2024-04-27_36aa7e8047d8585bd06aaeba93718447_ryuk

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General

Target

2024-04-27_36aa7e8047d8585bd06aaeba93718447_ryuk
Size

4.7MB
MD5

36aa7e8047d8585bd06aaeba93718447
SHA1

3dc99cf815883a52931152753b7c8182b0c2beae
SHA256

03c88af007502258ed2374563bb76c9bf0558da2cc48dccec1a621710b5d0624
SHA512

8b2730b908f44e8a18d5bc04780ce1dd1290be4c938cfe653215d7e5b3ef1ac4581dea3c0eb1cf2cd7c8cad5ad5ce95e2dfe25a096c98d968c7f2847d3a92764
SSDEEP

49152:ER2eZFoAF4dmDcWX16Fj6V7+kCqb+MLVNcsL33Br63IvFh81MrS4dlQKjv70udd5:EZZWA2Ju16k75tLfDx9es667lJgy

Score

3^/10

Malware Config

Signatures

Unsigned PE 1 IoCs

Checks for missing Authenticode signature.

resource
2024-04-27_36aa7e8047d8585bd06aaeba93718447_ryuk

Files

2024-04-27_36aa7e8047d8585bd06aaeba93718447_ryuk
.exe windows:6 windows x64 arch:x64

b6efe1bd5a2549df879149885a2d34d8

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
RtlUnwindEx
RtlVirtualUnwind
SetEnvironmentVariableW
SetEvent
SetFilePointerEx
SetLastError
SetStdHandle
SetUnhandledExceptionFilter
TerminateProcess
TlsAlloc
TlsFree
TlsGetValue
TlsSetValue
TryEnterCriticalSection
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

KdoiR
Size: 8KB - Virtual size: 7KB

IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

.ypebs
Size: 6KB - Virtual size: 6KB

IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

xCDft
Size: 705KB - Virtual size: 705KB

IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ

jJPeZ
Size: 130KB - Virtual size: 129KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

GXaita
Size: 19KB - Virtual size: 19KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

dJawLbx0
Size: 512B - Virtual size: 392B

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

cPFPhax1
Size: 1KB - Virtual size: 1KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

.xmLy
Size: 512B - Virtual size: 336B

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

.text
Size: 3.8MB - Virtual size: 3.8MB

IMAGE_SCN_CNT_CODE
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ

.tWwvc
Size: 5KB - Virtual size: 5KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

.vTQDHG
Size: 512B - Virtual size: 496B

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

.cMsBfT
Size: 4KB - Virtual size: 3KB

IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

Sharing

General

Malware Config

Signatures

Files

b6efe1bd5a2549df879149885a2d34d8

Headers

DLL Characteristics

File Characteristics

Imports

kernel32

user32

advapi32

ole32

shell32

gdi32

ntdll

ws2_32

dwrite

d2d1

Sections

KdoiR Size: 8KB - Virtual size: 7KB

.ypebs Size: 6KB - Virtual size: 6KB

xCDft Size: 705KB - Virtual size: 705KB

jJPeZ Size: 130KB - Virtual size: 129KB

GXaita Size: 19KB - Virtual size: 19KB

dJawLbx0 Size: 512B - Virtual size: 392B

cPFPhax1 Size: 1KB - Virtual size: 1KB

.xmLy Size: 512B - Virtual size: 336B

.text Size: 3.8MB - Virtual size: 3.8MB

.tWwvc Size: 5KB - Virtual size: 5KB

.vTQDHG Size: 512B - Virtual size: 496B

.cMsBfT Size: 4KB - Virtual size: 3KB

KdoiR
Size: 8KB - Virtual size: 7KB

.ypebs
Size: 6KB - Virtual size: 6KB

xCDft
Size: 705KB - Virtual size: 705KB

jJPeZ
Size: 130KB - Virtual size: 129KB

GXaita
Size: 19KB - Virtual size: 19KB

dJawLbx0
Size: 512B - Virtual size: 392B

cPFPhax1
Size: 1KB - Virtual size: 1KB

.xmLy
Size: 512B - Virtual size: 336B

.text
Size: 3.8MB - Virtual size: 3.8MB

.tWwvc
Size: 5KB - Virtual size: 5KB

.vTQDHG
Size: 512B - Virtual size: 496B

.cMsBfT
Size: 4KB - Virtual size: 3KB