Static task
static1
Behavioral task
behavioral1
Sample
2024-05-08_f63afdc0736adbebbb2fe451a64f060e_ryuk.exe
Resource
win7-20240221-en
General
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Target
2024-05-08_f63afdc0736adbebbb2fe451a64f060e_ryuk
-
Size
28.3MB
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MD5
f63afdc0736adbebbb2fe451a64f060e
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SHA1
b67c0d80700de2c261151ffaa95cc776bc3a7193
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SHA256
0710ae372aaf6bd6202d5e201563ea9d0debd7de9e3699e6016405a413aced1a
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SHA512
a35c1406d6a9e28969a73408a4b3647d594b6051d9cf8fd8244fcede86415d4075fd4a6b4bbabdd8493df7b896ca77a97a06f88a7e9c6a2d94210257abe9984c
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SSDEEP
393216:xbYv402oBDHkZmyTtvkJJhddL1ugGFPO2bacIGxfRu8/aJHYjzZSOn3P7zZmHs5T:CCSksUEESM4a4xYlvIovhBp
Malware Config
Signatures
-
Unsigned PE 1 IoCs
Checks for missing Authenticode signature.
resource 2024-05-08_f63afdc0736adbebbb2fe451a64f060e_ryuk
Files
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2024-05-08_f63afdc0736adbebbb2fe451a64f060e_ryuk.exe windows:5 windows x64 arch:x64
35f16994e1582b60ca4e722bacbae662
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
GetEnvironmentStringsW
IsValidCodePage
FindNextFileW
FindFirstFileExW
FindFirstFileExA
GetDriveTypeW
SetFilePointerEx
ReadConsoleW
GetConsoleMode
GetConsoleCP
GetTimeZoneInformation
EnumSystemLocalesW
IsValidLocale
LCMapStringW
GetTimeFormatW
GetDateFormatW
GetStringTypeW
GetStdHandle
FreeEnvironmentStringsW
QueryPerformanceFrequency
GetFullPathNameW
GetFileType
SetStdHandle
HeapQueryInformation
FreeLibraryAndExitThread
ExitThread
CreateThread
GetCommandLineW
GetCommandLineA
VirtualQuery
VirtualAlloc
GetSystemInfo
InterlockedFlushSList
InterlockedPushEntrySList
RtlUnwindEx
RtlPcToFileHeader
OutputDebugStringW
SetEnvironmentVariableA
SetEnvironmentVariableW
WriteConsoleW
SetConsoleCtrlHandler
SetCurrentDirectoryW
GetCurrentDirectoryW
InitializeSListHead
GetSystemTimeAsFileTime
QueryPerformanceCounter
GetStartupInfoW
IsDebuggerPresent
IsProcessorFeaturePresent
TerminateProcess
SetUnhandledExceptionFilter
UnhandledExceptionFilter
RtlVirtualUnwind
RtlLookupFunctionEntry
RtlCaptureContext
CreateEventW
WaitForSingleObjectEx
ResetEvent
LocalUnlock
LocalLock
GetUserDefaultLCID
ReplaceFileA
GetDiskFreeSpaceA
Sleep
SearchPathA
GetProfileIntA
GetTempFileNameA
GetTempPathA
GetTickCount
FindResourceExW
SetErrorMode
VerifyVersionInfoA
VerSetConditionMask
GetWindowsDirectoryA
GetCurrentDirectoryA
FindNextFileA
GetCPInfo
GetOEMCP
VirtualProtect
GetUserDefaultUILanguage
GetSystemDefaultUILanguage
GetLocaleInfoW
CompareStringW
SetFileTime
SetFileAttributesA
LocalFileTimeToFileTime
GetFileTime
GetFileSizeEx
GetFileAttributesExA
GetFileAttributesA
FileTimeToLocalFileTime
GetStringTypeExA
GetVolumeInformationA
MoveFileA
lstrcmpiA
GetShortPathNameA
LoadLibraryExA
GetCurrentProcess
DuplicateHandle
UnlockFile
SetFilePointer
SetEndOfFile
ReadFile
LockFile
GetFullPathNameA
GetFileSize
FlushFileBuffers
FindFirstFileA
