2024-03-19_8e67a9af51c075b2ab812a806441117d_ryuk

Sharing

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General

Target

2024-03-19_8e67a9af51c075b2ab812a806441117d_ryuk
Size

5.2MB
MD5

8e67a9af51c075b2ab812a806441117d
SHA1

b7b2dd167926760583adff24030164aa4ab74df4
SHA256

0699e7e52792954da0ab8292c6b61016b4772e4ca4d57569b117e1d90f5676e8
SHA512

f48c30bf28734966099c6f85b7abb0a4fb0b244dbd3a2585c6eeb0ab82a8205a9bf191a4c087c2cb97bb3c7bfbe63e7f5db0aec9ad1f4db9e65c14d5112c2ac3
SSDEEP

98304:HDAe0VRbEeUEd4qIRhByVzFJ3+WxNo7un379QMnrq0cwe:HDxkxIEn+WxacuNd

Score

3^/10

Malware Config

Signatures

Unsigned PE 1 IoCs

Checks for missing Authenticode signature.

resource
2024-03-19_8e67a9af51c075b2ab812a806441117d_ryuk

Files

2024-03-19_8e67a9af51c075b2ab812a806441117d_ryuk
.exe windows:5 windows x64 arch:x64

e3edcff4ce3fda3e8ba3e989cd1eb922

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

IsValidCodePage
FindNextFileA
FindFirstFileExA
SetFilePointerEx
GetConsoleMode
GetConsoleCP
GetTimeZoneInformation
LCMapStringW
GetStringTypeW
GetStdHandle
GetEnvironmentStringsW
GetFileType
SetStdHandle
QueryPerformanceFrequency
HeapQueryInformation
FreeLibraryAndExitThread
ExitThread
CreateThread
GetCommandLineW
GetCommandLineA
VirtualQuery
VirtualAlloc
GetSystemInfo
RtlUnwindEx
RtlPcToFileHeader
OutputDebugStringW
FreeEnvironmentStringsW
SetEnvironmentVariableA
WriteConsoleW
InitializeSListHead
GetSystemTimeAsFileTime
QueryPerformanceCounter
GetStartupInfoW
IsDebuggerPresent
IsProcessorFeaturePresent
TerminateProcess
SetUnhandledExceptionFilter
UnhandledExceptionFilter
RtlVirtualUnwind
RtlLookupFunctionEntry
RtlCaptureContext
CreateEventW
WaitForSingleObjectEx
ResetEvent
Sleep
SearchPathA
GetTempPathA
GetProfileIntA
VerifyVersionInfoA
VerSetConditionMask
GetTickCount
FindResourceExW
GetWindowsDirectoryA
lstrcpyA
GetCurrentDirectoryA
SetErrorMode
SystemTimeToTzSpecificLocalTime
LocalFileTimeToFileTime
GetFileSizeEx
GetFileAttributesExA
FileTimeToLocalFileTime
GetCPInfo
GetOEMCP
VirtualProtect
GetUserDefaultUILanguage
GetSystemDefaultUILanguage
GetLocaleInfoW
CompareStringW
LocalReAlloc
LocalAlloc
GlobalHandle
GlobalReAlloc
TlsFree
TlsSetValue
TlsGetValue
TlsAlloc
InitializeCriticalSection
FileTimeToSystemTime
GlobalFlags
GetACP
SystemTimeToFileTime
ReplaceFileA
GetTempFileNameA
SetFileTime
GetFileTime
GetFileAttributesA
GetDiskFreeSpaceA
ResumeThread
SetThreadPriority
WaitForSingleObject
SetEvent
WritePrivateProfileStringA
GetPrivateProfileStringA
GetPrivateProfileIntA
GetCurrentThread
lstrcmpA
LeaveCriticalSection
EnterCriticalSection
GetStringTypeExA
GetThreadLocale
GetVolumeInformationA
MoveFileA
lstrcmpiA
GetShortPathNameA
LoadLibraryExA
GetModuleHandleA
GetModuleFileNameA
GetCurrentProcess
DuplicateHandle
CloseHandle
WriteFile
UnlockFile
SetFilePointer
SetEndOfFile
ReadFile
LockFile
GetFullPathNameA
GetFileSize
FlushFileBuffers
FindFirstFileA
FindClose
DeleteFileA
CreateFileA
GetVersionExA
GetCurrentProcessId
CompareStringA
GlobalGetAtomNameA
GlobalFindAtomA
GlobalAddAtomA
lstrcmpW
GlobalDeleteAtom
LoadLibraryExW
GetModuleHandleW
FreeLibrary
GetSystemDirectoryW
GetCurrentThreadId
EncodePointer
FindResourceW
FormatMessageA
MulDiv
LocalFree
GlobalSize
WideCharToMultiByte
MultiByteToWideChar
QueryActCtxW
FindActCtxSectionStringW
DeactivateActCtx
ActivateActCtx
CreateActCtxW
LoadLibraryW
LockResource
GetModuleHandleExW
GetModuleFileNameW
SetLastError
OutputDebugStringA
CopyFileA
CreateDirectoryA
GetProcAddress
LoadLibraryA
GetProcessHeap
DeleteCriticalSection
DecodePointer
HeapAlloc
RaiseException
HeapReAlloc
GetLastError
HeapSize
InitializeCriticalSectionAndSpinCount
HeapFree
FreeResource
LoadResource
SizeofResource
FindResourceA
GlobalFree
GlobalUnlock
GlobalLock
ExitProcess
GlobalAlloc
CreateFileW

