winvnc[.]x64[.]dll[.]1

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General

Target

winvnc.x64.dll.1
Size

366KB
MD5

bc9fd6c5621c3fa5a16489db19746112
SHA1

6cddeac906b3b691c611178b577a9379cfeaa401
SHA256

13feaa32e4b03ede8799e5bee6f8d54c3af715a6488ad32f6287d8f504c7078b
SHA512

52278e2ed10e086cef0fc9ce459bdefd2c7cc9e7f092692365766c19eee9757301d857a3610308f97d76fc4658f37c03e0b0d09d63f93cb846c310e599c2eaa3
SSDEEP

6144:Vsj5MHZ/yacp9dK/WT8W/WUuLdrX64ajx0HLC1UsrTAhwwU8qc2kPoV0jp7:VW5Mwacp9dKeIdezlMCusJzV0

Score

3^/10

Malware Config

Signatures

Unsigned PE 1 IoCs

Checks for missing Authenticode signature.

resource
winvnc.x64.dll.1

Files

winvnc.x64.dll.1
.dll windows:5 windows x64

8d947d8266d1e96ff10ab0c505eb32cf

Headers

DLL Characteristics

IMAGE_DLLCHARACTERISTICS_HIGH_ENTROPY_VA
IMAGE_DLLCHARACTERISTICS_DYNAMIC_BASE
IMAGE_DLLCHARACTERISTICS_NX_COMPAT

File Characteristics

IMAGE_FILE_EXECUTABLE_IMAGE
IMAGE_FILE_LARGE_ADDRESS_AWARE
IMAGE_FILE_DLL

Imports

ws2_32

recv
bind
closesocket
htons
WSASocketA
WSAGetLastError
setsockopt
send
select
accept
__WSAFDIsSet
WSADuplicateSocketA
WSAStartup
socket
listen
inet_addr

kernel32

LeaveCriticalSection
DeleteCriticalSection
ReleaseSemaphore
Sleep
CloseHandle
DuplicateHandle
GetSystemTime
TlsAlloc
TlsGetValue
TlsSetValue
CreateSemaphoreA
UnmapViewOfFile
SetErrorMode
WriteFile
FindClose
SetFileTime
GetLogicalDriveStringsA
CreateDirectoryA
CreateFileA
DeleteFileA
FindFirstFileA
FindNextFileA
GetComputerNameA
GlobalAlloc
GlobalLock
GlobalUnlock
GlobalDeleteAtom
SystemTimeToFileTime
GlobalAddAtomA
GetVersionExA
SetEvent
GetConsoleCP
FlushFileBuffers
HeapSize
GetProcessHeap
GetFileType
GetCPInfo
GetOEMCP
EnterCriticalSection
IsValidCodePage
GetModuleFileNameW
GetStdHandle
GetModuleHandleW
GetStartupInfoW
TlsFree
TerminateProcess
InitializeCriticalSectionAndSpinCount
SetUnhandledExceptionFilter
UnhandledExceptionFilter
RtlVirtualUnwind
RtlCaptureContext
IsProcessorFeaturePresent
IsDebuggerPresent
SetLastError
GetCommandLineA
RaiseException
RtlPcToFileHeader
LoadLibraryExW
CreateThread
HeapAlloc
HeapFree
GetSystemTimeAsFileTime
WideCharToMultiByte
MultiByteToWideChar
GetModuleHandleExW
ExitProcess
DecodePointer
GetConsoleMode
EncodePointer
RtlUnwindEx
RtlLookupFunctionEntry
ReadFile
ReadConsoleW
GetModuleFileNameA
QueryPerformanceCounter
InitializeCriticalSection
ResumeThread
GetLastError
SetThreadPriority
GetCurrentThreadId
GetCurrentThread
GetCurrentProcess
LoadLibraryA
CreateEventA
WaitForSingleObject
ExitThread
GetCurrentProcessId
GetProcAddress
FreeLibrary
GetEnvironmentStringsW
FreeEnvironmentStringsW
OutputDebugStringW
HeapReAlloc
CompareStringW
LCMapStringW
GetStringTypeW
SetStdHandle
SetFilePointerEx
WriteConsoleW
SetEnvironmentVariableA
GetACP
CreateFileW

user32

GetUserObjectInformationA
MessageBeep
ExitWindowsEx
MapVirtualKeyA
VkKeyScanA
GetAsyncKeyState
SystemParametersInfoA
ChangeDisplaySettingsA
DrawIconEx
LoadCursorA
GetClassNameA
EnumWindows
FindWindowA
SetWindowLongPtrA
GetWindowLongPtrA
GetWindowLongA
EqualRect
WindowFromPoint
RemovePropA
GetPropA
SetPropA
GetForegroundWindow
SetTimer
EmptyClipboard
GetClipboardData
SetClipboardData
ChangeClipboardChain
SetClipboardViewer
GetClipboardOwner
CloseClipboard
OpenClipboard
IsWindowVisible
DestroyWindow
CreateWindowExA
RegisterClassExA
PostQuitMessage
DefWindowProcA
WaitMessage
PostMessageA
SendMessageA
PeekMessageA
DispatchMessageA
RegisterWindowMessageA
EnumDesktopWindows
OpenDesktopA
GetDesktopWindow
IsRectEmpty
IntersectRect
GetCursorPos
GetWindowRect
GetSystemMetrics
mouse_event
keybd_event
GetKeyboardState
EnumDisplaySettingsA
GetThreadDesktop
CloseDesktop
SetThreadDesktop
ReleaseDC
GetDC
SetRect
GetIconInfo
GetProcessWindowStation
OpenInputDesktop
KillTimer

gdi32

GetObjectA
GetBitmapBits
DeleteObject
GetStockObject
RealizePalette
SelectObject
GetSystemPaletteEntries
CreateDIBSection
GdiFlush
CombineRgn
CreateRectRgn
CreateRectRgnIndirect
GetRegionData
CreateDCA
DeleteDC
ExtEscape
BitBlt
CreateCompatibleBitmap
CreateCompatibleDC
CreatePalette
SelectPalette
GetDIBits
GetDeviceCaps

advapi32

GetUserNameA
RevertToSelf
RegSetValueExA
RegDeleteValueA
RegCreateKeyA
RegCloseKey
ImpersonateLoggedOnUser

Exports

Exports

?ReflectiveLoader@@YA_KPEAX@Z

Sections

.text
Size: 246KB - Virtual size: 245KB

IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ

.rdata
Size: 84KB - Virtual size: 84KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.data
Size: 15KB - Virtual size: 27KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

.pdata
Size: 15KB - Virtual size: 15KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

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

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ

Sharing

General

Malware Config

Signatures

Files

8d947d8266d1e96ff10ab0c505eb32cf

Headers

DLL Characteristics

File Characteristics

Imports

ws2_32

kernel32

user32

gdi32

advapi32

Exports

Exports

Sections

.text Size: 246KB - Virtual size: 245KB

.rdata Size: 84KB - Virtual size: 84KB

.data Size: 15KB - Virtual size: 27KB

.pdata Size: 15KB - Virtual size: 15KB

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

.text
Size: 246KB - Virtual size: 245KB

.rdata
Size: 84KB - Virtual size: 84KB

.data
Size: 15KB - Virtual size: 27KB

.pdata
Size: 15KB - Virtual size: 15KB

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