2025-02-02_37c5e2de42bc44f855e4316f85b5ed8d_cobalt-strike_ryuk

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General

Target

2025-02-02_37c5e2de42bc44f855e4316f85b5ed8d_cobalt-strike_ryuk
Size

1.1MB
MD5

37c5e2de42bc44f855e4316f85b5ed8d
SHA1

a8743e31caac1fbb101646d43f9ce7d5479567ad
SHA256

7d955bb75c0eb8d8c50d911cfb6320df0c7af260d16522c71b5a8e8f52d121c4
SHA512

5a3a37ef1c204c8a55d324f6fe96a949f685aa28d11b64c949710369a9ed31d380422a6922eca8c71002922f6e1417996b33fa39d66cd6c9484f66408697a81f
SSDEEP

24576:Eec44mam9NMNfs5KpQnBOeC+aMQNo/80:Z4hmq05KpQnB++CWr

Score

3^/10

Malware Config

Signatures

Unsigned PE 1 IoCs

Checks for missing Authenticode signature.

resource
2025-02-02_37c5e2de42bc44f855e4316f85b5ed8d_cobalt-strike_ryuk

Files

2025-02-02_37c5e2de42bc44f855e4316f85b5ed8d_cobalt-strike_ryuk
.exe windows:4 windows x64 arch:x64

47e316152797bf70b32b01d5af8ac291

Headers

DLL Characteristics

IMAGE_DLLCHARACTERISTICS_HIGH_ENTROPY_VA
IMAGE_DLLCHARACTERISTICS_DYNAMIC_BASE
IMAGE_DLLCHARACTERISTICS_NX_COMPAT

File Characteristics

IMAGE_FILE_EXECUTABLE_IMAGE
IMAGE_FILE_LARGE_ADDRESS_AWARE

Imports

kernel32

CloseHandle
CompareStringW
CreateFileW
DeleteCriticalSection
EncodePointer
EnterCriticalSection
EnumSystemLocalesW
ExitProcess
FindClose
FindFirstFileExW
FindNextFileW
FlsAlloc
FlsFree
FlsGetValue
FlsSetValue
FlushFileBuffers
FreeEnvironmentStringsW
FreeLibrary
GetACP
GetCPInfo
GetCommandLineA
GetCommandLineW
GetConsoleMode
GetConsoleOutputCP
GetCurrentProcess
GetCurrentProcessId
GetCurrentThread
GetCurrentThreadId
GetDateFormatW
GetEnvironmentStringsW
GetFileSizeEx
GetFileType
GetLastError
GetLocaleInfoW
GetModuleFileNameW
GetModuleHandleExW
GetModuleHandleW
GetOEMCP
GetProcAddress
GetProcessHeap
GetStartupInfoW
GetStdHandle
GetStringTypeW
GetSystemTimeAsFileTime
GetTempPathW
GetTimeFormatW
GetUserDefaultLCID
HeapAlloc
HeapFree
HeapReAlloc
HeapSize
InitializeCriticalSectionAndSpinCount
InitializeCriticalSectionEx
InitializeSListHead
InterlockedFlushSList
InterlockedPushEntrySList
IsDebuggerPresent
IsProcessorFeaturePresent
IsThreadAFiber
IsValidCodePage
IsValidLocale
LCMapStringW
LeaveCriticalSection
LoadLibraryExW
MultiByteToWideChar
OutputDebugStringW
QueryPerformanceCounter
RaiseException
ReadConsoleW
ReadFile
RtlCaptureContext
RtlLookupFunctionEntry
RtlPcToFileHeader
RtlUnwind
RtlUnwindEx
RtlVirtualUnwind
SetConsoleCtrlHandler
SetEnvironmentVariableW
SetFilePointerEx
SetLastError
SetStdHandle
SetUnhandledExceptionFilter
TerminateProcess
TlsAlloc
TlsFree
TlsGetValue
TlsSetValue
UnhandledExceptionFilter
VirtualProtect
WideCharToMultiByte
WriteConsoleW
WriteFile

Sections

.text
Size: 745KB - Virtual size: 744KB

IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ

.rdata
Size: 90KB - Virtual size: 90KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.data
Size: 255KB - Virtual size: 263KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

.pdata
Size: 24KB - Virtual size: 24KB

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

_RDATA
Size: 1024B - Virtual size: 640B

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

_guard_c
Size: 512B - Virtual size: 36B

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

_guard_d
Size: 512B - Virtual size: 36B

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

memcpy_
Size: 512B - Virtual size: 264B

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

.rsrc
Size: 512B - Virtual size: 436B

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

Sharing

General

Malware Config

Signatures

Files

47e316152797bf70b32b01d5af8ac291

Headers

DLL Characteristics

File Characteristics

Imports

kernel32

Sections

.text Size: 745KB - Virtual size: 744KB

.rdata Size: 90KB - Virtual size: 90KB

.data Size: 255KB - Virtual size: 263KB

.pdata Size: 24KB - Virtual size: 24KB

.fptable Size: 512B - Virtual size: 256B

_RDATA Size: 1024B - Virtual size: 640B

_guard_c Size: 512B - Virtual size: 36B

_guard_d Size: 512B - Virtual size: 36B

memcpy_ Size: 512B - Virtual size: 264B

.rsrc Size: 512B - Virtual size: 436B

.reloc Size: 4KB - Virtual size: 4KB

.text
Size: 745KB - Virtual size: 744KB

.rdata
Size: 90KB - Virtual size: 90KB

.data
Size: 255KB - Virtual size: 263KB

.pdata
Size: 24KB - Virtual size: 24KB

.fptable
Size: 512B - Virtual size: 256B

_RDATA
Size: 1024B - Virtual size: 640B

_guard_c
Size: 512B - Virtual size: 36B

_guard_d
Size: 512B - Virtual size: 36B

memcpy_
Size: 512B - Virtual size: 264B

.rsrc
Size: 512B - Virtual size: 436B

.reloc
Size: 4KB - Virtual size: 4KB