strela | 2024-12-24_0a9d0453c82cb3b844a55b060c642f02_cobalt-strike_ryuk

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General

Target
2024-12-24_0a9d0453c82cb3b844a55b060c642f02_cobalt-strike_ryuk
Size 431KB
Sample241224-nt5geswrgp
SHA256 48211afd43defedfee988ddd61304c263713532df59354592930de28806d0fd5
MD5 0a9d0453c82cb3b844a55b060c642f02
SHA1 0c259c22f9951714afa4574e0bf3d3d593f31654
SHA512 ae9c37f747ea01115660ec93af41a2a71170b2b4a8b46318bf49ae966b95cbb556e9e64e866b3e00b938729e4f38fa64f03d47e599390b853883e8d3ac3b352f
SSDEEP 12288:zlDT3p9hoBJ8zXzLbm0utC5TEy+M9korXq1CGciS:JSP8bzLV0UTxpmp
MD5 SHA1 SHA512 SSDEEP

Score

10^/10

strela

Malware Config

Signatures

Detects Strela Stealer payload 1 IoCs

resource	yara_rule
sample	family_strela

Strela family
strela

Unsigned PE 1 IoCs

Checks for missing Authenticode signature.

resource
2024-12-24_0a9d0453c82cb3b844a55b060c642f02_cobalt-strike_ryuk

File Explorer

2024-12-24_0a9d0453c82cb3b844a55b060c642f02_cobalt-strike_ryuk

.exe 431KB

2024-12-24_0a9d0453c82cb3b844a55b060c642f02_cobalt-strike_ryuk

IMPHASH 05ed3448ec65bce5f84b85b481ecbd11
SHA256 48211afd43defedfee988ddd61304c263713532df59354592930de28806d0fd5
MD5 0a9d0453c82cb3b844a55b060c642f02
SHA1 0c259c22f9951714afa4574e0bf3d3d593f31654
SHA512 ae9c37f747ea01115660ec93af41a2a71170b2b4a8b46318bf49ae966b95cbb556e9e64e866b3e00b938729e4f38fa64f03d47e599390b853883e8d3ac3b352f
SSDEEP 12288:zlDT3p9hoBJ8zXzLbm0utC5TEy+M9korXq1CGciS:JSP8bzLV0UTxpmp
MD5 SHA1 SHA512 SSDEEP

windows:6 windows x64 arch:x64

Detects Strela Stealer payload
Unsigned PE

Checks for missing Authenticode signature.

Minor OS version

Major OS version

Entry point

327448

Magic Number

523

Subsystem

IMAGE_SUBSYSTEM_WINDOWS_GUI

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

kernel32

CloseHandle CreateFileA CreateFileW CreateThread DeleteCriticalSection DeleteFileA EncodePointer EnterCriticalSection ExitProcess FindClose FindFirstFileA FindFirstFileExW FindNextFileA FindNextFileW FlsAlloc FlsFree FlsGetValue FlsSetValue FlushFileBuffers FreeEnvironmentStringsW FreeLibrary GetACP GetCPInfo GetCommandLineA GetCommandLineW GetComputerNameA GetConsoleMode GetConsoleOutputCP GetConsoleWindow GetCurrentProcess GetCurrentProcessId GetCurrentThreadId GetEnvironmentStringsW GetFileSize GetFileType GetLastError GetLocaleInfoA GetModuleFileNameW GetModuleHandleExW GetModuleHandleW GetOEMCP GetProcAddress GetProcessHeap GetStartupInfoW GetStdHandle GetStringTypeW GetSystemDirectoryA GetSystemTimeAsFileTime GetTempPathA GetVolumeNameForVolumeMountPointA HeapAlloc HeapFree HeapReAlloc HeapSize InitializeCriticalSectionAndSpinCount InitializeSListHead IsDebuggerPresent IsProcessorFeaturePresent IsValidCodePage LCMapStringW LeaveCriticalSection LoadLibraryExW LocalFree MultiByteToWideChar QueryPerformanceCounter RaiseException ReadFile RtlCaptureContext RtlLookupFunctionEntry RtlPcToFileHeader RtlUnwindEx RtlVirtualUnwind SetFilePointerEx SetLastError SetStdHandle SetUnhandledExceptionFilter Sleep TerminateProcess TlsAlloc TlsFree TlsGetValue TlsSetValue UnhandledExceptionFilter WaitForSingleObject WideCharToMultiByte WriteConsoleW WriteFile lstrcatA lstrcmpA lstrcmpiA lstrcpyA lstrlenA lstrlenW

user32

GetKeyboardLayout GetKeyboardLayoutList MessageBoxA ShowWindow wsprintfA

shell32

SHGetFolderPathA SHGetKnownFolderItem ShellExecuteExA

advapi32

RegCloseKey RegEnumKeyExA RegEnumValueA RegOpenKeyExA RegQueryInfoKeyA

ole32

CoInitialize CoTaskMemFree

crypt32

CryptUnprotectData

shlwapi

PathFileExistsA StrStrA

wininet

HttpOpenRequestA HttpSendRequestA InternetCloseHandle InternetConnectA InternetOpenA InternetReadFile

Name

.text

Size

374KB

Virtual Size

373KB

Characteristics

IMAGE_SCN_CNT_CODE IMAGE_SCN_MEM_EXECUTE IMAGE_SCN_MEM_READ

Name

.rdata

Size

40KB

Virtual Size

39KB

Characteristics

IMAGE_SCN_CNT_INITIALIZED_DATA IMAGE_SCN_MEM_READ

Name

.data

Size

3KB

Virtual Size

7KB

Characteristics

IMAGE_SCN_CNT_INITIALIZED_DATA IMAGE_SCN_MEM_READ IMAGE_SCN_MEM_WRITE

Name

.pdata

Size

4KB

Virtual Size

4KB

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

.gxfg

Size

4KB

Virtual Size

4KB

Characteristics

IMAGE_SCN_CNT_INITIALIZED_DATA IMAGE_SCN_MEM_READ

Name

.retplne

Size

512B

Virtual Size

140B

Characteristics

Name

_RDATA

Size

512B

Virtual Size

500B

Characteristics

IMAGE_SCN_CNT_INITIALIZED_DATA IMAGE_SCN_MEM_READ

Name

.rsrc

Size

512B

Virtual Size

424B

Characteristics

IMAGE_SCN_CNT_INITIALIZED_DATA IMAGE_SCN_MEM_READ

Name

.reloc

Size

2KB

Virtual Size

1KB

Characteristics

IMAGE_SCN_CNT_INITIALIZED_DATA IMAGE_SCN_MEM_DISCARDABLE IMAGE_SCN_MEM_READ

Sharing

General

Malware Config

Signatures

File Explorer

2024-12-24_0a9d0453c82cb3b844a55b060c642f02_cobalt-strike_ryuk

kernel32

user32

shell32

advapi32

ole32

crypt32

shlwapi

wininet

generic