2024-04-19_8cc4f5301654f47c694e73b72aa31244_ryuk

Sharing

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General

Target

2024-04-19_8cc4f5301654f47c694e73b72aa31244_ryuk
Size

5.5MB
MD5

8cc4f5301654f47c694e73b72aa31244
SHA1

8455260287c6b8ca55b943163dcb74be2de53003
SHA256

4080343b801bafa49fec15d29299cdb46b42a344326b3c412646d384c1b13080
SHA512

da8d81723f5375affdeeb34000de5baad051499fc8480fc2ca18fa4167648bfeb7af56ea26bf3d04132cf730558b46f641d84b612871f1fd804d7062220aac95
SSDEEP

98304:N+hX0EZ8XcvKMRBHP6YiE21eFDrlXdpyYPCn5DQMlUe7D+UBaZ:N+eMv3P67Zc1xJ85DQMlUe+oq

Score

3^/10

Malware Config

Signatures

Unsigned PE 1 IoCs

Checks for missing Authenticode signature.

resource
2024-04-19_8cc4f5301654f47c694e73b72aa31244_ryuk

Files

2024-04-19_8cc4f5301654f47c694e73b72aa31244_ryuk
.exe windows:5 windows x64 arch:x64

78f8cf3e4180f69ffc36670891a4d869

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

msimg32

GradientFill
AlphaBlend
TransparentBlt

kernel32

GetEnvironmentStringsW
IsValidCodePage
FindFirstFileExA
SetFilePointerEx
GetConsoleMode
GetConsoleCP
GetStringTypeW
GetTimeZoneInformation
LCMapStringW
FreeEnvironmentStringsW
GetFileType
SetStdHandle
QueryPerformanceFrequency
HeapQueryInformation
VirtualQuery
VirtualAlloc
GetSystemInfo
GetCommandLineW
GetCommandLineA
FreeLibraryAndExitThread
ExitThread
CreateThread
RtlPcToFileHeader
RtlUnwindEx
OutputDebugStringW
SetEnvironmentVariableA
ExitProcess
WriteConsoleW
InitializeSListHead
GetSystemTimeAsFileTime
QueryPerformanceCounter
GetStartupInfoW
IsDebuggerPresent
IsProcessorFeaturePresent
TerminateProcess
SetUnhandledExceptionFilter
UnhandledExceptionFilter
RtlVirtualUnwind
RtlLookupFunctionEntry
RtlCaptureContext
CreateEventW
WaitForSingleObjectEx
ResetEvent
Sleep
SearchPathA
GetProfileIntA
GetTempFileNameA
GetTempPathA
FindResourceExW
VerifyVersionInfoA
VerSetConditionMask
GetTickCount
GetFileTime
GetFileSizeEx
GetFileAttributesExA
GetFileAttributesA
SetErrorMode
GetWindowsDirectoryA
GetCPInfo
GetOEMCP
VirtualProtect
lstrcpyA
GetThreadLocale
GetVolumeInformationA
lstrcmpiA
GetCurrentProcess
DuplicateHandle
WriteFile
UnlockFile
SetFilePointer
SetEndOfFile
ReadFile
LockFile
GetFullPathNameA
GetFileSize
FlushFileBuffers
CreateFileA
DeleteFileA
GetUserDefaultUILanguage
GetSystemDefaultUILanguage
GetLocaleInfoW
CompareStringW
GetCurrentDirectoryA
LocalReAlloc
LocalAlloc
GlobalHandle
GlobalReAlloc
TlsFree
TlsSetValue
TlsGetValue
TlsAlloc
GetACP
InitializeCriticalSection
GlobalFlags
FileTimeToSystemTime
SystemTimeToTzSpecificLocalTime
FindNextFileA
FindFirstFileA
FindClose
FileTimeToLocalFileTime
GlobalGetAtomNameA
GlobalFindAtomA
lstrcmpW
GetSystemDirectoryW
EncodePointer
LeaveCriticalSection
EnterCriticalSection
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
WideCharToMultiByte
FindResourceW
LoadLibraryA
SizeofResource
LoadResource
GetProcAddress
LockResource
DeleteCriticalSection
InitializeCriticalSectionAndSpinCount
GetLastError
RaiseException
GetProcessHeap
HeapSize
HeapFree
HeapReAlloc
HeapAlloc
DecodePointer
GetStdHandle
CreateFileW

