2024-09-27_2d07ebe32b7fef1798a09268f50f10bc_cobalt-strike_ryuk

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General

Target

2024-09-27_2d07ebe32b7fef1798a09268f50f10bc_cobalt-strike_ryuk
Size

8.9MB
MD5

2d07ebe32b7fef1798a09268f50f10bc
SHA1

63c7eaf1b77b95832f4736efeab6b97f9d47b110
SHA256

17b53a2e4b7eb6ec75629ca61df6aa6e2cf36c0bbceebd2184e4e1f38418ffd0
SHA512

ba2db2b66b013ec2f830a73ef360d77a77a02705dc14acd09818d6f253d22ee34f9a966b754a99a028d80772163c8f37c76b495e2695914d17a6b03e32f7c7b2
SSDEEP

196608:rLluUfrF5JiY3yLtJyfg6AiQBhyQbEAkZQdnkW9AVSGfGIJXHaI6HMaJTtGb:XluUfrFbiY/zyyu4JfdJX

Score

3^/10

Malware Config

Signatures

Unsigned PE 1 IoCs

Checks for missing Authenticode signature.

resource
2024-09-27_2d07ebe32b7fef1798a09268f50f10bc_cobalt-strike_ryuk

Files

2024-09-27_2d07ebe32b7fef1798a09268f50f10bc_cobalt-strike_ryuk
.exe windows:5 windows x64 arch:x64

17c86304612554c8ea9854e39c534297

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

BeginUpdateResourceW
CloseHandle
CompareStringW
CopyFileW
CreateDirectoryW
CreateEventA
CreateFileW
CreatePipe
CreateProcessW
CreateRemoteThread
CreateSemaphoreW
CreateThread
CreateToolhelp32Snapshot
DeleteCriticalSection
DeleteFileW
DuplicateHandle
EncodePointer
EndUpdateResourceW
EnterCriticalSection
EnumSystemLocalesW
ExitProcess
ExpandEnvironmentStringsW
FileTimeToLocalFileTime
FileTimeToSystemTime
FindClose
FindFirstFileExW
FindFirstFileW
FindNextFileW
FindResourceW
FlsAlloc
FlsFree
FlsGetValue
FlsSetValue
FlushFileBuffers
FormatMessageW
FreeEnvironmentStringsW
FreeLibrary
GetACP
GetCPInfo
GetCommandLineA
GetCommandLineW
GetConsoleMode
GetConsoleOutputCP
GetCurrentDirectoryW
GetCurrentProcess
GetCurrentProcessId
GetCurrentThread
GetCurrentThreadId
GetDriveTypeW
GetEnvironmentStringsW
GetEnvironmentVariableW
GetExitCodeProcess
GetExitCodeThread
GetFileAttributesW
GetFileSize
GetFileSizeEx
GetFileType
GetLastError
GetLocalTime
GetLocaleInfoW
GetLogicalDriveStringsW
GetModuleFileNameW
GetModuleHandleExW
GetModuleHandleW
GetOEMCP
GetProcAddress
GetProcessHeap
GetShortPathNameW
GetStartupInfoW
GetStdHandle
GetStringTypeW
GetSystemDefaultLangID
GetSystemTimeAsFileTime
GetTickCount
GetUserDefaultLCID
GetUserDefaultLangID
GetVersionExW
GetVolumeInformationW
GlobalAlloc
GlobalFree
GlobalHandle
GlobalLock
GlobalUnlock
HeapAlloc
HeapCreate
HeapDestroy
HeapFree
HeapReAlloc
HeapSize
InitializeCriticalSection
InitializeCriticalSectionAndSpinCount
InitializeSListHead
IsDebuggerPresent
IsProcessorFeaturePresent
IsValidCodePage
IsValidLocale
LCMapStringW
LeaveCriticalSection
LoadLibraryA
LoadLibraryExW
LoadLibraryW
LoadResource
LocalFileTimeToFileTime
LockResource
MulDiv
MultiByteToWideChar
OpenProcess
OutputDebugStringW
PeekNamedPipe
QueryDosDeviceW
QueryPerformanceCounter
QueryPerformanceFrequency
RaiseException
ReadConsoleW
ReadFile
RegisterWaitForSingleObject
ReleaseSemaphore
RemoveDirectoryW
ResetEvent
RtlCaptureContext
RtlLookupFunctionEntry
RtlPcToFileHeader
RtlUnwind
RtlUnwindEx
RtlVirtualUnwind
SetCurrentDirectoryW
SetEndOfFile
SetEnvironmentVariableW
SetEvent
SetFileAttributesW
SetFilePointer
SetFilePointerEx
SetFileTime
SetLastError
SetStdHandle
SetThreadPriority
SetUnhandledExceptionFilter
SizeofResource
Sleep
SystemTimeToFileTime
TerminateProcess
TlsAlloc
TlsFree
TlsGetValue
TlsSetValue
UnhandledExceptionFilter
UnregisterWait
UpdateResourceW
WaitForSingleObject
WideCharToMultiByte
WriteConsoleW
WriteFile
lstrcpyA
lstrcpynA

