2024-03-05_f3dc732d539b500f15a91eca1d55f79d_ryuk

Sharing

Copy URL Twitter E-mail

General

Target

2024-03-05_f3dc732d539b500f15a91eca1d55f79d_ryuk
Size

280KB
MD5

f3dc732d539b500f15a91eca1d55f79d
SHA1

667a435cea0e7fa82a8f84c6212cd7b4cd92bd44
SHA256

c6207cb74a323769e6d608489225d867816af20b2c6fe5e6e33b3cf09372c676
SHA512

42d993b2ee808ee5f75f99e3804136bf918aa2aff0a99212c54ce6384af673197e36caa4ab53ef478bffe9ecbcb32f11e3b252c641bca934d49e52fe0e0d1b6b
SSDEEP

6144:BmcS2I+HvgZ/wtc/rxKUn/1mAgxgRixk0USohFn0Cv:9S2tI9wsxKQ0wSo77v

Score

3^/10

Malware Config

Signatures

Unsigned PE 1 IoCs

Checks for missing Authenticode signature.

resource
2024-03-05_f3dc732d539b500f15a91eca1d55f79d_ryuk

Files

2024-03-05_f3dc732d539b500f15a91eca1d55f79d_ryuk
.exe windows:6 windows x64 arch:x64

b9b2c1fc9bf0e67f4bf45c7286e4ff86

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

PDB Paths

Service64.pdb

Imports

windivert

WinDivertHelperCalcChecksums
WinDivertOpen
WinDivertSend
WinDivertHelperParsePacket
WinDivertRecvEx
WinDivertClose

kernel32

SetEvent
CloseHandle
CreateThread
CancelIo
CreateFileW
GetOverlappedResult
InitializeCriticalSectionEx
GetLastError
RaiseException
DecodePointer
LocalFree
DeleteCriticalSection
GetConsoleMode
GetConsoleCP
GetExitCodeThread
CreateEventW
WaitForSingleObject
FindResourceW
LoadResource
LockResource
SizeofResource
SetFilePointerEx
FlushFileBuffers
WriteConsoleW
IsValidCodePage
GetOEMCP
GetEnvironmentStringsW
Sleep
CompareStringW
HeapSize
SetStdHandle
SetEnvironmentVariableA
FindNextFileA
FindFirstFileExA
FindClose
WideCharToMultiByte
EnterCriticalSection
LeaveCriticalSection
EncodePointer
MultiByteToWideChar
SetLastError
InitializeCriticalSectionAndSpinCount
TlsAlloc
TlsGetValue
TlsSetValue
TlsFree
GetSystemTimeAsFileTime
GetModuleHandleW
GetProcAddress
LCMapStringW
GetLocaleInfoW
GetStringTypeW
GetCPInfo
ResetEvent
WaitForSingleObjectEx
RtlCaptureContext
RtlLookupFunctionEntry
RtlVirtualUnwind
UnhandledExceptionFilter
SetUnhandledExceptionFilter
GetCurrentProcess
TerminateProcess
IsProcessorFeaturePresent
IsDebuggerPresent
GetStartupInfoW
QueryPerformanceCounter
GetCurrentProcessId
GetCurrentThreadId
InitializeSListHead
OutputDebugStringW
RtlPcToFileHeader
RtlUnwindEx
FreeLibrary
LoadLibraryExW
HeapAlloc
HeapReAlloc
HeapFree
ExitProcess
GetModuleHandleExW
GetModuleFileNameA
GetStdHandle
WriteFile
GetCommandLineA
GetCommandLineW
GetACP
GetFileType
IsValidLocale
GetUserDefaultLCID
EnumSystemLocalesW
GetProcessHeap
FreeEnvironmentStringsW

advapi32

DeregisterEventSource
SetServiceStatus
RegisterServiceCtrlHandlerW
StartServiceCtrlDispatcherW
RegisterEventSourceW
ReportEventW

ole32

CoCreateInstance
CoInitializeSecurity
CoInitializeEx
CoUninitialize

oleaut32

VariantInit
SysFreeString
SysAllocString
VariantClear

Sections

.text
Size: 169KB - Virtual size: 168KB

IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ

.rdata
Size: 89KB - Virtual size: 89KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.data
Size: 4KB - Virtual size: 10KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

.pdata
Size: 9KB - Virtual size: 9KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.gfids
Size: 512B - Virtual size: 504B

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.tls
Size: 512B - Virtual size: 9B

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

.rsrc
Size: 2KB - Virtual size: 1KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.reloc
Size: 3KB - Virtual size: 3KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ

Sharing

General

Malware Config

Signatures

Files

b9b2c1fc9bf0e67f4bf45c7286e4ff86

Headers

DLL Characteristics

File Characteristics

PDB Paths

Imports

windivert

kernel32

advapi32

ole32

oleaut32

Sections

.text Size: 169KB - Virtual size: 168KB

.rdata Size: 89KB - Virtual size: 89KB

.data Size: 4KB - Virtual size: 10KB

.pdata Size: 9KB - Virtual size: 9KB

.gfids Size: 512B - Virtual size: 504B

.tls Size: 512B - Virtual size: 9B

.rsrc Size: 2KB - Virtual size: 1KB

.reloc Size: 3KB - Virtual size: 3KB

.text
Size: 169KB - Virtual size: 168KB

.rdata
Size: 89KB - Virtual size: 89KB

.data
Size: 4KB - Virtual size: 10KB

.pdata
Size: 9KB - Virtual size: 9KB

.gfids
Size: 512B - Virtual size: 504B

.tls
Size: 512B - Virtual size: 9B

.rsrc
Size: 2KB - Virtual size: 1KB

.reloc
Size: 3KB - Virtual size: 3KB