vrfauto[.]dll | Triage

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General

Target

vrfauto.dll
Size

159KB
MD5

91e59bcd286b7d52697e7816fe78763c
SHA1

6f2b517c9e1e66ced1572e9ca92bf2deb92d5d34
SHA256

a8fe0cb813d7ae8339ece09fb758a6a3f2c8e1cfa0f0eee806a9435ec928182a
SHA512

1089c1c15d80c6799133df057e7bdf23877f93b2ff94efb6b88d0b60987e308a59741fce177e85132551d9b73e0541e42e8f74a4f2d219b62221a340fa380ddd
SSDEEP

3072:39+rVRsNsh4WCzzc+KRTHM+HJqGrfw4yLNAU/7we:t4VRsdcVRTHzqGrH4J/7V

Score

1^/10

Malware Config

Signatures

Files

vrfauto.dll
.dll regsvr32 windows:10 windows x86 arch:x86

6162d5c7fe35456e5fa685e229e3a347

Code Sign

33:00:00:04:fe:59:ca:b7:e6:2a:a5:22:c1:00:00:00:00:04:fe
Certificate

Issuer

CN=Microsoft Code Signing PCA 2010,O=Microsoft Corporation,L=Redmond,ST=Washington,C=US

Not Before

16-02-2023 20:11

Not After

31-01-2024 20:11

Subject

CN=Microsoft Corporation,O=Microsoft Corporation,L=Redmond,ST=Washington,C=US

Extended Key Usages

ExtKeyUsageCodeSigning

61:0c:52:4c:00:00:00:00:00:03
Certificate

Issuer

CN=Microsoft Root Certificate Authority 2010,O=Microsoft Corporation,L=Redmond,ST=Washington,C=US

Not Before

06-07-2010 20:40

Not After

06-07-2025 20:50

Subject

CN=Microsoft Code Signing PCA 2010,O=Microsoft Corporation,L=Redmond,ST=Washington,C=US

Key Usages

KeyUsageDigitalSignature
KeyUsageCertSign
KeyUsageCRLSign

af:f2:3c:0b:c8:cc:18:af:50:ed:ff:c7:d4:9a:fd:01:33:a7:b7:eb:a4:b4:f7:1c:a6:e7:3e:f5:13:06:d6:61
Signer

Actual PE Digest

af:f2:3c:0b:c8:cc:18:af:50:ed:ff:c7:d4:9a:fd:01:33:a7:b7:eb:a4:b4:f7:1c:a6:e7:3e:f5:13:06:d6:61

Digest Algorithm

sha256

PE Digest Matches

true

Headers

DLL Characteristics

IMAGE_DLLCHARACTERISTICS_DYNAMIC_BASE
IMAGE_DLLCHARACTERISTICS_NX_COMPAT
IMAGE_DLLCHARACTERISTICS_GUARD_CF

File Characteristics

IMAGE_FILE_EXECUTABLE_IMAGE
IMAGE_FILE_32BIT_MACHINE
IMAGE_FILE_DLL

PDB Paths

vrfauto.pdb

Imports

msvcrt

_CxxThrowException
?what@exception@@UBEPBDXZ
??1exception@@UAE@XZ
??0exception@@QAE@ABV0@@Z
??0exception@@QAE@ABQBDH@Z
??0exception@@QAE@ABQBD@Z
_XcptFilter
_callnewh
_vsnwprintf
wcstoul
_wcsicmp
memcmp
??1type_info@@UAE@XZ
??3@YAXPAX@Z
calloc
_amsg_exit
_onexit
memmove
_initterm
_except_handler4_common
?terminate@@YAXXZ
_lock
_unlock
realloc
__dllonexit
_errno
malloc
memmove_s
_purecall
memcpy_s
wcsncpy_s
free
wcscat_s
_vsnprintf
printf
wcscpy_s
??_V@YAXPAX@Z
__CxxFrameHandler3
memcpy
memset

kernel32

GetCurrentThreadId
GetCurrentProcessId
QueryPerformanceCounter
SleepConditionVariableSRW
WakeAllConditionVariable
AcquireSRWLockExclusive
ReleaseSRWLockExclusive
TerminateProcess
GetCurrentProcess
SetUnhandledExceptionFilter
UnhandledExceptionFilter
Sleep
WideCharToMultiByte
HeapDestroy
GetProcessHeap
HeapAlloc
HeapFree
GetTickCount
EnterCriticalSection
HeapReAlloc
GetModuleFileNameW
HeapSize
GetSystemDirectoryW
GetThreadLocale
OutputDebugStringA
LeaveCriticalSection
GetSystemTimeAsFileTime
InitializeCriticalSection
InitializeCriticalSectionEx
MapViewOfFile
CreateFileMappingW
FileTimeToLocalFileTime
DeleteFileW
GetLastError
CloseHandle
DisableThreadLibraryCalls
FindClose
RaiseException
FindNextFileW
UnmapViewOfFile
GetProcAddress
DeleteCriticalSection
GetModuleHandleW
FileTimeToSystemTime
GetFileSizeEx
lstrcmpiW
LoadLibraryExW
FreeLibrary
SizeofResource
LoadResource
FindResourceExW
WriteFile
LockResource
CreateFileW
MultiByteToWideChar
SetThreadLocale
FindFirstFileW