user32

AdjustWindowRectEx
BeginPaint
CallNextHookEx
CallWindowProcW
CharLowerW
CharUpperW
ChildWindowFromPointEx
ClientToScreen
ClipCursor
CopyImage
CreateAcceleratorTableW
CreateIconFromResource
CreateIconFromResourceEx
CreateWindowExW
DefFrameProcW
DefWindowProcW
DestroyAcceleratorTable
DestroyIcon
DestroyMenu
DestroyWindow
DispatchMessageW
DrawFocusRect
DrawFrameControl
DrawIconEx
DrawStateW
DrawTextW
EnableWindow
EndPaint
EnumChildWindows
EnumPropsExW
EnumWindows
FillRect
FindWindowExW
FindWindowW
FrameRect
GetActiveWindow
GetAsyncKeyState
GetCapture
GetClassLongPtrW
GetClassNameW
GetClientRect
GetCursorPos
GetDC
GetDlgCtrlID
GetFocus
GetForegroundWindow
GetIconInfo
GetKeyState
GetMenu
GetMessagePos
GetMessageW
GetParent
GetPropW
GetScrollPos
GetScrollRange
GetSysColor
GetSysColorBrush
GetSystemMetrics
GetWindow
GetWindowDC
GetWindowLongPtrW
GetWindowLongW
GetWindowRect
GetWindowTextLengthW
GetWindowTextW
GetWindowThreadProcessId
InflateRect
InvalidateRect
IsChild
IsIconic
IsRectEmpty
IsWindow
IsWindowEnabled
IsWindowVisible
IsZoomed
KillTimer
LoadCursorW
LoadIconW
MapWindowPoints
MessageBoxW
MoveWindow
MsgWaitForMultipleObjects
OemToCharW
OffsetRect
PeekMessageW
PostMessageW
RedrawWindow
RegisterClassExW
RegisterClassW
RegisterWindowMessageW
ReleaseCapture
ReleaseDC
RemovePropW
ScreenToClient
SendMessageW
SetActiveWindow
SetCapture
SetClassLongPtrW
SetCursor
SetCursorPos
SetFocus
SetForegroundWindow
SetMenu
SetPropW
SetRect
SetScrollInfo
SetScrollPos
SetTimer
SetWindowLongPtrW
SetWindowPos
SetWindowRgn
SetWindowTextW
SetWindowsHookExW
ShowWindow
SubtractRect
SystemParametersInfoW
TrackPopupMenu
TranslateAcceleratorW
TranslateMessage
UnhookWindowsHookEx
UnregisterClassW
UpdateWindow
WindowFromPoint
wsprintfA

gdi32

BitBlt
CreateBitmap
CreateCompatibleBitmap
CreateCompatibleDC
CreateDCW
CreateDIBSection
CreateFontIndirectW
CreateFontW
CreatePatternBrush
CreatePen
CreateRectRgn
CreateRectRgnIndirect
CreateRoundRectRgn
CreateSolidBrush
DeleteDC
DeleteObject
ExcludeClipRect
ExtSelectClipRgn
GdiGetBatchLimit
GdiSetBatchLimit
GetClipRgn
GetDIBits
GetDeviceCaps
GetObjectType
GetObjectW
GetPixel
GetStockObject
GetTextExtentPoint32W
GetTextMetricsW
LineTo
MoveToEx
SelectClipRgn
SelectObject
SetBkColor
SetBkMode
SetBrushOrgEx
SetDCBrushColor
SetPixel
SetStretchBltMode
SetTextAlign
SetTextColor
StretchBlt
TextOutW

