Static task
static1
Behavioral task
behavioral1
Sample
2024-09-14_0b0e3b7f44b34d8443459479eedb475b_ryuk.exe
Resource
win7-20240708-en
Behavioral task
behavioral2
Sample
2024-09-14_0b0e3b7f44b34d8443459479eedb475b_ryuk.exe
Resource
win10v2004-20240802-en
General
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Target
2024-09-14_0b0e3b7f44b34d8443459479eedb475b_ryuk
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Size
30.3MB
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MD5
0b0e3b7f44b34d8443459479eedb475b
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SHA1
816bbba0dd740749f21cb709457e2ec3cb487176
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SHA256
42aede4943ea4d0ad4c0f73b71c98b88e619f6b9620f2f37cba4a5b04abfc167
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SHA512
a60a42f5776beeeb5a005953d225af39942f2bf756c3908cd3576091e43d6e576f577c9094def3d7c7435e3f94687999d87be97a0988c17402da067d0e18092d
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SSDEEP
393216:ysWT9kTBtsJsv6tWKFdu9Cng5z1Gu5b77ojo/eLy3RmTM2zEYpthLqZQhI0HDtYe:DB6yAu1kSe0MTEP70HlXzTWpvfs
Malware Config
Signatures
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Unsigned PE 1 IoCs
Checks for missing Authenticode signature.
resource 2024-09-14_0b0e3b7f44b34d8443459479eedb475b_ryuk
Files
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2024-09-14_0b0e3b7f44b34d8443459479eedb475b_ryuk.exe windows:6 windows x64 arch:x64
ebfca68af756cce86391804b9847d1b4
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
dwmapi
DwmEnableBlurBehindWindow
DwmIsCompositionEnabled
imm32
ImmGetDefaultIMEWnd
ImmReleaseContext
ImmAssociateContext
ImmGetCompositionStringW
ImmNotifyIME
ImmSetCompositionWindow
ImmSetCandidateWindow
ImmGetVirtualKey
ImmGetContext
oleaut32
SystemTimeToVariantTime
SysAllocStringLen
SysFreeString
SysStringLen
VariantInit
VariantChangeType
SysAllocString
shell32
ShellExecuteExW
SHGetFileInfoW
SHGetStockIconInfo
ord727
ShellExecuteW
SHCreateItemFromIDList
SHCreateItemFromParsingName
SHGetMalloc
SHGetPathFromIDListW
SHGetKnownFolderIDList
SHBrowseForFolderW
advapi32
OpenProcessToken
CopySid
FreeSid
GetLengthSid
GetTokenInformation
RegCreateKeyExW
RegDeleteKeyW
RegDeleteValueW
RegEnumKeyExW
RegEnumValueW
RegFlushKey
RegQueryInfoKeyW
RegSetValueExW
RegQueryValueExW
RegOpenKeyExW
RegCloseKey
ole32
OleFlushClipboard
OleIsCurrentClipboard
CoCreateInstance
DoDragDrop
CoTaskMemFree
OleGetClipboard
CoGetMalloc
CoTaskMemAlloc
CoCreateGuid
CoUninitialize
OleSetClipboard
CoInitialize
OleUninitialize
OleInitialize
CoLockObjectExternal
RegisterDragDrop
ReleaseStgMedium
RevokeDragDrop
gdi32
SetWorldTransform
SetTextAlign
ExtTextOutW
SetGraphicsMode
SetBkMode
GetCharABCWidthsI
GetTextExtentPoint32W
GetOutlineTextMetricsW
GetGlyphOutlineW
GetCharABCWidthsFloatW
GetCharABCWidthsW
GdiFlush
CreateDIBSection
GetTextFaceW
GetTextMetricsW
RemoveFontMemResourceEx
AddFontMemResourceEx
RemoveFontResourceExW
