2024-02-12_1bf3fd67fb8bbc13f8a3dd8aaae9b23b_ryuk

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General

Target

2024-02-12_1bf3fd67fb8bbc13f8a3dd8aaae9b23b_ryuk
Size

771KB
MD5

1bf3fd67fb8bbc13f8a3dd8aaae9b23b
SHA1

4bb7af3df33cd532460234e45524974289738980
SHA256

f8831e22a8e42e71f24353397d6ed3fd9311dc975d66a696832be9463eacfb22
SHA512

3da2ceea9dd099ab1de3a7d204c6e89d45dae6243e491b1728f9a82cedd51d4e42ad557caa71235420c4131a63bb853b21300edd482acbce891ba959c20b0898
SSDEEP

12288:tlm0Lofm5HsgMrRYx3SOWBZXTPX473+Da7oUuj6Y81h+3ZlMw0:/oKCRYx3tWBdPX4r+u7oRmcI

Score

3^/10

Malware Config

Signatures

Unsigned PE 1 IoCs

Checks for missing Authenticode signature.

resource
2024-02-12_1bf3fd67fb8bbc13f8a3dd8aaae9b23b_ryuk

Files

2024-02-12_1bf3fd67fb8bbc13f8a3dd8aaae9b23b_ryuk
.exe windows:6 windows x64 arch:x64

faf4d5a54c6024a980a4ba72fabebeb6

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

GetCommandLineW
GetFileType
LocalFree
MultiByteToWideChar
WideCharToMultiByte
WriteConsoleW
SetConsoleCtrlHandler
HeapSize
CreateFileW
RtlCaptureContext
RtlLookupFunctionEntry
RtlVirtualUnwind
UnhandledExceptionFilter
SetUnhandledExceptionFilter
GetCurrentProcess
TerminateProcess
IsProcessorFeaturePresent
IsDebuggerPresent
GetStartupInfoW
GetModuleHandleW
QueryPerformanceCounter
GetCurrentProcessId
GetCurrentThreadId
GetSystemTimeAsFileTime
InitializeSListHead
RtlUnwindEx
GetLastError
SetLastError
EnterCriticalSection
LeaveCriticalSection
DeleteCriticalSection
InitializeCriticalSectionAndSpinCount
TlsAlloc
TlsGetValue
TlsSetValue
TlsFree
FreeLibrary
GetProcAddress
LoadLibraryExW
SetStdHandle
GetTimeZoneInformation
GetStdHandle
GetModuleFileNameA
GetModuleFileNameW
GetModuleHandleExW
ReadFile
ExitProcess
WriteFile
GetCommandLineA
GetACP
HeapFree
HeapAlloc
CompareStringW
LCMapStringW
GetLocaleInfoW
IsValidLocale
GetUserDefaultLCID
EnumSystemLocalesW
HeapReAlloc
FlushFileBuffers
GetConsoleCP
GetConsoleMode
OutputDebugStringW
CloseHandle
WaitForSingleObjectEx
CreateThread
ReadConsoleW
SetFilePointerEx
GetStringTypeW
RaiseException
FindClose
FindFirstFileExA
FindNextFileA
IsValidCodePage
GetOEMCP
GetCPInfo
GetEnvironmentStringsW
FreeEnvironmentStringsW
SetEnvironmentVariableA
GetProcessHeap
SetEndOfFile

shell32

CommandLineToArgvW

Sections

.text
Size: 540KB - Virtual size: 540KB

IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ

.rdata
Size: 195KB - Virtual size: 195KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.data
Size: 4KB - Virtual size: 8KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

.pdata
Size: 26KB - Virtual size: 26KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.gfids
Size: 512B - Virtual size: 216B

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.rsrc
Size: 512B - Virtual size: 480B

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

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

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ

Sharing

General

Malware Config

Signatures

Files

faf4d5a54c6024a980a4ba72fabebeb6

Headers

DLL Characteristics

File Characteristics

Imports

kernel32

shell32

Sections

.text Size: 540KB - Virtual size: 540KB

.rdata Size: 195KB - Virtual size: 195KB

.data Size: 4KB - Virtual size: 8KB

.pdata Size: 26KB - Virtual size: 26KB

.gfids Size: 512B - Virtual size: 216B

.rsrc Size: 512B - Virtual size: 480B

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

.text
Size: 540KB - Virtual size: 540KB

.rdata
Size: 195KB - Virtual size: 195KB

.data
Size: 4KB - Virtual size: 8KB

.pdata
Size: 26KB - Virtual size: 26KB

.gfids
Size: 512B - Virtual size: 216B

.rsrc
Size: 512B - Virtual size: 480B

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