2024-04-24_3343a3cf5f55fd0baff7d7fe4760eef5_ryuk

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General

Target

2024-04-24_3343a3cf5f55fd0baff7d7fe4760eef5_ryuk
Size

3.0MB
MD5

3343a3cf5f55fd0baff7d7fe4760eef5
SHA1

711549d2c831a896391f61d3ce6546420c7f4be8
SHA256

652a3d001868bc117f6aace834f727e39a95af922d1426be52416a157ea31205
SHA512

c7aec7945a104c98366a500dd5ba8d968ac9369ea532379b21619819fee21983693b2ab9658de02a4b3da6978072bb529a72a0014d635954c0b66b8f8ec34e1c
SSDEEP

49152:0ydqScUowwqbrWn7ytY/puOm/PGEQuigv3CiTRsxeUfZ4VxxniAUFT:UVIY/kBPGRQRsPfAniAU

Score

3^/10

Malware Config

Signatures

Unsigned PE 1 IoCs

Checks for missing Authenticode signature.

resource
2024-04-24_3343a3cf5f55fd0baff7d7fe4760eef5_ryuk

Files

2024-04-24_3343a3cf5f55fd0baff7d7fe4760eef5_ryuk
.exe windows:6 windows x64 arch:x64

63876a59c7d5eda234e36bbacdf0aaa5

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

CloseHandle
SetEvent
ResetEvent
WaitForSingleObject
CreateEventA
GetSystemTimeAsFileTime
CreateMutexW
ReleaseMutex
CreateEventW
SleepEx
CancelIo
GetCurrentProcess
WaitForMultipleObjects
DuplicateHandle
GetLastError
ReadFile
VerifyVersionInfoA
ReleaseSemaphore
WriteFile
DeviceIoControl
CreateFileA
GetVersionExA
GetOverlappedResult
VerSetConditionMask
GetCurrentProcessId
FreeLibrary
CreateSemaphoreA
SetThreadAffinityMask
GetProcessAffinityMask
TerminateThread
FormatMessageA
WideCharToMultiByte
WaitForSingleObjectEx
GetCurrentThread
GetExitCodeThread
MultiByteToWideChar
EncodePointer
DecodePointer
SetLastError
InitializeCriticalSectionAndSpinCount
GetModuleHandleW
CompareStringW
LCMapStringW
GetLocaleInfoW
GetStringTypeW
GetCPInfo
RtlCaptureContext
RtlLookupFunctionEntry
RtlVirtualUnwind
UnhandledExceptionFilter
SetUnhandledExceptionFilter
TerminateProcess
IsProcessorFeaturePresent
IsDebuggerPresent
GetStartupInfoW
InitializeSListHead
OutputDebugStringW
GetThreadTimes
GetTickCount
GetModuleFileNameW
LoadLibraryExW
InterlockedPopEntrySList
InterlockedPushEntrySList
InterlockedFlushSList
QueryDepthSList
UnregisterWaitEx
RegisterWaitForSingleObject
LoadLibraryW
CreateTimerQueue
SignalObjectAndWait
SwitchToThread
CreateThread
SetThreadPriority
GetThreadPriority
GetLogicalProcessorInformation
CreateTimerQueueTimer
ChangeTimerQueueTimer
DeleteTimerQueueTimer
GetNumaHighestNodeNumber
UnregisterWait
GetVersionExW
VirtualAlloc
VirtualFree
VirtualProtect
RtlPcToFileHeader
RtlUnwindEx
CreateFileW
GetDriveTypeW
GetFileType
PeekNamedPipe
SystemTimeToTzSpecificLocalTime
FileTimeToSystemTime
ExitThread
ResumeThread
GetModuleHandleExW
SetFilePointerEx
GetStdHandle
GetModuleFileNameA
WriteConsoleW
HeapAlloc
HeapFree
HeapReAlloc
ExitProcess
GetCommandLineA
GetCommandLineW
GetACP
GetConsoleCP
GetConsoleMode
ReadConsoleW
IsValidLocale
GetUserDefaultLCID
EnumSystemLocalesW
FlushFileBuffers
GetCurrentDirectoryW
GetFullPathNameW
SetStdHandle
SetEndOfFile
GetProcessHeap
GetTimeZoneInformation
FindClose
FindFirstFileExA
FindNextFileA
IsValidCodePage
GetOEMCP
GetEnvironmentStringsW
FreeEnvironmentStringsW
SetEnvironmentVariableA
HeapSize
LoadLibraryA
GetProcAddress
GetModuleHandleA
GetTempFileNameA
GetTempPathA
TlsFree
TlsSetValue
TlsGetValue
TlsAlloc
DeleteCriticalSection
TryEnterCriticalSection
LeaveCriticalSection
EnterCriticalSection
InitializeCriticalSection
QueryPerformanceFrequency
QueryPerformanceCounter
DeleteFileA
GetTempPathW
DeleteFileW
GetCurrentThreadId
Sleep
FreeLibraryAndExitThread
RaiseException

