2024-02-21_3d810730cf398341d52ce3043f932769_cobalt-strike_ryuk

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General

Target

2024-02-21_3d810730cf398341d52ce3043f932769_cobalt-strike_ryuk
Size

139KB
MD5

3d810730cf398341d52ce3043f932769
SHA1

646159b0e2df200bed275614e7d54afbf3900d87
SHA256

f447aa768923bf25445741b195ecc393018d07e96dfc518da71f52c1887490e5
SHA512

ed71d8d503f99afd5013507c7d3ff0f8ed4360ea04c53d86ba88fc75b6bb1fcb48ea4cd2db190e8c31a6217d38fa8be996c245b26e4126515e6f169c131258e9
SSDEEP

3072:c9Y+C+C/ZpmCzC4f7CJYAKL5bue37FWbZflmUSD:TJpmuXDkwFbuoFSw

Score

3^/10

Malware Config

Signatures

Unsigned PE 1 IoCs

Checks for missing Authenticode signature.

resource
2024-02-21_3d810730cf398341d52ce3043f932769_cobalt-strike_ryuk

Files

2024-02-21_3d810730cf398341d52ce3043f932769_cobalt-strike_ryuk
.exe windows:6 windows x64 arch:x64

905d113aa5a12821d415f99e70d5dbdb

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

user32

BeginPaint
CreateWindowExW
DefWindowProcW
DestroyWindow
DialogBoxParamW
DispatchMessageW
EndDialog
EndPaint
GetMessageW
LoadAcceleratorsW
LoadCursorW
LoadIconW
LoadStringW
PostQuitMessage
RegisterClassExW
ShowWindow
TranslateAcceleratorW
TranslateMessage
UpdateWindow

kernel32

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

Sections

.text
Size: 80KB - Virtual size: 80KB

IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ

.rdata
Size: 42KB - Virtual size: 42KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.data
Size: 4KB - Virtual size: 9KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

.pdata
Size: 5KB - Virtual size: 4KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.00cfg
Size: 512B - Virtual size: 40B

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.gehcont
Size: 512B - Virtual size: 36B

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.voltbl
Size: 512B - Virtual size: 46B

_RDATA
Size: 512B - Virtual size: 244B

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.rsrc
Size: 1KB - Virtual size: 1KB

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

905d113aa5a12821d415f99e70d5dbdb

Headers

DLL Characteristics

File Characteristics

Imports

user32

kernel32

Sections

.text Size: 80KB - Virtual size: 80KB

.rdata Size: 42KB - Virtual size: 42KB

.data Size: 4KB - Virtual size: 9KB

.pdata Size: 5KB - Virtual size: 4KB

.00cfg Size: 512B - Virtual size: 40B

.gehcont Size: 512B - Virtual size: 36B

.voltbl Size: 512B - Virtual size: 46B

_RDATA Size: 512B - Virtual size: 244B

.rsrc Size: 1KB - Virtual size: 1KB

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

.text
Size: 80KB - Virtual size: 80KB

.rdata
Size: 42KB - Virtual size: 42KB

.data
Size: 4KB - Virtual size: 9KB

.pdata
Size: 5KB - Virtual size: 4KB

.00cfg
Size: 512B - Virtual size: 40B

.gehcont
Size: 512B - Virtual size: 36B

.voltbl
Size: 512B - Virtual size: 46B

_RDATA
Size: 512B - Virtual size: 244B

.rsrc
Size: 1KB - Virtual size: 1KB

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