2024-03-08_ae082c695c22f8c7a8a0361d1ec50d5d_ryuk

Sharing

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General

Target

2024-03-08_ae082c695c22f8c7a8a0361d1ec50d5d_ryuk
Size

5.6MB
MD5

ae082c695c22f8c7a8a0361d1ec50d5d
SHA1

a84b13e9aca5efdc8769a71861a384c9b12c35c1
SHA256

823eacf431c7d2869e6f5e48e80c0f6451a51a0a71a02d5cdc44544227b015a8
SHA512

fb1109b2711ee649f67ebc5ee0d7f8436d60df5c0e907a4c139e68a5883b3441b4067aae57467a5b715a87a732eb3af9ff63a3b6b5baeb7b068a92e5c67cfc09
SSDEEP

98304:x98RJFR41a3yQNa9/mTXB5v3ujXAwLl2Ep:s1rlNNzcXc

Score

3^/10

Malware Config

Signatures

Unsigned PE 1 IoCs

Checks for missing Authenticode signature.

resource
2024-03-08_ae082c695c22f8c7a8a0361d1ec50d5d_ryuk

Files

2024-03-08_ae082c695c22f8c7a8a0361d1ec50d5d_ryuk
.exe windows:6 windows x64 arch:x64

c1d907b16559776c2567eb888e6ae2a2

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

PDB Paths

C:\Git\vfr\src\x64\Release\yf000ufh.pdb

Imports

kernel32

UnregisterWaitEx
QueryDepthSList
InterlockedPopEntrySList
ReleaseSemaphore
VirtualFree
GetModuleHandleA
GetThreadTimes
UnregisterWait
RegisterWaitForSingleObject
SetThreadAffinityMask
GetProcessAffinityMask
GetNumaHighestNodeNumber
DeleteTimerQueueTimer
ChangeTimerQueueTimer
CreateTimerQueueTimer
GetLogicalProcessorInformation
GetThreadPriority
SwitchToThread
SignalObjectAndWait
CreateTimerQueue
SetEnvironmentVariableA
FreeEnvironmentStringsW
GetEnvironmentStringsW
GetOEMCP
IsValidCodePage
WaitForMultipleObjects
ReadConsoleW
GetConsoleMode
GetConsoleCP
EnumSystemLocalesW
IsValidLocale
GetACP
ExitProcess
SetStdHandle
VirtualQuery
VirtualAlloc
GetSystemInfo
HeapQueryInformation
FreeLibraryAndExitThread
ExitThread
CreateThread
GetCommandLineA
WriteConsoleW
GetFileType
GetStdHandle
RtlUnwindEx
InterlockedFlushSList
InterlockedPushEntrySList
RtlPcToFileHeader
LCMapStringW
QueryPerformanceFrequency
GetCPInfo
TryEnterCriticalSection
GetStringTypeW
OutputDebugStringW
PeekNamedPipe
AreFileApisANSI
SleepEx
GetTickCount64
GetTimeZoneInformation
FormatMessageA
HeapCreate
GetFullPathNameA
UnlockFileEx
UnmapViewOfFile
HeapValidate
GetTempPathA
GetDiskFreeSpaceA
GetFileAttributesA
FlushViewOfFile
CreateFileA
LoadLibraryA
DeleteFileA
HeapCompact
CreateFileMappingA
LockFileEx
GetSystemTime
CreateFileMappingW
MapViewOfFile
GetDriveTypeW
GetStartupInfoW
IsDebuggerPresent
InitializeSListHead
GetSystemTimeAsFileTime
QueryPerformanceCounter
IsProcessorFeaturePresent
SetUnhandledExceptionFilter
UnhandledExceptionFilter
RtlVirtualUnwind
RtlLookupFunctionEntry
RtlCaptureContext
WaitForSingleObjectEx
ResetEvent
GetDiskFreeSpaceW
SystemTimeToTzSpecificLocalTime
GetFileTime
GetFileAttributesExW
FileTimeToLocalFileTime
SetErrorMode
GetProfileIntW
GetTickCount
SearchPathW
GetWindowsDirectoryW
GetTempPathW
GetTempFileNameW
FindResourceExW
lstrcmpiW
DuplicateHandle
UnlockFile
SetEndOfFile
LockFile
GetVolumeInformationW
GetFullPathNameW
FlushFileBuffers
GetFileAttributesW
GetCurrentDirectoryW
VerifyVersionInfoW
lstrcpyW
VerSetConditionMask
VirtualProtect
GetSystemDefaultUILanguage
CompareStringW
LocalReAlloc
GlobalHandle
GlobalReAlloc
TlsFree
TlsSetValue
TlsGetValue
TlsAlloc
InitializeCriticalSection
GlobalFlags
GlobalGetAtomNameW
ResumeThread
SetThreadPriority
CreateEventW
SetEvent
WritePrivateProfileStringW
GetPrivateProfileStringW
GetPrivateProfileIntW
lstrcmpA
GetVersionExW
FormatMessageW
GlobalFree
GlobalUnlock
GlobalLock
GlobalSize
GlobalAlloc
InitializeCriticalSectionAndSpinCount
GlobalFindAtomW
GlobalAddAtomW
lstrcmpW
GlobalDeleteAtom
LoadLibraryExW
FreeResource
FreeLibrary
GetSystemDirectoryW
GetCurrentThreadId
EncodePointer
QueryActCtxW
FindActCtxSectionStringW
DeactivateActCtx
ActivateActCtx
MulDiv
CreateActCtxW
LoadLibraryW
GetModuleHandleExW
SetLastError
OutputDebugStringA
Sleep
GetCommandLineW
GetModuleFileNameW
SystemTimeToFileTime
FileTimeToSystemTime
CopyFileW
WriteFile
SetFilePointerEx
SetFilePointer
ReadFile
GetFileSizeEx
GetFileSize
FindNextFileW
FindFirstFileW
FindClose
DeleteFileW
CreateFileW
CreateDirectoryW
LocalFree
LocalAlloc
CreateProcessW
TerminateProcess
GetCurrentProcessId
CreateMutexW
WaitForSingleObject
ReleaseMutex
GetUserDefaultUILanguage
GetCurrentThread
GetCurrentProcess
CloseHandle
GetUserDefaultLCID
GetLocaleInfoW
WideCharToMultiByte
MultiByteToWideChar
lstrlenA
ExpandEnvironmentStringsA
GetProcAddress
LoadLibraryExA
GetProcessHeap
DeleteCriticalSection
HeapDestroy
DecodePointer
HeapAlloc
RaiseException
HeapReAlloc
GetLastError
HeapSize
InitializeCriticalSectionEx
LeaveCriticalSection
EnterCriticalSection
HeapFree
GetModuleHandleW
FindResourceW
LoadResource
LockResource
SizeofResource
FindFirstFileExW