user32

DestroyCursor
LoadCursorA
ShowOwnedPopups
TranslateMessage
GetMessageA
MapDialogRect
SetWindowContextHelpId
PostQuitMessage
GetCursorPos
SetWindowRgn
DrawIcon
KillTimer
SetTimer
SetCapture
InflateRect
CharUpperA
FillRect
ClientToScreen
GetWindowDC
TabbedTextOutA
GrayStringA
DrawTextExA
DrawTextA
SystemParametersInfoA
SetParent
IsRectEmpty
DeleteMenu
GetSystemMenu
GetSystemMetrics
IsZoomed
ReuseDDElParam
UnpackDDElParam
LoadImageA
DestroyIcon
GetWindowThreadProcessId
IntersectRect
SetRectEmpty
InsertMenuItemA
DestroyMenu
CreatePopupMenu
LoadMenuA
TranslateAcceleratorA
LoadAcceleratorsA
ReleaseCapture
BringWindowToTop
IsDialogMessageA
SetWindowTextA
SendDlgItemMessageA
IsDlgButtonChecked
CheckDlgButton
SetDlgItemTextA
MoveWindow
ShowWindow
LoadBitmapW
SetMenuItemInfoA
GetMenuCheckMarkDimensions
SetMenuItemBitmaps
EnableMenuItem
CheckMenuItem
GetMonitorInfoA
MonitorFromWindow
WinHelpA
GetScrollInfo
SetScrollInfo
LoadIconW
LoadIconA
CallNextHookEx
UnhookWindowsHookEx
SetWindowsHookExA
GetKeyNameTextA
GetTopWindow
GetClassNameA
GetClassLongPtrA
GetClassLongA
SetWindowLongPtrA
GetWindowLongPtrA
SetWindowLongA
EqualRect
GetSysColor
MapWindowPoints
ScreenToClient
UnionRect
AdjustWindowRectEx
RemovePropA
GetPropA
SetPropA
ShowScrollBar
GetScrollRange
SetScrollRange
ScrollWindow
RedrawWindow
ValidateRect
EndPaint
BeginPaint
SetForegroundWindow
GetForegroundWindow
TrackPopupMenu
SetMenu
GetMenu
GetCapture
GetKeyState
GetFocus
GetDlgCtrlID
IsIconic
IsWindowVisible
EndDeferWindowPos
WindowFromPoint
GetDCEx
LockWindowUpdate
EnableWindow
GetWindowRect
InvalidateRect
SetRect
UnregisterClassA
DeferWindowPos
BeginDeferWindowPos
SetWindowPlacement
GetWindowPlacement
SetWindowPos
IsChild
IsMenu
CreateWindowExA
GetClassInfoExA
GetClassInfoA
RegisterClassA
CallWindowProcA
DefWindowProcA
PostMessageA
GetMessageTime
GetMessagePos
CharNextA
CopyAcceleratorTableA
GetNextDlgGroupItem
MessageBeep
LoadAcceleratorsW
LoadMenuW
GetTabbedTextExtentW
PostThreadMessageA
CreateMenu
TrackMouseEvent
LoadImageW
GetIconInfo
GetMenuDefaultItem
MapVirtualKeyA
RealChildWindowFromPoint
GetSysColorBrush
GetMenuItemInfoA
CopyImage
GetLastActivePopup
GetAsyncKeyState
InvalidateRgn
CopyRect
GetDC
ReleaseDC
OffsetRect
UpdateWindow
PtInRect
LoadCursorW
GetClientRect
SetCursor
SendMessageA
IsWindow
DestroyWindow
CreateDialogIndirectParamA
EndDialog
GetDlgItem
GetNextDlgTabItem
GetActiveWindow
IsWindowEnabled
SetActiveWindow
GetWindowLongA
GetDesktopWindow
GetParent
GetMenuStringA
GetMenuState
GetSubMenu
GetMenuItemID
GetMenuItemCount
InsertMenuA
AppendMenuA
RemoveMenu
SetFocus
SetScrollPos
GetScrollPos
GetWindowTextA
GetWindowTextLengthA
GetWindow
RegisterWindowMessageA
DispatchMessageA
PeekMessageA
RegisterClipboardFormatA
WaitMessage
IsClipboardFormatAvailable
DrawFocusRect
DrawIconEx
GetWindowRgn
SubtractRect
TranslateMDISysAccel
DefMDIChildProcA
DefFrameProcA
DrawMenuBar
GetUpdateRect
CharUpperBuffA
ModifyMenuA
GetDoubleClickTime
SetMenuDefaultItem
DestroyAcceleratorTable
CreateAcceleratorTableA
ToAsciiEx
GetKeyboardState
MapVirtualKeyExA
IsCharLowerA
GetKeyboardLayout
GetComboBoxInfo
MonitorFromPoint
UpdateLayeredWindow
FrameRect
CopyIcon
SetCursorPos
DrawFrameControl
DrawEdge
DrawStateA
EmptyClipboard
SetClipboardData
CloseClipboard
OpenClipboard
SetClassLongPtrA
EnumDisplayMonitors
SetLayeredWindowAttributes
NotifyWinEvent
InvertRect
HideCaret
EnableScrollBar
MessageBoxA

