2024-06-05_3558003efb880e463639e5c9a0c0e6a1_cobalt-strike_ryuk

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General

Target

2024-06-05_3558003efb880e463639e5c9a0c0e6a1_cobalt-strike_ryuk
Size

217KB
MD5

3558003efb880e463639e5c9a0c0e6a1
SHA1

883bc5d1a186d255f697226b3c01f355cfa3f6c6
SHA256

a970a552f31bef6c9c7f3e8429888bce1feafb46e974bf16e47c5c3630bdeee6
SHA512

f359af33bd006d0f30155ed04e0766d7b06c7605c2976070c572a0cbb98793886b8554e3a366e1fbb2b213eaa0d50aa41fd7d653323efb223e33eda9b46ba191
SSDEEP

3072:m/FNZaRToFB5VfQzhpz17lHOGA24xDw9BkHHt3lQ/0/kVNguj1:mI0Lrfebf56Dw9iHF2L

Score

3^/10

Malware Config

Signatures

Unsigned PE 1 IoCs

Checks for missing Authenticode signature.

resource
2024-06-05_3558003efb880e463639e5c9a0c0e6a1_cobalt-strike_ryuk

Files

2024-06-05_3558003efb880e463639e5c9a0c0e6a1_cobalt-strike_ryuk
.exe windows:6 windows x64 arch:x64

277b0dfe5742ba4d361941c34ffe8821

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

AcquireSRWLockExclusive
CloseHandle
CompareStringW
CreateFileW
DecodePointer
DeleteCriticalSection
EncodePointer
EnterCriticalSection
EnumCalendarInfoW
EnumSystemLocalesW
ExitProcess
FindClose
FindFirstFileExW
FindNextFileW
FlsAlloc
FlsFree
FlsGetValue
FlsSetValue
FlushFileBuffers
FreeEnvironmentStringsW
FreeLibrary
GetACP
GetCPInfo
GetCommandLineA
GetCommandLineW
GetConsoleMode
GetConsoleOutputCP
GetCurrentProcess
GetCurrentProcessId
GetCurrentThreadId
GetEnvironmentStringsW
GetFileSizeEx
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
ReadConsoleW
ReadFile
ReleaseSRWLockExclusive
RtlCaptureContext
RtlLookupFunctionEntry
RtlPcToFileHeader
RtlUnwind
RtlUnwindEx
RtlVirtualUnwind
SetEndOfFile
SetEnvironmentVariableW
SetFilePointerEx
SetLastError
SetStdHandle
SetUnhandledExceptionFilter
SleepConditionVariableSRW
TerminateProcess
TlsAlloc
TlsFree
TlsGetValue
TlsSetValue
UnhandledExceptionFilter
VirtualAlloc
WakeAllConditionVariable
WideCharToMultiByte
WriteConsoleW
WriteFile

Sections

.text
Size: 136KB - Virtual size: 135KB

IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ

.rdata
Size: 55KB - Virtual size: 54KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.data
Size: 5KB - Virtual size: 10KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

.pdata
Size: 8KB - Virtual size: 8KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.00cfg
Size: 512B - Virtual size: 56B

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.gxfg
Size: 7KB - Virtual size: 6KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

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

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

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

_RDATA
Size: 512B - Virtual size: 500B

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

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

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ

Sharing

General

Malware Config

Signatures

Files

277b0dfe5742ba4d361941c34ffe8821

Headers

DLL Characteristics

File Characteristics

Imports

kernel32

Sections

.text Size: 136KB - Virtual size: 135KB

.rdata Size: 55KB - Virtual size: 54KB

.data Size: 5KB - Virtual size: 10KB

.pdata Size: 8KB - Virtual size: 8KB

.00cfg Size: 512B - Virtual size: 56B

.gxfg Size: 7KB - Virtual size: 6KB

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

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

_RDATA Size: 512B - Virtual size: 500B

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

.text
Size: 136KB - Virtual size: 135KB

.rdata
Size: 55KB - Virtual size: 54KB

.data
Size: 5KB - Virtual size: 10KB

.pdata
Size: 8KB - Virtual size: 8KB

.00cfg
Size: 512B - Virtual size: 56B

.gxfg
Size: 7KB - Virtual size: 6KB

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

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

_RDATA
Size: 512B - Virtual size: 500B

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