2024-07-03_4a48e30d2f8a1b994ef7f3ec8c15b473_cobalt-strike_ryuk

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General

Target

2024-07-03_4a48e30d2f8a1b994ef7f3ec8c15b473_cobalt-strike_ryuk
Size

258KB
MD5

4a48e30d2f8a1b994ef7f3ec8c15b473
SHA1

4e08bb971d365cd916992baf41c8f0cafb30fb7b
SHA256

9e8eddba348d9a9cc42bc1a8aff8d4891069398a26bfc8fdc38989f77d1100ec
SHA512

f14f6d16074255a48ecddacd29605c75bc9b2f98a8e298a8d33bcd6d704be7af286d566ec078c96663a1afba276be5563d7d3bf9b24338d34a1c3acba907dd03
SSDEEP

6144:q7CIzKPlQS9lBBPd27o3IJdsIohMBAb9T:qeIzKPWUXd2FqIoJT

Score

3^/10

Malware Config

Signatures

Unsigned PE 1 IoCs

Checks for missing Authenticode signature.

resource
2024-07-03_4a48e30d2f8a1b994ef7f3ec8c15b473_cobalt-strike_ryuk

Files

2024-07-03_4a48e30d2f8a1b994ef7f3ec8c15b473_cobalt-strike_ryuk
.exe windows:5 windows x64 arch:x64

0f4efc76589543376ff6b438eff04d55

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
CreateFileW
DeleteCriticalSection
DeleteFileW
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
HeapCreate
HeapDestroy
HeapFree
HeapReAlloc
HeapSize
InitializeCriticalSection
InitializeCriticalSectionAndSpinCount
InitializeSListHead
IsDebuggerPresent
IsProcessorFeaturePresent
IsValidCodePage
IsValidLocale
LCMapStringW
LeaveCriticalSection
LoadLibraryExW
LoadLibraryW
MulDiv
MultiByteToWideChar
QueryPerformanceCounter
RaiseException
ReadConsoleW
ReadFile
RtlCaptureContext
RtlLookupFunctionEntry
RtlPcToFileHeader
RtlUnwindEx
RtlVirtualUnwind
SetFilePointerEx
SetLastError
SetStdHandle
SetUnhandledExceptionFilter
Sleep
TerminateProcess
TlsAlloc
TlsFree
TlsGetValue
TlsSetValue
UnhandledExceptionFilter
WideCharToMultiByte
WriteConsoleW
WriteFile

gdi32

BitBlt
CreateCompatibleBitmap
CreateCompatibleDC
CreateDCW
CreateDIBSection
CreateFontIndirectW
CreateRectRgnIndirect
CreateSolidBrush
DeleteDC
DeleteObject
ExtSelectClipRgn
GetClipRgn
GetDIBits
GetDeviceCaps
GetObjectA
GetObjectType
GetObjectW
GetStockObject
SelectClipRgn
SelectObject

user32

AdjustWindowRectEx
BeginPaint
CallWindowProcW
ChildWindowFromPointEx
ClipCursor
CreateAcceleratorTableW
CreateWindowExW
DefFrameProcW
DefWindowProcW
DestroyAcceleratorTable
DestroyIcon
DestroyMenu
DestroyWindow
DispatchMessageW
DrawFocusRect
DrawStateW
EndPaint
EnumChildWindows
FillRect
GetActiveWindow
GetCapture
GetClassNameW
GetClientRect
GetCursorPos
GetDC
GetFocus
GetKeyState
GetMessagePos
GetMessageW
GetParent
GetPropW
GetSystemMetrics
GetWindow
GetWindowLongPtrW
GetWindowRect
GetWindowThreadProcessId
IsChild
IsWindowEnabled
IsWindowVisible
LoadCursorW
LoadIconW
MapWindowPoints
MsgWaitForMultipleObjects
PeekMessageW
PostMessageW
RedrawWindow
RegisterClassExW
RegisterClassW
RegisterWindowMessageW
ReleaseCapture
ReleaseDC
RemovePropW
ScreenToClient
SendMessageW
SetActiveWindow
SetCapture
SetCursor
SetFocus
SetForegroundWindow
SetMenu
SetPropW
SetRect
SetWindowLongPtrW
SetWindowPos
ShowWindow
SystemParametersInfoW
TrackPopupMenu
TranslateAcceleratorW
TranslateMessage
UnregisterClassW
UpdateWindow

comctl32

InitCommonControlsEx
_TrackMouseEvent

ole32

OleInitialize
OleUninitialize
RevokeDragDrop

gdiplus

GdipAddPathLine
GdipAlloc
GdipCloneBrush
GdipCloneStringFormat
GdipClosePathFigure
GdipCreateFont
GdipCreateFontFromDC
GdipCreateFontFromLogfontA
GdipCreateFromHDC
GdipCreateLineBrush
GdipCreateMatrix
GdipCreatePath
GdipCreatePen1
GdipCreateSolidFill
GdipDeleteBrush
GdipDeleteFont
GdipDeleteFontFamily
GdipDeleteGraphics
GdipDeleteMatrix
GdipDeletePath
GdipDeletePen
GdipDeleteStringFormat
GdipFillPath
GdipFree
GdipGetDpiX
GdipGetDpiY
GdipGetFamily
GdipGetFontSize
GdipGetFontStyle
GdipGetLinePresetBlend
GdipGetLinePresetBlendCount
GdipGetPathGradientPresetBlend
GdipGetPathGradientPresetBlendCount
GdipGetStringFormatFlags
GdipMultiplyLineTransform
GdipResetPath
GdipScaleMatrix
GdipSetCompositingMode
GdipSetInterpolationMode
GdipSetLinePresetBlend
GdipSetPageUnit
GdipSetPathFillMode
GdipSetPathGradientPresetBlend
GdipSetPenBrushFill
GdipSetSmoothingMode
GdipSetStringFormatFlags
GdipSetTextRenderingHint
GdipStartPathFigure
GdipStringFormatGetGenericTypographic
GdipTranslateWorldTransform
GdiplusStartup

shell32

Shell_NotifyIconW

Sections

.text
Size: 166KB - Virtual size: 165KB

IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ

.rdata
Size: 67KB - Virtual size: 67KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.data
Size: 3KB - Virtual size: 9KB

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

.code
Size: 1024B - Virtual size: 795B

IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ

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

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

_RDATA
Size: 512B - Virtual size: 348B

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

0f4efc76589543376ff6b438eff04d55

Headers

DLL Characteristics

File Characteristics

Imports

kernel32

gdi32

user32

comctl32

ole32

gdiplus

shell32

Sections

.text Size: 166KB - Virtual size: 165KB

.rdata Size: 67KB - Virtual size: 67KB

.data Size: 3KB - Virtual size: 9KB

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

.code Size: 1024B - Virtual size: 795B

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

_RDATA Size: 512B - Virtual size: 348B

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

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

.text
Size: 166KB - Virtual size: 165KB

.rdata
Size: 67KB - Virtual size: 67KB

.data
Size: 3KB - Virtual size: 9KB

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

.code
Size: 1024B - Virtual size: 795B

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

_RDATA
Size: 512B - Virtual size: 348B

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

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