FindClose
DeleteFileA
lstrcpyA
GlobalFlags
GetACP
GetThreadLocale
SystemTimeToFileTime
GetAtomNameA
LocalReAlloc
GlobalHandle
GlobalReAlloc
TlsFree
TlsSetValue
TlsGetValue
TlsAlloc
InitializeCriticalSection
WritePrivateProfileStringA
GetPrivateProfileStringA
GetPrivateProfileIntA
GetModuleHandleA
ResumeThread
SuspendThread
SetThreadPriority
CreateEventA
WaitForSingleObject
SetEvent
lstrcmpA
GetVersionExA
GetCurrentThread
GetModuleFileNameA
GetCurrentProcessId
FileTimeToSystemTime
SystemTimeToTzSpecificLocalTime
LocalAlloc
CompareStringA
GlobalGetAtomNameA
GlobalFindAtomA
GlobalAddAtomA
lstrcmpW
GlobalDeleteAtom
LoadLibraryExW
GetModuleHandleW
GetSystemDirectoryW
GetCurrentThreadId
EncodePointer
FreeLibrary
LeaveCriticalSection
EnterCriticalSection
QueryActCtxW
FindActCtxSectionStringW
DeactivateActCtx
ActivateActCtx
CreateActCtxW
FindResourceA
LoadLibraryW
GetModuleHandleExW
GetModuleFileNameW
FreeResource
MultiByteToWideChar
OutputDebugStringA
SetLastError
CopyFileA
FormatMessageA
MulDiv
LocalFree
GlobalFree
GlobalUnlock
GlobalLock
GlobalSize
GlobalAlloc
lstrcatA
CloseHandle
WriteFile
CreateFileA
GetProcAddress
LoadLibraryA
GetProcessHeap
DeleteCriticalSection
HeapDestroy
DecodePointer
HeapAlloc
RaiseException
HeapReAlloc
HeapSize
InitializeCriticalSectionAndSpinCount
HeapFree
GetLastError
FindResourceW
LoadResource
LockResource
SizeofResource
WideCharToMultiByte
ExitProcess
CreateFileW
user32
IsRectEmpty
SetRect
InvalidateRgn
CopyAcceleratorTableA
CharNextA
DeleteMenu
LoadCursorW
WindowFromPoint
ReleaseCapture
SetCapture
GetAsyncKeyState
CopyImage
IntersectRect
CharUpperA
LoadImageW
DestroyIcon
InvalidateRect
TrackMouseEvent
RealChildWindowFromPoint
GetDialogBaseUnits
LoadCursorA
GetSysColorBrush
SystemParametersInfoA
InflateRect
GetMenuItemInfoA
DestroyMenu
SetCursor
ShowOwnedPopups
GetCursorPos
TranslateMessage
GetMessageA
MapDialogRect
SetWindowContextHelpId
PostQuitMessage
GetWindowThreadProcessId
LoadBitmapW
SetMenuItemInfoA
GetMenuCheckMarkDimensions
SetMenuItemBitmaps
EnableMenuItem
CheckMenuItem
GetMonitorInfoA
MonitorFromWindow
WinHelpA
GetScrollInfo
SetScrollInfo
LoadIconA
CallNextHookEx
UnhookWindowsHookEx
SetWindowsHookExA
GetLastActivePopup
GetTopWindow
GetClassNameA
GetClassLongPtrA
GetClassLongA
SetWindowLongPtrA
GetWindowLongPtrA
PtInRect
EqualRect
MapWindowPoints
AdjustWindowRectEx
RemovePropA
GetPropA
SetPropA
ShowScrollBar
GetScrollRange
GetNextDlgGroupItem
GetScrollPos
SetScrollPos
ScrollWindow
RedrawWindow
ValidateRect
SetForegroundWindow
GetForegroundWindow
TrackPopupMenuEx
TrackPopupMenu
SetMenu
GetMenu
GetCapture
GetKeyState
IsWindowVisible
EndDeferWindowPos
DeferWindowPos
BeginDeferWindowPos
SetWindowPlacement
GetWindowPlacement
IsChild
IsZoomed
CreateWindowExA
GetClassInfoExA
GetClassInfoA
RegisterClassA
CallWindowProcA
DefWindowProcA
GetMessageTime
GetMessagePos
RegisterWindowMessageA
FillRect
GetSysColor
ScreenToClient
ClientToScreen
EndPaint
BeginPaint
GetWindowDC
TabbedTextOutA
GrayStringA
DrawTextExA
DrawTextA
LoadMenuW
BringWindowToTop
SetCursorPos
MessageBoxA
SendMessageA
SetTimer
GetWindowRect
EnableWindow
CopyRect
ReleaseDC
GetDC