gdi32

CreateCompatibleDC
SelectObject
GetTextMetricsA
CreateFontA
DeleteDC
DeleteObject
GetCharWidthA
StretchDIBits
BitBlt
CreateHatchBrush
CreatePatternBrush
CreateRectRgn
Escape
ExcludeClipRect
GetClipBox
GetCurrentPositionEx
GetObjectType
GetPixel
GetStockObject
GetViewportExtEx
GetWindowExtEx
IntersectClipRect
LineTo
PtVisible
RectVisible
RestoreDC
SaveDC
SelectClipRgn
ExtSelectClipRgn
SelectPalette
SetBkMode
SetMapMode
SetLayout
GetLayout
SetPolyFillMode
SetROP2
SetStretchBltMode
SetTextAlign
StartDocA
MoveToEx
TextOutA
ExtTextOutA
CreateCompatibleBitmap
SetViewportOrgEx
SetWindowExtEx
SetWindowOrgEx
OffsetViewportOrgEx
OffsetWindowOrgEx
ScaleViewportExtEx
ScaleWindowExtEx
CreateFontIndirectA
GetMapMode
PatBlt
SetRectRgn
DPtoLP
CreateEllipticRgn
CreateDIBSection
LPtoDP
EndDoc
StartPage
EndPage
AbortDoc
SetAbortProc
GetViewportOrgEx
Rectangle
GetBkColor
GetTextColor
GetRgnBox
GetROP2
GetBkMode
GetNearestColor
GetPolyFillMode
GetStretchBltMode
GetTextAlign
GetTextExtentPointA
GetTextExtentPoint32W
GetWindowOrgEx
GetTextFaceA
EnumFontFamiliesExA
CreatePalette
GetNearestPaletteIndex
GetPaletteEntries
GetSystemPaletteEntries
RealizePalette
CreateDIBitmap
EnumFontFamiliesA
GetTextCharsetInfo
SetPixel
StretchBlt
SetDIBColorTable
Polygon
Polyline
CreateRoundRectRgn
RoundRect
FillRgn
FrameRgn
GetBoundsRect
ExtFloodFill
SetPaletteEntries
SetPixelV
CreateBitmap
GetObjectA
SetTextColor
SetBkColor
GetDeviceCaps
CreateDCA
CopyMetaFileA
PtInRegion
CreatePolygonRgn
GetTextExtentPoint32A
CreateRectRgnIndirect
CombineRgn
Ellipse
CreateSolidBrush
SetViewportExtEx
OffsetRgn
CreatePen

