2024-02-23_ce08cf8e0d5bafe309093ad3d0c2f9a9_ryuk

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General

Target

2024-02-23_ce08cf8e0d5bafe309093ad3d0c2f9a9_ryuk
Size

3.1MB
MD5

ce08cf8e0d5bafe309093ad3d0c2f9a9
SHA1

63b54acc6f2ffde160d2a76dfceb46520f186155
SHA256

0adc6e96bc2fe150d02a1e08ebf39749ee0af0b7c148cd9a595dfeb1f97a4758
SHA512

2ce2becc6bec76abcc96b242924feac7151402cbf8d3b10d5677b009abfd9de391b2f7b2f4d499c27cd751016815dda8a7ee8cd1cbece1547f450da1f3cc0622
SSDEEP

49152:+tvAf1XBFRpBgTT4zAzb+x+Cgt5U72i5sYqPkp9nw3rtgiomvJi:Wu1++0U1CYqP1xjNi

Score

3^/10

Malware Config

Signatures

Unsigned PE 1 IoCs

Checks for missing Authenticode signature.

resource
2024-02-23_ce08cf8e0d5bafe309093ad3d0c2f9a9_ryuk

Files

2024-02-23_ce08cf8e0d5bafe309093ad3d0c2f9a9_ryuk
.exe windows:6 windows x64 arch:x64

69c0bcfdb7e9a2711c2922dedec8ba9e

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

C:\ENBuild\Targets\Release\Product-Support\HelperApps\EmailHelperx64.pdb

Imports

kernel32

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

user32

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

gdi32

GetTextFaceW
GetViewportOrgEx
GetWindowOrgEx
SetPixelV
SetPaletteEntries
ExtFloodFill
PtInRegion
GetBoundsRect
FrameRgn
FillRgn
RoundRect
OffsetRgn
GetRgnBox
Rectangle
LPtoDP
CreateRoundRectRgn
Polyline
Polygon
CreatePolygonRgn
GetTextColor
Ellipse
CreateEllipticRgn
SetDIBColorTable
CreateDIBSection
StretchBlt
SetPixel
GetTextCharsetInfo
EnumFontFamiliesW
CreateDIBitmap
RealizePalette
GetSystemPaletteEntries
GetPaletteEntries
GetNearestPaletteIndex
CreatePalette
GetBkColor
EnumFontFamiliesExW
GetTextMetricsW
DPtoLP
SetRectRgn
PatBlt
CreateRectRgnIndirect
CombineRgn
GetTextExtentPoint32W
ScaleWindowExtEx
ScaleViewportExtEx
OffsetWindowOrgEx
OffsetViewportOrgEx
SetWindowOrgEx
SetWindowExtEx
SetViewportOrgEx
SetViewportExtEx
ExtTextOutW
TextOutW
MoveToEx
SetTextAlign
SetROP2
SetPolyFillMode
GetLayout
SetLayout
SetMapMode
SetBkMode
SelectPalette
SelectObject
ExtSelectClipRgn
SelectClipRgn
SaveDC
RestoreDC
RectVisible
PtVisible
LineTo
IntersectClipRect
GetWindowExtEx
GetViewportExtEx
GetStockObject
GetPixel
GetObjectType
GetClipBox
ExcludeClipRect
Escape
DeleteObject
DeleteDC
CreateSolidBrush
CreateRectRgn
CreatePatternBrush
CreatePen
CreateHatchBrush
BitBlt
CreateBitmap
GetObjectW
SetTextColor
SetBkColor
CreateFontIndirectW
CreateCompatibleDC
CreateCompatibleBitmap
GetDeviceCaps
CreateDCW
CopyMetaFileW

msimg32

AlphaBlend
TransparentBlt

winspool.drv

DocumentPropertiesW
OpenPrinterW
ClosePrinter

advapi32

SystemFunction036
RegEnumKeyExW
RegEnumValueW
RegSetValueExW
RegDeleteValueW
RegQueryValueW
RegEnumKeyW
RegDeleteKeyW
RegCreateKeyExW
RegQueryValueExW
RegOpenKeyExW
SetFileSecurityW
GetFileSecurityW
RegCloseKey
CryptDestroyKey
CryptGetUserKey
CryptAcquireContextW
CryptEncrypt
CryptDecrypt
CryptCreateHash
CryptDeriveKey
CryptHashData
CryptDestroyHash
CryptGenKey
CryptReleaseContext

shell32

CommandLineToArgvW
SHGetFileInfoW
DragQueryFileW
DragFinish
ShellExecuteW
SHGetPathFromIDListW
SHAppBarMessage
SHBrowseForFolderW
SHGetDesktopFolder
SHGetSpecialFolderLocation

shlwapi

PathStripToRootW
PathRemoveFileSpecW
PathStripPathW
PathFindExtensionW
PathFindFileNameW
StrFormatKBSizeW
PathIsUNCW

uxtheme

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

ole32

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

oleaut32

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

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: 1.7MB - Virtual size: 1.7MB

IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ

.rdata
Size: 643KB - Virtual size: 643KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.data
Size: 29KB - Virtual size: 74KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

.pdata
Size: 86KB - Virtual size: 85KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.gfids
Size: 512B - Virtual size: 248B

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: 17KB - Virtual size: 16KB

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

69c0bcfdb7e9a2711c2922dedec8ba9e

Headers

DLL Characteristics

File Characteristics

PDB Paths

Imports

kernel32

user32

gdi32

msimg32

winspool.drv

advapi32

shell32

shlwapi

uxtheme

ole32

oleaut32

oleacc

gdiplus

imm32

winmm

Sections

.text Size: 1.7MB - Virtual size: 1.7MB

.rdata Size: 643KB - Virtual size: 643KB

.data Size: 29KB - Virtual size: 74KB

.pdata Size: 86KB - Virtual size: 85KB

.gfids Size: 512B - Virtual size: 248B

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

.rsrc Size: 17KB - Virtual size: 16KB

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

.text
Size: 1.7MB - Virtual size: 1.7MB

.rdata
Size: 643KB - Virtual size: 643KB

.data
Size: 29KB - Virtual size: 74KB

.pdata
Size: 86KB - Virtual size: 85KB

.gfids
Size: 512B - Virtual size: 248B

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

.rsrc
Size: 17KB - Virtual size: 16KB

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