Static task
static1
Behavioral task
behavioral1
Sample
2024-01-18_9ea75e2605ecfb20e3c37369896a9b18_ryuk.exe
Resource
win7-20231215-en
Behavioral task
behavioral2
Sample
2024-01-18_9ea75e2605ecfb20e3c37369896a9b18_ryuk.exe
Resource
win10v2004-20231215-en
General
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Target
2024-01-18_9ea75e2605ecfb20e3c37369896a9b18_ryuk
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Size
106KB
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MD5
9ea75e2605ecfb20e3c37369896a9b18
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SHA1
6d5648ee882c38c7f787334a613683d6c78f1ac0
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SHA256
817cb410038057978ac2f48735de09e3a1bb2fd38087d0e1a3b671c79eeea720
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SHA512
c7971c8d2db316e119903ec57d21e8c8e5848a0d08e5e6be17bf906a0acc562322da78a0ce2d28710cef088579ad30660f36ccd1d1da137208cf6cc3676f52f1
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SSDEEP
1536:j50iRrgI0efj002eu88v+5oUXqgFfsWydc9dlcd6cZmR9fj:F0iRUled2eho+5oUaUyUjcZmR9fj
Malware Config
Signatures
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Unsigned PE 1 IoCs
Checks for missing Authenticode signature.
resource 2024-01-18_9ea75e2605ecfb20e3c37369896a9b18_ryuk
Files
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2024-01-18_9ea75e2605ecfb20e3c37369896a9b18_ryuk.exe windows:6 windows x64 arch:x64
828addf1a90031de137f9bb3e4b60c4d
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
GetFileAttributesW
CloseHandle
GetLastError
WaitForSingleObject
GetExitCodeProcess
CreateProcessW
GetModuleFileNameW
LoadResource
LockResource
SizeofResource
LoadLibraryW
FindResourceW
WriteConsoleW
SetFilePointerEx
GetConsoleMode
GetConsoleCP
FlushFileBuffers
HeapReAlloc
HeapSize
GetProcessHeap
RtlCaptureContext
RtlLookupFunctionEntry
RtlVirtualUnwind
UnhandledExceptionFilter
SetUnhandledExceptionFilter
GetCurrentProcess
TerminateProcess
IsProcessorFeaturePresent
QueryPerformanceCounter
GetCurrentProcessId
GetCurrentThreadId
GetSystemTimeAsFileTime
InitializeSListHead
IsDebuggerPresent
GetStartupInfoW
GetModuleHandleW
RtlUnwindEx
RtlPcToFileHeader
RaiseException
SetLastError
EnterCriticalSection
LeaveCriticalSection
DeleteCriticalSection
InitializeCriticalSectionAndSpinCount
TlsAlloc
TlsGetValue
TlsSetValue
TlsFree
FreeLibrary
GetProcAddress
LoadLibraryExW
GetStdHandle
WriteFile
MultiByteToWideChar
WideCharToMultiByte
ExitProcess
GetModuleHandleExW
GetACP
HeapFree
HeapAlloc
FindClose
FindFirstFileExW
FindNextFileW
IsValidCodePage
GetOEMCP
GetCPInfo
GetCommandLineA
GetCommandLineW
GetEnvironmentStringsW
FreeEnvironmentStringsW
LCMapStringW
SetStdHandle
GetFileType
GetStringTypeW
CreateFileW
user32
wsprintfW
MessageBoxW
shell32
ShellExecuteExW
shlwapi
PathCombineW
PathRemoveFileSpecW
PathCanonicalizeW
Sections
.text Size: 40KB - Virtual size: 40KB
IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ
.rdata Size: 36KB - Virtual size: 36KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
.data Size: 2KB - Virtual size: 7KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE
.pdata Size: 3KB - Virtual size: 3KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
.gfids Size: 512B - Virtual size: 192B
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
.rsrc Size: 19KB - Virtual size: 19KB
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