2024-02-03_c077c107d47c84680cb9ddba5ed280f5_ryuk

Sharing

Copy URL Twitter E-mail

General

Target

2024-02-03_c077c107d47c84680cb9ddba5ed280f5_ryuk
Size

3.2MB
MD5

c077c107d47c84680cb9ddba5ed280f5
SHA1

67b6d65d460d7ec7e469242ac3854ad087b09e97
SHA256

d417d830a37c8d7771cad09adfc3fd0121d387a1d5fc6586f7aee04405b0fecb
SHA512

c4c425db26e2adb91c3148de7d5b0b3b6e191b2a7de1adec28c9b24d1bf7d960fd9c4baaaa80dbeabdda282d4a6e95a6c18f7348f59222b986b8fe8d59ee2314
SSDEEP

49152:or+Y7e4Xnleh87qC5ljITDyvzAwlyY4xLhtcTKDmg27RnWGj:eRF/+AzAwlybhtcTKD527BWG

Score

3^/10

Malware Config

Signatures

Unsigned PE 1 IoCs

Checks for missing Authenticode signature.

resource
2024-02-03_c077c107d47c84680cb9ddba5ed280f5_ryuk

Files

2024-02-03_c077c107d47c84680cb9ddba5ed280f5_ryuk
.exe windows:6 windows x64 arch:x64

6079767dc496e2bb50199280e95f7c2b

Headers

DLL Characteristics

IMAGE_DLLCHARACTERISTICS_HIGH_ENTROPY_VA
IMAGE_DLLCHARACTERISTICS_NX_COMPAT
IMAGE_DLLCHARACTERISTICS_TERMINAL_SERVER_AWARE

