2024-09-03_e9407538a778656f3edbe4494d8b231d_ryuk

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General

Target

2024-09-03_e9407538a778656f3edbe4494d8b231d_ryuk
Size

3.5MB
MD5

e9407538a778656f3edbe4494d8b231d
SHA1

956509bb27d6b00f7ef6c55758e8a8720dcc6e76
SHA256

629a6b27770d68ba7fe590307b057dcfec3cf896583e8858e7633b84c99506d2
SHA512

11affa3cf7e71ed4071cc8ba095bd08c6944714aaa3158a46ba825763c77428c21b11ab54026e9f781eca9a60f34a412731a2b07a3337249040e4441787ac19c
SSDEEP

98304:utvWkMlckaTnx34wb1a7P4HH3DDflw/QY:utvzvTO5O

Score

3^/10

Malware Config

Signatures

Unsigned PE 1 IoCs

Checks for missing Authenticode signature.

resource
2024-09-03_e9407538a778656f3edbe4494d8b231d_ryuk

Files

2024-09-03_e9407538a778656f3edbe4494d8b231d_ryuk
.exe windows:5 windows x64 arch:x64

7d4ecccde14bc990b9c696f0a8a9cf94

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

f:\jnks\workspace\K25_Production_Build\build2608\SxS\src\x64\Release\DeviceSetupLauncher.pdb

Imports

kernel32

GetSystemTimeAsFileTime
IsProcessorFeaturePresent
TerminateProcess
SetUnhandledExceptionFilter
UnhandledExceptionFilter
RtlVirtualUnwind
Process32NextW
Process32FirstW
CreateToolhelp32Snapshot
GetSystemDefaultLCID
GetUserDefaultLangID
ProcessIdToSessionId
GetComputerNameExW
RtlLookupFunctionEntry
CreateNamedPipeW
MoveFileExW
GetDiskFreeSpaceExW
SetCurrentDirectoryW
GetEnvironmentVariableW
CreateProcessW
OpenFileMappingW
OpenEventW
OpenMutexW
FlushViewOfFile
PeekNamedPipe
DisconnectNamedPipe
ConnectNamedPipe
CreatePipe
GetLocalTime
GetSystemTime
DeviceIoControl
WaitForMultipleObjects
InitializeSListHead
GetExitCodeThread
TerminateThread
GetExitCodeProcess
GlobalMemoryStatusEx
WriteConsoleW
SetEnvironmentVariableA
FreeEnvironmentStringsW
GetEnvironmentStringsW
GetOEMCP
IsValidCodePage
FindFirstFileExW
ReadConsoleW
SetFilePointerEx
GetConsoleMode
GetConsoleCP
GetTimeZoneInformation
EnumSystemLocalesW
IsValidLocale
GetTimeFormatW
GetDateFormatW
GetACP
ExitProcess
GetStdHandle
GetFileType
SetStdHandle
VirtualQuery
VirtualAlloc
GetSystemInfo
GetCommandLineA
HeapQueryInformation
FreeLibraryAndExitThread
ExitThread
CreateThread
RtlUnwindEx
RtlPcToFileHeader
GetCPInfo
LCMapStringW
GetStringTypeW
IsDebuggerPresent
GetStartupInfoW
TryEnterCriticalSection
RtlCaptureContext
WaitForSingleObjectEx
ResetEvent
GetUserDefaultLCID
GetProfileIntW
GetTempPathW
VerifyVersionInfoW
VerSetConditionMask
FindResourceExW
GetCurrentDirectoryW
lstrcpyW
SystemTimeToTzSpecificLocalTime
SetFileAttributesW
GetFileTime
GetFileSizeEx
GetFileAttributesW
FileTimeToLocalFileTime
VirtualProtect
GetVersionExW
GlobalFlags
GetUserDefaultUILanguage
GetSystemDefaultUILanguage
CompareStringW
lstrcmpiW
GetCurrentProcess
DuplicateHandle
UnlockFile
SetEndOfFile
ReadFile
LockFile
GetVolumeInformationW
GetShortPathNameW
GetFullPathNameW
GetFileSize
FlushFileBuffers
DeleteFileW
GlobalFindAtomW
GlobalAddAtomW
lstrcmpW
GlobalDeleteAtom
LoadLibraryExW
FreeResource
GetSystemDirectoryW
EncodePointer
FileTimeToSystemTime
GlobalGetAtomNameW
lstrcmpA
GetModuleHandleW
ResumeThread
SetThreadPriority
CreateEventW
SetEvent
CopyFileW
MulDiv
GlobalSize
FindResourceW
SizeofResource
LockResource
LoadResource
LocalReAlloc
GlobalFree
GlobalUnlock
GlobalHandle
GlobalLock
GlobalReAlloc
GlobalAlloc
TlsFree
TlsSetValue
TlsGetValue
TlsAlloc
QueryActCtxW
FindActCtxSectionStringW
DeactivateActCtx
HeapFree
ActivateActCtx
CreateActCtxW
GetModuleHandleExW
OutputDebugStringA
GetLocaleInfoW
LocalSize
lstrlenW
LocalAlloc
WritePrivateProfileStringA
WritePrivateProfileStringW
GetPrivateProfileStringA
GetPrivateProfileStringW
GetWindowsDirectoryW
GetGeoInfoW
WideCharToMultiByte
FindClose
FindNextFileW
FindFirstFileW
CreateDirectoryW
QueryPerformanceFrequency
FreeLibrary
GetProcAddress
LoadLibraryW
SetLastError
UnmapViewOfFile
ReleaseMutex
MapViewOfFile
CreateFileMappingW
WaitForSingleObject
CreateMutexW
LocalFree
FormatMessageW
SearchPathW
GetLongPathNameW
GetTempFileNameW
GetCommandLineW
GetFileAttributesExW
OpenProcess
QueryPerformanceCounter
GetCurrentThreadId
OutputDebugStringW
CloseHandle
WriteFile
SetFilePointer
Sleep
CreateFileW
GetTickCount
LeaveCriticalSection
EnterCriticalSection
MultiByteToWideChar
GetCurrentProcessId
InitializeCriticalSection
ExpandEnvironmentStringsW
GetModuleFileNameW
GetProcessHeap
DeleteCriticalSection
DecodePointer
HeapAlloc
RaiseException
HeapReAlloc
GetLastError
HeapSize
InitializeCriticalSectionAndSpinCount
WaitNamedPipeW

