2024-03-06_55b781fb0219658ab010e61e8f3c643d_ryuk

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General

Target

2024-03-06_55b781fb0219658ab010e61e8f3c643d_ryuk
Size

4.9MB
MD5

55b781fb0219658ab010e61e8f3c643d
SHA1

42c2bf83ea80dfbcbe1e4ce10747af748129310a
SHA256

ca242dc21f66d8a2fafa29657c2ea6d3fbdc00b939f6f6797685481df8eeb4eb
SHA512

d034c919e3f979eb4af5713affdd9d8f50916cb5b02c79e3d2e281688f6c21b6e9a682e81fb0d18da439b99c877b3ca6de6a02c8e7b5f474a6bd7e73ba6d284f
SSDEEP

49152:gOmPA/7+W7lWEVW4ENecudmjSqI4gBQo+19Aed9QhSt+Zt+M2QHGCZOQQXEbDZB2:g9POaWUsdRzBQP6F2IKgZr47FTgXc

Score

3^/10

Malware Config

Signatures

Unsigned PE 1 IoCs

Checks for missing Authenticode signature.

resource
2024-03-06_55b781fb0219658ab010e61e8f3c643d_ryuk

Files

2024-03-06_55b781fb0219658ab010e61e8f3c643d_ryuk
.exe windows:6 windows x64 arch:x64

2a37d3828eb7ba7a8684d9f6d6404c72

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

AcquireSRWLockExclusive
CloseHandle
CompareStringEx
CompareStringW
CreateEventW
CreateFileW
CreateThread
DecodePointer
DeleteCriticalSection
EncodePointer
EnterCriticalSection
EnumSystemLocalesW
ExitProcess
ExitThread
FindClose
FindFirstFileExW
FindNextFileW
FlushFileBuffers
FormatMessageW
FreeEnvironmentStringsW
FreeLibrary
FreeLibraryAndExitThread
GetACP
GetCPInfo
GetCommandLineA
GetCommandLineW
GetConsoleMode
GetConsoleOutputCP
GetCurrentProcess
GetCurrentProcessId
GetCurrentThreadId
GetDateFormatW
GetEnvironmentStringsW
GetFileSize
GetFileType
GetLastError
GetLocaleInfoEx
GetLocaleInfoW
GetModuleFileNameW
GetModuleHandleExW
GetModuleHandleW
GetOEMCP
GetProcAddress
GetProcessHeap
GetStartupInfoW
GetStdHandle
GetStringTypeW
GetSystemFirmwareTable
GetSystemTimeAsFileTime
GetTimeFormatW
GetTimeZoneInformation
GetUserDefaultLCID
GlobalAlloc
GlobalFree
GlobalLock
GlobalUnlock
HeapAlloc
HeapFree
HeapReAlloc
HeapSize
InitializeCriticalSectionAndSpinCount
InitializeCriticalSectionEx
InitializeSListHead
InitializeSRWLock
IsDebuggerPresent
IsProcessorFeaturePresent
IsValidCodePage
IsValidLocale
LCMapStringEx
LCMapStringW
LeaveCriticalSection
LoadLibraryExW
LocalFree
MultiByteToWideChar
QueryPerformanceCounter
QueryPerformanceFrequency
RaiseException
ReadFile
ReleaseSRWLockExclusive
ResetEvent
RtlCaptureContext
RtlLookupFunctionEntry
RtlPcToFileHeader
RtlUnwind
RtlUnwindEx
RtlVirtualUnwind
SetEnvironmentVariableW
SetEvent
SetFilePointerEx
SetLastError
SetStdHandle
SetUnhandledExceptionFilter
TerminateProcess
TlsAlloc
TlsFree
TlsGetValue
TlsSetValue
TryAcquireSRWLockExclusive
UnhandledExceptionFilter
WaitForSingleObjectEx
WideCharToMultiByte
WriteConsoleW
WriteFile

user32

CloseClipboard
CreateWindowExW
DefWindowProcW
DispatchMessageW
EmptyClipboard
GetCaretBlinkTime
GetClientRect
GetClipboardData
GetDesktopWindow
GetKeyState
GetMessageW
GetSystemMetrics
GetWindowInfo
GetWindowLongPtrW
GetWindowRect
IsZoomed
LoadCursorW
LoadIconW
MessageBoxW
OpenClipboard
PostMessageA
PostQuitMessage
RegisterClassW
ScreenToClient
SetClassLongPtrW
SetClipboardData
SetWindowLongPtrW
SetWindowPos
ShowWindow
TranslateMessage

advapi32

RegCloseKey
RegOpenKeyW
RegSetValueExW

ole32

CoTaskMemFree

shell32

CommandLineToArgvW

gdi32

CreateSolidBrush

ntdll

RtlNtStatusToDosError

ws2_32

ioctlsocket

dwrite

DWriteCreateFactory

d2d1

ord1
ord2

Sections

.UGMZ
Size: 725KB - Virtual size: 724KB

IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ

Lqhpa
Size: 129KB - Virtual size: 129KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

RrGQha
Size: 19KB - Virtual size: 18KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

iPkDeax0
Size: 512B - Virtual size: 400B

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

.YAQFsv1
Size: 1KB - Virtual size: 1KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

GtFEE
Size: 512B - Virtual size: 88B

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

.text
Size: 4.0MB - Virtual size: 4.0MB

IMAGE_SCN_CNT_CODE
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ

zYvgoc
Size: 5KB - Virtual size: 5KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

tQABW
Size: 512B - Virtual size: 440B

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

Sharing

General

Malware Config

Signatures

Files

2a37d3828eb7ba7a8684d9f6d6404c72

Headers

DLL Characteristics

File Characteristics

Imports

kernel32

user32

advapi32

ole32

shell32

gdi32

ntdll

ws2_32

dwrite

d2d1

Sections

.UGMZ Size: 725KB - Virtual size: 724KB

Lqhpa Size: 129KB - Virtual size: 129KB

RrGQha Size: 19KB - Virtual size: 18KB

iPkDeax0 Size: 512B - Virtual size: 400B

.YAQFsv1 Size: 1KB - Virtual size: 1KB

GtFEE Size: 512B - Virtual size: 88B

.text Size: 4.0MB - Virtual size: 4.0MB

zYvgoc Size: 5KB - Virtual size: 5KB

tQABW Size: 512B - Virtual size: 440B

.UGMZ
Size: 725KB - Virtual size: 724KB

Lqhpa
Size: 129KB - Virtual size: 129KB

RrGQha
Size: 19KB - Virtual size: 18KB

iPkDeax0
Size: 512B - Virtual size: 400B

.YAQFsv1
Size: 1KB - Virtual size: 1KB

GtFEE
Size: 512B - Virtual size: 88B

.text
Size: 4.0MB - Virtual size: 4.0MB

zYvgoc
Size: 5KB - Virtual size: 5KB

tQABW
Size: 512B - Virtual size: 440B