ole32

StringFromGUID2
CoTaskMemFree
CoCreateFreeThreadedMarshaler
CoTaskMemAlloc
CoCreateInstance
CoTaskMemRealloc

oleaut32

VarUI4FromStr
UnRegisterTypeLi
LoadTypeLi
SysFreeString
RegisterTypeLi
SysAllocStringByteLen
SafeArrayCreate
SysStringByteLen
VariantInit
VariantClear
VariantChangeType
SafeArrayAccessData
SysAllocStringLen
LoadRegTypeLi
SafeArrayUnaccessData
VariantCopy
SafeArrayGetVartype
SafeArrayCopy
SafeArrayDestroy
SysAllocString
SysStringLen

advapi32

RegEnumKeyExW
RegCreateKeyExW
RegDeleteValueW
RegCloseKey
RegQueryInfoKeyW
TraceMessage
GetTraceLoggerHandle
GetTraceEnableFlags
GetTraceEnableLevel
RegisterTraceGuidsW
UnregisterTraceGuids
RegOpenKeyExW
RegSetValueExW

user32

CharNextW
UnregisterClassA

version

VerQueryValueW
GetFileVersionInfoW
GetFileVersionInfoSizeW

ntdll

RtlInitUnicodeString
NtQueryValueKey
RtlFreeHeap
RtlAllocateHeap

vrfcore

VerifierSetLayerProperty
VerifierQueryLayerProperty
VerifierIsLayerEnabled
VerifierQueryLayerBreak
VerifierEnableLayer
VerifierCloseLayerProperties
VerifierDisableVerifier
VerifierOpenLayerProperties
VerifierGetLoggingDirectory
VerifierCreateLayerProperties
VerifierQueryRegisteredLayers
VerifierSetLayerBreak
VerifierDisableLayer

dbghelp

SymGetLineFromAddr64
SymUnloadModule64
SymGetModuleInfo64
SymSetOptions
SymLoadModule64
SymRegisterCallback64
SymCleanup
SymGetSymFromAddr64
SymInitialize

Exports

Exports

DllCanUnloadNow
DllGetClassObject
DllRegisterServer
DllUnregisterServer

Sections

.text
Size: 114KB - Virtual size: 114KB

IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ

.data
Size: 2KB - Virtual size: 3KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

.idata
Size: 4KB - Virtual size: 4KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.rsrc
Size: 18KB - Virtual size: 17KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.reloc
Size: 8KB - Virtual size: 7KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ

Sharing

General

Malware Config

Signatures

Files

6162d5c7fe35456e5fa685e229e3a347

Code Sign

33:00:00:04:fe:59:ca:b7:e6:2a:a5:22:c1:00:00:00:00:04:feCertificate

Extended Key Usages

61:0c:52:4c:00:00:00:00:00:03Certificate

Key Usages

af:f2:3c:0b:c8:cc:18:af:50:ed:ff:c7:d4:9a:fd:01:33:a7:b7:eb:a4:b4:f7:1c:a6:e7:3e:f5:13:06:d6:61Signer

Headers

DLL Characteristics

File Characteristics

PDB Paths

Imports

msvcrt

kernel32

ole32

oleaut32

advapi32

user32

version

ntdll

vrfcore

dbghelp

Exports

Exports

Sections

.text Size: 114KB - Virtual size: 114KB

.data Size: 2KB - Virtual size: 3KB

.idata Size: 4KB - Virtual size: 4KB

.rsrc Size: 18KB - Virtual size: 17KB

.reloc Size: 8KB - Virtual size: 7KB

33:00:00:04:fe:59:ca:b7:e6:2a:a5:22:c1:00:00:00:00:04:fe
Certificate

61:0c:52:4c:00:00:00:00:00:03
Certificate

af:f2:3c:0b:c8:cc:18:af:50:ed:ff:c7:d4:9a:fd:01:33:a7:b7:eb:a4:b4:f7:1c:a6:e7:3e:f5:13:06:d6:61
Signer

.text
Size: 114KB - Virtual size: 114KB

.data
Size: 2KB - Virtual size: 3KB

.idata
Size: 4KB - Virtual size: 4KB

.rsrc
Size: 18KB - Virtual size: 17KB

.reloc
Size: 8KB - Virtual size: 7KB