MapVirtualKeyA
GetKeyNameTextA
WaitMessage
PeekMessageA
DispatchMessageA
IsDialogMessageA
GetWindow
SetWindowLongA
GetWindowTextLengthA
GetWindowTextA
SetWindowTextA
ScrollWindowEx
GetFocus
MessageBeep
CreatePopupMenu
GetMenuDefaultItem
DrawFocusRect
LoadImageA
DrawIconEx
GetIconInfo
EnableScrollBar
HideCaret
InvertRect
NotifyWinEvent
SetLayeredWindowAttributes
EnumDisplayMonitors
SetClassLongPtrA
SetWindowRgn
SetFocus
GetDlgCtrlID
SetParent
OpenClipboard
CloseClipboard
SetClipboardData
EmptyClipboard
DrawStateA
DrawEdge
SetScrollRange
DrawFrameControl
PostMessageA
LoadIconW
KillTimer
UpdateWindow
UnregisterClassA
GetSystemMenu
AppendMenuA
IsIconic
GetSystemMetrics
GetClientRect
DrawIcon
GetMenuStringA
GetMenuState
GetSubMenu
GetMenuItemID
GetMenuItemCount
InsertMenuA
RemoveMenu
IsWindow
DestroyWindow
CreateDialogIndirectParamA
EndDialog
GetDlgItem
GetNextDlgTabItem
UnpackDDElParam
GetActiveWindow
IsWindowEnabled
SetActiveWindow
GetWindowLongA
GetDesktopWindow
GetParent
SendDlgItemMessageA
SetRectEmpty
OffsetRect
ShowWindow
MoveWindow
SetWindowPos
SetDlgItemInt
GetDlgItemInt
SetDlgItemTextA
GetDlgItemTextA
CheckDlgButton
CheckRadioButton
IsDlgButtonChecked
CopyIcon
FrameRect
LoadAcceleratorsA
TranslateAcceleratorA
LoadMenuA
InsertMenuItemA
GetMenuBarInfo
GetTabbedTextExtentW
GetTabbedTextExtentA
GetDCEx
DestroyCursor
GetWindowRgn
WindowFromDC
CreateMenu
InSendMessage
MonitorFromRect
SendNotifyMessageA
SubtractRect
TranslateMDISysAccel
DefMDIChildProcA
DefFrameProcA
DrawMenuBar
EnumChildWindows
GetUpdateRect
IsClipboardFormatAvailable
CharUpperBuffA
ModifyMenuA
GetDoubleClickTime
SetMenuDefaultItem
LockWindowUpdate
DestroyAcceleratorTable
CreateAcceleratorTableA
LoadAcceleratorsW
ToAsciiEx
GetKeyboardState
MapVirtualKeyExA
IsCharLowerA
GetKeyboardLayout
PostThreadMessageA
GetComboBoxInfo
MonitorFromPoint
UpdateLayeredWindow
UnionRect
RegisterClipboardFormatA
ReuseDDElParam
IsMenu
gdi32
GetClipBox
GetClipRgn
GetCurrentPositionEx
GetObjectType
GetPixel
GetStockObject
GetViewportExtEx
GetWindowExtEx
IntersectClipRect
LineTo
OffsetClipRgn
PlayMetaFile
PtVisible
RectVisible
RestoreDC
SaveDC
ExtSelectClipRgn
SelectObject
SelectPalette
SetBkColor
SetBkMode
SetMapperFlags
SetGraphicsMode
SetMapMode
SetLayout
GetLayout
SetPolyFillMode
SetROP2
SetStretchBltMode
SetTextCharacterExtra
SetTextColor
SetTextAlign
SetTextJustification
PlayMetaFileRecord
EnumMetaFile
SetWorldTransform
ModifyWorldTransform
SetColorAdjustment
StartDocA
ArcTo
PolyDraw
SelectClipPath
SetArcDirection
ExtCreatePen
GetObjectA
MoveToEx
TextOutA
ExtTextOutA
PolyBezierTo
PolylineTo
SetViewportExtEx
SetViewportOrgEx
SetWindowExtEx
SetWindowOrgEx
OffsetViewportOrgEx
OffsetWindowOrgEx
ScaleViewportExtEx
ScaleWindowExtEx
CreateFontIndirectA
GetTextExtentPoint32A
GetTextMetricsA
ExcludeClipRect
GetMapMode
SetRectRgn
DPtoLP
GetBkColor
GetTextColor
GetRgnBox
CreatePalette
GetNearestPaletteIndex
GetPaletteEntries
GetSystemPaletteEntries
RealizePalette
CreateCompatibleBitmap
CreateDIBitmap
EnumFontFamiliesA
GetTextCharsetInfo
GetDIBits
SetPixel
StretchBlt
CreateDIBSection
SetDIBColorTable
CreateEllipticRgn
Ellipse