msvfw32

ICClose
ICSendMessage
ICDecompress
ICOpen

avifil32

AVIFileGetStream
AVIStreamRelease
AVIStreamInfoA
AVIStreamGetFrameOpen
AVIStreamGetFrame
AVIStreamGetFrameClose
AVIFileOpenA
AVIFileRelease
AVIFileInit

avicap32

capGetDriverDescriptionA
capCreateCaptureWindowA

user32

GetClassLongPtrA
LoadCursorA
LoadIconA
MonitorFromRect
GetMonitorInfoA
IsWindow
DestroyWindow
InvalidateRect
EndPaint
BeginPaint
ReleaseDC
GetDC
SetWindowLongPtrA
SetCapture
GetKeyState
SetFocus
EmptyClipboard
SetClipboardData
CloseClipboard
OpenClipboard
SetWindowPos
MoveWindow
ShowWindow
CreateWindowExA
UnregisterClassA
GetWindowLongPtrA
OffsetRect
SubtractRect
ScreenToClient
SetCursor
GetMessageA
GetWindowRect
GetClientRect
GetWindowTextA
ReleaseCapture
RegisterClassA
DefWindowProcA
SendMessageA
PeekMessageA
DispatchMessageA
TranslateMessage

gdi32

GetStockObject
SelectObject
StretchBlt
SetStretchBltMode
GetCurrentObject
SetDIBColorTable
GetObjectA
GdiFlush
CreateDIBSection
FillRgn
DeleteObject
DeleteDC
CreateRectRgn
CreateCompatibleDC
CreateCompatibleBitmap
BitBlt
CombineRgn

ole32

CoTaskMemFree
CoCreateInstance
CoInitialize
CoUninitialize

oleaut32

OleCreatePropertyFrame
VariantClear
VariantInit

comdlg32

GetSaveFileNameA

advapi32

RegQueryValueExA
RegOpenKeyExA
RegEnumKeyExA
RegDeleteKeyA
RegCreateKeyExA
RegCloseKey
RegSetValueExA

Sections

.text
Size: 2.0MB - Virtual size: 2.0MB

IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ

.rdata
Size: 889KB - Virtual size: 888KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.data
Size: 34KB - Virtual size: 693KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

.pdata
Size: 95KB - Virtual size: 94KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

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

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.tls
Size: 512B - Virtual size: 9B

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

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

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.reloc
Size: 10KB - Virtual size: 10KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ

Sharing

General

Malware Config

Signatures

Files

63876a59c7d5eda234e36bbacdf0aaa5

Headers

DLL Characteristics

File Characteristics

Imports

kernel32

msvfw32

avifil32

avicap32

user32

gdi32

ole32

oleaut32

comdlg32

advapi32

Sections

.text Size: 2.0MB - Virtual size: 2.0MB

.rdata Size: 889KB - Virtual size: 888KB

.data Size: 34KB - Virtual size: 693KB

.pdata Size: 95KB - Virtual size: 94KB

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

.tls Size: 512B - Virtual size: 9B

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

.reloc Size: 10KB - Virtual size: 10KB

.text
Size: 2.0MB - Virtual size: 2.0MB

.rdata
Size: 889KB - Virtual size: 888KB

.data
Size: 34KB - Virtual size: 693KB

.pdata
Size: 95KB - Virtual size: 94KB

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

.tls
Size: 512B - Virtual size: 9B

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

.reloc
Size: 10KB - Virtual size: 10KB