Static task
static1
Behavioral task
behavioral1
Sample
2024-10-18_8c8c610006ce9c7e959cfe75af74da23_ryuk.exe
Resource
win7-20240903-en
Behavioral task
behavioral2
Sample
2024-10-18_8c8c610006ce9c7e959cfe75af74da23_ryuk.exe
Resource
win10v2004-20241007-en
General
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Target
2024-10-18_8c8c610006ce9c7e959cfe75af74da23_ryuk
-
Size
12.6MB
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MD5
8c8c610006ce9c7e959cfe75af74da23
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SHA1
39044113d6b757850f4c7e18d72df26153e30680
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SHA256
c78ea06bd46b79292d86565f5b759d8aad632f2d16f2453493f841c485dfeb51
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SHA512
95be3054d65d00aca50022bf0fac7eeac3c85dd0f89bc24fe242a10ce4b147ef18a4d25bd26a56ca1161eaf56b3f33809a45825f4c710b6872fb124c95e88ee0
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SSDEEP
98304:x8ypbSZGIOM+Abtp+WKs0Y0IGBvdNzAw/cZX2uYX7ShqSq2QEn2:iL+ApKs0Y0IGL2hn2
Malware Config
Signatures
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Unsigned PE 1 IoCs
Checks for missing Authenticode signature.
resource 2024-10-18_8c8c610006ce9c7e959cfe75af74da23_ryuk
Files
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2024-10-18_8c8c610006ce9c7e959cfe75af74da23_ryuk.exe windows:6 windows x64 arch:x64
12fd2ecb64ae354ce2b0b26f4f955b10
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
python38
_PyWarnings_Init
PyConfig_SetArgv
Py_NoSiteFlag
PyErr_SetInterrupt
PyList_Size
Py_NoUserSiteDirectory
Py_SetProgramName
PyStatus_Exception
Py_DontWriteBytecodeFlag
Py_DebugFlag
PyLong_AsLong
PyUnicode_AsUTF8
PyConfig_SetString
Py_BytesWarningFlag
_PyConfig_InitCompatConfig
Py_VerboseFlag
PySys_SetArgv
PyImport_FrozenModules
_PyRuntime_Initialize
Py_HasFileSystemDefaultEncoding
Py_InitializeFromConfig
Py_OptimizeFlag
PyDict_DelItemString
Py_FileSystemDefaultEncoding
Py_UTF8Mode
Py_InteractiveFlag
Py_InspectFlag
Py_IgnoreEnvironmentFlag
Py_FrozenFlag
_PyAsyncGenWrappedValue_Type
PyModule_GetFilenameObject
PySequence_List
PyExc_ImportWarning
PyOS_snprintf
PyMem_GetAllocator
PyDictItems_Type
PyErr_WarnEx
PyFunction_Type
_PyArg_NoKeywords
PyDictKeys_Type
PySlice_Type
PyImport_ImportModule
PyBytes_AsString
PyObject_SelfIter
PyEval_GetFuncName
PyImport_ExecCodeModuleEx
PyType_GetFlags
PySequence_InPlaceConcat
PyUnicode_RichCompare
PyUnicode_DecodeUTF8
PyList_Sort
_PyGen_FetchStopIterationValue
PyObject_SetAttrString
PyNumber_FloorDivide
PyUnicode_Concat
PyExc_UnboundLocalError
_PyImport_FixupExtensionObject
Py_BuildValue
PyComplex_FromDoubles
PyObject_GetAttr
PyModule_GetName
PyUnicode_FromOrdinal
PyFrame_GetLineNumber
PyBytes_FromString
PyModule_GetDef
_PyObject_GC_Resize
PyLong_FromString
_Py_EllipsisObject
PyDict_SetItemString
PyFrame_Type
PyFloat_FromDouble
PyDictValues_Type
PyUnicode_New
PyObject_LengthHint
PyUnicode_FromWideChar
