Static task
static1
Behavioral task
behavioral1
Sample
2024-06-01_0b44149fc20008387cb9d553bf2ecbe4_ryuk.exe
Resource
win7-20240221-en
Behavioral task
behavioral2
Sample
2024-06-01_0b44149fc20008387cb9d553bf2ecbe4_ryuk.exe
Resource
win10v2004-20240426-en
General
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Target
2024-06-01_0b44149fc20008387cb9d553bf2ecbe4_ryuk
-
Size
5.1MB
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MD5
0b44149fc20008387cb9d553bf2ecbe4
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SHA1
6ca04261a1d524d94df7329cb385a269c5cb14d1
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SHA256
d41d22245d7ea225004724a9f9c4251b13069025a5cea3988f564e4436434c62
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SHA512
b9fc114a7e249f699c9ca958b44dfa4dfa5b786b2132e17356e806af75cdfa56538166a7b3866bff42a58d72f106919ccef9c93112b2b5ae0d430e9951f9e8f4
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SSDEEP
98304:yFgHocBWCrs2lTn/jc/q+XVJhz/qZWKUNh01Vexu58cEkf:yFgfzhnrc/vhTqnUNhuYu58p
Malware Config
Signatures
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Unsigned PE 1 IoCs
Checks for missing Authenticode signature.
resource 2024-06-01_0b44149fc20008387cb9d553bf2ecbe4_ryuk
Files
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2024-06-01_0b44149fc20008387cb9d553bf2ecbe4_ryuk.exe windows:5 windows x64 arch:x64
7ba6522f69b75ae43313dcbfa07e6cd0
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
SetFilePointerEx
GetConsoleMode
GetConsoleCP
GetTimeZoneInformation
GetStringTypeW
LCMapStringW
GetStdHandle
ExitProcess
GetFileType
FindFirstFileExA
IsValidCodePage
HeapQueryInformation
VirtualQuery
VirtualAlloc
GetSystemInfo
FreeLibraryAndExitThread
ExitThread
CreateThread
GetCommandLineW
GetCommandLineA
RtlUnwindEx
RtlPcToFileHeader
OutputDebugStringW
FindNextFileA
SetStdHandle
GetEnvironmentStringsW
FreeEnvironmentStringsW
SetEnvironmentVariableA
WriteConsoleW
InitializeSListHead
GetSystemTimeAsFileTime
QueryPerformanceCounter
GetStartupInfoW
IsDebuggerPresent
IsProcessorFeaturePresent
TerminateProcess
SetUnhandledExceptionFilter
UnhandledExceptionFilter
RtlVirtualUnwind
RtlLookupFunctionEntry
RtlCaptureContext
CreateEventW
WaitForSingleObjectEx
ResetEvent
Sleep
VerifyVersionInfoA
VerSetConditionMask
GetWindowsDirectoryA
GetTickCount
FindResourceExW
lstrcpyA
GetACP
GetCurrentDirectoryA
SetErrorMode
FileTimeToSystemTime
SystemTimeToTzSpecificLocalTime
LocalFileTimeToFileTime
GetFileSizeEx
GetFileAttributesExA
FileTimeToLocalFileTime
GetStringTypeExA
GetThreadLocale
GetVolumeInformationA
MoveFileA
lstrcmpiA
GetShortPathNameA
LoadLibraryExA
GetCurrentProcess
DuplicateHandle
WriteFile
UnlockFile
SetFilePointer
SetEndOfFile
ReadFile
LockFile
GetFileSize
FlushFileBuffers
FindFirstFileA
FindClose
DeleteFileA
CreateFileA
GetCPInfo
GetOEMCP
VirtualProtect
GetUserDefaultUILanguage
GetSystemDefaultUILanguage
GetLocaleInfoW
CompareStringW
LocalReAlloc
LocalAlloc
GlobalHandle