File Characteristics

IMAGE_FILE_EXECUTABLE_IMAGE
IMAGE_FILE_LARGE_ADDRESS_AWARE

PDB Paths

D:\Projects\CalCheck\CalCheck\x64\Release\CalCheck.pdb

Imports

mapi32

ord15
ord140
ord75
ord17
ord135
ord11
ord21
ord23
ord13

msi

ord109

kernel32

IsDebuggerPresent
GetStartupInfoW
QueryPerformanceCounter
GetSystemTimeAsFileTime
InitializeSListHead
SetEnvironmentVariableA
FreeEnvironmentStringsW
GetEnvironmentStringsW
GetCPInfo
GetOEMCP
IsValidCodePage
FindNextFileA
FindFirstFileExA
SetFilePointerEx
ReadConsoleW
GetConsoleMode
GetConsoleCP
IsProcessorFeaturePresent
GetStringTypeW
GetACP
GetStdHandle
ExitProcess
QueryPerformanceFrequency
VirtualQuery
VirtualAlloc
GetSystemInfo
GetCommandLineW
GetCommandLineA
HeapQueryInformation
FreeLibraryAndExitThread
ExitThread
CreateThread
GetFileType
SetStdHandle
RtlUnwindEx
RtlPcToFileHeader
OutputDebugStringW
TerminateProcess
SetUnhandledExceptionFilter
RtlVirtualUnwind
UnhandledExceptionFilter
RtlLookupFunctionEntry
RtlCaptureContext
WaitForSingleObjectEx
ResetEvent
Sleep
SearchPathW
GetProfileIntW
GetTickCount
GetTempPathW
GetTempFileNameW
VerifyVersionInfoW
VerSetConditionMask
GetWindowsDirectoryW
FindResourceExW
lstrcpyW
GetCurrentDirectoryW
VirtualProtect
GetVersionExW
GlobalFindAtomW
GlobalDeleteAtom
FreeResource
GetUserDefaultUILanguage
CompareStringW
GetSystemDirectoryW
EncodePointer
GlobalAddAtomW
lstrcmpW
GlobalFlags
FreeLibrary
ResumeThread
SetThreadPriority
GetCurrentThreadId
CreateEventW
SetEvent
GlobalGetAtomNameW
lstrcmpA
GetCurrentProcessId
LocalReAlloc
LocalAlloc
GlobalHandle
GlobalReAlloc
TlsFree
TlsSetValue
TlsGetValue
TlsAlloc
LeaveCriticalSection
EnterCriticalSection
InitializeCriticalSection
InitializeCriticalSectionAndSpinCount
QueryActCtxW
FindActCtxSectionStringW
DeactivateActCtx
ActivateActCtx
CreateActCtxW
MoveFileW
lstrcmpiW
LoadLibraryExW
GetModuleHandleExW
GetModuleFileNameW
GetCurrentProcess
DuplicateHandle
OutputDebugStringA
WriteFile
UnlockFile
SetFilePointer
SetEndOfFile
ReadFile
LockFile
GetVolumeInformationW
GetFullPathNameW
GetFileSize
FlushFileBuffers
FindFirstFileW
FindClose
DeleteFileW
SystemTimeToTzSpecificLocalTime
GetProcAddress
GetModuleHandleW
GetFileTime
GetFileSizeEx
GetFileAttributesExW
GetFileAttributesW
FileTimeToLocalFileTime
CreateFileW
CopyFileW
FormatMessageW
MulDiv
LocalFree
GlobalFree
GlobalUnlock
GlobalLock
GlobalSize
GlobalAlloc
SetLastError
FileTimeToSystemTime
GetTimeZoneInformation
CompareFileTime
WideCharToMultiByte
CreateProcessW
CloseHandle
WaitForSingleObject
GetSystemTime
SystemTimeToFileTime
GetProcessHeap
DeleteCriticalSection
DecodePointer
GetLocalTime
HeapAlloc
FindResourceW
LoadResource
LoadLibraryW
RaiseException
HeapReAlloc
LockResource
GetLastError
MultiByteToWideChar
HeapSize
InitializeCriticalSectionEx
HeapFree
SizeofResource
GetModuleFileNameA
CreateDirectoryW
WriteConsoleW
LCMapStringW