PyMarshal_ReadObjectFromString
PyIter_Next
PyObject_GetIter
PyNumber_Add
PyUnicode_InternInPlace
Py_ExitStatusException
PyObject_RichCompare
_Py_PackageContext
PyCoro_Type
PyNumber_InPlaceAdd
PyModule_NewObject
PyMethod_Type
PyNumber_Subtract
PyCode_NewWithPosOnlyArgs
PyImport_GetModuleDict
PyObject_Free
PyImport_ImportFrozenModule
PyErr_ExceptionMatches
_PyErr_FormatFromCause
PyUnicode_FindChar
PyObject_GC_Del
PyObject_CallFunctionObjArgs
PyLong_FromUnicodeObject
_PyBytes_Resize
PyObject_ClearWeakRefs
PyCode_Type
PyUnicode_AsWideCharString
PyUnicode_FromFormat
PyObject_GetBuffer
PyErr_BadArgument
PyType_Ready
PyModule_FromDefAndSpec2
Py_CompileStringExFlags
PyObject_RichCompareBool
PySet_Type
_PyLong_New
PyObject_GenericSetAttr
PyNumber_ToBase
PyByteArray_FromStringAndSize
PyModule_ExecDef
PyLong_AsLongAndOverflow
_PySet_NextEntry
PyErr_NoMemory
PyObject_Realloc
PyDict_GetItemString
PyEllipsis_Type
PyDict_GetItem
PyObject_CallObject
PyComplex_Type
PyBytes_FromStringAndSize
PyExc_StopAsyncIteration
PyArg_ParseTupleAndKeywords
PyImport_ExecCodeModule
PyUnicode_FromEncodedObject
_PyObject_New
PyMem_Realloc
PyEval_GetFrame
PyCFunction_NewEx
PyObject_IsTrue
PyObject_Str
PyTuple_Pack
_PyByteArray_empty_string
_PyUnicode_Ready
PyCallable_Check
PyMem_Malloc
_PyErr_NormalizeException
PyModuleDef_Type
PyGen_Type
PyObject_CallMethodObjArgs
PyArg_UnpackTuple
PyException_SetCause
PyAsyncGen_Type
PyErr_Print
PyTraceBack_Type
PyEval_EvalFrameEx
PyUnicode_Format
PyBuffer_Release
PyObject_Call
PyNumber_Float
PyArg_ParseTuple
PySys_WriteStderr
PyEval_RestoreThread
PyUnicode_FromStringAndSize
PyFloat_FromString
PyList_SetSlice
PyWideStringList_Append
_Py_path_config
PyExc_MemoryError
PyExc_UnicodeEncodeError
PyFrozenSet_Type
_Py_NotImplementedStruct
PyByteArray_FromObject
PyFrozenSet_New
PyObject_Repr
PyObject_Dir
PySet_Add
PyFilter_Type
PyExc_IOError
PyExc_LookupError
PyFloat_Type
PyBool_Type
PySet_Contains
PyObject_SetAttr
PyMap_Type
PyExc_EnvironmentError
PyExc_UnicodeDecodeError
PyObject_DelItem
PyReversed_Type
PySet_New
PyExc_NameError
PyExc_NotImplementedError
PyProperty_Type
PyEnum_Type
PyExc_UnicodeError
PyExc_Exception
PyExc_BaseException
PyUnicode_Join
PyTuple_Type
PyDict_Type
PyRange_Type
PyDict_DelItem
PyLong_Type
PyExc_ZeroDivisionError
PyExc_RuntimeError
PyByteArray_Type
PyExc_ImportError
PyBytes_Type
PyExc_GeneratorExit
PyObject_GetItem
PyMemoryView_Type
PySequence_Tuple
PyDict_MergeFromSeq2
PyDict_Merge
PyNumber_Negative
PyZip_Type
PyExc_OverflowError
PyEval_AcquireThread
PyExc_AssertionError
_PyTraceMalloc_NewReference
_PyObject_GC_Malloc
_Py_tracemalloc_config
PyObject_IsSubclass
PyExc_StopIteration
PySequence_Check
PySlice_New
PyList_New
PySeqIter_Type
PyErr_WriteUnraisable
PyEval_SaveThread
Py_Exit
Py_MakePendingCalls
PyObject_SetItem
PyExc_IndexError
PyList_Type
PyDict_New
PyLong_FromSsize_t
PyNumber_Long
_PyDict_NewPresized
PyUnicode_Substring
PyUnicode_GetLength
PyException_GetContext