user32

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

gdi32

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

msimg32

TransparentBlt
AlphaBlend

winspool.drv

OpenPrinterW
ClosePrinter
DocumentPropertiesW

advapi32

CryptGetHashParam
CryptHashData
CryptDestroyHash
DuplicateToken
RevertToSelf
AdjustTokenPrivileges
LookupPrivilegeValueW
ImpersonateLoggedOnUser
ConvertStringSecurityDescriptorToSecurityDescriptorW
CryptReleaseContext
CryptAcquireContextW
SetEntriesInAclW
StartServiceW
QueryServiceStatus
QueryServiceConfigW
OpenServiceW
OpenSCManagerW
ControlService
CloseServiceHandle
ChangeServiceConfigW
CreateProcessAsUserW
SetSecurityDescriptorDacl
InitializeSecurityDescriptor
FreeSid
AllocateAndInitializeSid
OpenEventLogW
CloseEventLog
BackupEventLogW
GetUserNameW
RegQueryInfoKeyW
CheckTokenMembership
OpenProcessToken
RegEnumValueW
RegSetValueExW
RegDeleteValueW
RegDeleteKeyW
RegQueryValueExW
RegCreateKeyExW
RegCloseKey
RegOpenKeyExW
RegEnumKeyExW
CryptCreateHash

shell32

SHGetSpecialFolderPathW
ExtractIconW
SHGetFileInfoW
ShellExecuteW
SHGetPathFromIDListW
SHGetSpecialFolderLocation
SHGetDesktopFolder
DragQueryFileW
DragFinish
ShellExecuteExW
SHAppBarMessage
SHBrowseForFolderW
SHGetFolderPathW

shlwapi

PathIsFileSpecW
PathFindFileNameW
PathRemoveFileSpecW
PathStripToRootW
StrFormatKBSizeW
PathFindExtensionW
PathIsUNCW

uxtheme

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

ole32

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

oleaut32

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

psapi

EnumProcesses
EnumProcessModules
GetModuleBaseNameW
GetModuleFileNameExW

oleacc

LresultFromObject
AccessibleObjectFromWindow
CreateStdAccessibleObject

gdiplus

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

imm32

ImmGetContext
ImmGetOpenStatus
ImmReleaseContext

winmm

PlaySoundW

ws2_32

bind
closesocket
listen
recv
WSACleanup
send
setsockopt
shutdown
WSAConnect
WSACreateEvent
WSADuplicateSocketW
WSAEnumNetworkEvents
WSAEventSelect
WSAResetEvent
WSASocketW
WSAAddressToStringW
WSAStartup
WSACloseEvent
getaddrinfo
accept
freeaddrinfo
WSAGetLastError
WSAStringToAddressW

secur32

GetUserNameExW

iphlpapi

DeleteIPAddress
GetAdaptersInfo
GetAdaptersAddresses
IpReleaseAddress
AddIPAddress
IcmpCreateFile
IcmpCloseHandle
IcmpSendEcho
NotifyAddrChange
GetInterfaceInfo
IpRenewAddress
GetIfEntry

crypt32

CertOpenStore
CertAddEncodedCertificateToStore
CertDeleteCertificateFromStore
CryptUnprotectData
CertCloseStore

version

GetFileVersionInfoSizeW
GetFileVersionInfoW
VerQueryValueW

Sections

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

IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ

.rdata
Size: 696KB - Virtual size: 696KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.data
Size: 30KB - Virtual size: 81KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

.pdata
Size: 90KB - Virtual size: 90KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.gfids
Size: 104KB - Virtual size: 103KB

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: 28KB - Virtual size: 27KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.reloc
Size: 628KB - Virtual size: 632KB

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

7d4ecccde14bc990b9c696f0a8a9cf94

Headers

DLL Characteristics

File Characteristics

PDB Paths

Imports

kernel32

user32

gdi32

msimg32

winspool.drv

advapi32

shell32

shlwapi

uxtheme

ole32

oleaut32

psapi

oleacc

gdiplus

imm32

winmm

ws2_32

secur32

iphlpapi

crypt32

version

Sections

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

.rdata Size: 696KB - Virtual size: 696KB

.data Size: 30KB - Virtual size: 81KB

.pdata Size: 90KB - Virtual size: 90KB

.gfids Size: 104KB - Virtual size: 103KB

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

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

.rsrc Size: 28KB - Virtual size: 27KB

.reloc Size: 628KB - Virtual size: 632KB

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

.rdata
Size: 696KB - Virtual size: 696KB

.data
Size: 30KB - Virtual size: 81KB

.pdata
Size: 90KB - Virtual size: 90KB

.gfids
Size: 104KB - Virtual size: 103KB

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

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

.rsrc
Size: 28KB - Virtual size: 27KB

.reloc
Size: 628KB - Virtual size: 632KB