Static task
static1
Behavioral task
behavioral1
Sample
TheMurkBuilder.exe
Resource
win7-20230831-en
Behavioral task
behavioral2
Sample
TheMurkBuilder.exe
Resource
win10v2004-20230915-en
General
-
Target
TheMurkBuilder.exe
-
Size
7.2MB
-
MD5
d420e73ca32c6244a02bafcfa341b308
-
SHA1
3645115c3c68a9037977edea7e8c37b3c455dfe3
-
SHA256
fc4a568a25f6c77e975c6c1de8e12d2389691d325fd9b627be6fd770ad990967
-
SHA512
2d8f80e7f02a5a74fc995e15cba41c75e88c53b480f6aa88f3485626803fade8b6ab44c700c5bbe339400e5bac8e4f187099eb0f2f9841c8774138b96f0f42a6
-
SSDEEP
98304:Nk4Hmn90BjXn8pnHYGVr3gcUkipHEjad4M45rBoUBcgFG:lmn9478W+wcU
Malware Config
Signatures
-
Unsigned PE 1 IoCs
Checks for missing Authenticode signature.
resource TheMurkBuilder.exe
Files
-
TheMurkBuilder.exe.exe windows:6 windows x64
6a3156a05c2ec3336fc5d68cfd4d05f8
Headers
DLL Characteristics
IMAGE_DLLCHARACTERISTICS_HIGH_ENTROPY_VA
IMAGE_DLLCHARACTERISTICS_DYNAMIC_BASE
IMAGE_DLLCHARACTERISTICS_NX_COMPAT
IMAGE_DLLCHARACTERISTICS_TERMINAL_SERVER_AWARE
File Characteristics
IMAGE_FILE_EXECUTABLE_IMAGE
IMAGE_FILE_LARGE_ADDRESS_AWARE
Imports
python310
Py_VerboseFlag
Py_InteractiveFlag
Py_InspectFlag
Py_OptimizeFlag
Py_NoSiteFlag
Py_BytesWarningFlag
Py_FrozenFlag
Py_IgnoreEnvironmentFlag
Py_DontWriteBytecodeFlag
Py_NoUserSiteDirectory
Py_UTF8Mode
PyImport_FrozenModules
_Py_path_config
PyMem_Malloc
PyMem_Calloc
PyMem_Realloc
PyType_Ready
PyObject_Repr
PyObject_RichCompareBool
PyObject_SetAttrString
PyObject_HasAttrString
PyObject_GetAttr
PyObject_SelfIter
PyObject_GenericSetAttr
PyObject_IsTrue
PyCallable_Check
PyObject_ClearWeakRefs
PyObject_Malloc
PyObject_Realloc
PyObject_Free
PyObject_InitVar
_PyObject_New
_PyObject_GC_Resize
PyObject_GC_Del
PyByteArray_FromStringAndSize
_PyBytes_Resize
PyUnicode_FromStringAndSize
PyUnicode_FromEncodedObject
PyUnicode_FromFormat
PyUnicode_InternInPlace
PyUnicode_FromWideChar
PyUnicode_DecodeUTF8
PyUnicode_Concat
PyUnicode_FindChar
PyUnicode_RichCompare
PyUnicode_Format
PyUnicode_New
_PyUnicode_Ready
PyUnicode_AsUnicode
PyLong_AsLongAndOverflow
PyLong_FromLongLong
PyLong_FromUnsignedLongLong
PyLong_FromString
PyLong_FromUnicodeObject
_PyLong_New
_PyLong_Copy
PyFloat_FromDouble
PyComplex_FromDoubles
PyTuple_New
PyTuple_Pack
PyList_New
PyList_SetItem
PyList_Sort
PyDict_New
PyDict_GetItem
PyDict_GetItemString
PyDict_SetItemString
_PySet_NextEntry
PyFrozenSet_New
PySet_Add
PyCMethod_New
PyModule_NewObject
PyModule_GetName
PyModule_GetFilenameObject
PyModule_GetDef
PyCode_NewWithPosOnlyArgs
PyObject_Call
_PyConfig_InitCompatConfig
PyObject_CallFunctionObjArgs
PyObject_CallMethodObjArgs
PyObject_GetIter
PyIter_Next
PyIter_Send
PyNumber_Add
PyNumber_Subtract
