Static task
static1
Behavioral task
behavioral1
Sample
2024-05-23_f7a984de03c43ef5a499f7aba29893ef_ryuk.exe
Resource
win7-20240215-en
Behavioral task
behavioral2
Sample
2024-05-23_f7a984de03c43ef5a499f7aba29893ef_ryuk.exe
Resource
win10v2004-20240508-en
General
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Target
2024-05-23_f7a984de03c43ef5a499f7aba29893ef_ryuk
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Size
6.2MB
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MD5
f7a984de03c43ef5a499f7aba29893ef
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SHA1
a9ea058c02f800881796c28719506f559a538b89
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SHA256
4c9b79dc2f7d428813c6a55a14f120b858f91785477e1a2a3b4cadd0d0c47886
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SHA512
ea55ddf1939ae0e0fffab7088d14fdd1a3d70564264c60ba34ba8dbfb5c352de733201d4d6723577775bedff6d4ee52709f36c19c27360a826b75f23a6693a0e
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SSDEEP
98304:Z7hRd3bpdpf5rRr5mhkWmWYC9cOgdrx66MMMMmMMMMW9MMMMmMMMMWQ4MMMGMMMl:Dt9rRmildrx61
Malware Config
Signatures
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Unsigned PE 1 IoCs
Checks for missing Authenticode signature.
resource 2024-05-23_f7a984de03c43ef5a499f7aba29893ef_ryuk
Files
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2024-05-23_f7a984de03c43ef5a499f7aba29893ef_ryuk.exe windows:5 windows x64 arch:x64
ab606a07cabb64f0d78c67c8246d596c
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
FindNextFileA
FindFirstFileExA
SetFilePointerEx
GetConsoleMode
GetConsoleCP
GetStringTypeW
LCMapStringW
GetTimeZoneInformation
GetStdHandle
IsValidCodePage
GetFileType
SetStdHandle
QueryPerformanceFrequency
HeapQueryInformation
VirtualQuery
VirtualAlloc
GetSystemInfo
GetCommandLineW
GetCommandLineA
FreeLibraryAndExitThread
ExitThread
CreateThread
RtlPcToFileHeader
RtlUnwindEx
OutputDebugStringW
GetEnvironmentStringsW
FreeEnvironmentStringsW
SetEnvironmentVariableA
WriteConsoleW
InitializeSListHead
GetSystemTimeAsFileTime
QueryPerformanceCounter
GetStartupInfoW
IsDebuggerPresent
IsProcessorFeaturePresent
TerminateProcess
SetUnhandledExceptionFilter
UnhandledExceptionFilter
RtlVirtualUnwind
RtlLookupFunctionEntry
RtlCaptureContext
CreateEventW
WaitForSingleObjectEx
ResetEvent
Sleep
SearchPathA
GetProfileIntA
GetTempFileNameA
GetTempPathA
VerifyVersionInfoA
VerSetConditionMask
FindResourceExW
GetTickCount
SystemTimeToTzSpecificLocalTime
GetFileTime
GetFileSizeEx
GetFileAttributesExA
GetFileAttributesA
FileTimeToLocalFileTime
SetErrorMode
lstrcpyA
GetWindowsDirectoryA
GetCPInfo
GetOEMCP
VirtualProtect
FileTimeToSystemTime
GetThreadLocale
GetVolumeInformationA
lstrcmpiA
GetCurrentProcess
DuplicateHandle
WriteFile
UnlockFile
SetFilePointer
SetEndOfFile
ReadFile
LockFile
GetFullPathNameA
GetFileSize
FlushFileBuffers
FindFirstFileA
FindClose
CreateFileA
DeleteFileA
GetUserDefaultUILanguage
GetSystemDefaultUILanguage
GetLocaleInfoW
CompareStringW
GetCurrentDirectoryA
