Static task
static1
Behavioral task
behavioral1
Sample
2024-05-15_ff6aaa2278d4386313becf3b3c4d11d5_ryuk.exe
Resource
win7-20240221-en
Behavioral task
behavioral2
Sample
2024-05-15_ff6aaa2278d4386313becf3b3c4d11d5_ryuk.exe
Resource
win10v2004-20240508-en
General
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Target
2024-05-15_ff6aaa2278d4386313becf3b3c4d11d5_ryuk
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Size
2.6MB
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MD5
ff6aaa2278d4386313becf3b3c4d11d5
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SHA1
58c5471492ce9129848ba4db036041a5ffb2f427
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SHA256
3a3255afa9bc22ca280d441c5d5fe0375491f4800a05847dd96c4e0ffca5b97b
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SHA512
f4139b0d51e7615db27133ee69c9ee09985f68b071d8af2dd02593ad2b5886725ac0be68bc592eec0dbd1d6dc9795d0f24b363ea35afb6486bff8f3027b858f9
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SSDEEP
49152:RlQldtZnNs4T3Bet25T7ryMudCDiMhaVxiSMOw8No:RlQlj1x1TvuCDrak
Malware Config
Signatures
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Unsigned PE 1 IoCs
Checks for missing Authenticode signature.
resource 2024-05-15_ff6aaa2278d4386313becf3b3c4d11d5_ryuk
Files
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2024-05-15_ff6aaa2278d4386313becf3b3c4d11d5_ryuk.exe windows:6 windows x64 arch:x64
01b9da837ad59fe5b944e8a904e822e7
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
kernel32
Beep
CloseHandle
CreateDirectoryW
CreateFileA
CreateFileW
CreateMutexW
CreateProcessA
CreateToolhelp32Snapshot
DeleteCriticalSection
EncodePointer
EnterCriticalSection
ExitProcess
FindClose
FindFirstFileExW
FindNextFileW
FindResourceA
FlsAlloc
FlsFree
FlsGetValue
FlsSetValue
FlushFileBuffers
FormatMessageW
FreeEnvironmentStringsW
FreeLibrary
FreeResource
GetACP
GetCPInfo
GetCommandLineA
GetCommandLineW
GetComputerNameW
GetConsoleMode
GetConsoleOutputCP
GetCurrentProcess
GetCurrentProcessId
GetCurrentThreadId
GetEnvironmentStringsW
GetFileSizeEx
GetFileType
GetLastError
GetModuleFileNameW
GetModuleHandleExW
GetModuleHandleW
GetOEMCP
GetProcAddress
GetProcessHeap
GetStartupInfoW
GetStdHandle
GetStringTypeW
GetSystemTimeAsFileTime
GetTickCount64
HeapAlloc
HeapFree
HeapReAlloc
HeapSize
InitializeCriticalSection
InitializeCriticalSectionAndSpinCount
InitializeSListHead
IsDebuggerPresent
IsProcessorFeaturePresent
IsValidCodePage
LCMapStringW
LeaveCriticalSection
LoadLibraryA
LoadLibraryExW
LoadResource
LockResource
MultiByteToWideChar
Process32First
Process32Next
QueryPerformanceCounter
QueryPerformanceFrequency
RaiseException
ReadConsoleW
ReadFile
RtlCaptureContext
RtlLookupFunctionEntry
RtlPcToFileHeader
RtlUnwindEx
RtlVirtualUnwind
SetCurrentDirectoryA
SetEndOfFile
SetFilePointerEx
SetLastError
SetStdHandle
SetThreadExecutionState
SetUnhandledExceptionFilter
SizeofResource
Sleep
TerminateProcess
TlsAlloc
TlsFree
TlsGetValue
TlsSetValue
UnhandledExceptionFilter
VerSetConditionMask
WideCharToMultiByte
WriteConsoleW
WriteFile
lstrcmpiA
user32
AdjustWindowRectEx
BringWindowToTop
ChangeDisplaySettingsExW
ClientToScreen
ClipCursor
CreateWindowExW
DefWindowProcW
DestroyIcon
DestroyWindow
DispatchMessageW
EnumDisplayDevicesW
EnumDisplayMonitors
EnumDisplaySettingsW
GetClientRect
GetCursorPos
GetDC
GetKeyState
GetMessageTime
GetMonitorInfoW
GetPropW
GetRawInputData
GetRawInputDeviceInfoA
GetRawInputDeviceList
GetWindowLongW
GetWindowPlacement
LoadCursorW
LoadImageW
MapVirtualKeyW
MessageBoxA
MonitorFromWindow
OffsetRect
PeekMessageW
PtInRect
RegisterClassExW
RegisterDeviceNotificationW
RegisterRawInputDevices
ReleaseCapture
ReleaseDC
RemovePropW
ScreenToClient
SetCapture
SetCursor
SetCursorPos
SetFocus
SetForegroundWindow
SetPropW
SetRect
SetWindowLongW
SetWindowPlacement
SetWindowPos
ShowWindow
SystemParametersInfoW
ToUnicode
TrackMouseEvent
TranslateMessage
UnregisterClassW
UnregisterDeviceNotification
WindowFromPoint
gdi32
ChoosePixelFormat
CreateDCW
CreateRectRgn
DeleteDC
DeleteObject
DescribePixelFormat
GetDeviceCaps
SetDeviceGammaRamp
SetPixelFormat
SwapBuffers
shell32
DragAcceptFiles
DragFinish
DragQueryFileW
DragQueryPoint
Sections
.text Size: 179KB - Virtual size: 179KB
IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ
.rdata Size: 159KB - Virtual size: 159KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
.data Size: 7KB - Virtual size: 21KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE
.pdata Size: 9KB - Virtual size: 8KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
.00cfg Size: 512B - Virtual size: 56B
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
.gxfg Size: 7KB - Virtual size: 6KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
.retplne Size: 512B - Virtual size: 140B
_RDATA Size: 512B - Virtual size: 348B
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
.rsrc Size: 1.2MB - Virtual size: 1.2MB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
.reloc Size: 2KB - Virtual size: 2KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