user32

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

gdi32

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

msimg32

TransparentBlt
AlphaBlend

winspool.drv

GetPrinterW
GetPrinterDriverW
GetPrinterDataExW
OpenPrinterW
GetPrinterDataW
DocumentPropertiesW
ClosePrinter

advapi32

CryptDestroyKey
RegOpenKeyExA
RegQueryValueExA
RegEnumKeyExW
RegEnumValueW
RegQueryValueW
RegEnumKeyW
RegSetValueExW
RegDeleteValueW
RegDeleteKeyW
RegCreateKeyExW
RegQueryValueExW
RegOpenKeyExW
TraceMessage
GetTraceLoggerHandle
CryptReleaseContext
CryptGetHashParam
CryptImportKey
CryptDestroyHash
CryptHashData
CryptCreateHash
CryptEncrypt
CryptAcquireContextW
RegCloseKey
GetTraceEnableFlags
GetTraceEnableLevel
RegisterTraceGuidsW
UnregisterTraceGuids
LookupAccountNameW
InitializeAcl
GetSecurityDescriptorDacl
GetLengthSid
CopySid
AddAce
FreeSid
EqualSid
AllocateAndInitializeSid
SetSecurityDescriptorDacl
InitializeSecurityDescriptor
GetUserNameW
LookupAccountSidW
RevertToSelf
ImpersonateLoggedOnUser
GetTokenInformation
OpenThreadToken
OpenProcessToken

shell32

ShellExecuteExW
CommandLineToArgvW
DragQueryFileW
DragFinish
SHAppBarMessage
SHGetFileInfoW
SHGetPathFromIDListW
SHBrowseForFolderW
ShellExecuteW
SHGetDesktopFolder
SHGetSpecialFolderLocation
SHGetSpecialFolderPathW

comctl32

InitCommonControlsEx

shlwapi

PathFindExtensionW
PathFindFileNameW
PathRemoveFileSpecW
PathIsUNCW
PathStripToRootW
StrFormatKBSizeW
PathIsDirectoryW

uxtheme

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

ole32

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

oleaut32

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

gdiplus

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

ws2_32

recv
send
setsockopt
htons
getsockopt
WSACleanup
connect
ntohs
socket
getsockname
getpeername
WSASetLastError
closesocket
WSAIoctl
bind
select
WSAStartup
WSAGetLastError
accept
listen
recvfrom
sendto
getaddrinfo
freeaddrinfo
ioctlsocket
__WSAFDIsSet
gethostname

oleacc

CreateStdAccessibleObject
AccessibleObjectFromWindow
LresultFromObject

imm32

ImmGetContext
ImmGetOpenStatus
ImmReleaseContext

winmm

PlaySoundW

bcrypt

BCryptCloseAlgorithmProvider
BCryptDestroyHash
BCryptOpenAlgorithmProvider
BCryptGetProperty
BCryptHashData
BCryptCreateHash
BCryptFinishHash

crypt32

CryptBinaryToStringW

Sections

.text
Size: 4.0MB - Virtual size: 4.0MB

IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ

.rdata
Size: 1.1MB - Virtual size: 1.1MB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.data
Size: 46KB - Virtual size: 189KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

.pdata
Size: 272KB - Virtual size: 271KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.gfids
Size: 107KB - Virtual size: 107KB

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: 3KB - Virtual size: 3KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.reloc
Size: 73KB - Virtual size: 72KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ

Sharing

General

Malware Config

Signatures

Files

c1d907b16559776c2567eb888e6ae2a2

Headers

DLL Characteristics

File Characteristics

PDB Paths

Imports

kernel32

user32

gdi32

msimg32

winspool.drv

advapi32

shell32

comctl32

shlwapi

uxtheme

ole32

oleaut32

gdiplus

ws2_32

oleacc

imm32

winmm

bcrypt

crypt32

Sections

.text Size: 4.0MB - Virtual size: 4.0MB

.rdata Size: 1.1MB - Virtual size: 1.1MB

.data Size: 46KB - Virtual size: 189KB

.pdata Size: 272KB - Virtual size: 271KB

.gfids Size: 107KB - Virtual size: 107KB

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

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

.rsrc Size: 3KB - Virtual size: 3KB

.reloc Size: 73KB - Virtual size: 72KB

.text
Size: 4.0MB - Virtual size: 4.0MB

.rdata
Size: 1.1MB - Virtual size: 1.1MB

.data
Size: 46KB - Virtual size: 189KB

.pdata
Size: 272KB - Virtual size: 271KB

.gfids
Size: 107KB - Virtual size: 107KB

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

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

.rsrc
Size: 3KB - Virtual size: 3KB

.reloc
Size: 73KB - Virtual size: 72KB