2024-01-28_44b8bdceb5638eddbf227db72cfacdbd_ryuk

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General

Target

2024-01-28_44b8bdceb5638eddbf227db72cfacdbd_ryuk
Size

707KB
MD5

44b8bdceb5638eddbf227db72cfacdbd
SHA1

2a2e8f725441b332da5e74863096f186a8f20f9f
SHA256

d7c9ceab5ffc8a405503ea12bccf679a1735a3385a04868da714c0b8d4a6449d
SHA512

12029bc5675e779fbb9b83ce37fedbfa3964582f41244310d894e26d1cf37baa975446c791d369b8067eab98ed737cdd6f9835d561c9117924c21d3a1b4a461e
SSDEEP

6144:VWRFOEnltY8Kft222909eUfNZ690ootsjOahQJZCIj7hWR6++TNCYl+ptYpfQtKh:8kEng9ftS9099f4Jca6++vKYpoo+QN

Score

3^/10

Malware Config

Signatures

Unsigned PE 1 IoCs

Checks for missing Authenticode signature.

resource
2024-01-28_44b8bdceb5638eddbf227db72cfacdbd_ryuk

Files

2024-01-28_44b8bdceb5638eddbf227db72cfacdbd_ryuk
.exe windows:5 windows x64 arch:x64

1e5c33042bcee8c0e80117c66ec1280b

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

GetModuleFileNameW
DecodePointer
CloseHandle
SetEvent
lstrcmpW
MulDiv
WriteConsoleW
FlushFileBuffers
GetConsoleMode
GetConsoleCP
SetStdHandle
FindFirstFileExW
GetCommandLineW
GetCommandLineA
DeleteCriticalSection
SetEnvironmentVariableA
FreeEnvironmentStringsW
GetEnvironmentStringsW
LCMapStringW
CompareStringW
GetTimeFormatW
GetDateFormatW
EnumSystemLocalesW
GetUserDefaultLCID
IsValidLocale
GetLocaleInfoW
GetOEMCP
IsValidCodePage
GetStringTypeW
GetCPInfo
GetFileType
HeapReAlloc
HeapSize
WriteFile
GetStdHandle
GetModuleHandleExW
ExitProcess
GetACP
LoadLibraryExW
FreeLibrary
InitializeCriticalSectionAndSpinCount
LeaveCriticalSection
EnterCriticalSection
SetLastError
GetLastError
GetCurrentThreadId
RaiseException
GlobalUnlock
GlobalLock
GlobalAlloc
TlsFree
TlsSetValue
TlsGetValue
TlsAlloc
RtlUnwindEx
RtlPcToFileHeader
GetSystemTimeAsFileTime
GetCurrentProcessId
QueryPerformanceCounter
TerminateProcess
IsProcessorFeaturePresent
GetStartupInfoW
SetUnhandledExceptionFilter
UnhandledExceptionFilter
RtlVirtualUnwind
RtlLookupFunctionEntry
RtlCaptureContext
GetModuleHandleW
CreateEventW
WaitForSingleObjectEx
ResetEvent
OutputDebugStringW
IsDebuggerPresent
LoadLibraryExA
VirtualFree
VirtualAlloc
FlushInstructionCache
GetCurrentProcess
InterlockedPushEntrySList
InterlockedPopEntrySList
InitializeSListHead
GetProcessHeap
CreateFileW
FindClose
FindNextFileW
GetFileAttributesW
SetFilePointerEx
DeviceIoControl
GetModuleHandleA
GetProcAddress
AreFileApisANSI
MultiByteToWideChar
WideCharToMultiByte
LocalFree
FormatMessageA
EncodePointer
HeapAlloc
HeapFree
GetTimeZoneInformation

user32

GetClassInfoExW
RegisterClassExW
UnregisterClassW
CallWindowProcW
DefWindowProcW
SendMessageW
RegisterWindowMessageW
CreateWindowExW
IsWindow
IsChild
DestroyWindow
MoveWindow
SetWindowPos
GetDlgItem
CharNextW
SetFocus
GetFocus
SetCapture
ReleaseCapture
CreateAcceleratorTableW
DestroyAcceleratorTable
GetDC
LoadCursorW
GetWindow
GetClassNameW
GetParent
GetDesktopWindow
SetWindowLongPtrW
GetWindowLongPtrW
SetWindowLongW
GetWindowLongW
FillRect
GetSysColor
ScreenToClient
ClientToScreen
GetClientRect
GetWindowTextLengthW
GetWindowTextW
SetWindowTextW
RedrawWindow
InvalidateRgn
InvalidateRect
EndPaint
BeginPaint
ReleaseDC

gdi32

GetStockObject
GetDeviceCaps
DeleteObject
DeleteDC
SelectObject
CreateCompatibleDC
CreateCompatibleBitmap
BitBlt
GetObjectW
CreateSolidBrush

ole32

OleInitialize
OleUninitialize
CoTaskMemFree
CreateStreamOnHGlobal
CoTaskMemAlloc
StringFromGUID2
CLSIDFromProgID
CLSIDFromString
CoCreateInstance
CoGetClassObject
CoInitializeEx
OleLockRunning
CoUninitialize

oleaut32

SysAllocStringLen
SysFreeString
SysStringLen
VariantInit
VariantClear
LoadTypeLi
LoadRegTypeLi
OleCreateFontIndirect
SysAllocString

libhdbinary64

HdBinary_Save

libhdtext64

HdText_Load

libwfw64

Wfw_GetAppDirPath
Wfw_SetAppData
Wfw_GetAppData
Wfw_Run

advapi32

SystemFunction036

Sections

.text
Size: 460KB - Virtual size: 459KB

IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ

.rdata
Size: 194KB - Virtual size: 194KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.data
Size: 18KB - Virtual size: 25KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

.pdata
Size: 25KB - Virtual size: 24KB

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: 2KB - Virtual size: 1KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

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

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ

Sharing

General

Malware Config

Signatures

Files

1e5c33042bcee8c0e80117c66ec1280b

Headers

DLL Characteristics

File Characteristics

Imports

kernel32

user32

gdi32

ole32

oleaut32

libhdbinary64

libhdtext64

libwfw64

advapi32

Sections

.text Size: 460KB - Virtual size: 459KB

.rdata Size: 194KB - Virtual size: 194KB

.data Size: 18KB - Virtual size: 25KB

.pdata Size: 25KB - Virtual size: 24KB

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

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

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

.text
Size: 460KB - Virtual size: 459KB

.rdata
Size: 194KB - Virtual size: 194KB

.data
Size: 18KB - Virtual size: 25KB

.pdata
Size: 25KB - Virtual size: 24KB

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

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

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