Static task
static1
Behavioral task
behavioral1
Sample
2024-06-08_4668b621571f2cb47ef80c0b7468fc77_cobalt-strike_ryuk.exe
Resource
win7-20240221-en
Behavioral task
behavioral2
Sample
2024-06-08_4668b621571f2cb47ef80c0b7468fc77_cobalt-strike_ryuk.exe
Resource
win10v2004-20240508-en
General
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Target
2024-06-08_4668b621571f2cb47ef80c0b7468fc77_cobalt-strike_ryuk
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Size
674KB
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MD5
4668b621571f2cb47ef80c0b7468fc77
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SHA1
cf2ec844c673ce96a2f71e5edb866dd7a3996272
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SHA256
89d736c530874ff26dfc820e54aa948aa48d11f94ef86928e39d47e5ff75a827
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SHA512
61f17ecb4527307794f32129f33e49be65dca43f7c6f42b5dae887a99765a19b8aa138b1df4ff97622b6c5be52dace39c2032fa5cad037dff2f9289d46c20eb1
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SSDEEP
12288:azHzoZdCL6aAIse0XZ6TuqlcVGd3ZzZ8sWJDVL4jrDnuDE3aqP5WY9d:anoZdCEIse0XgTuKccd3ZzZ8sGDVYvSy
Malware Config
Signatures
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Unsigned PE 1 IoCs
Checks for missing Authenticode signature.
Processes:
resource 2024-06-08_4668b621571f2cb47ef80c0b7468fc77_cobalt-strike_ryuk
Files
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2024-06-08_4668b621571f2cb47ef80c0b7468fc77_cobalt-strike_ryuk.exe windows:6 windows x64 arch:x64
061952dae20ef82b16df5c118ec37a36
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
user32
BeginPaint
CreateWindowExW
DefWindowProcW
DestroyWindow
DialogBoxParamW
DispatchMessageW
EndDialog
EndPaint
GetMessageW
LoadAcceleratorsW
LoadCursorW
LoadIconW
LoadStringW
PostQuitMessage
RegisterClassExW
ShowWindow
TranslateAcceleratorW
TranslateMessage
UpdateWindow
kernel32
CloseHandle
CreateFileW
CreateProcessA
DeleteCriticalSection
EncodePointer
EnterCriticalSection
ExitProcess
FindClose
FindFirstFileExW
FindNextFileW
FlushFileBuffers
FreeEnvironmentStringsW
FreeLibrary
GetACP
GetCPInfo
GetCommandLineA
GetCommandLineW
GetConsoleCP
GetConsoleMode
GetCurrentProcess
GetCurrentProcessId
GetCurrentThreadId
GetEnvironmentStringsW
GetFileSizeEx
GetFileType
GetLastError
GetModuleFileNameW
GetModuleHandleExW
GetModuleHandleW
GetOEMCP
GetProcAddress
GetProcessHeap
GetStartupInfoW
GetStdHandle
GetStringTypeW
GetSystemTimeAsFileTime
HeapAlloc
HeapFree
HeapReAlloc
HeapSize
InitializeCriticalSectionAndSpinCount
InitializeSListHead
IsDebuggerPresent
IsProcessorFeaturePresent
IsValidCodePage
LCMapStringW
LeaveCriticalSection
LoadLibraryA
LoadLibraryExW
MultiByteToWideChar
QueryPerformanceCounter
RaiseException
RtlCaptureContext
RtlLookupFunctionEntry
RtlPcToFileHeader
RtlUnwindEx
RtlVirtualUnwind
SetFilePointerEx
SetLastError
SetStdHandle
SetUnhandledExceptionFilter
Sleep
TerminateProcess
TlsAlloc
TlsFree
TlsGetValue
TlsSetValue
UnhandledExceptionFilter
WideCharToMultiByte
WriteConsoleW
WriteFile
ole32
CoTaskMemAlloc
CoTaskMemFree
imm32
ImmEnumInputContext
Sections
.text Size: 103KB - Virtual size: 102KB
IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ
.rdata Size: 43KB - Virtual size: 42KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
.data Size: 3KB - Virtual size: 7KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE
.pdata Size: 5KB - Virtual size: 5KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
.00cfg Size: 512B - Virtual size: 40B
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
.gehcont Size: 512B - Virtual size: 36B
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
.voltbl Size: 512B - Virtual size: 46B
_RDATA Size: 512B - Virtual size: 244B
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
.rsrc Size: 514KB - Virtual size: 514KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
.reloc Size: 2KB - Virtual size: 1KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