2025-01-28_a401470eac65e49052158c5432a07a1f_cobalt-strike_ryuk

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General

Target

2025-01-28_a401470eac65e49052158c5432a07a1f_cobalt-strike_ryuk
Size

2.2MB
MD5

a401470eac65e49052158c5432a07a1f
SHA1

50c1d6c5252880744a5882c6ca82af5490a80e3e
SHA256

f7fb6eef17d2f1e68b034affcfd4334644a81c821db8ce55c25fa8e3f5a3f3c6
SHA512

9c1cbfccc20f4b7c479f39261505051124c3e896b35cb6b4ac1f1b47bc47628767cd659e9f4f9cc8a7c1fd0242ad5f30437eb53b6adb10733a3e7ad3c51ef8c5
SSDEEP

24576:HtMUOrqOMgOQ1wiy36RV+iXN+7c4umCMxIFM5UXQvhacZhRv1zgZln:NMUQOgwi7RVZXNoumhxIqU0h+ln

Score

3^/10

Malware Config

Signatures

Unsigned PE 1 IoCs

Checks for missing Authenticode signature.

resource
2025-01-28_a401470eac65e49052158c5432a07a1f_cobalt-strike_ryuk

Files

2025-01-28_a401470eac65e49052158c5432a07a1f_cobalt-strike_ryuk
.exe windows:6 windows x64 arch:x64

2c10eaf6b3c08ceca26dfd97edfe4b3f

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

Imports

kernel32

CloseHandle
CreateFileA
CreateFileW
DeleteCriticalSection
EncodePointer
EnterCriticalSection
ExitProcess
FindClose
FindFirstFileExW
FindNextFileW
FlsAlloc
FlsFree
FlsGetValue
FlsSetValue
FlushFileBuffers
FreeEnvironmentStringsW
FreeLibrary
GetACP
GetCPInfo
GetCommandLineA
GetCommandLineW
GetConsoleMode
GetConsoleOutputCP
GetCurrentProcess
GetCurrentProcessId
GetCurrentThread
GetCurrentThreadId
GetEnvironmentStringsW
GetFileSizeEx
GetFileType
GetLastError
GetModuleFileNameW
GetModuleHandleExW
GetModuleHandleW
GetOEMCP
GetProcAddress
GetProcessHeap
GetStartupInfoW
GetStdHandle
GetStringTypeW
GetSystemInfo
GetSystemTimeAsFileTime
GlobalMemoryStatusEx
HeapAlloc
HeapFree
HeapReAlloc
HeapSize
InitializeCriticalSectionAndSpinCount
InitializeSListHead
IsDebuggerPresent
IsProcessorFeaturePresent
IsValidCodePage
LCMapStringW
LeaveCriticalSection
LoadLibraryA
LoadLibraryExW
MultiByteToWideChar
QueryPerformanceCounter
RaiseException
RtlAddFunctionTable
RtlCaptureContext
RtlLookupFunctionEntry
RtlPcToFileHeader
RtlUnwindEx
RtlVirtualUnwind
SetFilePointerEx
SetLastError
SetStdHandle
SetThreadContext
SetUnhandledExceptionFilter
TerminateProcess
TlsAlloc
TlsFree
TlsGetValue
TlsSetValue
UnhandledExceptionFilter
WideCharToMultiByte
WriteConsoleW
WriteFile

advapi32

RegCloseKey
RegOpenKeyExA
RegQueryValueExA

Sections

.text
Size: 93KB - Virtual size: 92KB

IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ

.rdata
Size: 2.0MB - Virtual size: 2.0MB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.data
Size: 7KB - Virtual size: 11KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

.pdata
Size: 5KB - Virtual size: 5KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.gxfg
Size: 5KB - Virtual size: 5KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.retplne
Size: 512B - Virtual size: 140B

_RDATA
Size: 512B - Virtual size: 500B

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.reloc
Size: 2KB - Virtual size: 1KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ

Sharing

General

Malware Config

Signatures

Files

2c10eaf6b3c08ceca26dfd97edfe4b3f

Headers

DLL Characteristics

File Characteristics

Imports

kernel32

advapi32

Sections

.text Size: 93KB - Virtual size: 92KB

.rdata Size: 2.0MB - Virtual size: 2.0MB

.data Size: 7KB - Virtual size: 11KB

.pdata Size: 5KB - Virtual size: 5KB

.gxfg Size: 5KB - Virtual size: 5KB

.retplne Size: 512B - Virtual size: 140B

_RDATA Size: 512B - Virtual size: 500B

.reloc Size: 2KB - Virtual size: 1KB

.text
Size: 93KB - Virtual size: 92KB

.rdata
Size: 2.0MB - Virtual size: 2.0MB

.data
Size: 7KB - Virtual size: 11KB

.pdata
Size: 5KB - Virtual size: 5KB

.gxfg
Size: 5KB - Virtual size: 5KB

.retplne
Size: 512B - Virtual size: 140B

_RDATA
Size: 512B - Virtual size: 500B

.reloc
Size: 2KB - Virtual size: 1KB