Static task
static1
Behavioral task
behavioral1
Sample
2024-02-03_3432de474263db0f8fc9281ce55a237a_ryuk.exe
Resource
win7-20231129-en
Behavioral task
behavioral2
Sample
2024-02-03_3432de474263db0f8fc9281ce55a237a_ryuk.exe
Resource
win10v2004-20231215-en
General
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Target
2024-02-03_3432de474263db0f8fc9281ce55a237a_ryuk
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Size
139KB
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MD5
3432de474263db0f8fc9281ce55a237a
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SHA1
9ada647887416e8bda449e4757202a66487c4626
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SHA256
69c63601d0b717f89eff8da02e76408b6b3fd1bc24ffeac9f265ad18ac4efdb3
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SHA512
423467bd37bea01dd25c350a2b882c8ba2c12db61bfc3102a0eddea1cabab053a066d9c7689fd574119a40ff656f42da26f0c8b31cff5fe250098038baa22a55
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SSDEEP
3072:EyTZXYw/VAJJhxN4noPgEu8iET8ymDHYS/Lvblv:EG/UJh8GNZi5ymfD
Malware Config
Signatures
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Unsigned PE 1 IoCs
Checks for missing Authenticode signature.
resource 2024-02-03_3432de474263db0f8fc9281ce55a237a_ryuk
Files
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2024-02-03_3432de474263db0f8fc9281ce55a237a_ryuk.exe windows:5 windows x64 arch:x64
12ac607aef5995042dcaaa0ee9a575a6
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
GetStdHandle
GetCommandLineW
WriteConsoleW
QueryPerformanceCounter
GetCurrentProcessId
GetCurrentThreadId
GetSystemTimeAsFileTime
InitializeSListHead
RtlCaptureContext
RtlLookupFunctionEntry
RtlVirtualUnwind
IsDebuggerPresent
UnhandledExceptionFilter
SetUnhandledExceptionFilter
GetStartupInfoW
IsProcessorFeaturePresent
GetModuleHandleW
RtlUnwindEx
GetLastError
SetLastError
EnterCriticalSection
LeaveCriticalSection
DeleteCriticalSection
InitializeCriticalSectionAndSpinCount
TlsAlloc
TlsGetValue
TlsSetValue
TlsFree
FreeLibrary
GetProcAddress
LoadLibraryExW
GetConsoleCP
WriteFile
GetModuleFileNameW
GetCurrentProcess
ExitProcess
TerminateProcess
GetModuleHandleExW
GetCommandLineA
HeapFree
HeapAlloc
CompareStringW
LCMapStringW
GetFileType
SetStdHandle
GetConsoleMode
CloseHandle
WaitForSingleObject
GetExitCodeProcess
CreateProcessW
GetFileAttributesExW
WideCharToMultiByte
CreateFileW
SetConsoleMode
GetNumberOfConsoleInputEvents
ReadConsoleInputW
PeekConsoleInputA
FindClose
FindFirstFileExW
FindNextFileW
IsValidCodePage
GetACP
GetOEMCP
GetCPInfo
MultiByteToWideChar
GetEnvironmentStringsW
FreeEnvironmentStringsW
SetEnvironmentVariableW
GetStringTypeW
GetProcessHeap
FlushFileBuffers
GetFileSizeEx
SetFilePointerEx
HeapSize
HeapReAlloc
RaiseException
Sections
.text Size: 86KB - Virtual size: 86KB
IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ
.rdata Size: 41KB - Virtual size: 41KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
.data Size: 3KB - Virtual size: 7KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE
.pdata Size: 5KB - Virtual size: 4KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
.gfids Size: 512B - Virtual size: 168B
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
.reloc Size: 2KB - Virtual size: 1KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