advapi32

IsValidSid
LookupAccountNameW
RegCloseKey
RegConnectRegistryW
RegCreateKeyExW
RegCreateKeyW
RegDeleteKeyW
RegDeleteValueW
RegEnumKeyExW
RegOpenKeyExW
RegOpenKeyW
RegQueryValueExW
RegSetValueExW
SystemFunction036

comctl32

ImageList_Add
ImageList_AddMasked
ImageList_Create
ImageList_Destroy
ImageList_GetIconSize
ImageList_Remove
ImageList_Replace
ImageList_ReplaceIcon
InitCommonControlsEx
_TrackMouseEvent

oleaut32

SafeArrayGetDim
SafeArrayGetElement
SafeArrayGetUBound

ole32

CoCreateInstance
CoInitialize
CoInitializeEx
CoInitializeSecurity
CoSetProxyBlanket
CoTaskMemFree
CoUninitialize
OleInitialize
OleUninitialize
RevokeDragDrop

shell32

SHGetFolderLocation
SHGetPathFromIDListW
SHGetSpecialFolderLocation
ShellExecuteExW
Shell_NotifyIconW

ws2_32

WSACleanup
WSAStartup
closesocket
gethostbyname

imagehlp

MakeSureDirectoryPathExists
MapFileAndCheckSumW

uxtheme

CloseThemeData
DrawThemeBackground
OpenThemeData
SetWindowTheme

winmm

timeBeginPeriod

gdiplus

GdipDeleteFont
GdipDeleteGraphics
GdipDeleteMatrix
GdipDeletePath
GdipDeletePen
GdipDeleteStringFormat
GdipFree

Sections

.text
Size: 1.5MB - Virtual size: 1.5MB

IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ

.rdata
Size: 259KB - Virtual size: 259KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.data
Size: 6.9MB - Virtual size: 7.3MB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

.pdata
Size: 40KB - Virtual size: 39KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.gxfg
Size: 11KB - Virtual size: 10KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.modplug
Size: - Virtual size: 20KB

IMAGE_SCN_CNT_UNINITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

_RDATA
Size: 512B - Virtual size: 348B

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.rsrc
Size: 284KB - Virtual size: 283KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.reloc
Size: 3KB - Virtual size: 3KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ

Sharing

General

Malware Config

Signatures

Files

17c86304612554c8ea9854e39c534297

Headers

DLL Characteristics

File Characteristics

Imports

kernel32

user32

gdi32

advapi32

comctl32

oleaut32

ole32

shell32

ws2_32

imagehlp

uxtheme

winmm

gdiplus

Sections

.text Size: 1.5MB - Virtual size: 1.5MB

.rdata Size: 259KB - Virtual size: 259KB

.data Size: 6.9MB - Virtual size: 7.3MB

.pdata Size: 40KB - Virtual size: 39KB

.gxfg Size: 11KB - Virtual size: 10KB

.modplug Size: - Virtual size: 20KB

_RDATA Size: 512B - Virtual size: 348B

.rsrc Size: 284KB - Virtual size: 283KB

.reloc Size: 3KB - Virtual size: 3KB

.text
Size: 1.5MB - Virtual size: 1.5MB

.rdata
Size: 259KB - Virtual size: 259KB

.data
Size: 6.9MB - Virtual size: 7.3MB

.pdata
Size: 40KB - Virtual size: 39KB

.gxfg
Size: 11KB - Virtual size: 10KB

.modplug
Size: - Virtual size: 20KB

_RDATA
Size: 512B - Virtual size: 348B

.rsrc
Size: 284KB - Virtual size: 283KB

.reloc
Size: 3KB - Virtual size: 3KB