Static task
static1
Behavioral task
behavioral1
Sample
2024-01-23_062779b7e49bff7c5f424e7ace9c7706_ryuk.exe
Resource
win7-20231215-en
Behavioral task
behavioral2
Sample
2024-01-23_062779b7e49bff7c5f424e7ace9c7706_ryuk.exe
Resource
win10v2004-20231222-en
General
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Target
2024-01-23_062779b7e49bff7c5f424e7ace9c7706_ryuk
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Size
3.3MB
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MD5
062779b7e49bff7c5f424e7ace9c7706
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SHA1
61264a13c22b46fa795e21a186cff078e9f71d4a
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SHA256
a9462b812a5924a8b003bfd0056ff71fff21639d3740dbf0c0dcf194629915da
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SHA512
8586e0557b8b53e546eb0c89cc853fc48a6bc37bd2e9e1620154ade63aee5eaa59b265384c718eeb5bee5db975789873e44360dca3e47c137e23cb65755355d4
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SSDEEP
49152:pS4IXq7F2g4pN7mCIs0W9yfOHRo6eJawJKv9PVGRyu81yGCELxpQQCtY3Qj8fLri:/t4XS5sh9EOHP66jGRd81yGzQQCt4rzu
Malware Config
Signatures
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Unsigned PE 1 IoCs
Checks for missing Authenticode signature.
resource 2024-01-23_062779b7e49bff7c5f424e7ace9c7706_ryuk
Files
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2024-01-23_062779b7e49bff7c5f424e7ace9c7706_ryuk.exe windows:6 windows x64 arch:x64
db9911c50c6d2020dc97b998e943a127
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
CreateThread
CreateProcessW
GetModuleFileNameW
LocalFree
GetFileAttributesW
CreateFileA
CreateFileW
GetFileSize
ReadFile
SetFilePointer
WriteFile
GetLastError
EnterCriticalSection
LeaveCriticalSection
DeleteCriticalSection
SetEvent
ResetEvent
WaitForSingleObjectEx
CreateEventW
GetModuleHandleW
GetProcAddress
RtlCaptureContext
RtlLookupFunctionEntry
RtlVirtualUnwind
UnhandledExceptionFilter
Sleep
GetCurrentProcess
TerminateProcess
IsProcessorFeaturePresent
IsDebuggerPresent
GetStartupInfoW
QueryPerformanceCounter
GetCurrentProcessId
GetCurrentThreadId
GetSystemTimeAsFileTime
InitializeSListHead
SetEndOfFile
HeapSize
ReadConsoleW
GetTimeZoneInformation
SetStdHandle
OutputDebugStringW
SetConsoleCtrlHandler
GetProcessHeap
SetEnvironmentVariableW
FreeEnvironmentStringsW
GetEnvironmentStringsW
GetCommandLineA
GetOEMCP
GetACP
WaitForSingleObject
CloseHandle
GetCommandLineW
GetStdHandle
GetTempPathW
CreateDirectoryW
VerSetConditionMask
FindResourceW
SizeofResource
LockResource
LoadResource
VerifyVersionInfoW
SetUnhandledExceptionFilter
IsValidCodePage
FindNextFileW
FindFirstFileExW
WideCharToMultiByte
MultiByteToWideChar
GetStringTypeW
FormatMessageW
EncodePointer
DecodePointer
SetLastError
InitializeCriticalSectionAndSpinCount
TlsAlloc
TlsGetValue
TlsSetValue
TlsFree
GetTickCount
CompareStringW
LCMapStringW
GetLocaleInfoW
GetCPInfo
RtlPcToFileHeader
RaiseException
RtlUnwindEx
InterlockedPushEntrySList
InterlockedFlushSList
FreeLibrary
LoadLibraryExW
GetFileAttributesExW
ExitProcess
GetModuleHandleExW
HeapAlloc
HeapFree
HeapReAlloc
GetCurrentThread
GetConsoleCP
GetConsoleMode
GetFileSizeEx
SetFilePointerEx
GetDateFormatW
GetTimeFormatW
IsValidLocale
GetUserDefaultLCID
EnumSystemLocalesW
GetFileType
FlushFileBuffers
FindClose
WriteConsoleW
user32
MessageBoxA
LoadImageW
LoadCursorW
RedrawWindow
EndPaint
UpdateWindow
GetSystemMetrics
ShowWindow
DestroyWindow
CreateWindowExW
RegisterClassExW
DefWindowProcW
BeginPaint
gdi32
GetStockObject
MoveToEx
GetObjectW
SelectObject
Rectangle
LineTo
DeleteObject
DeleteDC
CreateSolidBrush
CreatePen
CreateCompatibleDC
BitBlt
shell32
CommandLineToArgvW
SHFileOperationW
Sections
.text Size: 687KB - Virtual size: 687KB
IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ
.rdata Size: 191KB - Virtual size: 191KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
.data Size: 8KB - Virtual size: 25KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE
.pdata Size: 39KB - Virtual size: 39KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
.gfids Size: 2KB - Virtual size: 2KB
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: 56.8MB - Virtual size: 56.8MB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
.reloc Size: 5KB - Virtual size: 4KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