2024-08-23_3befb5b4aaf041eff2616417987dce10_cobalt-strike_ryuk

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General

Target
2024-08-23_3befb5b4aaf041eff2616417987dce10_cobalt-strike_ryuk
Size 6.2MB
Sample240823-ax2caaydjq
SHA256 12f3d087b535db0d9200bda9603661ed6e820847d6413711df9db8ce2c17b513
MD5 3befb5b4aaf041eff2616417987dce10
SHA1 685b5fec3a862c5107966c36cf2f51b1be9f9109
SHA512 a8580475515327272347492e01a0c1aa6accc6eb727ed8a6aaa1c16c0587345f3af77316e8f6ff4cfff95bfcab00961231014cb1f48b4617916ec41369e411ec
SSDEEP 196608:zzM2c3kqQbrANZvTE2l6sFYSK0Xlscn/G2:zz2Ob+ZIEFFYN0XlsyG2
MD5 SHA1 SHA512 SSDEEP

Score

3^/10

Malware Config

Signatures

Unsigned PE 1 IoCs

Checks for missing Authenticode signature.

resource
2024-08-23_3befb5b4aaf041eff2616417987dce10_cobalt-strike_ryuk

File Explorer

2024-08-23_3befb5b4aaf041eff2616417987dce10_cobalt-strike_ryuk

.exe 6.2MB

2024-08-23_3befb5b4aaf041eff2616417987dce10_cobalt-strike_ryuk

IMPHASH 9a9448e5e556daeceacaf0a390d2a953
SHA256 12f3d087b535db0d9200bda9603661ed6e820847d6413711df9db8ce2c17b513
MD5 3befb5b4aaf041eff2616417987dce10
SHA1 685b5fec3a862c5107966c36cf2f51b1be9f9109
SHA512 a8580475515327272347492e01a0c1aa6accc6eb727ed8a6aaa1c16c0587345f3af77316e8f6ff4cfff95bfcab00961231014cb1f48b4617916ec41369e411ec
SSDEEP 196608:zzM2c3kqQbrANZvTE2l6sFYSK0Xlscn/G2:zz2Ob+ZIEFFYN0XlsyG2
MD5 SHA1 SHA512 SSDEEP

Unsigned PE

Checks for missing Authenticode signature.

Minor OS version

Major OS version

Entry point

108380

Magic Number

523

Subsystem

IMAGE_SUBSYSTEM_WINDOWS_CUI

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

shell32

SHFileOperationW SHGetFolderPathW

kernel32

CloseHandle CompareStringW CreateDirectoryW CreateFileMappingW CreateFileW CreateProcessW DeleteCriticalSection EncodePointer EnterCriticalSection ExitProcess FindClose FindFirstFileExW FindNextFileW FindResourceA FlsAlloc FlsFree FlsGetValue FlsSetValue FlushFileBuffers FormatMessageA FreeEnvironmentStringsW FreeLibrary GenerateConsoleCtrlEvent GetACP GetCPInfo GetCommandLineA GetCommandLineW GetConsoleMode GetConsoleOutputCP GetCurrentProcess GetCurrentProcessId GetCurrentThreadId GetEnvironmentStringsW GetEnvironmentVariableW GetExitCodeProcess GetFileAttributesW GetFileSize GetFileSizeEx GetFileType GetLastError GetModuleFileNameW GetModuleHandleA GetModuleHandleExW GetModuleHandleW GetOEMCP GetProcAddress GetProcessHeap GetProcessId GetStartupInfoW GetStdHandle GetStringTypeW GetSystemTimeAsFileTime GetTempPathW HeapAlloc HeapFree HeapReAlloc HeapSize InitializeCriticalSectionAndSpinCount InitializeCriticalSectionEx InitializeSListHead IsDebuggerPresent IsProcessorFeaturePresent IsValidCodePage LCMapStringW LeaveCriticalSection LoadLibraryExW LoadResource LockResource MapViewOfFile MultiByteToWideChar QueryPerformanceCounter RaiseException ReadFile RtlCaptureContext RtlLookupFunctionEntry RtlPcToFileHeader RtlUnwindEx RtlVirtualUnwind SetConsoleCtrlHandler SetEnvironmentVariableW SetFilePointerEx SetLastError SetStdHandle SetUnhandledExceptionFilter SizeofResource Sleep TerminateProcess TlsAlloc TlsFree TlsGetValue TlsSetValue UnhandledExceptionFilter UnmapViewOfFile VirtualProtect WaitForSingleObject WideCharToMultiByte WriteConsoleW WriteFile

Name

.text

Size

189KB

Virtual Size

189KB

Characteristics

IMAGE_SCN_CNT_CODE IMAGE_SCN_MEM_EXECUTE IMAGE_SCN_MEM_READ

Name

.rdata

Size

75KB

Virtual Size

75KB

Characteristics

IMAGE_SCN_CNT_INITIALIZED_DATA IMAGE_SCN_MEM_READ

Name

.data

Size

19KB

Virtual Size

99KB

Characteristics

IMAGE_SCN_CNT_INITIALIZED_DATA IMAGE_SCN_MEM_READ IMAGE_SCN_MEM_WRITE

Name

.pdata

Size

7KB

Virtual Size

6KB

Characteristics

IMAGE_SCN_CNT_INITIALIZED_DATA IMAGE_SCN_MEM_READ

Name

.00cfg

Size

512B

Virtual Size

56B

Characteristics

IMAGE_SCN_CNT_INITIALIZED_DATA IMAGE_SCN_MEM_READ

Name

.fptable

Size

512B

Virtual Size

256B

Characteristics

IMAGE_SCN_CNT_INITIALIZED_DATA IMAGE_SCN_MEM_READ IMAGE_SCN_MEM_WRITE

Name

_RDATA

Size

512B

Virtual Size

500B

Characteristics

IMAGE_SCN_CNT_INITIALIZED_DATA IMAGE_SCN_MEM_READ

Name

.rsrc

Size

5.9MB

Virtual Size

5.9MB

Characteristics

IMAGE_SCN_CNT_INITIALIZED_DATA IMAGE_SCN_MEM_READ

Name

.reloc

Size

6KB

Virtual Size

5KB

Characteristics

IMAGE_SCN_CNT_INITIALIZED_DATA IMAGE_SCN_MEM_DISCARDABLE IMAGE_SCN_MEM_READ

Sharing

General

Malware Config

Signatures

File Explorer

2024-08-23_3befb5b4aaf041eff2616417987dce10_cobalt-strike_ryuk

shell32

kernel32

generic