Summary | ZeroBOX

Category	Machine	Started	Completed
FILE	s1_win7_x6401	March 22, 2023, 10:05 a.m.	March 22, 2023, 10:17 a.m.

Size	744.0KB
Type	PE32 executable (GUI) Intel 80386 Mono/.Net assembly, for MS Windows
MD5	`f99d5a071e38ed4add47c1d47f657422`
SHA256	`9f7e4c0f47ffa44b03cc568541e5b1c5e2a1a2cbf8d30585129f11a5253ca20d`
CRC32	`1791B02A`
ssdeep	`12288:gifU3XkzmeoZcEws6AVBYltazIYTX/5J3JFsjx+MNo91XIkrqQqtxPHEoqBChsMe:gOLzD6cEwHAValtazXb5FJCFjeyk1qtO`
PDB Path	Vsm.pdb
Yara	Win32_Trojan_PWS_Net_1_Zero - Win32 Trojan PWS .NET Azorult Is_DotNET_EXE - (no description) IsPE32 - (no description) PE_Header_Zero - PE File Signature

vbc.exe "C:\Users\test22\AppData\Local\Temp\vbc.exe"
2564

Name	Response	Post-Analysis Lookup
No hosts contacted.

IP Address	Status	Action
No hosts contacted.

Suricata Alerts

No Suricata Alerts

Suricata TLS

No Suricata TLS

Checks if process is being debugged by a debugger (2 events)

Time & API	Arguments	Status	Return	Repeated
IsDebuggerPresent March 22, 2023, 10:05 a.m.			0	0
IsDebuggerPresent March 22, 2023, 10:05 a.m.			0	0

This executable has a PDB path (1 event)

pdb_path

Vsm.pdb

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 March 22, 2023, 10:05 a.m.		1	1	0

One or more processes crashed (1 event)

Time & API	Arguments	Status	Return	Repeated
__exception__ March 22, 2023, 10:05 a.m.	stacktrace: CopyPDBs+0x1b552 DllCanUnloadNowInternal-0x25a85 clr+0x1b1194 @ 0x72951194 LogHelp_TerminateOnAssert+0x14061 GetPrivateContextsPerfCounters-0x53e1 clr+0x82ba1 @ 0x72822ba1 mscorlib+0x2f45b0 @ 0x71ad45b0 mscorlib+0x2f46fc @ 0x71ad46fc mscorlib+0x2f4688 @ 0x71ad4688 0x24033d7 0xb17a13 0xb10225 0xb101a0 DllUnregisterServerInternal-0x7aa2 clr+0x2652 @ 0x727a2652 DllRegisterServerInternal+0x243 CoUninitializeEE-0xd1f5 clr+0x1264f @ 0x727b264f DllRegisterServerInternal+0xa89 CoUninitializeEE-0xc9af clr+0x12e95 @ 0x727b2e95 DllGetClassObjectInternal+0x2473 CorDllMainForThunk-0x8a088 clr+0xc74ec @ 0x728674ec DllGetClassObjectInternal+0x2597 CorDllMainForThunk-0x89f64 clr+0xc7610 @ 0x72867610 CorDllMainForThunk+0x850 _CorExeMain-0x238a clr+0x151dc4 @ 0x728f1dc4 CorDllMainForThunk+0x8f3 _CorExeMain-0x22e7 clr+0x151e67 @ 0x728f1e67 CorDllMainForThunk+0xa06 _CorExeMain-0x21d4 clr+0x151f7a @ 0x728f1f7a _CorExeMain+0x1c ClrCreateManagedInstance-0x35cd clr+0x15416a @ 0x728f416a _CorExeMain+0x71 GetFileVersion-0x293a mscoreei+0xf5a3 @ 0x7415f5a3 CreateConfigStream+0x13f GetProcessExecutableHeap-0xad6 mscoree+0x7f16 @ 0x741d7f16 _CorExeMain+0x8 CreateConfigStream-0x2ff4 mscoree+0x4de3 @ 0x741d4de3 RtlInitializeExceptionChain+0x63 RtlAllocateActivationContextStack-0xa1 ntdll+0x39ed2 @ 0x76f49ed2 RtlInitializeExceptionChain+0x36 RtlAllocateActivationContextStack-0xce ntdll+0x39ea5 @ 0x76f49ea5 exception.instruction_r: c9 c2 10 00 cc cc cc cc cc 8b ff 55 8b ec 56 8b exception.symbol: RaiseException+0x58 CloseHandle-0x9 kernelbase+0xb727 exception.instruction: leave exception.module: KERNELBASE.dll exception.exception_code: 0xe0434f4e exception.offset: 46887 exception.address: 0x7597b727 registers.esp: 3921996 registers.edi: 0 registers.eax: 3921996 registers.ebp: 3922076 registers.edx: 0 registers.ebx: 5109376 registers.esi: 5064032 registers.ecx: 2020491327	1	0	0