LocalReAlloc
LocalAlloc
GlobalHandle
GlobalReAlloc
TlsFree
TlsSetValue
TlsGetValue
TlsAlloc
GetACP
LeaveCriticalSection
EnterCriticalSection
InitializeCriticalSection
GlobalFlags
GlobalGetAtomNameA
GlobalFindAtomA
lstrcmpW
GetSystemDirectoryW
EncodePointer
CopyFileA
FormatMessageA
MulDiv
LocalFree
GlobalSize
GetCurrentProcessId
GlobalAddAtomA
WritePrivateProfileStringA
GetPrivateProfileStringA
GetPrivateProfileIntA
GetModuleHandleW
GetModuleHandleA
CompareStringA
MultiByteToWideChar
lstrcmpA
GlobalDeleteAtom
GlobalAlloc
LoadLibraryExW
GetModuleFileNameA
FreeLibrary
GetVersionExA
GetCurrentThread
ResumeThread
SetThreadPriority
GetCurrentThreadId
WaitForSingleObject
SetEvent
CloseHandle
QueryActCtxW
FindActCtxSectionStringW
DeactivateActCtx
ActivateActCtx
CreateActCtxW
FindResourceA
LoadLibraryW
GlobalFree
GlobalUnlock
GlobalLock
GetModuleHandleExW
GetModuleFileNameW
FreeResource
SetLastError
OutputDebugStringA
DeleteCriticalSection
InitializeCriticalSectionAndSpinCount
GetLastError
RaiseException
GetProcessHeap
HeapSize
HeapFree
HeapReAlloc
HeapAlloc
DecodePointer
WideCharToMultiByte
FindResourceW
LoadLibraryA
SizeofResource
LoadResource
GetProcAddress
ExitProcess
LockResource
CreateFileW
user32
LoadImageW
TrackMouseEvent
GetMenuDefaultItem
CreatePopupMenu
GetAsyncKeyState
MessageBeep
GetNextDlgGroupItem
IsRectEmpty
SetRect
InvalidateRgn
CopyAcceleratorTableA
CharNextA
LoadCursorW
WindowFromPoint
ReleaseCapture
SetCapture
WaitMessage
CharUpperA
DestroyIcon
InvalidateRect
KillTimer
DeleteMenu
CopyImage
OffsetRect
SetRectEmpty
LoadCursorA
GetSysColorBrush
RealChildWindowFromPoint
IntersectRect
IsDialogMessageA
SetWindowTextA
SendDlgItemMessageA
CheckDlgButton
MoveWindow
ShowWindow
GetMonitorInfoA
MonitorFromWindow
WinHelpA
GetScrollInfo
SetScrollInfo
LoadIconA
GetTopWindow
GetClassNameA
GetClassLongPtrA
GetClassLongA
SetWindowLongPtrA
GetWindowLongPtrA
SetWindowLongA
PtInRect
EqualRect
MapWindowPoints
AdjustWindowRectEx
GetWindowRect
GetWindowTextLengthA
GetWindowTextA
RemovePropA
GetPropA
SetPropA
ShowScrollBar
GetScrollRange
SetScrollRange
GetScrollPos
SetScrollPos
ScrollWindow
RedrawWindow
SetForegroundWindow
GetForegroundWindow
UpdateWindow
BringWindowToTop
TrackPopupMenu
SetMenu
GetMenu
GetCapture
SetFocus
GetDlgCtrlID
EndDeferWindowPos
DeferWindowPos
BeginDeferWindowPos
SetWindowPlacement
GetWindowPlacement
ReuseDDElParam
IsMenu
CreateWindowExA
GetClassInfoExA
GetClassInfoA
RegisterClassA
CallWindowProcA
DefWindowProcA
GetMessageTime
GetMessagePos
RegisterWindowMessageA
SystemParametersInfoA
InflateRect
CopyRect
GetMenuItemInfoA
DestroyMenu
FillRect
GetSysColor
ScreenToClient
ClientToScreen
EndPaint
BeginPaint
ReleaseDC
GetWindowDC
GetDC
TabbedTextOutA
GrayStringA
RegisterClipboardFormatA
DrawFocusRect
DrawIconEx
SendMessageA
IsIconic
SetTimer
EnableWindow
GetSystemMetrics
DrawTextExA
DrawTextA
UnhookWindowsHookEx
RemoveMenu
InsertMenuA
GetMenuItemCount
GetMenuItemID
GetSubMenu
GetMenuState
GetMenuStringA
MapDialogRect
GetWindow