CreatePolygonRgn
Polygon
Polyline
CreateRoundRectRgn
LPtoDP
EnumFontFamiliesExA
Rectangle
OffsetRgn
GetCurrentObject
CreateFontA
GetCharWidthA
StretchDIBits
RoundRect
FillRgn
FrameRgn
GetBoundsRect
PtInRegion
ExtFloodFill
SetPaletteEntries
SetPixelV
GetWindowOrgEx
GetViewportOrgEx
CloseMetaFile
CreateMetaFileA
DeleteMetaFile
EndDoc
StartPage
EndPage
AbortDoc
SetAbortProc
GetROP2
GetBkMode
GetNearestColor
GetPolyFillMode
GetStretchBltMode
GetTextAlign
GetTextExtentPointA
GetTextExtentPoint32W
GetTextFaceA
Escape
DeleteObject
CreateSolidBrush
CreateRectRgn
CreatePatternBrush
CreatePen
CreateHatchBrush
CreateDIBPatternBrushPt
CreateCompatibleDC
CreateBitmap
BitBlt
PatBlt
CreateRectRgnIndirect
DeleteDC
GetDeviceCaps
CreateDCA
CombineRgn
SelectClipRgn
CopyMetaFileA
msimg32
TransparentBlt
AlphaBlend
winspool.drv
ClosePrinter
GetJobA
OpenPrinterA
DocumentPropertiesA
advapi32
RegEnumKeyA
GetFileSecurityA
SetFileSecurityA
RegEnumKeyExA
RegEnumValueA
RegOpenKeyExW
RegQueryValueA
RegCloseKey
RegSetValueExA
RegDeleteValueA
RegDeleteKeyA
RegCreateKeyExA
RegQueryValueExA
RegOpenKeyExA
RegSetValueA
shell32
SHBrowseForFolderA
SHGetFileInfoA
SHAddToRecentDocs
ExtractIconA
SHGetPathFromIDListA
SHGetSpecialFolderLocation
SHGetDesktopFolder
ShellExecuteA
ShellExecuteExA
SHAppBarMessage
SHGetSpecialFolderPathA
SHGetMalloc
DragFinish
DragQueryFileA
comctl32
ImageList_ReplaceIcon
shlwapi
PathFindExtensionA
PathFindFileNameA
PathRemoveExtensionA
PathIsUNCA
PathStripToRootA
StrFormatKBSizeA
UrlUnescapeA
PathRemoveFileSpecW
uxtheme
GetThemeColor
GetThemePartSize
GetThemeSysColor
DrawThemeText
DrawThemeParentBackground
OpenThemeData
CloseThemeData
DrawThemeBackground
GetCurrentThemeName
IsThemeBackgroundPartiallyTransparent
GetWindowTheme
IsAppThemed
ole32
OleFlushClipboard
OleIsCurrentClipboard
DoDragDrop
OleGetClipboard
CoLockObjectExternal
RegisterDragDrop
RevokeDragDrop
PropVariantCopy
CoRegisterClassObject
CoRevokeClassObject
CoRegisterMessageFilter
OleSetMenuDescriptor
OleLockRunning
StgCreateDocfile
StgOpenStorage
StgIsStorageFile
CreateFileMoniker
OleCreateMenuDescriptor
OleDestroyMenuDescriptor
OleTranslateAccelerator
IsAccelerator
OleRegGetMiscStatus
OleRegEnumVerbs
CreateGenericComposite
CreateItemMoniker
WriteClassStm
OleCreate
OleCreateFromData
CoInitializeEx
OleUninitialize
OleInitialize
CoFreeUnusedLibraries
OleCreateLinkFromData
OleCreateStaticFromData
OleRun
CreateStreamOnHGlobal
CreateILockBytesOnHGlobal
StgOpenStorageOnILockBytes
StgCreateDocfileOnILockBytes
CoGetClassObject
CoDisconnectObject
StringFromGUID2
CoInitialize
CoCreateInstance
CLSIDFromProgID
CLSIDFromString
CoCreateGuid
CoUninitialize
SetConvertStg
ReleaseStgMedium
OleDuplicateData
ReadFmtUserTypeStg
WriteFmtUserTypeStg
WriteClassStg
ReadClassStg
CreateBindCtx
CoTreatAsClass
CoTaskMemFree
CoTaskMemAlloc
StringFromCLSID
OleCreateLinkToFile
OleCreateFromFile
OleLoad
OleSave
OleSaveToStream
OleSetContainedObject
OleGetIconOfClass
GetHGlobalFromILockBytes
CreateDataAdviseHolder
CreateOleAdviseHolder
GetRunningObjectTable
OleIsRunning
CoGetMalloc
OleQueryLinkFromData
OleQueryCreateFromData
OleSetClipboard
OleRegGetUserType
