Static task
static1
Behavioral task
behavioral1
Sample
2024-09-28_51e25661060e65dae40eba218bd532c5_cobalt-strike_ryuk.exe
Resource
win7-20240903-en
Behavioral task
behavioral2
Sample
2024-09-28_51e25661060e65dae40eba218bd532c5_cobalt-strike_ryuk.exe
Resource
win10v2004-20240802-en
General
-
Target
2024-09-28_51e25661060e65dae40eba218bd532c5_cobalt-strike_ryuk
-
Size
4.6MB
-
MD5
51e25661060e65dae40eba218bd532c5
-
SHA1
7a23eb0a644a696b19209407fa22f320e0b95177
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SHA256
221fa608e183bda946285d6061d4d21fa767c7b990f3f4e460723a10f3bfab57
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SHA512
792b232beee12001b062c02b51dc47d2c4206f3995209e5b15c607c0526e1c9906d5b6d2e59f1bbcda176dc19da9e0178f86242890f7e91c7e8507ba810abe47
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SSDEEP
49152:mZDMLDYKhSqluda1qPF2oGDaniR2aAQ17UpgHwX4Lz7ubXk0INEfX0oYZEncq2:cMLOL4rDaiSQ17UpgHwX4Lz7ubXkifX
Malware Config
Signatures
-
Unsigned PE 1 IoCs
Checks for missing Authenticode signature.
resource 2024-09-28_51e25661060e65dae40eba218bd532c5_cobalt-strike_ryuk
Files
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2024-09-28_51e25661060e65dae40eba218bd532c5_cobalt-strike_ryuk.exe windows:6 windows x64 arch:x64
1582e7dfd95726f49a4a159c3db05e5e
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
python312
PyArg_ParseTuple
PyArg_ParseTupleAndKeywords
PyArg_UnpackTuple
PyAsyncGen_Type
PyBaseObject_Type
PyBool_Type
PyByteArray_FromObject
PyByteArray_FromStringAndSize
PyByteArray_Type
PyBytes_AsString
PyBytes_FromString
PyBytes_Type
PyCFunction_Type
PyCMethod_New
PyCallable_Check
PyCapsule_New
PyCode_Type
PyComplex_FromDoubles
PyComplex_Type
PyConfig_SetArgv
PyConfig_SetString
PyCoro_Type
PyDict_DelItem
PyDict_DelItemString
PyDict_GetItem
PyDict_GetItemString
PyDict_MergeFromSeq2
PyDict_New
PyDict_SetItem
PyDict_SetItemString
PyDict_Type
PyEllipsis_Type
PyErr_BadArgument
PyErr_ExceptionMatches
PyErr_Format
PyErr_NoMemory
PyErr_Print
PyErr_PrintEx
PyErr_SetInterrupt
PyErr_WriteUnraisable
PyEval_GetFuncName
PyEval_RestoreThread
PyEval_SaveThread
PyExc_AttributeError
PyExc_GeneratorExit
PyExc_ImportError
PyExc_KeyError
PyExc_NameError
PyExc_OverflowError
PyExc_RuntimeError
PyExc_StopAsyncIteration
PyExc_StopIteration
PyExc_SystemError
PyExc_TypeError
PyExc_ValueError
PyException_GetContext
PyException_SetCause
PyException_SetContext
PyFloat_FromDouble
PyFloat_Type
PyFrame_Type
PyFrozenSet_New
PyFrozenSet_Type
PyFunction_Type
PyGen_Type
PyImport_ExecCodeModule
PyImport_ExecCodeModuleEx
PyImport_FrozenModules
PyImport_GetModuleDict
PyImport_ImportFrozenModule
PyImport_ImportModule
PyIter_Next
PyIter_Send
PyList_Append
PyList_New
PyList_Sort
PyList_Type
PyLong_AsLong
PyLong_AsSsize_t
PyLong_FromLong
PyLong_FromSsize_t
PyLong_Type
PyMarshal_ReadObjectFromString
PyMem_GetAllocator
PyMem_Realloc
PyMethod_Type
PyModuleDef_Type
PyModule_ExecDef
PyModule_FromDefAndSpec2
PyModule_GetDef
PyModule_GetDict
PyModule_GetFilenameObject
PyModule_GetName
PyModule_NewObject
PyModule_Type
PyNumber_Add
PyNumber_AsSsize_t
PyNumber_FloorDivide
PyNumber_InPlaceAdd
PyNumber_InPlaceLshift
PyNumber_InPlaceOr
PyNumber_Negative
PyNumber_Subtract
PyOS_snprintf
PyObject_Call
PyObject_CallFunction
PyObject_CallFunctionObjArgs
PyObject_CallMethodObjArgs
PyObject_CallObject
PyObject_ClearWeakRefs
PyObject_DelItem
PyObject_GC_Del
PyObject_GenericSetAttr
PyObject_GetAttr
PyObject_GetAttrString
PyObject_GetIter
PyObject_Init
PyObject_IsInstance
PyObject_IsSubclass
PyObject_Repr
PyObject_RichCompare
PyObject_RichCompareBool
PyObject_SelfIter
PyObject_SetAttr
PyObject_SetAttrString
PyObject_SetItem
PyObject_Str
PyRange_Type
PySeqIter_Type
PySequence_Check
PySequence_Contains
PySequence_List
PySet_Add
PySet_New
PySet_Type
PySlice_Type
PyStatus_Exception