GlobalReAlloc
TlsFree
TlsSetValue
TlsGetValue
TlsAlloc
LeaveCriticalSection
EnterCriticalSection
InitializeCriticalSection
GlobalFlags
CopyFileA
FormatMessageA
LocalFree
GlobalSize
MulDiv
ResumeThread
SetThreadPriority
WaitForSingleObject
SetEvent
CloseHandle
WritePrivateProfileStringA
GetPrivateProfileStringA
GetPrivateProfileIntA
GetModuleHandleA
GlobalFree
GlobalAlloc
GetModuleFileNameA
GetVersionExA
GetCurrentThread
lstrcmpA
GetTempPathA
GetProfileIntA
SearchPathA
SystemTimeToFileTime
ReplaceFileA
GetTempFileNameA
SetFileTime
GetFullPathNameA
GetFileTime
GetFileAttributesA
GetDiskFreeSpaceA
CompareStringA
GlobalFindAtomA
FindResourceA
lstrcmpW
GlobalDeleteAtom
LoadLibraryExW
GetModuleHandleW
FreeResource
FreeLibrary
GetSystemDirectoryW
GetCurrentThreadId
EncodePointer
MultiByteToWideChar
GlobalGetAtomNameA
GlobalAddAtomA
GlobalUnlock
GlobalLock
GetCurrentProcessId
QueryActCtxW
FindActCtxSectionStringW
DeactivateActCtx
ActivateActCtx
CreateActCtxW
LoadLibraryW
GetModuleHandleExW
GetModuleFileNameW
SetLastError
OutputDebugStringA
GetProcessHeap
DeleteCriticalSection
DecodePointer
HeapAlloc
RaiseException
HeapReAlloc
GetLastError
HeapSize
InitializeCriticalSectionAndSpinCount
HeapFree
FindResourceW
LoadResource
LockResource
SizeofResource
WideCharToMultiByte
GetProcAddress
LoadLibraryA
QueryPerformanceFrequency
CreateFileW
user32
TabbedTextOutA
GrayStringA
DrawTextExA
DrawTextA
SystemParametersInfoA
SetParent
IsRectEmpty
DeleteMenu
AppendMenuA
GetSystemMenu
GetSystemMetrics
IsZoomed
MapVirtualKeyA
GetKeyNameTextA
DestroyCursor
LoadCursorW
LoadCursorA
SetRect
ShowOwnedPopups
GetCursorPos
TranslateMessage
GetMessageA
GetNextDlgTabItem
EndDialog
CreateDialogIndirectParamA
LoadAcceleratorsW
MapDialogRect
SetWindowContextHelpId
PostQuitMessage
SetCapture
IsDialogMessageA
SetWindowTextA
SendDlgItemMessageA
CheckDlgButton
SetDlgItemTextA
MoveWindow
SetMenuItemInfoA
GetMenuCheckMarkDimensions
SetMenuItemBitmaps
EnableMenuItem
CheckMenuItem
GetMonitorInfoA
MonitorFromWindow
GetScrollInfo
SetScrollInfo
LoadIconA
CallNextHookEx
UnhookWindowsHookEx
SetWindowsHookExA
GetTopWindow
GetClassLongPtrA
GetClassLongA
SetWindowLongPtrA
GetWindowLongPtrA
PtInRect
MapWindowPoints
ScreenToClient
MessageBoxA
GetWindowTextLengthA
GetWindowTextA
RemovePropA
GetPropA
GetWindowDC
ShowScrollBar
GetScrollRange
SetScrollRange
GetScrollPos
SetScrollPos
ScrollWindow
ValidateRect
EndPaint
BeginPaint
SetForegroundWindow
GetForegroundWindow
TrackPopupMenu
GetFocus
EndDeferWindowPos
DeferWindowPos
BeginDeferWindowPos
SetWindowPlacement
DestroyWindow
IsChild
IsMenu
GetClassInfoExA
RegisterClassA
CallWindowProcA
DefWindowProcA
GetMessageTime
GetMessagePos
DispatchMessageA
RegisterWindowMessageA
ReuseDDElParam
UnpackDDElParam
WinHelpA
LoadImageA
DestroyIcon
LoadIconW
GetWindow
GetLastActivePopup
GetWindowThreadProcessId
GetClassNameA
PostThreadMessageA
GetDCEx
UpdateWindow
EnableWindow
GetWindowRect
OffsetRect
SendMessageA
GetDesktopWindow
