blankgrabber | Retrac_Woof[.]exe

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General

Target

Retrac_Woof.exe
Size

6.8MB
MD5

a6625f9de8246d58525fa930f4120b15
SHA1

8b4962eefb97dc570b7002f9b653f1be4459c131
SHA256

85cd306cb49e43f935644b3320218bc7efadbe15475ac31206dd7d9d3b64d77d
SHA512

6d90c891301edab8a761da61bec15e5de6398671f6f0de25322eeda87553153ca06e4275a244ebf082dbe0f2edc6a55f333130ff269cc5f0803995a2056ccd2c
SSDEEP

98304:UCgzdbM+Q2y+aq0djOjFgFQlwq4Mjk+dBZtu9xTtwz/aer6/BbiEJ1nL2hBnLnCg:V2f0xOjmFQR4MVGFtwLPsnL2hV

Score

10^/10

blankgrabber

Malware Config

Signatures

A stealer written in Python and packaged with Pyinstaller 1 IoCs

resource	yara_rule
static1/unpack001/�w��n�.pyc	blankgrabber

Blankgrabber family
blankgrabber

Files

Retrac_Woof.exe
.exe windows:6 windows x64 arch:x64

ba2fe82dbe3fc8bdddc26ef88c3ef15a

Code Sign

33:00:00:04:6f:5a:72:76:81:13:5a:26:6c:00:00:00:00:04:6f
Certificate

Issuer

CN=Microsoft Windows Production PCA 2011,O=Microsoft Corporation,L=Redmond,ST=Washington,C=US

Not Before

08/02/2024, 19:22

Not After

07/02/2025, 19:22

Subject

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

Extended Key Usages

ExtKeyUsageCodeSigning

61:07:76:56:00:00:00:00:00:08
Certificate

Issuer

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

Not Before

19/10/2011, 18:41

Not After

19/10/2026, 18:51

Subject

CN=Microsoft Windows Production PCA 2011,O=Microsoft Corporation,L=Redmond,ST=Washington,C=US

Key Usages

KeyUsageDigitalSignature
KeyUsageCertSign
KeyUsageCRLSign

24:25:8c:21:24:96:97:85:b0:8f:7c:5d:6b:5c:02:a8:75:03:4b:76:8c:60:b1:47:7d:9e:77:0a:b4:47:5d:9b
Signer

Actual PE Digest

24:25:8c:21:24:96:97:85:b0:8f:7c:5d:6b:5c:02:a8:75:03:4b:76:8c:60:b1:47:7d:9e:77:0a:b4:47:5d:9b

Digest Algorithm

sha256

PE Digest Matches

false

Headers

DLL Characteristics

IMAGE_DLLCHARACTERISTICS_HIGH_ENTROPY_VA
IMAGE_DLLCHARACTERISTICS_DYNAMIC_BASE
IMAGE_DLLCHARACTERISTICS_NX_COMPAT
IMAGE_DLLCHARACTERISTICS_GUARD_CF
IMAGE_DLLCHARACTERISTICS_TERMINAL_SERVER_AWARE

