2024-09-25_d6544fac6dbd9642075068579b93a826_cobalt-strike_ryuk

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General

Target
2024-09-25_d6544fac6dbd9642075068579b93a826_cobalt-strike_ryuk
Size 2.1MB
Sample240925-jk2lystbrm
SHA256 2e34bf4b6fc8bb31bb8b48b245a489858a6610ddd87437f181b8665babd1bd03
MD5 d6544fac6dbd9642075068579b93a826
SHA1 299d7d252023bc0729b443f74f95cfe6da9b83c7
SHA512 dd41b5ceb04c445ee288fb6a51d6db11f8167c4ea1b5368005333b73d593217496e1c7cb71d5139ecda14f5601868ecf05caf8a59ebc046084bed2610744b0f3
SSDEEP 49152:juYk3H5koUXfTqkkYLO/W2buywzMbOX+T7z5ZaB0zj0yjoB2:jPfTqi90bsB2Yyjl
MD5 SHA1 SHA512 SSDEEP

Score

3^/10

Malware Config

Signatures

Unsigned PE 1 IoCs

Checks for missing Authenticode signature.

resource
2024-09-25_d6544fac6dbd9642075068579b93a826_cobalt-strike_ryuk

File Explorer

2024-09-25_d6544fac6dbd9642075068579b93a826_cobalt-strike_ryuk

.exe 2.1MB

2024-09-25_d6544fac6dbd9642075068579b93a826_cobalt-strike_ryuk

IMPHASH 9637f27d661ecb5287f52f7cec8ae4c0
SHA256 2e34bf4b6fc8bb31bb8b48b245a489858a6610ddd87437f181b8665babd1bd03
MD5 d6544fac6dbd9642075068579b93a826
SHA1 299d7d252023bc0729b443f74f95cfe6da9b83c7
SHA512 dd41b5ceb04c445ee288fb6a51d6db11f8167c4ea1b5368005333b73d593217496e1c7cb71d5139ecda14f5601868ecf05caf8a59ebc046084bed2610744b0f3
SSDEEP 49152:juYk3H5koUXfTqkkYLO/W2buywzMbOX+T7z5ZaB0zj0yjoB2:jPfTqi90bsB2Yyjl
MD5 SHA1 SHA512 SSDEEP

Unsigned PE

Checks for missing Authenticode signature.

Minor OS version

Major OS version

Entry point

592480

Magic Number

523

Subsystem

IMAGE_SUBSYSTEM_WINDOWS_GUI

DLL Characteristics

IMAGE_DLLCHARACTERISTICS_HIGH_ENTROPY_VA IMAGE_DLLCHARACTERISTICS_NX_COMPAT IMAGE_DLLCHARACTERISTICS_TERMINAL_SERVER_AWARE