user32

EnableScrollBar
MessageBeep
GetIconInfo
DrawIconEx
IsRectEmpty
DrawFocusRect
WindowFromPoint
ReleaseCapture
SetCapture
GetNextDlgGroupItem
LoadImageW
TrackMouseEvent
InvalidateRect
KillTimer
SetTimer
DeleteMenu
SetCursor
ShowOwnedPopups
MapDialogRect
GetAsyncKeyState
GetNextDlgTabItem
EndDialog
CreateDialogIndirectParamW
OffsetRect
SetRectEmpty
SendDlgItemMessageA
CopyImage
SystemParametersInfoW
GetMenuItemInfoW
DestroyMenu
IntersectRect
InflateRect
PostQuitMessage
GetMonitorInfoW
MonitorFromWindow
WinHelpW
GetScrollInfo
SetScrollInfo
LoadIconW
GetTopWindow
GetClassLongPtrW
SetWindowLongPtrW
GetWindowLongPtrW
EqualRect
CopyRect
MapWindowPoints
AdjustWindowRectEx
GetClientRect
RemovePropW
GetPropW
SetPropW
ShowScrollBar
GetScrollRange
SetScrollRange
ScrollWindow
RedrawWindow
SetForegroundWindow
GetForegroundWindow
SetActiveWindow
UpdateWindow
TrackPopupMenu
SetMenu
GetMenu
GetCapture
IsIconic
EndDeferWindowPos
DeferWindowPos
BeginDeferWindowPos
SetWindowPlacement
GetWindowPlacement
DestroyWindow
IsChild
IsMenu
CreateWindowExW
GetClassInfoExW
GetClassInfoW
RegisterClassW
CallWindowProcW
DefWindowProcW
PostMessageW
GetMessageTime
GetMessagePos
HideCaret
LoadBitmapW
SetMenuItemInfoW
GetMenuCheckMarkDimensions
SetMenuItemBitmaps
EnableMenuItem
CheckMenuItem
FillRect
ScreenToClient
EndPaint
BeginPaint
GetWindowDC
TabbedTextOutW
GrayStringW
DrawTextExW
DrawTextW
DestroyIcon
RealChildWindowFromPoint
GetClassNameW
GetDesktopWindow
PtInRect
ClientToScreen
GetWindowRect
IsDialogMessageW
SetWindowLongW
InvertRect
NotifyWinEvent
CreatePopupMenu
MessageBoxExW
GetMenuStringW
GetMenuState
GetSubMenu
SetWindowTextW
GetFocus
GetDlgCtrlID
CheckDlgButton
GetDlgItem
SetWindowPos
MoveWindow
GetMenuDefaultItem
MapVirtualKeyW
GetKeyNameTextW
LoadMenuW
SetLayeredWindowAttributes
EnumDisplayMonitors
SetClassLongPtrW
SetWindowRgn
SetParent
OpenClipboard
CloseClipboard
SetClipboardData
EmptyClipboard
DrawStateW
DrawEdge
DrawFrameControl
IsZoomed
GetSystemMenu
BringWindowToTop
SetCursorPos
CopyIcon
GetMenuItemID
GetMenuItemCount
InsertMenuW
AppendMenuW
RemoveMenu
CharUpperW
GetSystemMetrics
UnhookWindowsHookEx
SendMessageW
EnableWindow
IsWindowEnabled
MessageBoxW
GetWindowLongW
GetParent
GetWindowThreadProcessId
GetLastActivePopup
GetWindowTextW
GetWindowTextLengthW
GetDC
ReleaseDC
GetSysColor
GetSysColorBrush
LoadCursorW
GetMessageW
TranslateMessage
DispatchMessageW
PeekMessageW
IsWindowVisible
GetActiveWindow
GetKeyState
ValidateRect
GetCursorPos
SetWindowsHookExW
CallNextHookEx
SetFocus
SetScrollPos
GetScrollPos
GetWindow
IsWindow
ShowWindow
FrameRect
DrawIcon
UnionRect
UpdateLayeredWindow
MonitorFromPoint
LoadAcceleratorsW
TranslateAcceleratorW
InsertMenuItemW
GetWindowRgn
CreateMenu
SubtractRect
TranslateMDISysAccel
DefMDIChildProcW
DefFrameProcW
DrawMenuBar
GetUpdateRect
IsClipboardFormatAvailable
CharUpperBuffW
RegisterClipboardFormatW
ModifyMenuW
GetDoubleClickTime
SetMenuDefaultItem
LockWindowUpdate
SetRect
CopyAcceleratorTableW
DestroyAcceleratorTable
CreateAcceleratorTableW
GetKeyboardState
ToUnicodeEx
MapVirtualKeyExW
IsCharLowerW
GetKeyboardLayout
WaitMessage
PostThreadMessageW
GetComboBoxInfo
ReuseDDElParam
UnpackDDElParam
RegisterWindowMessageW
DestroyCursor

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
GetObjectW
MoveToEx
TextOutW
ExtTextOutW
SetViewportExtEx
SetViewportOrgEx
SetWindowExtEx
SetWindowOrgEx
OffsetViewportOrgEx
OffsetWindowOrgEx
ScaleViewportExtEx
ScaleWindowExtEx
CombineRgn
CreateFontIndirectW
CreateRectRgnIndirect
ExcludeClipRect
PatBlt
SetRectRgn
DPtoLP
GetTextExtentPoint32W
GetTextMetricsW
EnumFontFamiliesExW
CreatePalette
GetNearestPaletteIndex
GetPaletteEntries
GetSystemPaletteEntries
RealizePalette
GetBkColor
CreateCompatibleBitmap
CreateDIBitmap
EnumFontFamiliesW
GetTextCharsetInfo
SetPixel
StretchBlt
CreateDIBSection
SetDIBColorTable
CreateEllipticRgn
Ellipse
GetTextColor
CreatePolygonRgn
Polygon
Polyline
CreateRoundRectRgn
LPtoDP
Rectangle
GetRgnBox
OffsetRgn
RoundRect
FillRgn
FrameRgn
GetBoundsRect
PtInRegion
ExtFloodFill
SetPaletteEntries
SetPixelV
GetWindowOrgEx
GetViewportOrgEx
GetTextFaceW
Escape
DeleteDC
CreateSolidBrush
CreateRectRgn
CreatePatternBrush
CreatePen
CreateHatchBrush
CreateCompatibleDC
CreateBitmap
BitBlt
DeleteObject
GetDeviceCaps
CreateDCW
CopyMetaFileW