GetDIBits
CreateBitmap
SetTextColor
AddFontResourceExW
GetStockObject
GetFontData
EnumFontFamiliesExW
CreateFontIndirectW
GetObjectW
GetBitmapBits
SwapBuffers
SetPixelFormat
GetPixelFormat
DescribePixelFormat
ChoosePixelFormat
SelectObject
DeleteDC
CreateDCW
CreateCompatibleDC
CreateCompatibleBitmap
GetDeviceCaps
BitBlt
CombineRgn
CreateRectRgn
DeleteObject
OffsetRgn
SelectClipRgn
user32
SetCaretPos
HideCaret
DestroyCaret
CreateCaret
RegisterWindowMessageW
GetKeyboardLayout
GetAsyncKeyState
RegisterClipboardFormatW
ChangeClipboardChain
SetClipboardViewer
IsHungAppWindow
LoadIconW
GetSysColor
EnumDisplayMonitors
GetMonitorInfoW
LoadImageW
GetSysColorBrush
ChildWindowFromPointEx
GetCursorPos
GetClientRect
GetFocus
RegisterClassExW
GetClassInfoW
UnregisterClassW
GetKeyboardLayoutList
GetAncestor
DestroyIcon
DestroyCursor
GetWindowThreadProcessId
SetParent
GetParent
SetWindowLongPtrW
GetWindowLongPtrW
SetWindowLongW
GetWindowLongW
ScreenToClient
ClientToScreen
SetCursor
AdjustWindowRectEx
GetWindowRect
SetWindowTextW
InvalidateRect
SetWindowRgn
GetUpdateRect
EndPaint
BeginPaint
ReleaseDC
PeekMessageW
SetForegroundWindow
GetForegroundWindow
EnableMenuItem
GetSystemMenu
IsZoomed
GetKeyState
GetKeyboardState
ToAscii
ToUnicode
MapVirtualKeyW
GetMenu
TrackPopupMenuEx
SetMenuItemInfoW
GetDC
NotifyWinEvent
GetSystemMetrics
ReleaseCapture
SetCapture
GetCapture
SetFocus
IsIconic
IsWindowVisible
SetWindowPlacement
GetWindowPlacement
SetWindowPos
MoveWindow
FlashWindowEx
SetLayeredWindowAttributes
SetCursorPos
GetCursor
UpdateLayeredWindow
DestroyWindow
DrawIconEx
TranslateMessage
DispatchMessageW
GetQueueStatus
MsgWaitForMultipleObjectsEx
SetTimer
KillTimer
SetWindowsHookExW
UnhookWindowsHookEx
CallNextHookEx
CharNextExA
RealGetWindowClassW
IsChild
CreateWindowExW
DefWindowProcW
AttachThreadInput
PostMessageW
SendMessageW
UpdateLayeredWindowIndirect
SystemParametersInfoW
GetDesktopWindow
GetCaretBlinkTime
MessageBeep
IsWindow
GetDoubleClickTime
MessageBoxW
ShowWindow
LoadCursorW
CreateCursor
CreateIconIndirect
GetIconInfo
GetCursorInfo
RegisterClassW
GetClipboardFormatNameW
TrackMouseEvent
GetMessageExtraInfo
GetWindowTextW
EnumWindows
winmm
timeSetEvent
PlaySoundW
timeKillEvent
kernel32
LoadLibraryExW
ExitThread
FreeLibraryAndExitThread
GetCommandLineA
GetConsoleMode
ReadConsoleW
GetConsoleCP
SetStdHandle
HeapAlloc
HeapFree
HeapReAlloc
GetModuleFileNameA
GetStdHandle
GetACP
IsValidLocale
EnumSystemLocalesW
SetEnvironmentVariableA
RtlUnwindEx
WriteConsoleW
GetProcessHeap
FindFirstFileExA
FindNextFileA
IsValidCodePage
GetCPInfo
GetStringTypeW
LCMapStringW
GetSystemTimeAsFileTime
InitializeCriticalSectionAndSpinCount
SetLastError
RaiseException
DecodePointer
EncodePointer
RtlPcToFileHeader
VirtualFree
VirtualAlloc
CreateMutexW
ReleaseMutex
GetOEMCP
GetEnvironmentStringsW
InitializeSListHead
IsDebuggerPresent
IsProcessorFeaturePresent
TerminateProcess
SetUnhandledExceptionFilter
UnhandledExceptionFilter