PyNumber_FloorDivide
PyNumber_InPlaceAdd
PyNumber_InPlaceMultiply
PyNumber_InPlaceLshift
PyNumber_InPlaceOr
PyNumber_ToBase
PySequence_List
PyMapping_Size
_PyObject_HasLen
PyObject_LengthHint
PyObject_GetBuffer
PyBuffer_Release
_PyGen_SetStopIterationValue
_PyGen_FetchStopIterationValue
PyDescr_IsData
PyErr_WarnEx
PyErr_ExceptionMatches
PyException_SetCause
PyErr_BadArgument
PyErr_NoMemory
PyOS_snprintf
_PyErr_FormatFromCause
PyArg_ParseTuple
PyArg_ParseTupleAndKeywords
PyArg_UnpackTuple
_PyArg_NoKeywords
PyModule_ExecDef
PyModule_FromDefAndSpec2
PyErr_Print
Py_CompileStringExFlags
PyEval_GetFuncName
PyEval_EvalFrameEx
PyEval_RestoreThread
PySys_WriteStderr
PyImport_ExecCodeModule
PyImport_ExecCodeModuleEx
PyImport_GetModuleDict
PyImport_ImportModule
PyImport_ImportFrozenModule
_PyImport_FixupExtensionObject
PyEval_EvalCodeEx
PyFrame_New
PyMarshal_ReadObjectFromString
_PyErr_NormalizeException
_Py_NotImplementedStruct
_PyByteArray_empty_string
PyBool_Type
PyFloat_Type
PyComplex_Type
PyDictItems_Type
PySet_Type
PyFrozenSet_Type
PyModuleDef_Type
PyMethod_Type
PyCode_Type
PyTraceBack_Type
_Py_EllipsisObject
PySlice_Type
PyEllipsis_Type
PyGen_Type
PyCoro_Type
PyAsyncGen_Type
_PyAsyncGenWrappedValue_Type
Py_GenericAliasType
PyExc_StopAsyncIteration
PyExc_UnboundLocalError
PyExc_ImportWarning
_Py_PackageContext
PyFrame_Type
Py_DebugFlag
_PyRuntime_Initialize
PySys_SetArgv
Py_ExitStatusException
Py_InitializeFromConfig
Py_SetProgramName
PyErr_SetInterrupt
_PyWarnings_Init
PyConfig_SetArgv
PyConfig_SetString
PyWideStringList_Append
PyStatus_Exception
PyDict_DelItemString
PyLong_AsLong
PyUnicode_AsUTF8
PyNumber_Invert
PyExc_UnicodeEncodeError
PyExc_EOFError
PyByteArray_FromObject
PyObject_SetAttr
PyMap_Type
PyExc_EnvironmentError
PyExc_UnicodeDecodeError
PyReversed_Type
PyObject_DelItem
PySet_New
PyExc_UnicodeError
PyExc_NotImplementedError
PyExc_NameError
PyExc_Exception
PyProperty_Type
PyEnum_Type
PyExc_BaseException
PyDict_Type
PyTuple_Type
PyUnicode_Join
_PyObject_FunctionStr
PyRange_Type
PyLong_Type
PyDict_DelItem
PyExc_ZeroDivisionError
PyExc_RuntimeError
PyExc_ImportError
PyBytes_Type
PyByteArray_Type
PyExc_GeneratorExit
PyObject_GetItem
PyMemoryView_Type
PySequence_Tuple
PyDict_MergeFromSeq2
PyDict_Merge
PyNumber_Negative
PyZip_Type
PyExc_OverflowError
PyExc_AssertionError
PyExc_StopIteration
PySeqIter_Type
PyEval_AcquireThread
PyEval_SaveThread
Py_MakePendingCalls
Py_Exit
PyErr_WriteUnraisable
PyObject_IsSubclass
PySequence_Check
_PyObject_GC_Malloc
PyExc_IndexError
PyList_Type
PyObject_SetItem
PyLong_FromSsize_t
PyNumber_Long
_PyDict_NewPresized
PyExc_ValueError
PyExc_KeyError
PyExc_OSError
PyModule_Type
_Py_FalseStruct
PyUnicode_Type