user32

BringWindowToTop
GetMenuDefaultItem
CreatePopupMenu
GetAsyncKeyState
LoadImageW
TrackMouseEvent
MessageBeep
GetNextDlgGroupItem
IsRectEmpty
SetRect
InvalidateRgn
CopyAcceleratorTableA
CharNextA
LoadCursorW
WindowFromPoint
ReleaseCapture
SetCapture
WaitMessage
CharUpperA
DestroyIcon
KillTimer
SetTimer
DeleteMenu
CopyImage
LoadCursorA
GetSysColorBrush
RealChildWindowFromPoint
MapVirtualKeyA
GetKeyNameTextA
IntersectRect
IsDialogMessageA
SetWindowTextA
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
TrackPopupMenu
SetMenu
GetMenu
GetCapture
SetFocus
GetDlgCtrlID
EndDeferWindowPos
DeferWindowPos
BeginDeferWindowPos
SetWindowPlacement
GetWindowPlacement
IsChild
IsMenu
LoadAcceleratorsA
GetClassInfoExA
GetClassInfoA
RegisterClassA
CallWindowProcA
DefWindowProcA
GetMessageTime
GetMessagePos
RegisterWindowMessageA
OffsetRect
SetRectEmpty
SendDlgItemMessageA
SystemParametersInfoA
InflateRect
CopyRect
GetMenuItemInfoA
DestroyMenu
FillRect
GetSysColor
ScreenToClient
ClientToScreen
UnregisterClassA
SendMessageA
IsIconic
EnableWindow
GetSystemMetrics
EndPaint
BeginPaint
ReleaseDC
GetWindowDC
GetDC
TabbedTextOutA
GrayStringA
DrawTextExA
DrawTextA
UnhookWindowsHookEx
RemoveMenu
InsertMenuA
GetMenuItemCount
GetMenuItemID
GetSubMenu
GetMenuState
TranslateAcceleratorA
LoadMenuA
InsertMenuItemA
LoadImageA
UnpackDDElParam
ReuseDDElParam
RegisterClipboardFormatA
DrawFocusRect
DrawIconEx
GetIconInfo
EnableScrollBar
HideCaret
InvertRect
GetMenuStringA
MapDialogRect
GetWindow
SetWindowContextHelpId
NotifyWinEvent
SetLayeredWindowAttributes
EnumDisplayMonitors
UnionRect
SetClassLongPtrA
SetWindowRgn
SetParent
OpenClipboard
GetSystemMenu
AppendMenuA
DrawIcon
InvalidateRect
GetClientRect
LoadIconW
GetFocus
GetWindowLongA
LoadBitmapW
CheckMenuItem
EnableMenuItem
SetMenuItemBitmaps
GetMenuCheckMarkDimensions
SetMenuItemInfoA
GetParent
IsWindow
DestroyWindow
CreateDialogIndirectParamA
EndDialog
GetDlgItem
GetNextDlgTabItem
GetActiveWindow
IsWindowEnabled
SetActiveWindow
GetDesktopWindow
GetMessageA
TranslateMessage
DispatchMessageA
PeekMessageA
IsWindowVisible
GetKeyState
ValidateRect
GetCursorPos
SetWindowsHookExA
CallNextHookEx
PostMessageA
PostQuitMessage
ShowOwnedPopups
SetCursor
MessageBoxA
GetWindowThreadProcessId
GetLastActivePopup
SetWindowPos
CloseClipboard
SetClipboardData
EmptyClipboard
DrawStateA
DrawEdge
DrawFrameControl
IsZoomed
LoadMenuW
SetCursorPos
CopyIcon
FrameRect
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
CreateWindowExA

