Behavioral task
behavioral1
Sample
2024-10-08_edc22135239c9a64b64b631ec1ded736_ryuk.exe
Resource
win7-20240708-en
Behavioral task
behavioral2
Sample
2024-10-08_edc22135239c9a64b64b631ec1ded736_ryuk.exe
Resource
win10v2004-20241007-en
General
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Target
2024-10-08_edc22135239c9a64b64b631ec1ded736_ryuk
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Size
30.7MB
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MD5
edc22135239c9a64b64b631ec1ded736
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SHA1
3f44bcbec2fadc5cd27280e0ffb7096d23e12d75
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SHA256
aed5c7d68f5ba7c2bc42a727d81aeea4c8bccbf99b39c5e80eda07923cd49867
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SHA512
2fd222ce8bc58cfed15e4e619b97c6a40b01dd0bab5732f1950a3b8aed1c61a45d19a33d2776227f2193547343bef556bcc56d289c3ee73e4542ee23b63567df
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SSDEEP
786432:xNsBagGD/qEcJDZLSF95L3hofFDO59qpz2BnY:3WagGDGDZLyF35qJB
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 2024-10-08_edc22135239c9a64b64b631ec1ded736_ryuk
Files
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2024-10-08_edc22135239c9a64b64b631ec1ded736_ryuk.exe windows:6 windows x64 arch:x64
b7679088d6921d7b1b61adf2bdb81003
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
MessageBoxA
kernel32
GetFileInformationByHandle
SetEndOfFile
SetDllDirectoryW
GetModuleFileNameW
GetProcAddress
GetLastError
GetCommandLineW
GetEnvironmentVariableW
SetEnvironmentVariableW
ExpandEnvironmentStringsW
GetTempPathW
WaitForSingleObject
Sleep
GetExitCodeProcess
CreateProcessW
GetStartupInfoW
LoadLibraryExW
GetShortPathNameW
LoadLibraryA
FormatMessageA
MultiByteToWideChar
WideCharToMultiByte
HeapReAlloc
HeapSize
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
GetFileType
CloseHandle
PeekNamedPipe
SystemTimeToTzSpecificLocalTime
FileTimeToSystemTime
GetFullPathNameW
CreateDirectoryW
RemoveDirectoryW
FindClose
FindFirstFileExW
FindNextFileW
SetStdHandle
SetConsoleCtrlHandler
DeleteFileW
GetStdHandle
WriteFile
ExitProcess
GetModuleHandleExW
GetACP
HeapFree
HeapAlloc
GetConsoleMode
ReadConsoleW
SetFilePointerEx
GetConsoleCP
CompareStringW
LCMapStringW
GetCurrentDirectoryW
FlushFileBuffers
GetFileAttributesExW
IsValidCodePage
GetOEMCP
GetCPInfo
GetEnvironmentStringsW
FreeEnvironmentStringsW
SetEnvironmentVariableA
GetStringTypeW
GetProcessHeap
WriteConsoleW
GetTimeZoneInformation
ws2_32
ntohl
Sections
.text Size: 128KB - Virtual size: 128KB
IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ
.rdata Size: 59KB - Virtual size: 59KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
.data Size: 3KB - Virtual size: 56KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE
.pdata Size: 7KB - Virtual size: 6KB
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: 189KB - Virtual size: 189KB
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