PyStructSequence_InitType
PyStructSequence_New
PySys_GetObject
PySys_SetArgv
PySys_SetObject
PySys_WriteStderr
PyThreadState_Get
PyTraceBack_Type
PyTuple_New
PyTuple_Type
PyType_IsSubtype
PyType_Ready
PyType_Type
PyUnicode_AsUTF8
PyUnicode_AsWideCharString
PyUnicode_Concat
PyUnicode_DecodeUTF8
PyUnicode_FromFormat
PyUnicode_FromString
PyUnicode_FromStringAndSize
PyUnicode_FromWideChar
PyUnicode_InternInPlace
PyUnicode_Join
PyUnicode_New
PyUnicode_Type
PyUnstable_Code_NewWithPosOnlyArgs
PyWideStringList_Append
Py_BuildValue
Py_BytesWarningFlag
Py_CompileStringExFlags
Py_DebugFlag
Py_DontWriteBytecodeFlag
Py_Exit
Py_ExitStatusException
Py_FrozenFlag
Py_GenericAlias
Py_GenericAliasType
Py_IgnoreEnvironmentFlag
Py_InitializeFromConfig
Py_InspectFlag
Py_InteractiveFlag
Py_NoSiteFlag
Py_NoUserSiteDirectory
Py_OptimizeFlag
Py_SetProgramName
Py_UTF8Mode
Py_VerboseFlag
_PyArg_NoKeywords
_PyAsyncGenWrappedValue_Type
_PyConfig_InitCompatConfig
_PyDict_MaybeUntrack
_PyDict_NewPresized
_PyErr_ChainStackItem
_PyErr_NormalizeException
_PyErr_WriteUnraisableMsg
_PyEval_EvalFrameDefault
_PyGen_FetchStopIterationValue
_PyImport_FixupExtensionObject
_PyLong_Copy
_PyLong_New
_PyObject_GC_Resize
_PyObject_LookupAttr
_PyObject_New
_PyRuntime
_PyRuntime_Initialize
_PySet_NextEntry
_PyThreadState_GetCurrent
_PyTuple_MaybeUntrack
_PyType_Lookup
_PyWarnings_Init
_PyWeakref_CallableProxyType
_PyWeakref_ClearRef
_PyWeakref_ProxyType
_PyWeakref_RefType
_Py_Dealloc
_Py_EllipsisObject
_Py_FalseStruct
_Py_NoneStruct
_Py_NotImplementedStruct
_Py_TrueStruct
kernel32
CloseHandle
CompareStringW
CreateFileW
CreateThread
DeleteCriticalSection
EncodePointer
EnterCriticalSection
ExitProcess
FindClose
FindFirstFileExW
FindNextFileW
FindResourceA
FlsAlloc
FlsFree
FlsGetValue
FlsSetValue
FlushFileBuffers
FormatMessageA
FreeEnvironmentStringsW
FreeLibrary
GetACP
GetCPInfo
GetCommandLineA
GetCommandLineW
GetConsoleMode
GetConsoleOutputCP
GetCurrentProcess
GetCurrentProcessId
GetCurrentThreadId
GetEnvironmentStringsW
GetEnvironmentVariableA
GetEnvironmentVariableW
GetFileSizeEx
GetFileType
GetLastError
GetModuleFileNameW
GetModuleHandleA
GetModuleHandleExW
GetModuleHandleW
GetOEMCP
GetProcAddress
GetProcessHeap
GetShortPathNameW
GetStartupInfoW
GetStdHandle
GetStringTypeW
GetSystemTimeAsFileTime
HeapAlloc
HeapFree
HeapReAlloc
HeapSize
InitializeCriticalSectionAndSpinCount
InitializeSListHead
IsDebuggerPresent
IsProcessorFeaturePresent
IsValidCodePage
LCMapStringW
LeaveCriticalSection
LoadLibraryExW
LoadResource
LockResource
MultiByteToWideChar
OpenProcess
QueryPerformanceCounter
RaiseException
RtlCaptureContext
RtlLookupFunctionEntry
RtlPcToFileHeader
RtlUnwindEx
RtlVirtualUnwind
SetConsoleCtrlHandler
SetDllDirectoryW
SetEnvironmentVariableW
SetErrorMode
SetFilePointerEx
SetLastError
SetStdHandle
SetUnhandledExceptionFilter
Sleep
TerminateProcess
TlsAlloc
TlsFree
TlsGetValue
TlsSetValue
UnhandledExceptionFilter
WaitForSingleObject
WideCharToMultiByte
WriteConsoleW
WriteFile
Sections
.text Size: 275KB - Virtual size: 274KB
IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ
.rdata Size: 89KB - Virtual size: 88KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
.data Size: 24KB - Virtual size: 36KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE
.pdata Size: 10KB - Virtual size: 9KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
.00cfg Size: 512B - Virtual size: 56B
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
.gxfg Size: 6KB - Virtual size: 6KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
_RDATA Size: 512B - Virtual size: 500B
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
.rsrc Size: 4.2MB - Virtual size: 4.2MB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
.reloc Size: 3KB - Virtual size: 3KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