static AI - Malicious PE
Fortinet	MSIL/Kryptik.AARD!tr
AVG	Win32:PWSX-gen [Trj]

Executed a process and injected code into it, probably while unpacking (21 events)

Time & API	Arguments	Status	Return
NtResumeThread May 3, 2021, 4:45 p.m.	thread_handle: 0x000000dc suspend_count: 1 process_identifier: 3576	1	0
NtResumeThread May 3, 2021, 4:45 p.m.	thread_handle: 0x00000154 suspend_count: 1 process_identifier: 3576	1	0
NtResumeThread May 3, 2021, 4:45 p.m.	thread_handle: 0x00000198 suspend_count: 1 process_identifier: 3576	1	0
NtResumeThread May 3, 2021, 4:47 p.m.	thread_handle: 0x00000254 suspend_count: 1 process_identifier: 3576	1	0
CreateProcessInternalW May 3, 2021, 4:47 p.m.	thread_identifier: 6844 thread_handle: 0x0000029c process_identifier: 1756 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: 0x000002a0	1	1
NtGetContextThread May 3, 2021, 4:47 p.m.	thread_handle: 0x0000029c	1	0
NtAllocateVirtualMemory May 3, 2021, 4:47 p.m.	process_identifier: 1756 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: 0x000002a0	1	0
WriteProcessMemory May 3, 2021, 4:47 p.m.	buffer: MZÿÿ¸@º´ Í!¸LÍ!This program cannot be run in DOS mode. $PELpè`àXv @ À@LvO@ H.text¤V X `.rsrc@Z@@.reloc `@B base_address: 0x00400000 process_identifier: 1756 process_handle: 0x000002a0	1	1
WriteProcessMemory May 3, 2021, 4:47 p.m.	buffer: base_address: 0x00402000 process_identifier: 1756 process_handle: 0x000002a0	1	1
WriteProcessMemory May 3, 2021, 4:47 p.m.	buffer: 8Ph ¬Pê¬4VS_VERSION_INFO½ïþ?DVarFileInfo$Translation°StringFileInfoè000004b0,FileDescription 0FileVersion0.0.0.0l&InternalNameKKqqehPnPvDgIfQnoPbdNZBWjyROsMOzL.exe(LegalCopyright t&OriginalFilenameKKqqehPnPvDgIfQnoPbdNZBWjyROsMOzL.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: 1756 process_handle: 0x000002a0	1	1
WriteProcessMemory May 3, 2021, 4:47 p.m.	buffer: p 6 base_address: 0x0043a000 process_identifier: 1756 process_handle: 0x000002a0	1	1
WriteProcessMemory May 3, 2021, 4:47 p.m.	buffer: @ base_address: 0x7efde008 process_identifier: 1756 process_handle: 0x000002a0	1	1
NtSetContextThread May 3, 2021, 4:47 p.m.	registers.eip: 0 registers.esp: 0 registers.edi: 0 registers.eax: 4421278 registers.ebp: 0 registers.edx: 0 registers.ebx: 2130567168 registers.esi: 0 registers.ecx: 0 thread_handle: 0x0000029c process_identifier: 1756	1	0
NtResumeThread May 3, 2021, 4:47 p.m.	thread_handle: 0x0000029c suspend_count: 1 process_identifier: 1756	1	0
NtResumeThread May 3, 2021, 4:47 p.m.	thread_handle: 0x000000dc suspend_count: 1 process_identifier: 1756	1	0
NtResumeThread May 3, 2021, 4:47 p.m.	thread_handle: 0x00000150 suspend_count: 1 process_identifier: 1756	1	0
NtResumeThread May 3, 2021, 4:47 p.m.	thread_handle: 0x00000188 suspend_count: 1 process_identifier: 1756	1	0
NtResumeThread May 3, 2021, 4:47 p.m.	thread_handle: 0x00000314 suspend_count: 1 process_identifier: 1756	1	0
NtResumeThread May 3, 2021, 4:47 p.m.	thread_handle: 0x00000334 suspend_count: 1 process_identifier: 1756	1	0
NtResumeThread May 3, 2021, 4:47 p.m.	thread_handle: 0x00000398 suspend_count: 1 process_identifier: 1756	1	0
NtResumeThread May 3, 2021, 4:47 p.m.	thread_handle: 0x00000410 suspend_count: 1 process_identifier: 1756	1	0

vbc.exe

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