PyErr_PrintEx
PyException_SetContext
PyException_GetContext
Py_GenericAlias
PySequence_Contains
PyNumber_AsSsize_t
PyModule_GetDict
PyDict_SetItem
PyUnicode_Find
PyUnicode_GetLength
PyUnicode_Substring
PyObject_GetAttrString
PyType_IsSubtype
_PyRuntime
PyExc_TypeError
PyExc_SystemError
PyExc_AttributeError
PyFunction_Type
PyCFunction_Type
_Py_NoneStruct
PyBaseObject_Type
PyType_Type
PyErr_Format
PyObject_IsInstance
_PyType_Lookup
_Py_TrueStruct
PySys_SetObject
PySys_GetObject
PyStructSequence_New
PyStructSequence_InitType
PyCapsule_New
PyLong_FromLong
PyUnicode_FromString
PyObject_CallObject
kernel32
WriteConsoleW
HeapReAlloc
HeapSize
SetFilePointerEx
GetFileSizeEx
GetConsoleMode
GetConsoleOutputCP
FlushFileBuffers
GetProcessHeap
GetStringTypeW
FreeEnvironmentStringsW
GetEnvironmentStringsW
GetCPInfo
GetOEMCP
GetACP
IsValidCodePage
FindNextFileW
FindFirstFileExW
FindClose
GetFileType
LCMapStringW
CompareStringW
FlsFree
FlsSetValue
FlsGetValue
FlsAlloc
MultiByteToWideChar
HeapFree
HeapAlloc
GetModuleHandleExW
GetStdHandle
GetCommandLineW
GetCommandLineA
RtlPcToFileHeader
RaiseException
EncodePointer
FreeLibrary
TlsFree
TlsSetValue
TlsGetValue
TlsAlloc
InitializeCriticalSectionAndSpinCount
DeleteCriticalSection
LeaveCriticalSection
EnterCriticalSection
SetLastError
RtlUnwindEx
GetEnvironmentVariableA
GetModuleHandleW
GetStartupInfoW
IsDebuggerPresent
InitializeSListHead
GetCurrentThreadId
QueryPerformanceCounter
IsProcessorFeaturePresent
TerminateProcess
GetCurrentProcess
SetUnhandledExceptionFilter
UnhandledExceptionFilter
RtlVirtualUnwind
RtlLookupFunctionEntry
RtlCaptureContext
WideCharToMultiByte
FindResourceA
FormatMessageA
LockResource
LoadResource
LoadLibraryExW
GetProcAddress
GetModuleHandleA
GetModuleFileNameW
GetSystemTimeAsFileTime
GetCurrentProcessId
SetErrorMode
WriteFile
GetShortPathNameW
CreateFileW
SetDllDirectoryW
OpenProcess
CreateThread
ExitProcess
Sleep
WaitForSingleObject
GetLastError
CloseHandle
SetEnvironmentVariableW
GetEnvironmentVariableW
SetStdHandle
Sections
.text Size: 2.7MB - Virtual size: 2.7MB
IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ
.rdata Size: 160KB - Virtual size: 159KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
.data Size: 29KB - Virtual size: 155KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE
.pdata Size: 35KB - Virtual size: 34KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
_RDATA Size: 512B - Virtual size: 348B
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
.rsrc Size: 4.3MB - Virtual size: 4.3MB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
.reloc Size: 4KB - Virtual size: 3KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