Behavioral task
behavioral1
Sample
2024-06-07_9c9191acf1c7e33e734e77c3a632dcca_ryuk.exe
Resource
win7-20240419-en
General
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Target
2024-06-07_9c9191acf1c7e33e734e77c3a632dcca_ryuk
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Size
23.6MB
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MD5
9c9191acf1c7e33e734e77c3a632dcca
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SHA1
c35981cf80e7e0884dbf4eb78bd9ae3cd0846162
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SHA256
ce6e369fc4a955a6d4c4d69c63b56679b530a10cb9eb5e64ed26ec7801833310
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SHA512
b9a8ffd5ffb81b9835660b35c831c1d9307c6c23b162b8706ead8411a68bc1f72a0d107e5af25cbebfd3571648874706a966c7f42d90833befcc04bfb2fc3938
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SSDEEP
393216:TYjcjnNd9vqZQI4DM+sBg8uip1x8OZlYgLnvY5ShR4uwgGDFr1nBBGNlWjt3hrst:TYAo73q1IWIGQ20GDFrZTulWR4X
Malware Config
Signatures
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Detects Pyinstaller 1 IoCs
resource yara_rule sample pyinstaller -
Unsigned PE 1 IoCs
Checks for missing Authenticode signature.
resource 2024-06-07_9c9191acf1c7e33e734e77c3a632dcca_ryuk
Files
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2024-06-07_9c9191acf1c7e33e734e77c3a632dcca_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: 60KB - Virtual size: 59KB
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
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sys.pyc