2024-10-21_393e33110ee192b6bea5d2433bbe1fb1_cobalt-strike_ryuk

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General

Target
2024-10-21_393e33110ee192b6bea5d2433bbe1fb1_cobalt-strike_ryuk
Size 2.2MB
Sample241021-llyb2aydnc
SHA256 962e764591d0113527c2030305c972f75b31b1659ee8d2ccdc1fc25af0fe3133
MD5 393e33110ee192b6bea5d2433bbe1fb1
SHA1 489bddd76747e6d7b5d8b2c2426693c22194c09c
SHA512 5af39e5597b4cb3b231440409f26e257cc13192c25e1f59390b6fa6db31583b51681a89c8a1460e4d5555eed1e3be035f321a0deb91bc6d4bbe593d369bd0ae0
SSDEEP 49152:KfzabJ8llj+SWPi2mkx+X+di6ErvL73RLSo+2fhl:PHi2arvvRe12fD
MD5 SHA1 SHA512 SSDEEP

Score

3^/10

Malware Config

Signatures

Unsigned PE 1 IoCs

Checks for missing Authenticode signature.

resource
2024-10-21_393e33110ee192b6bea5d2433bbe1fb1_cobalt-strike_ryuk

File Explorer

2024-10-21_393e33110ee192b6bea5d2433bbe1fb1_cobalt-strike_ryuk

.exe 2.2MB

2024-10-21_393e33110ee192b6bea5d2433bbe1fb1_cobalt-strike_ryuk

IMPHASH c6d818f852d644d1a7167175af3f2f9b
SHA256 962e764591d0113527c2030305c972f75b31b1659ee8d2ccdc1fc25af0fe3133
MD5 393e33110ee192b6bea5d2433bbe1fb1
SHA1 489bddd76747e6d7b5d8b2c2426693c22194c09c
SHA512 5af39e5597b4cb3b231440409f26e257cc13192c25e1f59390b6fa6db31583b51681a89c8a1460e4d5555eed1e3be035f321a0deb91bc6d4bbe593d369bd0ae0
SSDEEP 49152:KfzabJ8llj+SWPi2mkx+X+di6ErvL73RLSo+2fhl:PHi2arvvRe12fD
MD5 SHA1 SHA512 SSDEEP

windows:5 windows x64 arch:x64

Unsigned PE

Checks for missing Authenticode signature.

Minor OS version

Major OS version

Entry point

559568

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

chrome_pwa_launcher.exe.pdb

advapi32

CreateProcessAsUserW EventRegister EventUnregister EventWrite RegCloseKey RegCreateKeyExW RegOpenKeyExW RegQueryValueExW RegSetValueExW SystemFunction036

kernel32

AcquireSRWLockExclusive AssignProcessToJobObject CloseHandle CompareStringW CreateEventW CreateFileW CreateProcessW CreateThread DeleteCriticalSection DeleteFileW DeleteProcThreadAttributeList DuplicateHandle EncodePointer EnterCriticalSection EnumSystemLocalesW ExitProcess ExitThread ExpandEnvironmentStringsW FindClose FindFirstFileExW FindNextFileW FlsAlloc FlsFree FlsGetValue FlsSetValue FlushFileBuffers FormatMessageA FreeEnvironmentStringsW FreeLibrary FreeLibraryAndExitThread GetACP GetCPInfo GetCommandLineA GetCommandLineW GetConsoleMode GetConsoleOutputCP GetCurrentDirectoryW GetCurrentProcess GetCurrentProcessId GetCurrentThread GetCurrentThreadId GetDateFormatW GetDriveTypeW GetEnvironmentStringsW GetEnvironmentVariableW GetExitCodeProcess GetFileAttributesW GetFileInformationByHandle 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 GetTickCount GetTimeFormatW GetTimeZoneInformation GetUserDefaultLCID GetVersionExW GetWindowsDirectoryW InitOnceExecuteOnce InitializeCriticalSectionAndSpinCount InitializeProcThreadAttributeList InitializeSListHead IsDebuggerPresent IsProcessorFeaturePresent IsValidCodePage IsValidLocale IsWow64Process LCMapStringW LeaveCriticalSection LoadLibraryExA LoadLibraryExW LocalFree MultiByteToWideChar OutputDebugStringA QueryPerformanceCounter QueryPerformanceFrequency QueryThreadCycleTime RaiseException ReadConsoleW ReadFile ReleaseSRWLockExclusive ResetEvent RtlCaptureContext RtlCaptureStackBackTrace RtlLookupFunctionEntry RtlPcToFileHeader RtlUnwind RtlUnwindEx RtlVirtualUnwind SetEndOfFile SetEnvironmentVariableW SetEvent SetFilePointerEx SetHandleInformation SetLastError SetStdHandle SetThreadPriority SetUnhandledExceptionFilter Sleep SleepConditionVariableSRW TerminateProcess TlsAlloc TlsFree TlsGetValue TlsSetValue TryAcquireSRWLockExclusive UnhandledExceptionFilter UnregisterWaitEx UpdateProcThreadAttribute VerSetConditionMask VerifyVersionInfoW VirtualAlloc VirtualFree VirtualProtect VirtualQuery WaitForSingleObject WaitForSingleObjectEx WakeAllConditionVariable WakeConditionVariable WideCharToMultiByte WriteConsoleW WriteFile lstrcmpiW

shell32

CommandLineToArgvW SHGetFolderPathW SHGetKnownFolderPath ShellExecuteExW

userenv

CreateEnvironmentBlock DestroyEnvironmentBlock

user32

AllowSetForegroundWindow GetActiveWindow

winmm

timeGetTime

ole32

CoInitializeEx CoRegisterInitializeSpy CoRevokeInitializeSpy CoTaskMemFree CoUninitialize

Name

.text

Size

963KB

Virtual Size

963KB

Characteristics

IMAGE_SCN_CNT_CODE IMAGE_SCN_MEM_EXECUTE IMAGE_SCN_MEM_READ

Name

.rdata

Size

260KB

Virtual Size

260KB

Characteristics

IMAGE_SCN_CNT_INITIALIZED_DATA IMAGE_SCN_MEM_READ

Name

.data

Size

61KB

Virtual Size

109KB

Characteristics

IMAGE_SCN_CNT_INITIALIZED_DATA IMAGE_SCN_MEM_READ IMAGE_SCN_MEM_WRITE

Name

.pdata

Size

29KB

Virtual Size

29KB

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

.gxfg

Size

11KB

Virtual Size

10KB

Characteristics

IMAGE_SCN_CNT_INITIALIZED_DATA IMAGE_SCN_MEM_READ

Name

.retplne

Size

512B

Virtual Size

120B

Characteristics

Name

.tls

Size

512B

Virtual Size

297B

Characteristics

IMAGE_SCN_CNT_INITIALIZED_DATA IMAGE_SCN_MEM_READ IMAGE_SCN_MEM_WRITE

Name

.voltbl

Size

512B

Virtual Size

68B

Characteristics

Name

_RDATA

Size

512B

Virtual Size

244B

Characteristics

IMAGE_SCN_CNT_INITIALIZED_DATA IMAGE_SCN_MEM_READ

Name

.rsrc

Size

324KB

Virtual Size

323KB

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

2024-10-21_393e33110ee192b6bea5d2433bbe1fb1_cobalt-strike_ryuk

advapi32

kernel32

shell32

userenv

user32

winmm

ole32

generic