EqualRect
IntersectRect
SetRectEmpty
SetCursor
InvalidateRect
SetActiveWindow
InsertMenuItemA
DestroyMenu
SetMenu
LoadAcceleratorsA
IsWindowEnabled
ReleaseCapture
GetCapture
GetKeyState
SetFocus
ClientToScreen
GetMenuStringA
GetMenuItemInfoA
InflateRect
RealChildWindowFromPoint
UnionRect
GetSysColorBrush
CopyImage
GetAsyncKeyState
CharUpperA
SetTimer
KillTimer
CharNextA
CopyAcceleratorTableA
InvalidateRgn
GetDlgCtrlID
GetDlgItem
IsIconic
IsWindowVisible
GetNextDlgGroupItem
MessageBeep
DrawIcon
SetWindowRgn
WindowFromPoint
SetPropA
GetTabbedTextExtentW
LoadBitmapW
GetSysColor
LoadMenuW
CreatePopupMenu
CreateMenu
LoadMenuA
GetMenuItemCount
GetMenuItemID
GetMenuState
GetSubMenu
GetDC
InsertMenuA
ReleaseDC
ModifyMenuA
RemoveMenu
CopyRect
FillRect
DrawStateA
UnregisterClassA
CreateWindowExA
IsWindow
SetWindowPos
BringWindowToTop
GetActiveWindow
TranslateAcceleratorA
GetMenu
DrawMenuBar
RedrawWindow
GetClientRect
AdjustWindowRectEx
GetWindowLongA
SetWindowLongA
GetParent
DefFrameProcA
DefMDIChildProcA
TranslateMDISysAccel
PeekMessageA
PostMessageA
GetClassInfoA
ShowWindow
LockWindowUpdate
TrackMouseEvent
LoadImageW
RegisterClipboardFormatA
GetMenuDefaultItem
WaitMessage
GetWindowRgn
SubtractRect
GetUpdateRect
CharUpperBuffA
GetDoubleClickTime
SetMenuDefaultItem
DestroyAcceleratorTable
CreateAcceleratorTableA
ToAsciiEx
GetKeyboardState
MapVirtualKeyExA
IsCharLowerA
GetKeyboardLayout
GetComboBoxInfo
MonitorFromPoint
UpdateLayeredWindow
FrameRect
CopyIcon
SetCursorPos
DrawFrameControl
DrawEdge
EmptyClipboard
SetClipboardData
CloseClipboard
OpenClipboard
SetClassLongPtrA
EnumDisplayMonitors
SetLayeredWindowAttributes
NotifyWinEvent
InvertRect
HideCaret
EnableScrollBar
GetIconInfo
DrawIconEx
DrawFocusRect
GetWindowPlacement
IsClipboardFormatAvailable
gdi32
GetViewportOrgEx
PatBlt
CreateRectRgnIndirect
SelectObject
GetTextMetricsA
CreateFontA
DeleteObject
GetCharWidthA
StretchDIBits
BitBlt
CreateHatchBrush
CreatePatternBrush
CreateRectRgn
CreateSolidBrush
Escape
ExcludeClipRect
GetClipBox
GetCurrentPositionEx
GetObjectType
GetPixel
GetViewportExtEx
GetWindowExtEx
IntersectClipRect
LineTo
PtVisible
RectVisible
RestoreDC
SaveDC
SelectClipRgn
ExtSelectClipRgn
SelectPalette
SetBkMode
SetMapMode
SetLayout
GetLayout
SetPolyFillMode
SetROP2
SetStretchBltMode
SetTextAlign
MoveToEx
TextOutA
ExtTextOutA
GetStockObject
SetViewportExtEx
SetViewportOrgEx
SetWindowExtEx
SetWindowOrgEx
OffsetViewportOrgEx
OffsetWindowOrgEx
ScaleViewportExtEx
ScaleWindowExtEx
CopyMetaFileA
CombineRgn
GetMapMode
SetRectRgn
GetBkColor
GetTextColor
GetRgnBox
CreateEllipticRgn
Ellipse
CreateDIBSection
LPtoDP
GetROP2
GetBkMode
GetNearestColor
GetPolyFillMode
GetStretchBltMode
GetTextAlign
GetTextExtentPointA
GetTextExtentPoint32W
GetWindowOrgEx
GetTextFaceA
EnumFontFamiliesExA
CreatePalette
GetNearestPaletteIndex
GetPaletteEntries
GetSystemPaletteEntries
RealizePalette
CreateDIBitmap
EnumFontFamiliesA
GetTextCharsetInfo
SetPixel
StretchBlt