Time & API

Arguments

Status

Return

Repeated

__exception__

March 22, 2023, 10:05 a.m.

stacktrace:

CopyPDBs+0x1b552 DllCanUnloadNowInternal-0x25a85 clr+0x1b1194 @ 0x72951194
LogHelp_TerminateOnAssert+0x14061 GetPrivateContextsPerfCounters-0x53e1 clr+0x82ba1 @ 0x72822ba1
mscorlib+0x2f45b0 @ 0x71ad45b0
mscorlib+0x2f46fc @ 0x71ad46fc
mscorlib+0x2f4688 @ 0x71ad4688
0x24033d7
0xb17a13
0xb10225
0xb101a0
DllUnregisterServerInternal-0x7aa2 clr+0x2652 @ 0x727a2652
DllRegisterServerInternal+0x243 CoUninitializeEE-0xd1f5 clr+0x1264f @ 0x727b264f
DllRegisterServerInternal+0xa89 CoUninitializeEE-0xc9af clr+0x12e95 @ 0x727b2e95
DllGetClassObjectInternal+0x2473 CorDllMainForThunk-0x8a088 clr+0xc74ec @ 0x728674ec
DllGetClassObjectInternal+0x2597 CorDllMainForThunk-0x89f64 clr+0xc7610 @ 0x72867610
CorDllMainForThunk+0x850 _CorExeMain-0x238a clr+0x151dc4 @ 0x728f1dc4
CorDllMainForThunk+0x8f3 _CorExeMain-0x22e7 clr+0x151e67 @ 0x728f1e67
CorDllMainForThunk+0xa06 _CorExeMain-0x21d4 clr+0x151f7a @ 0x728f1f7a
_CorExeMain+0x1c ClrCreateManagedInstance-0x35cd clr+0x15416a @ 0x728f416a
_CorExeMain+0x71 GetFileVersion-0x293a mscoreei+0xf5a3 @ 0x7415f5a3
CreateConfigStream+0x13f GetProcessExecutableHeap-0xad6 mscoree+0x7f16 @ 0x741d7f16
_CorExeMain+0x8 CreateConfigStream-0x2ff4 mscoree+0x4de3 @ 0x741d4de3
RtlInitializeExceptionChain+0x63 RtlAllocateActivationContextStack-0xa1 ntdll+0x39ed2 @ 0x76f49ed2
RtlInitializeExceptionChain+0x36 RtlAllocateActivationContextStack-0xce ntdll+0x39ea5 @ 0x76f49ea5

exception.instruction_r: c9 c2 10 00 cc cc cc cc cc 8b ff 55 8b ec 56 8b
exception.symbol: RaiseException+0x58 CloseHandle-0x9 kernelbase+0xb727
exception.instruction: leave
exception.module: KERNELBASE.dll
exception.exception_code: 0xe0434f4e
exception.offset: 46887
exception.address: 0x7597b727
registers.esp: 3921996
registers.edi: 0
registers.eax: 3921996
registers.ebp: 3922076
registers.edx: 0
registers.ebx: 5109376
registers.esi: 5064032
registers.ecx: 2020491327

Allocates read-write-execute memory (usually to unpack itself) (21 events)

