2024-02-18_ef93198645cf594a244f5b9d7cb700b1_ryuk

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General

Target

2024-02-18_ef93198645cf594a244f5b9d7cb700b1_ryuk
Size

656KB
MD5

ef93198645cf594a244f5b9d7cb700b1
SHA1

bd780ca11ec46d0648c906527730afc2730e0dcb
SHA256

614b56f873bca674eeb9e5efb0cfdb0d28ed22434bcec71b270e4b5e01f72123
SHA512

fbed6bbe67b4fe6bd015a36eefc2536a334c43b4c4a2fb2bd55588a28e67dd727506ad26a33f804492c0083f98dd801d0b922dae4bace0964cf8d5717f03ddee
SSDEEP

12288:qwYLD8Jn07XRSfVB6e6h5z6pEDDr3zdypAbfdXDVyHU3UeW6:DYe07hSdBzYCgDrDdSUftDVUE

Score

3^/10

Malware Config

Signatures

Unsigned PE 1 IoCs

Checks for missing Authenticode signature.

resource
2024-02-18_ef93198645cf594a244f5b9d7cb700b1_ryuk

Files

2024-02-18_ef93198645cf594a244f5b9d7cb700b1_ryuk
.exe windows:5 windows x64 arch:x64

d194e0bac0193995da79eecfed55bdc8

Headers

DLL Characteristics

IMAGE_DLLCHARACTERISTICS_HIGH_ENTROPY_VA
IMAGE_DLLCHARACTERISTICS_NX_COMPAT
IMAGE_DLLCHARACTERISTICS_TERMINAL_SERVER_AWARE

File Characteristics

IMAGE_FILE_EXECUTABLE_IMAGE
IMAGE_FILE_LARGE_ADDRESS_AWARE

PDB Paths

c:\builds\moz2_slave\m-rel-w32-00000000000000000000\build\src\obj-firefox\security\sandbox\win\wow_helper\wow_helper.pdb

Imports

kernel32

VirtualProtectEx
ReadProcessMemory
WriteProcessMemory
GetModuleHandleW
GetProcAddress
OpenProcess
RtlCaptureContext
RtlLookupFunctionEntry
RtlVirtualUnwind
UnhandledExceptionFilter
SetUnhandledExceptionFilter
GetCurrentProcess
TerminateProcess
IsProcessorFeaturePresent
QueryPerformanceCounter
GetCurrentProcessId
GetCurrentThreadId
GetSystemTimeAsFileTime
InitializeSListHead
IsDebuggerPresent
GetStartupInfoW
RtlUnwindEx
RtlPcToFileHeader
RaiseException
GetLastError
SetLastError
EnterCriticalSection
LeaveCriticalSection
DeleteCriticalSection
InitializeCriticalSectionAndSpinCount
TlsAlloc
TlsGetValue
TlsSetValue
TlsFree
FreeLibrary
LoadLibraryExW
GetStdHandle
WriteFile
GetModuleFileNameW
MultiByteToWideChar
WideCharToMultiByte
ExitProcess
GetModuleHandleExW
GetACP
HeapFree
HeapAlloc
GetStringTypeW
FindClose
FindFirstFileExW
FindNextFileW
IsValidCodePage
GetOEMCP
GetCPInfo
GetCommandLineA
GetCommandLineW
GetEnvironmentStringsW
FreeEnvironmentStringsW
SetStdHandle
GetFileType
LCMapStringW
GetProcessHeap
HeapSize
HeapReAlloc
FlushFileBuffers
GetConsoleCP
GetConsoleMode
SetFilePointerEx
WriteConsoleW
CloseHandle
CreateFileW

Sections

.text
Size: 43KB - Virtual size: 42KB

IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ

.TargetC
Size: 512B - Virtual size: 139B

IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ

.rdata
Size: 36KB - Virtual size: 35KB

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: 188B

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.rsrc
Size: 1024B - Virtual size: 888B

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.reloc
Size: 568KB - Virtual size: 572KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

Sharing

General

Malware Config

Signatures

Files

d194e0bac0193995da79eecfed55bdc8

Headers

DLL Characteristics

File Characteristics

PDB Paths

Imports

kernel32

Sections

.text Size: 43KB - Virtual size: 42KB

.TargetC Size: 512B - Virtual size: 139B

.rdata Size: 36KB - Virtual size: 35KB

.data Size: 2KB - Virtual size: 7KB

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

.gfids Size: 512B - Virtual size: 188B

.rsrc Size: 1024B - Virtual size: 888B

.reloc Size: 568KB - Virtual size: 572KB

.text
Size: 43KB - Virtual size: 42KB

.TargetC
Size: 512B - Virtual size: 139B

.rdata
Size: 36KB - Virtual size: 35KB

.data
Size: 2KB - Virtual size: 7KB

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

.gfids
Size: 512B - Virtual size: 188B

.rsrc
Size: 1024B - Virtual size: 888B

.reloc
Size: 568KB - Virtual size: 572KB