SetWindowContextHelpId
SetWindowPos
GetLastActivePopup
GetWindowThreadProcessId
GetIconInfo
EnableScrollBar
HideCaret
InvertRect
NotifyWinEvent
MapVirtualKeyA
GetKeyNameTextA
SetLayeredWindowAttributes
EnumDisplayMonitors
SetClassLongPtrA
SetWindowRgn
SetParent
DrawEdge
OpenClipboard
LoadAcceleratorsA
TranslateAcceleratorA
LoadMenuA
InsertMenuItemA
LoadImageA
UnpackDDElParam
GetSystemMenu
AppendMenuA
DrawIcon
GetClientRect
LoadIconW
UnregisterClassA
GetFocus
CheckMenuItem
EnableMenuItem
SetMenuItemBitmaps
GetMenuCheckMarkDimensions
SetMenuItemInfoA
GetParent
LoadBitmapW
IsWindow
DestroyWindow
CreateDialogIndirectParamA
EndDialog
GetDlgItem
GetNextDlgTabItem
GetActiveWindow
IsWindowEnabled
SetActiveWindow
GetWindowLongA
GetDesktopWindow
GetMessageA
TranslateMessage
DispatchMessageA
PeekMessageA
IsWindowVisible
GetKeyState
ValidateRect
GetCursorPos
SetWindowsHookExA
CallNextHookEx
PostMessageA
PostQuitMessage
ShowOwnedPopups
SetCursor
MessageBoxA
CloseClipboard
SetClipboardData
EmptyClipboard
DrawStateA
DestroyCursor
GetWindowRgn
CreateMenu
SubtractRect
TranslateMDISysAccel
DefMDIChildProcA
DefFrameProcA
DrawMenuBar
GetUpdateRect
IsClipboardFormatAvailable
CharUpperBuffA
ModifyMenuA
GetDoubleClickTime
SetMenuDefaultItem
LockWindowUpdate
DestroyAcceleratorTable
CreateAcceleratorTableA
LoadAcceleratorsW
ToAsciiEx
GetKeyboardState
MapVirtualKeyExA
IsCharLowerA
GetKeyboardLayout
GetComboBoxInfo
MonitorFromPoint
UpdateLayeredWindow
PostThreadMessageA
UnionRect
FrameRect
CopyIcon
SetCursorPos
LoadMenuW
IsZoomed
DrawFrameControl
IsChild
gdi32
GetClipBox
GetObjectType
GetPixel
GetStockObject
GetViewportExtEx
GetWindowExtEx
IntersectClipRect
LineTo
PtVisible
RectVisible
RestoreDC
SaveDC
SelectClipRgn
ExtSelectClipRgn
SelectObject
SelectPalette
SetBkColor
SetBkMode
SetMapMode
SetLayout
GetLayout
SetPolyFillMode
SetROP2
SetTextColor
SetTextAlign
GetObjectA
MoveToEx
TextOutA
ExtTextOutA
SetViewportExtEx
SetViewportOrgEx
SetWindowExtEx
SetWindowOrgEx
OffsetViewportOrgEx
OffsetWindowOrgEx
ScaleViewportExtEx
ScaleWindowExtEx
CreateFontIndirectA
GetTextExtentPoint32A
CombineRgn
ExcludeClipRect
GetMapMode
PatBlt
SetRectRgn
DPtoLP
GetTextMetricsA
GetBkColor
GetTextColor
GetRgnBox
CreateCompatibleBitmap
EnumFontFamiliesExA
CreatePalette
GetNearestPaletteIndex
GetPaletteEntries
GetSystemPaletteEntries
RealizePalette
CreateDIBitmap
EnumFontFamiliesA
GetTextCharsetInfo
SetPixel
StretchBlt
CreateDIBSection
SetDIBColorTable
CreateEllipticRgn
Ellipse
CreatePolygonRgn
Polygon
Polyline
CreateRoundRectRgn
LPtoDP
OffsetRgn
RoundRect
FillRgn
FrameRgn
GetBoundsRect
PtInRegion
ExtFloodFill
SetPaletteEntries
SetPixelV
GetWindowOrgEx
GetViewportOrgEx
GetTextFaceA
Escape
DeleteObject
DeleteDC
CreateSolidBrush
CreateRectRgn
CreatePatternBrush
CreatePen
CreateHatchBrush
CreateCompatibleDC
BitBlt
GetDeviceCaps
CreateDCA
CopyMetaFileA
CreateRectRgnIndirect
Rectangle
CreateBitmap
msimg32
AlphaBlend
TransparentBlt
winspool.drv
DocumentPropertiesA
OpenPrinterA
ClosePrinter
advapi32