msimg32

AlphaBlend
TransparentBlt

winspool.drv

DocumentPropertiesW
OpenPrinterW
ClosePrinter

advapi32

SystemFunction036
RegSetValueExW
RegEnumKeyExW
RegDeleteValueW
RegDeleteKeyW
RegCreateKeyExW
RegQueryValueExW
RegOpenKeyExW
RegCloseKey

shell32

SHGetFileInfoW
ShellExecuteW
SHAppBarMessage
SHBrowseForFolderW
DragFinish
DragQueryFileW
SHGetDesktopFolder
SHGetSpecialFolderLocation
SHGetPathFromIDListW

shlwapi

PathStripToRootW
PathFindExtensionW
StrFormatKBSizeW
PathRemoveFileSpecW
PathIsUNCW
PathFindFileNameW

uxtheme

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

ole32

RevokeDragDrop
RegisterDragDrop
CoLockObjectExternal
OleLockRunning
OleCreateMenuDescriptor
OleDestroyMenuDescriptor
OleTranslateAccelerator
IsAccelerator
OleGetClipboard
DoDragDrop
CreateStreamOnHGlobal
CoInitializeEx
CoUninitialize
CoDisconnectObject
CoCreateInstance
ReleaseStgMedium
OleDuplicateData
CoTaskMemFree
CoTaskMemAlloc
CoInitialize

oleaut32

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

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

PlaySoundW

Sections

.text
Size: 1.8MB - Virtual size: 1.8MB

IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ

.rdata
Size: 693KB - Virtual size: 692KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.data
Size: 27KB - Virtual size: 72KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

.pdata
Size: 82KB - Virtual size: 82KB

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

.gfids
Size: 512B - Virtual size: 216B

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.rsrc
Size: 7KB - Virtual size: 6KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.reloc
Size: 624KB - Virtual size: 628KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

Sharing

General

Malware Config

Signatures

Files

6079767dc496e2bb50199280e95f7c2b

Headers

DLL Characteristics

File Characteristics

PDB Paths

Imports

mapi32

msi

kernel32

user32

gdi32

msimg32

winspool.drv

advapi32

shell32

shlwapi

uxtheme

ole32

oleaut32

oleacc

gdiplus

imm32

winmm

Sections

.text Size: 1.8MB - Virtual size: 1.8MB

.rdata Size: 693KB - Virtual size: 692KB

.data Size: 27KB - Virtual size: 72KB

.pdata Size: 82KB - Virtual size: 82KB

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

.gfids Size: 512B - Virtual size: 216B

.rsrc Size: 7KB - Virtual size: 6KB

.reloc Size: 624KB - Virtual size: 628KB

.text
Size: 1.8MB - Virtual size: 1.8MB

.rdata
Size: 693KB - Virtual size: 692KB

.data
Size: 27KB - Virtual size: 72KB

.pdata
Size: 82KB - Virtual size: 82KB

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

.gfids
Size: 512B - Virtual size: 216B

.rsrc
Size: 7KB - Virtual size: 6KB

.reloc
Size: 624KB - Virtual size: 628KB