Behavioral task
behavioral1
Sample
2024-05-10_3d70017a2b6d0c6859d7004b651a5d7a_ryuk.exe
Resource
win7-20240221-en
Behavioral task
behavioral2
Sample
2024-05-10_3d70017a2b6d0c6859d7004b651a5d7a_ryuk.exe
Resource
win10v2004-20240426-en
General
-
Target
2024-05-10_3d70017a2b6d0c6859d7004b651a5d7a_ryuk
-
Size
11.0MB
-
MD5
3d70017a2b6d0c6859d7004b651a5d7a
-
SHA1
f954835541b5a2e7863091a626007f3df181a3ed
-
SHA256
bc28a9c3ab8c1e7e13f6634c1eff7bed34d3dec2f5979f25101270303e69d06e
-
SHA512
6fa6f871e61ce7294db6e1dee046b62fd4cf515c615fb5d63a1db207f5d976c41720e9124f607b7a928b058dff93bd2056b84eef955a8c01baa7767244ca6140
-
SSDEEP
196608:EVFLHg8HxKtyCTFdynneMeR5U8kB1eLOPwdrhEVSL2v8hpffR5vSGRNJpoEzoCDh:OgQxiyKunnQDQBPw5aVSLo8phZS0yEEG
Malware Config
Signatures
-
Detects Pyinstaller 1 IoCs
Processes:
resource yara_rule sample pyinstaller -
Unsigned PE 1 IoCs
Checks for missing Authenticode signature.
Processes:
resource 2024-05-10_3d70017a2b6d0c6859d7004b651a5d7a_ryuk
Files
-
2024-05-10_3d70017a2b6d0c6859d7004b651a5d7a_ryuk.exe windows:5 windows x64 arch:x64
94984869e1c4b93c0069850d9e3b564b
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
user32
MessageBoxW
MessageBoxA
kernel32
GetFileType
SetEndOfFile
HeapReAlloc
GetLastError
SetDllDirectoryW
GetModuleFileNameW
GetProcAddress
GetCommandLineW
GetEnvironmentVariableW
SetEnvironmentVariableW
ExpandEnvironmentStringsW
GetTempPathW
WaitForSingleObject
Sleep
GetExitCodeProcess
CreateProcessW
GetStartupInfoW
LoadLibraryExW
GetShortPathNameW
FormatMessageW
LoadLibraryA
MultiByteToWideChar
WideCharToMultiByte
HeapSize
GetTimeZoneInformation
RtlCaptureContext
RtlLookupFunctionEntry
RtlVirtualUnwind
UnhandledExceptionFilter
SetUnhandledExceptionFilter
GetCurrentProcess
TerminateProcess
IsProcessorFeaturePresent
QueryPerformanceCounter
GetCurrentProcessId
GetCurrentThreadId
GetSystemTimeAsFileTime
InitializeSListHead
IsDebuggerPresent
GetModuleHandleW
RtlUnwindEx
SetLastError
EnterCriticalSection
LeaveCriticalSection
DeleteCriticalSection
InitializeCriticalSectionAndSpinCount
TlsAlloc
TlsGetValue
TlsSetValue
TlsFree
FreeLibrary
GetCommandLineA
ReadFile
CreateFileW
GetDriveTypeW
RaiseException
CloseHandle
PeekNamedPipe
SystemTimeToTzSpecificLocalTime
FileTimeToSystemTime
GetFullPathNameW
GetFullPathNameA
CreateDirectoryW
RemoveDirectoryW
FindClose
FindFirstFileExW
FindNextFileW
SetStdHandle
SetConsoleCtrlHandler
DeleteFileW
GetStdHandle
WriteFile
ExitProcess
GetModuleHandleExW
GetACP
HeapFree
HeapAlloc
GetConsoleMode
ReadConsoleW
SetFilePointerEx
GetConsoleCP
CompareStringW
LCMapStringW
GetCurrentDirectoryW
FlushFileBuffers
SetEnvironmentVariableA
GetFileAttributesExW
IsValidCodePage
GetOEMCP
GetCPInfo
GetEnvironmentStringsW
FreeEnvironmentStringsW
GetStringTypeW
GetProcessHeap
WriteConsoleW
ws2_32
ntohl
Sections
.text Size: 131KB - Virtual size: 130KB
IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ
.rdata Size: 61KB - Virtual size: 61KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
.data Size: 3KB - Virtual size: 60KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE
.pdata Size: 7KB - Virtual size: 7KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
.gfids Size: 512B - Virtual size: 172B
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
.rsrc Size: 79KB - Virtual size: 79KB
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
-
stub.pyc