2024-03-27_f3e9e5fe20a7aea46f3e29e9051ca0a2_cobalt-strike_ryuk

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General

Target

2024-03-27_f3e9e5fe20a7aea46f3e29e9051ca0a2_cobalt-strike_ryuk
Size

602KB
MD5

f3e9e5fe20a7aea46f3e29e9051ca0a2
SHA1

ac9a2703156b608e2c69a110d932da7b4ed9616f
SHA256

72fea2826c9800607b51e9964c5b3b964ded7c87d231b53b1f58092eafd8c0b7
SHA512

617d3911338b0320f3f50628db92bffc310e5d017e4d2502df8d4fb430541da05955233a57df94f545e9d5fc7a542af063683ca5435e323bb622be0e899c1c3b
SSDEEP

12288:nJyZZbNMaVBEyZh7261NKAsWNIoMlS9xspa59SvCXzcqK:JyZBxVBfv1sWNI+spAS6XzcqK

Score

3^/10

Malware Config

Signatures

Unsigned PE 1 IoCs

Checks for missing Authenticode signature.

resource
2024-03-27_f3e9e5fe20a7aea46f3e29e9051ca0a2_cobalt-strike_ryuk

Files

2024-03-27_f3e9e5fe20a7aea46f3e29e9051ca0a2_cobalt-strike_ryuk
.exe windows:6 windows x64 arch:x64

e6ced9f674559bd358c1fff5ccf4ef47

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

PDB Paths

C:\tmp\Crypt\LLVMO-Release\x64\Crypt.pdb

Imports

kernel32

AcquireSRWLockExclusive
AllocConsole
CloseHandle
CompareStringW
CreateEventW
CreateFileW
CreateProcessA
CreateProcessW
DecodePointer
DeleteCriticalSection
EncodePointer
EnterCriticalSection
EnumSystemLocalesW
ExitProcess
FindClose
FindFirstFileExW
FindNextFileW
FlushFileBuffers
FreeConsole
FreeEnvironmentStringsW
FreeLibrary
GetACP
GetCPInfo
GetCommandLineA
GetCommandLineW
GetConsoleMode
GetConsoleOutputCP
GetCurrentProcess
GetCurrentProcessId
GetCurrentThreadId
GetEnvironmentStringsW
GetExitCodeProcess
GetFileAttributesExW
GetFileSizeEx
GetFileType
GetLastError
GetLocaleInfoW
GetModuleFileNameA
GetModuleFileNameW
GetModuleHandleExW
GetModuleHandleW
GetOEMCP
GetProcAddress
GetProcessHeap
GetStartupInfoW
GetStdHandle
GetStringTypeW
GetSystemTime
GetSystemTimeAsFileTime
GetThreadContext
GetUserDefaultLCID
HeapAlloc
HeapFree
HeapReAlloc
HeapSize
InitializeCriticalSectionAndSpinCount
InitializeCriticalSectionEx
InitializeSListHead
InitializeSRWLock
IsDebuggerPresent
IsProcessorFeaturePresent
IsValidCodePage
IsValidLocale
LCMapStringEx
LCMapStringW
LeaveCriticalSection
LoadLibraryExW
MultiByteToWideChar
QueryPerformanceCounter
QueryPerformanceFrequency
RaiseException
ReadConsoleW
ReadFile
ReleaseSRWLockExclusive
ResetEvent
ResumeThread
RtlCaptureContext
RtlLookupFunctionEntry
RtlPcToFileHeader
RtlUnwind
RtlUnwindEx
RtlVirtualUnwind
SetEndOfFile
SetEnvironmentVariableW
SetEvent
SetFilePointerEx
SetLastError
SetStdHandle
SetThreadContext
SetUnhandledExceptionFilter
Sleep
TerminateProcess
TlsAlloc
TlsFree
TlsGetValue
TlsSetValue
TryEnterCriticalSection
UnhandledExceptionFilter
VirtualAlloc
VirtualAllocEx
WaitForSingleObject
WaitForSingleObjectEx
WideCharToMultiByte
WriteConsoleW
WriteFile
WriteProcessMemory

user32

FindWindowA
ShowWindow

shell32

ShellExecuteA

Sections

.text
Size: 329KB - Virtual size: 328KB

IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ

.rdata
Size: 73KB - Virtual size: 73KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.data
Size: 183KB - Virtual size: 194KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

.pdata
Size: 10KB - Virtual size: 10KB

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: 84B

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.tls
Size: 512B - Virtual size: 9B

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

_RDATA
Size: 512B - Virtual size: 244B

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.rsrc
Size: 512B - Virtual size: 424B

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

Sharing

General

Malware Config

Signatures

Files

e6ced9f674559bd358c1fff5ccf4ef47

Headers

DLL Characteristics

File Characteristics

PDB Paths

Imports

kernel32

user32

shell32

Sections

.text Size: 329KB - Virtual size: 328KB

.rdata Size: 73KB - Virtual size: 73KB

.data Size: 183KB - Virtual size: 194KB

.pdata Size: 10KB - Virtual size: 10KB

.00cfg Size: 512B - Virtual size: 40B

.gehcont Size: 512B - Virtual size: 84B

.tls Size: 512B - Virtual size: 9B

_RDATA Size: 512B - Virtual size: 244B

.rsrc Size: 512B - Virtual size: 424B

.reloc Size: 2KB - Virtual size: 2KB

.text
Size: 329KB - Virtual size: 328KB

.rdata
Size: 73KB - Virtual size: 73KB

.data
Size: 183KB - Virtual size: 194KB

.pdata
Size: 10KB - Virtual size: 10KB

.00cfg
Size: 512B - Virtual size: 40B

.gehcont
Size: 512B - Virtual size: 84B

.tls
Size: 512B - Virtual size: 9B

_RDATA
Size: 512B - Virtual size: 244B

.rsrc
Size: 512B - Virtual size: 424B

.reloc
Size: 2KB - Virtual size: 2KB