Static task
static1
Behavioral task
behavioral1
Sample
cbb.exe
Resource
win7-20240221-en
Behavioral task
behavioral2
Sample
cbb.exe
Resource
win10v2004-20240226-en
General
-
Target
cbb.exe
-
Size
380KB
-
MD5
5f37e6eaa69d33a2afebc984a59f4e51
-
SHA1
f70fab2d3047db822870f49e94abf03f0ea8a37c
-
SHA256
9dc4defaf8e098d716e85a2316dc1f95d78bbde86fa62b8b86348fd9ca4bc404
-
SHA512
0d058c25674d1a4f0c3950062d044e0742d0c0cbaa1189ee0835228908331907aa95301c9adf0349a82e6736f3038a8a54e6334fb85f788d8623e697a58ff8c9
-
SSDEEP
6144:RSTqD0YtVa4Ot9GW0N0ffybc28QXa7aoVPOKV:RyY0majGrN0ffCjoVR
Malware Config
Signatures
-
Unsigned PE 1 IoCs
Checks for missing Authenticode signature.
resource cbb.exe
Files
-
cbb.exe.exe windows:6 windows x64 arch:x64
8136bfd9e5ed5b95cf839e2225293533
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
PyImport_ExecCodeModuleEx
PyUnicode_DecodeUTF8
PyList_Sort
_PyGen_FetchStopIterationValue
PyExc_RuntimeError
PyObject_InitVar
PyObject_SetAttrString
PyNumber_FloorDivide
PyUnicode_Concat
PyExc_UnboundLocalError
_PyImport_FixupExtensionObject
PyLong_FromUnsignedLongLong
PyComplex_FromDoubles
PyObject_GetAttr
PyModule_GetName
PyModule_GetDef
_PyObject_GC_Resize
PyTuple_New
_Py_EllipsisObject
PyDict_SetItemString
PyLong_FromLongLong
PyFrame_Type
PyFloat_FromDouble
PySet_Add
PyExc_AttributeError
PyUnicode_New
PyObject_LengthHint
PyUnicode_FromWideChar
PyMarshal_ReadObjectFromString
PyIter_Next
PyObject_GetIter
PyNumber_Add
PyEval_EvalCodeEx
PyIter_Send
PyUnicode_InternInPlace
PyNumber_InPlaceLshift
PyMapping_Size
PyDict_Type
PyObject_RichCompare
_Py_PackageContext
PyBool_Type
PyTuple_Type
PyCoro_Type
PyNumber_InPlaceAdd
PyFloat_Type
PyModule_NewObject
PyMethod_Type
PyLong_Type
PyNumber_Subtract
PyExc_OverflowError
PyCode_NewWithPosOnlyArgs
PyImport_GetModuleDict
PyModule_GetDict
PyObject_Free
PyImport_ImportFrozenModule
PyErr_ExceptionMatches
_PyErr_FormatFromCause
PyUnicode_FindChar
PyObject_GC_Del
PyObject_CallFunctionObjArgs
PyDescr_IsData
PyObject_ClearWeakRefs
PyCode_Type
PyUnicode_AsWideCharString
PyUnicode_FromFormat
PyNumber_InPlaceMultiply
PyErr_BadArgument
PySet_New
PyObject_SelfIter
PyType_Ready
PyModule_FromDefAndSpec2
PyObject_GetAttrString
Py_CompileStringExFlags
PyObject_RichCompareBool
_PyObject_HasLen
PySet_Type
_PyLong_New
PyObject_GenericSetAttr
PyDict_New
PyFrozenSet_New
PyByteArray_FromStringAndSize
PyModule_ExecDef
PyCMethod_New
PyNumber_Negative
_PyGen_SetStopIterationValue
_PySet_NextEntry
PyErr_NoMemory
PyObject_Realloc
PyDict_GetItemString
PyEllipsis_Type
PyDict_GetItem
PyImport_FrozenModules
PyObject_CallObject
PyComplex_Type
_Py_NotImplementedStruct
PyDict_DelItem
PyExc_StopAsyncIteration
PyArg_ParseTupleAndKeywords
PyImport_ExecCodeModule
_PyObject_New
PyMem_Realloc
PyObject_Str
PyExc_NameError
PyTuple_Pack
_PyUnicode_Ready
PyCallable_Check
PyMem_Malloc
_PyErr_NormalizeException
PyModuleDef_Type
PyExc_ImportError
PyGen_Type
PyObject_CallMethodObjArgs
PyArg_UnpackTuple
PyExc_SystemError
PyException_SetCause
PyList_SetItem
PyAsyncGen_Type
PyErr_Print
PyTraceBack_Type
PyExc_GeneratorExit
PyRange_Type
PyEval_EvalFrameEx
Py_GenericAliasType
_PyLong_Copy
_PyType_Lookup
PyObject_Call
