muck_stealer | 52e7ef3963a9ba8075a9142b5016da513fc3c0d35b684a3a29d4a6cce2fdb8f4[.]bin

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General

Target
52e7ef3963a9ba8075a9142b5016da513fc3c0d35b684a3a29d4a6cce2fdb8f4.bin
Size 17.4MB
Sample251121-mgrt5ayjfl
SHA256 52e7ef3963a9ba8075a9142b5016da513fc3c0d35b684a3a29d4a6cce2fdb8f4
MD5 93ca77d876d9e44c8e0529edf1170ac2
SHA1 e28997969a0dd9cff4d8185abe05bcc2f1d552cd
SHA512 4aeb2ec34133df39d93183ef468d036d3b3692f8b4a2514e26223010b69cf503fc6bade5b7808f3b480cdf41948b996d2ea9f274f36ded770ec7bec4b1e4f611
SSDEEP 393216:VqGzFuSfdjcMo173sB1rnpDs1FIu7msaHHJyZ:VqmFTdjcMo14B1FD46jsSJQ
MD5 SHA1 SHA512 SSDEEP

Score

10^/10

pyinstaller muck_stealer

Malware Config

Signatures

Detects MuckStealer .pyc payload 1 IoCs

resource	yara_rule
static1/unpack001/esv.pyc	family_muckstealer

Muck_stealer family
muck_stealer

Detects Pyinstaller 1 IoCs

pyinstaller

resource	yara_rule
sample	pyinstaller

Unsigned PE 1 IoCs

Checks for missing Authenticode signature.

resource
52e7ef3963a9ba8075a9142b5016da513fc3c0d35b684a3a29d4a6cce2fdb8f4.bin

File Explorer

52e7ef3963a9ba8075a9142b5016da513fc3c0d35b684a3a29d4a6cce2fdb8f4.bin

.exe 17.4MB
esv.pyc

85KB

52e7ef3963a9ba8075a9142b5016da513fc3c0d35b684a3a29d4a6cce2fdb8f4.bin

IMPHASH dcaf48c1f10b0efa0a4472200f3850ed
SHA256 52e7ef3963a9ba8075a9142b5016da513fc3c0d35b684a3a29d4a6cce2fdb8f4
MD5 93ca77d876d9e44c8e0529edf1170ac2
SHA1 e28997969a0dd9cff4d8185abe05bcc2f1d552cd
SHA512 4aeb2ec34133df39d93183ef468d036d3b3692f8b4a2514e26223010b69cf503fc6bade5b7808f3b480cdf41948b996d2ea9f274f36ded770ec7bec4b1e4f611
SSDEEP 393216:VqGzFuSfdjcMo173sB1rnpDs1FIu7msaHHJyZ:VqmFTdjcMo14B1FD46jsSJQ
MD5 SHA1 SHA512 SSDEEP

windows:6 windows x64 arch:x64

Detects Pyinstaller

pyinstaller
Unsigned PE

Checks for missing Authenticode signature.

Minor OS version

Major OS version

Entry point

55856

Magic Number

523

Subsystem

IMAGE_SUBSYSTEM_WINDOWS_GUI

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

PDB paths

user32

CreateWindowExW ShutdownBlockReasonCreate MsgWaitForMultipleObjects ShowWindow DestroyWindow RegisterClassW DefWindowProcW PeekMessageW DispatchMessageW TranslateMessage PostMessageW GetMessageW MessageBoxW MessageBoxA SystemParametersInfoW DestroyIcon SetWindowLongPtrW GetWindowLongPtrW GetClientRect InvalidateRect ReleaseDC GetDC DrawTextW GetDialogBaseUnits EndDialog DialogBoxIndirectParamW MoveWindow SendMessageW

comctl32

ord380

kernel32

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

advapi32

OpenProcessToken GetTokenInformation ConvertStringSecurityDescriptorToSecurityDescriptorW ConvertSidToStringSidW

gdi32

SelectObject DeleteObject CreateFontIndirectW

Name

.text

Size

175KB

Virtual Size

175KB

Characteristics

IMAGE_SCN_CNT_CODE IMAGE_SCN_MEM_EXECUTE IMAGE_SCN_MEM_READ

Name

.rdata

Size

78KB

Virtual Size

78KB

Characteristics

IMAGE_SCN_CNT_INITIALIZED_DATA IMAGE_SCN_MEM_READ

Name

.data

Size

3KB

Virtual Size

20KB

Characteristics

IMAGE_SCN_CNT_INITIALIZED_DATA IMAGE_SCN_MEM_READ IMAGE_SCN_MEM_WRITE

Name

.pdata

Size

9KB

Virtual Size

8KB

Characteristics

IMAGE_SCN_CNT_INITIALIZED_DATA IMAGE_SCN_MEM_READ

Name

.fptable

Size

512B

Virtual Size

256B

Characteristics

IMAGE_SCN_CNT_INITIALIZED_DATA IMAGE_SCN_MEM_READ IMAGE_SCN_MEM_WRITE

Name

.rsrc

Size

16KB

Virtual Size

16KB

Characteristics

IMAGE_SCN_CNT_INITIALIZED_DATA IMAGE_SCN_MEM_READ

Name

.reloc

Size

2KB

Virtual Size

1KB

Characteristics

IMAGE_SCN_CNT_INITIALIZED_DATA IMAGE_SCN_MEM_DISCARDABLE IMAGE_SCN_MEM_READ

Sharing

General

Malware Config

Signatures

File Explorer

52e7ef3963a9ba8075a9142b5016da513fc3c0d35b684a3a29d4a6cce2fdb8f4.bin

user32

comctl32

kernel32

advapi32

gdi32

generic

esv.pyc