Time & API	Arguments	Status
NtAllocateVirtualMemory March 22, 2023, 10:05 a.m.	process_identifier: 2564 region_size: 2097152 stack_dep_bypass: 0 stack_pivoted: 0 heap_dep_bypass: 0 protection: 64 (PAGE_EXECUTE_READWRITE) base_address: 0x00780000 allocation_type: 8192 (MEM_RESERVE) process_handle: 0xffffffff	1
NtAllocateVirtualMemory March 22, 2023, 10:05 a.m.	process_identifier: 2564 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
NtProtectVirtualMemory March 22, 2023, 10:05 a.m.	process_identifier: 2564 stack_dep_bypass: 0 stack_pivoted: 0 heap_dep_bypass: 0 length: 4096 protection: 64 (PAGE_EXECUTE_READWRITE) base_address: 0x727a1000 process_handle: 0xffffffff	1
NtProtectVirtualMemory March 22, 2023, 10:05 a.m.	process_identifier: 2564 stack_dep_bypass: 0 stack_pivoted: 0 heap_dep_bypass: 0 length: 4096 protection: 64 (PAGE_EXECUTE_READWRITE) base_address: 0x727a2000 process_handle: 0xffffffff	1
NtAllocateVirtualMemory March 22, 2023, 10:05 a.m.	process_identifier: 2564 region_size: 1048576 stack_dep_bypass: 0 stack_pivoted: 0 heap_dep_bypass: 0 protection: 64 (PAGE_EXECUTE_READWRITE) base_address: 0x00b10000 allocation_type: 8192 (MEM_RESERVE) process_handle: 0xffffffff	1
NtAllocateVirtualMemory March 22, 2023, 10:05 a.m.	process_identifier: 2564 region_size: 4096 stack_dep_bypass: 0 stack_pivoted: 0 heap_dep_bypass: 1 protection: 64 (PAGE_EXECUTE_READWRITE) base_address: 0x00bd0000 allocation_type: 4096 (MEM_COMMIT) process_handle: 0xffffffff	1
NtAllocateVirtualMemory March 22, 2023, 10:05 a.m.	process_identifier: 2564 region_size: 4096 stack_dep_bypass: 0 stack_pivoted: 0 heap_dep_bypass: 1 protection: 64 (PAGE_EXECUTE_READWRITE) base_address: 0x00422000 allocation_type: 4096 (MEM_COMMIT) process_handle: 0xffffffff	1
NtAllocateVirtualMemory March 22, 2023, 10:05 a.m.	process_identifier: 2564 region_size: 4096 stack_dep_bypass: 0 stack_pivoted: 0 heap_dep_bypass: 1 protection: 64 (PAGE_EXECUTE_READWRITE) base_address: 0x00455000 allocation_type: 4096 (MEM_COMMIT) process_handle: 0xffffffff	1
NtAllocateVirtualMemory March 22, 2023, 10:05 a.m.	process_identifier: 2564 region_size: 4096 stack_dep_bypass: 0 stack_pivoted: 0 heap_dep_bypass: 1 protection: 64 (PAGE_EXECUTE_READWRITE) base_address: 0x0045b000 allocation_type: 4096 (MEM_COMMIT) process_handle: 0xffffffff	1
NtAllocateVirtualMemory March 22, 2023, 10:05 a.m.	process_identifier: 2564 region_size: 4096 stack_dep_bypass: 0 stack_pivoted: 0 heap_dep_bypass: 1 protection: 64 (PAGE_EXECUTE_READWRITE) base_address: 0x00457000 allocation_type: 4096 (MEM_COMMIT) process_handle: 0xffffffff	1
NtAllocateVirtualMemory March 22, 2023, 10:05 a.m.	process_identifier: 2564 region_size: 4096 stack_dep_bypass: 0 stack_pivoted: 0 heap_dep_bypass: 1 protection: 64 (PAGE_EXECUTE_READWRITE) base_address: 0x0043c000 allocation_type: 4096 (MEM_COMMIT) process_handle: 0xffffffff	1
NtAllocateVirtualMemory March 22, 2023, 10:05 a.m.	process_identifier: 2564 region_size: 4096 stack_dep_bypass: 0 stack_pivoted: 0 heap_dep_bypass: 1 protection: 64 (PAGE_EXECUTE_READWRITE) base_address: 0x00b10000 allocation_type: 4096 (MEM_COMMIT) process_handle: 0xffffffff	1
NtAllocateVirtualMemory March 22, 2023, 10:05 a.m.	process_identifier: 2564 region_size: 4096 stack_dep_bypass: 0 stack_pivoted: 0 heap_dep_bypass: 1 protection: 64 (PAGE_EXECUTE_READWRITE) base_address: 0x0042a000 allocation_type: 4096 (MEM_COMMIT) process_handle: 0xffffffff	1
NtAllocateVirtualMemory March 22, 2023, 10:05 a.m.	process_identifier: 2564 region_size: 4096 stack_dep_bypass: 0 stack_pivoted: 0 heap_dep_bypass: 1 protection: 64 (PAGE_EXECUTE_READWRITE) base_address: 0x0044a000 allocation_type: 4096 (MEM_COMMIT) process_handle: 0xffffffff	1
NtAllocateVirtualMemory March 22, 2023, 10:05 a.m.	process_identifier: 2564 region_size: 4096 stack_dep_bypass: 0 stack_pivoted: 0 heap_dep_bypass: 1 protection: 64 (PAGE_EXECUTE_READWRITE) base_address: 0x00447000 allocation_type: 4096 (MEM_COMMIT) process_handle: 0xffffffff	1
NtAllocateVirtualMemory March 22, 2023, 10:05 a.m.	process_identifier: 2564 region_size: 4096 stack_dep_bypass: 0 stack_pivoted: 0 heap_dep_bypass: 1 protection: 64 (PAGE_EXECUTE_READWRITE) base_address: 0x0043a000 allocation_type: 4096 (MEM_COMMIT) process_handle: 0xffffffff	1
NtAllocateVirtualMemory March 22, 2023, 10:05 a.m.	process_identifier: 2564 region_size: 53248 stack_dep_bypass: 0 stack_pivoted: 0 heap_dep_bypass: 1 protection: 64 (PAGE_EXECUTE_READWRITE) base_address: 0x00b11000 allocation_type: 4096 (MEM_COMMIT) process_handle: 0xffffffff	1
NtProtectVirtualMemory March 22, 2023, 10:05 a.m.	process_identifier: 2564 stack_dep_bypass: 0 stack_pivoted: 0 heap_dep_bypass: 0 length: 4096 protection: 64 (PAGE_EXECUTE_READWRITE) base_address: 0x732e2000 process_handle: 0xffffffff	1
NtAllocateVirtualMemory March 22, 2023, 10:05 a.m.	process_identifier: 2564 region_size: 4096 stack_dep_bypass: 0 stack_pivoted: 0 heap_dep_bypass: 1 protection: 64 (PAGE_EXECUTE_READWRITE) base_address: 0x00446000 allocation_type: 4096 (MEM_COMMIT) process_handle: 0xffffffff	1
NtAllocateVirtualMemory March 22, 2023, 10:05 a.m.	process_identifier: 2564 region_size: 4096 stack_dep_bypass: 0 stack_pivoted: 0 heap_dep_bypass: 1 protection: 64 (PAGE_EXECUTE_READWRITE) base_address: 0x02400000 allocation_type: 4096 (MEM_COMMIT) process_handle: 0xffffffff	1
NtAllocateVirtualMemory March 22, 2023, 10:05 a.m.	process_identifier: 2564 region_size: 12288 stack_dep_bypass: 0 stack_pivoted: 0 heap_dep_bypass: 1 protection: 64 (PAGE_EXECUTE_READWRITE) base_address: 0x02401000 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'0x000b9600', u'virtual_address': u'0x00002000', u'entropy': 7.832270479231899, u'name': u'.text', u'virtual_size': u'0x000b9544'}