File Characteristics

IMAGE_FILE_EXECUTABLE_IMAGE
IMAGE_FILE_LARGE_ADDRESS_AWARE

Imports

user32

GetWindowThreadProcessId
ShowWindow

kernel32

GetModuleFileNameW
SetDllDirectoryW
CreateSymbolicLinkW
GetProcAddress
CreateDirectoryW
GetCommandLineW
GetEnvironmentVariableW
ExpandEnvironmentStringsW
DeleteFileW
FindClose
FindFirstFileW
FindNextFileW
GetDriveTypeW
RemoveDirectoryW
GetTempPathW
CloseHandle
WaitForSingleObject
FormatMessageW
GetCurrentProcess
GetCurrentProcessId
GetExitCodeProcess
CreateProcessW
GetStartupInfoW
FreeLibrary
LoadLibraryExW
LocalFree
SetConsoleCtrlHandler
GetConsoleWindow
K32EnumProcessModules
K32GetModuleFileNameExW
CreateFileW
FindFirstFileExW
GetFinalPathNameByHandleW
MultiByteToWideChar
WideCharToMultiByte
HeapReAlloc
GetLastError
WriteConsoleW
SetEndOfFile
Sleep
EnterCriticalSection
RtlCaptureContext
RtlLookupFunctionEntry
RtlVirtualUnwind
UnhandledExceptionFilter
SetUnhandledExceptionFilter
TerminateProcess
IsProcessorFeaturePresent
QueryPerformanceCounter
GetCurrentThreadId
GetSystemTimeAsFileTime
InitializeSListHead
IsDebuggerPresent
GetModuleHandleW
RtlUnwindEx
SetLastError
LeaveCriticalSection
DeleteCriticalSection
InitializeCriticalSectionAndSpinCount
TlsAlloc
TlsGetValue
TlsSetValue
TlsFree
EncodePointer
RaiseException
RtlPcToFileHeader
GetFileInformationByHandle
GetFileType
PeekNamedPipe
SystemTimeToTzSpecificLocalTime
FileTimeToSystemTime
ReadFile
GetFullPathNameW
SetStdHandle
GetStdHandle
WriteFile
ExitProcess
GetModuleHandleExW
GetCommandLineA
HeapFree
GetConsoleMode
ReadConsoleW
SetFilePointerEx
GetConsoleOutputCP
GetFileSizeEx
HeapAlloc
FlsAlloc
FlsGetValue
FlsSetValue
FlsFree
CompareStringW
LCMapStringW
GetCurrentDirectoryW
FlushFileBuffers
SetEnvironmentVariableW
GetFileAttributesExW
GetStringTypeW
IsValidCodePage
GetACP
GetOEMCP
GetCPInfo
GetEnvironmentStringsW
FreeEnvironmentStringsW
GetProcessHeap
GetTimeZoneInformation
HeapSize

advapi32

ConvertSidToStringSidW
GetTokenInformation
OpenProcessToken
ConvertStringSecurityDescriptorToSecurityDescriptorW

Sections

.text
Size: 169KB - Virtual size: 168KB

IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ

.rdata
Size: 73KB - Virtual size: 72KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.data
Size: 3KB - Virtual size: 28KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

.pdata
Size: 9KB - Virtual size: 8KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.rsrc
Size: 2KB - Virtual size: 2KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.reloc
Size: 2KB - Virtual size: 1KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ
�w��n�.pyc

Sharing

General

Malware Config

Signatures

Files

ba2fe82dbe3fc8bdddc26ef88c3ef15a

Code Sign

33:00:00:04:6f:5a:72:76:81:13:5a:26:6c:00:00:00:00:04:6fCertificate

Extended Key Usages

61:07:76:56:00:00:00:00:00:08Certificate

Key Usages

24:25:8c:21:24:96:97:85:b0:8f:7c:5d:6b:5c:02:a8:75:03:4b:76:8c:60:b1:47:7d:9e:77:0a:b4:47:5d:9bSigner

Headers

DLL Characteristics

File Characteristics

Imports

user32

kernel32

advapi32

Sections

.text Size: 169KB - Virtual size: 168KB

.rdata Size: 73KB - Virtual size: 72KB

.data Size: 3KB - Virtual size: 28KB

.pdata Size: 9KB - Virtual size: 8KB

.rsrc Size: 2KB - Virtual size: 2KB

.reloc Size: 2KB - Virtual size: 1KB

33:00:00:04:6f:5a:72:76:81:13:5a:26:6c:00:00:00:00:04:6f
Certificate

61:07:76:56:00:00:00:00:00:08
Certificate

24:25:8c:21:24:96:97:85:b0:8f:7c:5d:6b:5c:02:a8:75:03:4b:76:8c:60:b1:47:7d:9e:77:0a:b4:47:5d:9b
Signer

.text
Size: 169KB - Virtual size: 168KB

.rdata
Size: 73KB - Virtual size: 72KB

.data
Size: 3KB - Virtual size: 28KB

.pdata
Size: 9KB - Virtual size: 8KB

.rsrc
Size: 2KB - Virtual size: 2KB

.reloc
Size: 2KB - Virtual size: 1KB