PyModule_Type
PyNumber_AsSsize_t
PyExc_OSError
_PyRuntime
PyException_SetContext
PyUnicode_Type
PyDict_SetItem
PyObject_GetAttrString
PyUnicode_Find
PyModule_GetDict
PyType_IsSubtype
PyExc_ValueError
PySequence_Contains
PyExc_KeyError
PyErr_PrintEx
PyType_Type
_PyType_Lookup
PyExc_SystemError
PyExc_TypeError
PyObject_IsInstance
PyErr_Format
PyExc_AttributeError
PyTuple_New
_Py_NoneStruct
PyCFunction_Type
PyBaseObject_Type
PyUnicode_FromString
_Py_TrueStruct
PyCapsule_New
PySys_SetObject
_Py_FalseStruct
PyStructSequence_New
PySys_GetObject
PyStructSequence_InitType
PyLong_FromLong
PyNumber_InPlaceLshift
kernel32
EncodePointer
WaitForSingleObject
RtlPcToFileHeader
WriteConsoleW
HeapReAlloc
HeapSize
RaiseException
SetFilePointerEx
GetFileSizeEx
GetConsoleMode
GetConsoleOutputCP
FlushFileBuffers
GetProcessHeap
GetStringTypeW
FreeEnvironmentStringsW
GetEnvironmentStringsW
GetCPInfo
GetOEMCP
GetACP
IsValidCodePage
FindNextFileW
FindFirstFileExW
FindClose
MultiByteToWideChar
GetFileType
LCMapStringW
CompareStringW
VirtualProtect
InitializeCriticalSectionEx
FlsFree
FlsSetValue
FlsGetValue
FlsAlloc
HeapAlloc
HeapFree
GetStdHandle
GetCommandLineW
GetCommandLineA
SetConsoleCtrlHandler
GetModuleHandleExW
FreeLibrary
TlsFree
TlsSetValue
TlsGetValue
TlsAlloc
InitializeCriticalSectionAndSpinCount
DeleteCriticalSection
LeaveCriticalSection
EnterCriticalSection
SetLastError
RtlUnwindEx
GetModuleHandleW
GetStartupInfoW
IsDebuggerPresent
InitializeSListHead
GetCurrentThreadId
QueryPerformanceCounter
IsProcessorFeaturePresent
TerminateProcess
GetCurrentProcess
SetUnhandledExceptionFilter
UnhandledExceptionFilter
RtlVirtualUnwind
RtlLookupFunctionEntry
RtlCaptureContext
LoadLibraryExW
FormatMessageA
GetSystemTimeAsFileTime
WideCharToMultiByte
GetCurrentProcessId
GetProcAddress
LoadResource
LockResource
GetModuleHandleA
CreateFileW
FindResourceA
GetEnvironmentVariableW
SetErrorMode
SetEnvironmentVariableW
GetModuleFileNameW
GetShortPathNameW
WriteFile
SetDllDirectoryW
ExitProcess
SetStdHandle
CreateThread
CloseHandle
GetLastError
Sleep
OpenProcess
GetEnvironmentVariableA
Sections
.text Size: 6.8MB - Virtual size: 6.8MB
IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ
.rdata Size: 166KB - Virtual size: 166KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
.data Size: 36KB - Virtual size: 282KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE
.pdata Size: 84KB - Virtual size: 84KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
.gfids Size: 512B - Virtual size: 204B
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
.gehcont Size: 512B - Virtual size: 16B
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
.fptable Size: 512B - Virtual size: 256B
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE
.rsrc Size: 5.5MB - Virtual size: 5.5MB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
.reloc Size: 4KB - Virtual size: 4KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