RtlVirtualUnwind
RtlLookupFunctionEntry
RtlCaptureContext
FreeEnvironmentStringsW
CloseHandle
GetExitCodeProcess
GetUserGeoID
GetGeoInfoW
GetTimeZoneInformation
FindNextFileW
FindFirstFileExW
GetModuleHandleExW
GetModuleFileNameW
GetStartupInfoW
MoveFileExW
UnmapViewOfFile
MapViewOfFile
CreateFileMappingW
WriteFile
ReadFile
GetFileType
FlushFileBuffers
GetFileInformationByHandleEx
FileTimeToSystemTime
SystemTimeToTzSpecificLocalTime
MoveFileW
CopyFileW
GetVolumePathNamesForVolumeNameW
GetTempPathW
GetLongPathNameW
GetLogicalDrives
GetFileInformationByHandle
FindFirstFileW
FindClose
GetCurrentDirectoryW
GetTickCount64
QueryPerformanceFrequency
QueryPerformanceCounter
GetUserPreferredUILanguages
GetCurrencyFormatW
GetTimeFormatW
GetDateFormatW
ResetEvent
WaitForSingleObjectEx
GetLocalTime
GetCommandLineW
GetUserDefaultLCID
CompareStringW
GetSystemInfo
TlsFree
TlsSetValue
TlsGetValue
TlsAlloc
ResumeThread
TerminateThread
GetThreadPriority
SetThreadPriority
GetCurrentThread
CreateThread
GetCurrentProcess
WaitForMultipleObjects
Sleep
CreateEventW
SetEvent
DuplicateHandle
OutputDebugStringW
DeleteCriticalSection
LeaveCriticalSection
EnterCriticalSection
InitializeCriticalSection
ExitProcess
GetUserDefaultLangID
GetCurrentProcessId
GlobalSize
LoadLibraryA
GetLocaleInfoW
GlobalUnlock
GlobalLock
GlobalAlloc
OpenProcess
CheckRemoteDebuggerPresent
WaitForSingleObject
GetSystemDirectoryW
GetSystemWow64DirectoryW
HeapSize
GetConsoleWindow
CreateToolhelp32Snapshot
Process32NextW
Process32FirstW
LoadLibraryW
K32EnumProcesses
GetProcAddress
GetModuleHandleW
FreeLibrary
GetLastError
MultiByteToWideChar
WideCharToMultiByte
CreateFileW
GetFileAttributesExW
GetFullPathNameW
DeviceIoControl
LocalFree
FormatMessageW
CreateDirectoryW
DeleteFileW
GetFileAttributesW
RemoveDirectoryW
SetFileAttributesW
CreateDirectoryExW
FormatMessageA
GetSystemTime
SetFileTime
SetEndOfFile
SetFilePointerEx
GetCurrentThreadId
SetErrorMode
ExpandEnvironmentStringsW
CreateProcessW
ws2_32
WSAAsyncSelect
Sections
.text Size: 4.6MB - Virtual size: 4.6MB
IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ
.rdata Size: 25.1MB - Virtual size: 25.1MB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
.data Size: 99KB - Virtual size: 144KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE
.pdata Size: 253KB - Virtual size: 253KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
.qtmetad Size: 1KB - Virtual size: 1KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
.tls Size: 512B - Virtual size: 13B
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE
.gfids Size: 1024B - Virtual size: 516B
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
_RDATA Size: 512B - Virtual size: 272B
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
.rsrc Size: 159KB - Virtual size: 159KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
.reloc Size: 21KB - Virtual size: 21KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