2024-02-21_b8421f01c514a6f18aac19429f52c524_ryuk

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General

Target

2024-02-21_b8421f01c514a6f18aac19429f52c524_ryuk
Size

635KB
MD5

b8421f01c514a6f18aac19429f52c524
SHA1

97e9da9e38225f47865c3d8b2ec4c2aaace9ce2b
SHA256

58f560ad8cbf4a253f99ab3aade24c5daeded4d2fdd568a1805c7cfc5d26f463
SHA512

75860eb3bed8fca7712c5b1bd6c7ca6c167c4a47db9f36b4a021c26a9199b744feb7f7d01d0545222b8e94d05b1b1c29a7642cb00662f2d91ffe0fb0db4bd660
SSDEEP

12288:g+oGH2dxL+dA2vRFae+MD2MqWXV8XQ1War:ge2dxKjRce+4LqWX6XuWar

Score

3^/10

Malware Config

Signatures

Unsigned PE 1 IoCs

Checks for missing Authenticode signature.

resource
2024-02-21_b8421f01c514a6f18aac19429f52c524_ryuk

Files

2024-02-21_b8421f01c514a6f18aac19429f52c524_ryuk
.exe windows:5 windows x64 arch:x64

30fc819c693eeaf8941de56adbfe3dab

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

C:\buildslave\unity\build\build\WindowsStandaloneSupport\Variations\win64_nondevelopment_mono\WindowsPlayer_x64_Master.pdb

Imports

unityplayer

UnityMain

kernel32

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

advapi32

SystemFunction036

Exports

Exports

AmdPowerXpressRequestHighPerformance
NvOptimusEnablement

Sections

.text
Size: 39KB - Virtual size: 39KB

IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ

.rdata
Size: 34KB - Virtual size: 34KB

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: 2KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.gfids
Size: 512B - Virtual size: 168B

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.rsrc
Size: 552KB - Virtual size: 552KB

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

Sharing

General

Malware Config

Signatures

Files

30fc819c693eeaf8941de56adbfe3dab

Headers

DLL Characteristics

File Characteristics

PDB Paths

Imports

unityplayer

kernel32

advapi32

Exports

Exports

Sections

.text Size: 39KB - Virtual size: 39KB

.rdata Size: 34KB - Virtual size: 34KB

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

.pdata Size: 3KB - Virtual size: 2KB

.gfids Size: 512B - Virtual size: 168B

.rsrc Size: 552KB - Virtual size: 552KB

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

.text
Size: 39KB - Virtual size: 39KB

.rdata
Size: 34KB - Virtual size: 34KB

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

.pdata
Size: 3KB - Virtual size: 2KB

.gfids
Size: 512B - Virtual size: 168B

.rsrc
Size: 552KB - Virtual size: 552KB

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