msimg32

AlphaBlend
TransparentBlt

winspool.drv

DocumentPropertiesA
OpenPrinterA
ClosePrinter
GetJobA

advapi32

RegEnumValueA
GetFileSecurityA
SetFileSecurityA
RegQueryValueA
RegEnumKeyA
RegSetValueExA
RegDeleteValueA
RegDeleteKeyA
RegCreateKeyExA
RegQueryValueExA
RegOpenKeyExW
RegOpenKeyExA
RegSetValueA
RegCloseKey
RegEnumKeyExA

shell32

ShellExecuteA
SHGetDesktopFolder
SHGetSpecialFolderLocation
SHGetPathFromIDListA
ExtractIconA
SHAddToRecentDocs
SHGetFileInfoA
DragFinish
DragQueryFileA
DragAcceptFiles
SHAppBarMessage
SHBrowseForFolderA

shlwapi

PathStripToRootA
PathIsUNCA
PathRemoveFileSpecW
PathRemoveExtensionA
PathFindFileNameA
PathFindExtensionA
StrFormatKBSizeA

uxtheme

GetThemeSysColor
GetWindowTheme
GetCurrentThemeName
GetThemeColor
DrawThemeBackground
IsThemeBackgroundPartiallyTransparent
DrawThemeParentBackground
DrawThemeText
OpenThemeData
CloseThemeData
GetThemePartSize
IsAppThemed

ole32

CoInitialize
RevokeDragDrop
OleCreateMenuDescriptor
CreateILockBytesOnHGlobal
OleDestroyMenuDescriptor
OleTranslateAccelerator
IsAccelerator
CoFreeUnusedLibraries
OleInitialize
OleUninitialize
OleGetClipboard
CoLockObjectExternal
StgOpenStorageOnILockBytes
StgCreateDocfileOnILockBytes
CoGetClassObject
CoDisconnectObject
RegisterDragDrop
CLSIDFromProgID
CLSIDFromString
CoCreateGuid
CoCreateInstance
CoInitializeEx
CoUninitialize
ReleaseStgMedium
OleDuplicateData
CoTaskMemFree
CoTaskMemAlloc
StringFromCLSID
CreateStreamOnHGlobal
OleLockRunning
CoRevokeClassObject
OleFlushClipboard
OleIsCurrentClipboard
CoRegisterMessageFilter
DoDragDrop

oleaut32

VariantChangeType
SysStringLen
SystemTimeToVariantTime
VariantTimeToSystemTime
SafeArrayDestroy
VariantClear
VariantCopy
VarBstrFromDate
LoadTypeLi
OleCreateFontIndirect
SysAllocString
VariantInit
SysAllocStringLen
SysAllocStringByteLen
SysFreeString
OleLoadPicture

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: 2.1MB - Virtual size: 2.1MB

IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ

.rdata
Size: 678KB - Virtual size: 678KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.data
Size: 2.1MB - Virtual size: 2.2MB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

.pdata
Size: 98KB - Virtual size: 97KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.gfids
Size: 109KB - 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: 52KB - Virtual size: 51KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.reloc
Size: 63KB - Virtual size: 63KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ

Sharing

General

Malware Config

Signatures

Files

e3edcff4ce3fda3e8ba3e989cd1eb922

Headers

DLL Characteristics

File Characteristics

Imports

kernel32

user32

gdi32

msimg32

winspool.drv

advapi32

shell32

shlwapi

uxtheme

ole32

oleaut32

oledlg

oleacc

gdiplus

imm32

winmm

Sections

.text Size: 2.1MB - Virtual size: 2.1MB

.rdata Size: 678KB - Virtual size: 678KB

.data Size: 2.1MB - Virtual size: 2.2MB

.pdata Size: 98KB - Virtual size: 97KB

.gfids Size: 109KB - Virtual size: 108KB

.giats Size: 512B - Virtual size: 16B

.tls Size: 512B - Virtual size: 9B

.rsrc Size: 52KB - Virtual size: 51KB

.reloc Size: 63KB - Virtual size: 63KB

.text
Size: 2.1MB - Virtual size: 2.1MB

.rdata
Size: 678KB - Virtual size: 678KB

.data
Size: 2.1MB - Virtual size: 2.2MB

.pdata
Size: 98KB - Virtual size: 97KB

.gfids
Size: 109KB - Virtual size: 108KB

.giats
Size: 512B - Virtual size: 16B

.tls
Size: 512B - Virtual size: 9B

.rsrc
Size: 52KB - Virtual size: 51KB

.reloc
Size: 63KB - Virtual size: 63KB