entropy

7.83227047923

description

A section with a high entropy has been found

entropy

0.997310020175

description

Overall entropy of this PE file is high

File has been identified by 34 AntiVirus engines on VirusTotal as malicious (34 events)

Bkav	W32.AIDetectNet.01
Lionic	Trojan.Win32.Generic.4!c
Elastic	malicious (high confidence)
Cynet	Malicious (score: 100)
McAfee	Artemis!F99D5A071E38
Sangfor	Suspicious.Win32.Save.a
CrowdStrike	win/malicious_confidence_100% (W)
BitDefender	Trojan.GenericKD.66042243
VirIT	Trojan.Win32.MSIL_Heur.A
Cyren	W32/MSIL_Kryptik.GVV.gen!Eldorado
Symantec	ML.Attribute.HighConfidence
ESET-NOD32	a variant of MSIL/Kryptik.AIJW
APEX	Malicious
Paloalto	generic.ml
ClamAV	Win.Trojan.NanoCore-9993885-0
Kaspersky	HEUR:Backdoor.MSIL.Androm.gen
MicroWorld-eScan	Trojan.GenericKD.66042243
Avast	Win32:PWSX-gen [Trj]
Rising	Malware.Obfus/MSIL@AI.100 (RDM.MSIL2:aYEB4OXifSBCEp1KgwZAHg)
Sophos	Generic ML PUA (PUA)
DrWeb	Trojan.PackedNET.1427
McAfee-GW-Edition	BehavesLike.Win32.Generic.bc
FireEye	Generic.mg.f99d5a071e38ed4a
GData	MSIL.Trojan-Spy.Snake.KS1MB5
MAX	malware (ai score=85)
Microsoft	Trojan:Win32/Casdet!rfn
Google	Detected
Acronis	suspicious
BitDefenderTheta	Gen:NN.ZemsilF.36344.Um0@aqXsmUp
TrendMicro-HouseCall	TROJ_GEN.R002H0CCL23
SentinelOne	Static AI - Malicious PE
MaxSecure	Trojan.Malware.300983.susgen
Fortinet	MSIL/Kryptik.AML!tr
AVG	Win32:PWSX-gen [Trj]

vbc.exe

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