2025-01-01_1917033c467904401297fa6d5494dc84_cobalt-strike_ryuk

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General

Target

2025-01-01_1917033c467904401297fa6d5494dc84_cobalt-strike_ryuk
Size

12.5MB
MD5

1917033c467904401297fa6d5494dc84
SHA1

7e8251c9c7797b47e38cc5dc282a72a9cf47d986
SHA256

d83253fb5693a9849d48f985f994fb174e062bad3bca65a3e517731dde7b481d
SHA512

c2f476ccaf96efc44d60bcbdc8460840edcdccdf62d685ee605930a6fcf4fd32da2aec193b6859200e5df66c28e3c06731d71edf5999406ce7a327c879dddbd1
SSDEEP

393216:CPmSBea+Tewplws0UscyIxCnsxSUa61Qk:KmSElTewpllxCn/U1

Score

3^/10

Malware Config

Signatures

Unsigned PE 1 IoCs

Checks for missing Authenticode signature.

resource
2025-01-01_1917033c467904401297fa6d5494dc84_cobalt-strike_ryuk

Files

2025-01-01_1917033c467904401297fa6d5494dc84_cobalt-strike_ryuk
.exe windows:4 windows x64 arch:x64

7bb4e8cef6a9f350a8f5dc71e7b3773c

Headers

DLL Characteristics

IMAGE_DLLCHARACTERISTICS_HIGH_ENTROPY_VA
IMAGE_DLLCHARACTERISTICS_DYNAMIC_BASE
IMAGE_DLLCHARACTERISTICS_NX_COMPAT

File Characteristics

IMAGE_FILE_EXECUTABLE_IMAGE
IMAGE_FILE_LARGE_ADDRESS_AWARE

Imports

kernel32

AcquireSRWLockExclusive
CloseHandle
CreateFileW
DecodePointer
DeleteCriticalSection
EncodePointer
EnterCriticalSection
EnumSystemLocalesW
ExitProcess
FindClose
FindFirstFileExW
FindNextFileW
FlsAlloc
FlsFree
FlsGetValue
FlsSetValue
FlushFileBuffers
FreeEnvironmentStringsW
FreeLibrary
GetACP
GetCPInfo
GetCommandLineA
GetCommandLineW
GetConsoleMode
GetConsoleOutputCP
GetCurrentProcess
GetCurrentProcessId
GetCurrentThreadId
GetEnvironmentStringsW
GetFileType
GetLastError
GetLocaleInfoW
GetModuleFileNameW
GetModuleHandleExW
GetModuleHandleW
GetOEMCP
GetProcAddress
GetProcessHeap
GetStartupInfoW
GetStdHandle
GetStringTypeW
GetSystemTimeAsFileTime
GetUserDefaultLCID
HeapAlloc
HeapFree
HeapReAlloc
HeapSize
InitializeCriticalSectionAndSpinCount
InitializeCriticalSectionEx
InitializeSListHead
IsDebuggerPresent
IsProcessorFeaturePresent
IsValidCodePage
IsValidLocale
LCMapStringEx
LCMapStringW
LeaveCriticalSection
LoadLibraryExW
MultiByteToWideChar
QueryPerformanceCounter
RaiseException
ReleaseSRWLockExclusive
RtlCaptureContext
RtlLookupFunctionEntry
RtlPcToFileHeader
RtlUnwindEx
RtlVirtualUnwind
SetFilePointerEx
SetLastError
SetStdHandle
SetUnhandledExceptionFilter
SleepConditionVariableSRW
TerminateProcess
TlsAlloc
TlsFree
TlsGetValue
TlsSetValue
UnhandledExceptionFilter
VirtualProtect
WakeAllConditionVariable
WideCharToMultiByte
WriteConsoleW
WriteFile

Sections

.text
Size: 423KB - Virtual size: 422KB

IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ

.rdata
Size: 10.5MB - Virtual size: 10.5MB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.data
Size: 1.3MB - Virtual size: 1.3MB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

.pdata
Size: 17KB - Virtual size: 17KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.fptable
Size: 512B - Virtual size: 256B

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

.tls
Size: 512B - Virtual size: 9B

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

_RDATA
Size: 1024B - Virtual size: 640B

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.rsrc
Size: 512B - Virtual size: 436B

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.reloc
Size: 309KB - Virtual size: 309KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ

Sharing

General

Malware Config

Signatures

Files

7bb4e8cef6a9f350a8f5dc71e7b3773c

Headers

DLL Characteristics

File Characteristics

Imports

kernel32

Sections

.text Size: 423KB - Virtual size: 422KB

.rdata Size: 10.5MB - Virtual size: 10.5MB

.data Size: 1.3MB - Virtual size: 1.3MB

.pdata Size: 17KB - Virtual size: 17KB

.fptable Size: 512B - Virtual size: 256B

.tls Size: 512B - Virtual size: 9B

_RDATA Size: 1024B - Virtual size: 640B

.rsrc Size: 512B - Virtual size: 436B

.reloc Size: 309KB - Virtual size: 309KB

.text
Size: 423KB - Virtual size: 422KB

.rdata
Size: 10.5MB - Virtual size: 10.5MB

.data
Size: 1.3MB - Virtual size: 1.3MB

.pdata
Size: 17KB - Virtual size: 17KB

.fptable
Size: 512B - Virtual size: 256B

.tls
Size: 512B - Virtual size: 9B

_RDATA
Size: 1024B - Virtual size: 640B

.rsrc
Size: 512B - Virtual size: 436B

.reloc
Size: 309KB - Virtual size: 309KB