File Characteristics

IMAGE_FILE_EXECUTABLE_IMAGE IMAGE_FILE_LARGE_ADDRESS_AWARE

PDB paths

elevation_service.exe.pdb

kernel32

AcquireSRWLockExclusive AcquireSRWLockShared AssignProcessToJobObject CloseHandle CompareStringW CreateDirectoryW CreateEventW CreateFileW CreateProcessW CreateThread DecodePointer DeleteCriticalSection DeleteFileW DeleteProcThreadAttributeList DuplicateHandle EncodePointer EnterCriticalSection EnumSystemLocalesW ExitProcess ExitThread ExpandEnvironmentStringsW FindClose FindFirstFileExW FindNextFileW FlsAlloc FlsSetValue FlushFileBuffers FormatMessageA FreeEnvironmentStringsW FreeLibrary FreeLibraryAndExitThread GetACP GetCPInfo GetCommandLineA GetCommandLineW GetConsoleMode GetConsoleOutputCP GetCurrentDirectoryW GetCurrentProcess GetCurrentProcessId GetCurrentThread GetCurrentThreadId GetDateFormatW GetDriveTypeW GetEnvironmentStringsW GetEnvironmentVariableW GetExitCodeProcess GetFileAttributesW GetFileSizeEx GetFileType GetFullPathNameW GetLastError GetLocalTime GetLocaleInfoW GetModuleFileNameW GetModuleHandleA GetModuleHandleExW GetModuleHandleW GetNativeSystemInfo GetOEMCP GetProcAddress GetProcessHeap GetProcessId GetProductInfo GetStartupInfoW GetStdHandle GetStringTypeW GetSystemDirectoryW GetSystemInfo GetSystemTimeAsFileTime GetTempPathW GetThreadId GetThreadPriority GetTimeFormatW GetTimeZoneInformation GetUserDefaultLCID GetVersionExW GetWindowsDirectoryW HeapAlloc HeapDestroy HeapFree HeapReAlloc HeapSetInformation HeapSize InitOnceExecuteOnce InitializeCriticalSectionAndSpinCount InitializeCriticalSectionEx InitializeProcThreadAttributeList InitializeSListHead InitializeSRWLock IsDebuggerPresent IsProcessorFeaturePresent IsValidCodePage IsValidLocale IsWow64Process LCMapStringW LeaveCriticalSection LoadLibraryExA LoadLibraryExW LoadLibraryW LocalFree MoveFileExW MultiByteToWideChar OpenProcess OutputDebugStringA OutputDebugStringW PostQueuedCompletionStatus QueryPerformanceCounter QueryPerformanceFrequency QueryThreadCycleTime RaiseException ReadConsoleW ReadFile ReleaseSRWLockExclusive ReleaseSRWLockShared RemoveDirectoryW ResetEvent RtlCaptureContext RtlCaptureStackBackTrace RtlLookupFunctionEntry RtlPcToFileHeader RtlUnwind RtlUnwindEx RtlVirtualUnwind SetCurrentDirectoryW SetEndOfFile SetEnvironmentVariableW SetEvent SetFileAttributesW SetFilePointer SetFilePointerEx SetFileTime SetHandleInformation SetLastError SetStdHandle SetThreadPriority SetUnhandledExceptionFilter Sleep SleepConditionVariableSRW SystemTimeToFileTime TerminateProcess TlsAlloc TlsFree TlsGetValue TlsSetValue TryAcquireSRWLockExclusive TzSpecificLocalTimeToSystemTime UnhandledExceptionFilter UnregisterWaitEx UpdateProcThreadAttribute VerSetConditionMask VerifyVersionInfoW VirtualAlloc VirtualFree VirtualProtect VirtualQuery WaitForSingleObject WaitForSingleObjectEx WakeAllConditionVariable WakeConditionVariable WideCharToMultiByte WriteConsoleW WriteFile lstrcmpiW

Name

.text

Size

1.3MB

Virtual Size

1.3MB

Characteristics

IMAGE_SCN_CNT_CODE IMAGE_SCN_MEM_EXECUTE IMAGE_SCN_MEM_READ

Name

.rdata

Size

195KB

Virtual Size

194KB

Characteristics

IMAGE_SCN_CNT_INITIALIZED_DATA IMAGE_SCN_MEM_READ

Name

.data

Size

14KB

Virtual Size

48KB

Characteristics

IMAGE_SCN_CNT_INITIALIZED_DATA IMAGE_SCN_MEM_READ IMAGE_SCN_MEM_WRITE

Name

.pdata

Size

39KB

Virtual Size

38KB

Characteristics

IMAGE_SCN_CNT_INITIALIZED_DATA IMAGE_SCN_MEM_READ

Name

.00cfg

Size

512B

Virtual Size

40B

Characteristics

IMAGE_SCN_CNT_INITIALIZED_DATA IMAGE_SCN_MEM_READ

Name

.retplne

Size

512B

Virtual Size

12B

Characteristics

Name

.tls

Size

512B

Virtual Size

305B

Characteristics

IMAGE_SCN_CNT_INITIALIZED_DATA IMAGE_SCN_MEM_READ IMAGE_SCN_MEM_WRITE

Name

_RDATA

Size

512B

Virtual Size

244B

Characteristics

IMAGE_SCN_CNT_INITIALIZED_DATA IMAGE_SCN_MEM_READ

Name

.rsrc

Size

7KB

Virtual Size

6KB

Characteristics

IMAGE_SCN_CNT_INITIALIZED_DATA IMAGE_SCN_MEM_READ

Name

.reloc

Size

572KB

Virtual Size

576KB

Characteristics

IMAGE_SCN_CNT_INITIALIZED_DATA IMAGE_SCN_MEM_DISCARDABLE IMAGE_SCN_MEM_EXECUTE IMAGE_SCN_MEM_READ IMAGE_SCN_MEM_WRITE

Sharing

General

Malware Config

Signatures

File Explorer

2024-09-25_d6544fac6dbd9642075068579b93a826_cobalt-strike_ryuk

kernel32

generic