Static task
static1
Behavioral task
behavioral1
Sample
2024-10-03_f0da0e21db8438abdc300b9397b7a026_cobalt-strike_ryuk.exe
Resource
win7-20240903-en
Behavioral task
behavioral2
Sample
2024-10-03_f0da0e21db8438abdc300b9397b7a026_cobalt-strike_ryuk.exe
Resource
win10v2004-20240802-en
General
-
Target
2024-10-03_f0da0e21db8438abdc300b9397b7a026_cobalt-strike_ryuk
-
Size
8.9MB
-
MD5
f0da0e21db8438abdc300b9397b7a026
-
SHA1
9e987651566cd31b84a2bcec8110f95e8094ea96
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SHA256
ae9f0f576ec09666823c4e51ce066d96704e46d1e54e78534b7c0d44c40c269f
-
SHA512
0780b71c49073e6f36c6f953d0c0f4fbbfafc920ca403f7f2275a3fbf64ba5ffa391ecbb30f1ad755122063961ff79d0a63054267e08a7a91e51cd5b163e8bf7
-
SSDEEP
196608:mAAHnhvhi/niOgjt/WDg6AiQBhyabEAkZQdnkW9AVSGfGIJX/aI6HMaJTtGb:NAHnhvhuniYz0yu4JfdJX
Malware Config
Signatures
-
Unsigned PE 1 IoCs
Checks for missing Authenticode signature.
resource 2024-10-03_f0da0e21db8438abdc300b9397b7a026_cobalt-strike_ryuk
Files
-
2024-10-03_f0da0e21db8438abdc300b9397b7a026_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