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
MoveToEx
TextOutA
ExtTextOutA
SetViewportExtEx
SetViewportOrgEx
SetWindowExtEx
SetWindowOrgEx
OffsetViewportOrgEx
OffsetWindowOrgEx
ScaleViewportExtEx
ScaleWindowExtEx
CreateFontIndirectA
CombineRgn
ExcludeClipRect
GetMapMode
PatBlt
SetRectRgn
DPtoLP
GetTextMetricsA
GetTextColor
GetRgnBox
CreatePalette
GetNearestPaletteIndex
GetPaletteEntries
GetSystemPaletteEntries
RealizePalette
CreateDIBitmap
EnumFontFamiliesA
GetTextCharsetInfo
SetPixel
CreateDIBSection
SetDIBColorTable
CreateEllipticRgn
Ellipse
CreatePolygonRgn
Polygon
Polyline
CreateRoundRectRgn
LPtoDP
EnumFontFamiliesExA
Rectangle
OffsetRgn
RoundRect
FillRgn
FrameRgn
GetBoundsRect
PtInRegion
ExtFloodFill
SetPaletteEntries
SetPixelV
GetWindowOrgEx
GetViewportOrgEx
GetTextFaceA
Escape
DeleteObject
DeleteDC
CreateSolidBrush
CreateRectRgn
CreatePatternBrush
CreatePen
CreateHatchBrush
GetDeviceCaps
CreateDCA
CopyMetaFileA
CreateBitmap
GetObjectA
StretchBlt
GetTextExtentPoint32A
CreateCompatibleDC
CreateCompatibleBitmap
CreateRectRgnIndirect
BitBlt
CreateFontA
GetBkColor

winspool.drv

DocumentPropertiesA
OpenPrinterA
ClosePrinter

advapi32

RegOpenKeyExA
RegQueryValueExA
RegEnumKeyExA
RegEnumValueA
RegCloseKey
RegQueryValueA
RegEnumKeyA
RegSetValueExA
RegDeleteValueA
RegDeleteKeyA
RegCreateKeyExA

shell32

SHBrowseForFolderA
SHGetFileInfoA
SHGetPathFromIDListA
SHGetSpecialFolderLocation
SHGetDesktopFolder
DragQueryFileA
SHAppBarMessage
ShellExecuteA
DragFinish

comctl32

ImageList_Draw
ImageList_GetImageCount
ImageList_AddMasked

shlwapi

PathFindFileNameA
PathStripToRootA
StrFormatKBSizeA
PathRemoveFileSpecW
PathFindExtensionA
PathIsUNCA

uxtheme

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

ole32

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

oleaut32

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

oledlg

ord8

gdiplus

GdipDrawImageRectI
GdipSetInterpolationMode
GdipCreateFromHDC
GdipCreateBitmapFromHBITMAP
GdipDrawImageI
GdipDeleteGraphics
GdipBitmapUnlockBits
GdipBitmapLockBits
GdipCreateBitmapFromScan0
GdipCreateBitmapFromStream
GdipGetImagePaletteSize
GdipGetImagePalette
GdipGetImagePixelFormat
GdipGetImageHeight
GdipGetImageWidth
GdipGetImageGraphicsContext
GdipDisposeImage
GdipCloneImage
GdiplusStartup
GdipFree
GdiplusShutdown
GdipAlloc

oleacc

AccessibleObjectFromWindow
LresultFromObject
CreateStdAccessibleObject

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: 637KB - Virtual size: 637KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.data
Size: 2.7MB - Virtual size: 2.7MB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

.pdata
Size: 89KB - Virtual size: 89KB

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: 55KB - Virtual size: 54KB

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

Sharing

General

Malware Config

Signatures

Files

78f8cf3e4180f69ffc36670891a4d869

Headers

DLL Characteristics

File Characteristics

Imports

msimg32

kernel32

user32

gdi32

winspool.drv

advapi32

shell32

comctl32

shlwapi

uxtheme

ole32

oleaut32

oledlg

gdiplus

oleacc

imm32

winmm

Sections

.text Size: 1.9MB - Virtual size: 1.9MB

.rdata Size: 637KB - Virtual size: 637KB

.data Size: 2.7MB - Virtual size: 2.7MB

.pdata Size: 89KB - Virtual size: 89KB

.gfids Size: 105KB - Virtual size: 105KB

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

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

.rsrc Size: 55KB - Virtual size: 54KB

.reloc Size: 60KB - Virtual size: 59KB

.text
Size: 1.9MB - Virtual size: 1.9MB

.rdata
Size: 637KB - Virtual size: 637KB

.data
Size: 2.7MB - Virtual size: 2.7MB

.pdata
Size: 89KB - Virtual size: 89KB

.gfids
Size: 105KB - Virtual size: 105KB

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

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

.rsrc
Size: 55KB - Virtual size: 54KB

.reloc
Size: 60KB - Virtual size: 59KB