SetDIBColorTable
CreatePolygonRgn
Polygon
Polyline
CreateRoundRectRgn
OffsetRgn
RoundRect
FillRgn
FrameRgn
GetBoundsRect
PtInRegion
ExtFloodFill
SetPaletteEntries
SetPixelV
CreatePen
DPtoLP
SetAbortProc
AbortDoc
EndPage
StartPage
EndDoc
StartDocA
GetDeviceCaps
DeleteDC
CreateDCA
CreateFontIndirectA
CreateBitmap
GetObjectA
SetTextColor
SetBkColor
CreateCompatibleDC
CreateCompatibleBitmap
Rectangle
GetTextExtentPoint32A
msimg32
TransparentBlt
AlphaBlend
winspool.drv
DocumentPropertiesA
OpenPrinterA
ClosePrinter
GetJobA
advapi32
RegEnumKeyA
GetFileSecurityA
RegCloseKey
RegEnumKeyExA
RegEnumValueA
RegOpenKeyExW
RegSetValueA
RegQueryValueA
SetFileSecurityA
RegSetValueExA
RegDeleteValueA
RegDeleteKeyA
RegCreateKeyExA
RegQueryValueExA
RegOpenKeyExA
shell32
DragQueryFileA
DragFinish
SHGetFileInfoA
SHAddToRecentDocs
ExtractIconA
SHGetPathFromIDListA
SHAppBarMessage
SHBrowseForFolderA
DragAcceptFiles
ShellExecuteA
SHGetDesktopFolder
SHGetSpecialFolderLocation
comctl32
ImageList_Draw
ImageList_Add
ImageList_GetImageInfo
shlwapi
PathFindFileNameA
PathRemoveExtensionA
PathIsUNCA
PathStripToRootA
PathRemoveFileSpecW
PathFindExtensionA
StrFormatKBSizeA
uxtheme
GetThemeSysColor
GetWindowTheme
GetCurrentThemeName
GetThemeColor
DrawThemeBackground
IsThemeBackgroundPartiallyTransparent
DrawThemeParentBackground
DrawThemeText
OpenThemeData
CloseThemeData
GetThemePartSize
IsAppThemed
ole32
CoDisconnectObject
RegisterDragDrop
OleDestroyMenuDescriptor
OleCreateMenuDescriptor
OleTranslateAccelerator
IsAccelerator
CoFreeUnusedLibraries
OleInitialize
OleUninitialize
OleGetClipboard
CoLockObjectExternal
CoInitializeEx
CreateILockBytesOnHGlobal
StgOpenStorageOnILockBytes
StgCreateDocfileOnILockBytes
CoGetClassObject
CreateStreamOnHGlobal
ReleaseStgMedium
OleDuplicateData
StringFromCLSID
CoInitialize
CoCreateInstance
CLSIDFromProgID
CLSIDFromString
CoCreateGuid
CoUninitialize
CoTaskMemFree
CoTaskMemAlloc
OleLockRunning
CoRevokeClassObject
OleFlushClipboard
OleIsCurrentClipboard
CoRegisterMessageFilter
DoDragDrop
RevokeDragDrop
oleaut32
SysAllocString
SysStringLen
SystemTimeToVariantTime
VariantTimeToSystemTime
SafeArrayDestroy
LoadTypeLi
OleCreateFontIndirect
VariantCopy
VarBstrFromDate
SysAllocStringByteLen
VariantChangeType
SysFreeString
VariantClear
VariantInit
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: 2.0MB - Virtual size: 2.0MB
IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ
.rdata Size: 665KB - Virtual size: 665KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
.data Size: 1.9MB - Virtual size: 1.9MB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE
.pdata Size: 94KB - Virtual size: 94KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
.gfids Size: 108KB - Virtual size: 108KB
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: 380KB - Virtual size: 379KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
.reloc Size: 62KB - Virtual size: 62KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