2024-01-11_00900f8758d3be1be2c4192a592e5bb5_ryuk

Sharing

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General

Target

2024-01-11_00900f8758d3be1be2c4192a592e5bb5_ryuk
Size

97KB
MD5

00900f8758d3be1be2c4192a592e5bb5
SHA1

b279b5aec53872ba9336452520b35159857e13b2
SHA256

9f4c35b06828f478db8f3d77d6b034796d58d66b3c0ab4fcbf968c156a826137
SHA512

82901c82ba7934c75a11e35c68c5a369b9a05f557052647aae3197be266f4432a3ff182b295d55a686b3a5de00242d63daaa0a4f762d4a3a715158a7dd476b99
SSDEEP

1536:84KHBueCQ5/rBCT96GguXjgFJ+Iymg6bNsWWdc9dlUzS7nQm6y:JKhueNIT9nX8FJ+4BbsUmm7Q

Score

3^/10

Malware Config

Signatures

Unsigned PE 1 IoCs

Checks for missing Authenticode signature.

resource
2024-01-11_00900f8758d3be1be2c4192a592e5bb5_ryuk

Files

2024-01-11_00900f8758d3be1be2c4192a592e5bb5_ryuk
.exe windows:5 windows x64 arch:x64

8979a638b7eda240109b1921f1d8451f

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

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

user32

ReleaseDC
InvalidateRect
GetDesktopWindow
GetWindowDC
GetSystemMetrics
GetWindowRect
GetDC
MessageBoxW

gdi32

CreateEllipticRgn
BitBlt
SelectObject
CreateDIBSection
CreateCompatibleDC
StretchBlt
CreateHatchBrush
DeleteDC
TextOutW
Rectangle
SelectClipRgn
Ellipse
DeleteObject
CreateSolidBrush

winmm

waveOutOpen
waveOutClose
waveOutUnprepareHeader
waveOutWrite
waveOutPrepareHeader

Sections

.text
Size: 46KB - Virtual size: 46KB

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: 6KB

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: 160B

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.rsrc
Size: 5KB - Virtual size: 4KB

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

8979a638b7eda240109b1921f1d8451f

Headers

DLL Characteristics

File Characteristics

Imports

kernel32

user32

gdi32

winmm

Sections

.text Size: 46KB - Virtual size: 46KB

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

.data Size: 2KB - Virtual size: 6KB

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

.gfids Size: 512B - Virtual size: 160B

.rsrc Size: 5KB - Virtual size: 4KB

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

.text
Size: 46KB - Virtual size: 46KB

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

.data
Size: 2KB - Virtual size: 6KB

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

.gfids
Size: 512B - Virtual size: 160B

.rsrc
Size: 5KB - Virtual size: 4KB

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