PyObject_Repr
PyByteArray_Type
PyArg_ParseTuple
PySys_WriteStderr
PyUnicode_Substring
PyEval_RestoreThread
PyUnicode_FromStringAndSize
PyEval_GetFuncName
PyUnicode_AsUnicode
PyImport_ImportModule
PySlice_Type
PyExc_KeyError
_PyArg_NoKeywords
PyFrame_New
PyFunction_Type
PyErr_WarnEx
PyObject_Malloc
PyOS_snprintf
PyCFunction_Type
PyObject_SetAttr
PyMem_Calloc
PyBaseObject_Type
PyExc_ImportWarning
PyNumber_InPlaceOr
PySequence_List
PyByteArray_FromObject
PyFrozenSet_Type
PyModule_GetFilenameObject
_PyAsyncGenWrappedValue_Type
Py_FrozenFlag
Py_IgnoreEnvironmentFlag
Py_InspectFlag
Py_InteractiveFlag
Py_UTF8Mode
PyDict_DelItemString
PyStructSequence_SetItem
Py_OptimizeFlag
Py_InitializeFromConfig
_PyRuntime_Initialize
PySys_SetArgv
Py_VerboseFlag
_PyConfig_InitCompatConfig
Py_BytesWarningFlag
PyObject_CallMethod
PyUnicode_AsUTF8
PyLong_AsLong
Py_DebugFlag
Py_DontWriteBytecodeFlag
PyStatus_Exception
Py_SetProgramName
Py_NoUserSiteDirectory
Py_NoSiteFlag
PyConfig_SetArgv
Py_SetPythonHome
_PyWarnings_Init
Py_ExitStatusException
Py_GetPath
PyType_Type
PyEval_AcquireThread
PyException_GetContext
_Py_TrueStruct
PyExc_IndexError
PyModule_Type
_PyObject_GC_Malloc
PyExc_TypeError
PyObject_IsSubclass
PyZip_Type
PyNumber_AsSsize_t
_PyRuntime
PyList_Type
PyExc_StopIteration
PyObject_IsInstance
PyException_SetContext
PyUnicode_Type
PySequence_Check
PyDict_SetItem
PyBytes_Type
PyUnicode_Join
PyType_IsSubtype
PySeqIter_Type
PyExc_BaseException
PyErr_Format
PyExc_ValueError
PyErr_WriteUnraisable
PySequence_Contains
_Py_NoneStruct
PyEval_SaveThread
PyLong_FromSsize_t
PyErr_PrintEx
Py_Exit
Py_MakePendingCalls
_PyDict_NewPresized
Py_GenericAlias
PyUnicode_FromString
PyCapsule_New
PySys_SetObject
_Py_FalseStruct
PyStructSequence_New
PySys_GetObject
PyStructSequence_InitType
PyLong_FromLong
PyList_New
kernel32
WriteConsoleW
HeapReAlloc
HeapSize
SetFilePointerEx
GetFileSizeEx
GetConsoleMode
GetConsoleOutputCP
FlushFileBuffers
GetProcessHeap
GetStringTypeW
FreeEnvironmentStringsW
GetEnvironmentStringsW
GetCPInfo
GetOEMCP
GetACP
IsValidCodePage
FindNextFileW
FindFirstFileExW
FindClose
MultiByteToWideChar
GetFileType
LCMapStringW
CompareStringW
HeapFree
HeapAlloc
GetCommandLineW
GetCommandLineA
GetStdHandle
GetModuleHandleExW
ExitProcess
RaiseException
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
CloseHandle
LockResource
GetLastError
GetModuleHandleA
CreateFileW
FindResourceA
GetEnvironmentVariableW
SetErrorMode
SetEnvironmentVariableW
GetModuleFileNameW
GetShortPathNameW
WriteFile
SetStdHandle
Sections
.text Size: 261KB - Virtual size: 261KB
IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ
.rdata Size: 83KB - Virtual size: 83KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
.data Size: 14KB - Virtual size: 23KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE
.pdata Size: 12KB - Virtual size: 12KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
_RDATA Size: 512B - Virtual size: 252B
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
.rsrc Size: 4KB - Virtual size: 4KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
.reloc Size: 2KB - Virtual size: 2KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