RegEnumKeyExA
RegEnumValueA
RegQueryValueA
RegEnumKeyA
RegSetValueExA
RegDeleteValueA
RegDeleteKeyA
RegCreateKeyExA
RegQueryValueExA
RegOpenKeyExA
RegCloseKey
shell32
ShellExecuteA
DragFinish
DragQueryFileA
SHGetDesktopFolder
SHGetSpecialFolderLocation
SHGetPathFromIDListA
SHGetFileInfoA
SHAppBarMessage
SHBrowseForFolderA
shlwapi
StrFormatKBSizeA
PathStripToRootA
PathIsUNCA
PathFindFileNameA
PathFindExtensionA
PathRemoveFileSpecW
uxtheme
GetThemeSysColor
GetWindowTheme
IsAppThemed
GetThemePartSize
DrawThemeText
DrawThemeParentBackground
OpenThemeData
CloseThemeData
DrawThemeBackground
GetThemeColor
GetCurrentThemeName
IsThemeBackgroundPartiallyTransparent
ole32
CoGetClassObject
CreateStreamOnHGlobal
OleUninitialize
OleInitialize
CoFreeUnusedLibraries
CoRevokeClassObject
OleFlushClipboard
OleIsCurrentClipboard
CoRegisterMessageFilter
DoDragDrop
OleGetClipboard
CoLockObjectExternal
RegisterDragDrop
RevokeDragDrop
OleLockRunning
OleCreateMenuDescriptor
OleDestroyMenuDescriptor
OleTranslateAccelerator
IsAccelerator
CoInitializeEx
CreateILockBytesOnHGlobal
StgOpenStorageOnILockBytes
StgCreateDocfileOnILockBytes
CoDisconnectObject
ReleaseStgMedium
OleDuplicateData
CoTaskMemFree
CoTaskMemAlloc
CLSIDFromProgID
CLSIDFromString
CoInitialize
CoCreateInstance
CoCreateGuid
CoUninitialize
oleaut32
OleCreateFontIndirect
SysAllocString
SysStringLen
SystemTimeToVariantTime
VariantTimeToSystemTime
SafeArrayDestroy
LoadTypeLi
VariantChangeType
VariantCopy
VarBstrFromDate
VariantClear
VariantInit
SysAllocStringByteLen
SysFreeString
SysAllocStringLen
oledlg
ord8
oleacc
AccessibleObjectFromWindow
LresultFromObject
CreateStdAccessibleObject
gdiplus
GdipDrawImageRectI
GdipSetInterpolationMode
GdipCreateFromHDC
GdipCreateBitmapFromHBITMAP
GdipDrawImageI
GdipDeleteGraphics
GdipBitmapUnlockBits
GdipBitmapLockBits
GdipCreateBitmapFromScan0
GdipCreateBitmapFromStream
GdipGetImagePaletteSize
GdipGetImagePalette
GdipGetImagePixelFormat
GdipGetImageHeight
GdipGetImageWidth
GdipGetImageGraphicsContext
GdipDisposeImage
GdipCloneImage
GdiplusStartup
GdipFree
GdipAlloc
GdiplusShutdown
imm32
ImmGetContext
ImmGetOpenStatus
ImmReleaseContext
winmm
PlaySoundA
Sections
.text Size: 1.9MB - Virtual size: 1.9MB
IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ
.rdata Size: 633KB - Virtual size: 633KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
.data Size: 3.4MB - Virtual size: 3.5MB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE
.pdata Size: 89KB - Virtual size: 88KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
.gfids Size: 105KB - Virtual size: 105KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
.giats Size: 512B - Virtual size: 16B
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
.tls Size: 512B - Virtual size: 9B
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE
.rsrc Size: 24KB - Virtual size: 23KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
.reloc Size: 60KB - Virtual size: 59KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