oleaut32
LoadRegTypeLi
RegisterTypeLi
SysStringLen
SysReAllocStringLen
SystemTimeToVariantTime
VariantTimeToSystemTime
SafeArrayAllocDescriptor
SafeArrayAllocData
SafeArrayCreate
SafeArrayDestroyDescriptor
SafeArrayDestroyData
SafeArrayDestroy
SafeArrayRedim
SafeArrayGetDim
SafeArrayGetElemsize
SafeArrayGetUBound
SafeArrayGetLBound
LoadTypeLi
SafeArrayUnlock
SafeArrayAccessData
SafeArrayUnaccessData
SafeArrayGetElement
SafeArrayPutElement
SafeArrayCopy
SafeArrayPtrOfIndex
VariantCopy
VarDateFromStr
VarCyFromStr
VarBstrFromCy
VarBstrFromDate
VarBstrFromDec
VarDecFromStr
OleCreateFontIndirect
SysAllocString
VariantChangeType
VariantClear
SysAllocStringLen
VariantInit
SysAllocStringByteLen
SysStringByteLen
SafeArrayLock
SysFreeString
oledlg
ord8
ws2_32
send
sendto
socket
gethostbyname
WSAStartup
WSACleanup
WSASetLastError
WSAGetLastError
WSAAsyncSelect
setsockopt
accept
bind
closesocket
connect
getpeername
getsockname
htonl
htons
inet_addr
ntohs
recv
recvfrom
select
inet_ntoa
gdiplus
GdipCreateBitmapFromStreamICM
GdipCreateBitmapFromScan0
GdipBitmapLockBits
GdipBitmapUnlockBits
GdipDeleteGraphics
GdipDrawImageI
GdipCreateBitmapFromHBITMAP
GdipCreateFromHDC
GdipSetInterpolationMode
GdipDrawImageRectI
GdipCreateBitmapFromFile
GdipCreateBitmapFromStream
GdipGetImagePaletteSize
GdipGetImagePalette
GdipGetImagePixelFormat
GdipGetImageHeight
GdipGetImageWidth
GdipGetImageGraphicsContext
GdipDisposeImage
GdipCloneImage
GdiplusStartup
GdipFree
GdipAlloc
GdiplusShutdown
GdipCreateBitmapFromFileICM
oleacc
AccessibleObjectFromWindow
LresultFromObject
CreateStdAccessibleObject
wininet
InternetGetLastResponseInfoA
InternetQueryDataAvailable
InternetSetOptionA
InternetQueryOptionA
InternetFindNextFileA
InternetErrorDlg
InternetGetCookieA
InternetSetCookieA
HttpQueryInfoA
HttpEndRequestA
HttpSendRequestExA
HttpSendRequestA
HttpAddRequestHeadersA
HttpOpenRequestA
GopherGetAttributeA
GopherOpenFileA
GopherFindFirstFileA
GopherCreateLocatorA
FtpCommandA
FtpGetCurrentDirectoryA
FtpSetCurrentDirectoryA
FtpRemoveDirectoryA
FtpCreateDirectoryA
FtpOpenFileA
FtpRenameFileA
FtpDeleteFileA
FtpPutFileA
FtpGetFileA
FtpFindFirstFileA
InternetCrackUrlA
InternetCanonicalizeUrlA
InternetWriteFile
InternetSetFilePointer
InternetReadFile
InternetOpenUrlA
InternetConnectA
InternetCloseHandle
InternetOpenA
InternetSetStatusCallback
imm32
ImmGetContext
ImmGetOpenStatus
ImmReleaseContext
winmm
PlaySoundA
Sections
.text Size: 3.1MB - Virtual size: 3.1MB
IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ
.rdata Size: 9.1MB - Virtual size: 9.1MB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
.data Size: 15.7MB - Virtual size: 15.8MB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE
.pdata Size: 172KB - Virtual size: 172KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
.gfids Size: 140KB - Virtual size: 139KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
.giats Size: 512B - Virtual size: 28B
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: 24KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
.reloc Size: 79KB - Virtual size: 79KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