server[.]dll | Triage™

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General

Target
server.dll
Size 1.4MB
Sample260816-sh1fjsdm21
SHA256 8ae68cc5c858a8a0645bc0a8874f86c422287a4cab9f9aa0e3a38b5cbc414dd9
MD5 1289d1fe6c3a6948f42cd1f50f1d88f9
SHA1 ce2a3e27534fa3441def3d12e1e80a71f4cdf0c2
SHA512 6ee3855f54baefd3de682562b7be9be5d093ebc4d06501fa92f9bc14ab4082507e7e5c630d7d93e031b7c946373d3a5425f3b0dd614e88f0b3ee6c76f14ae515
SSDEEP 24576:aGuDman1gRHVmq8/2RVQUBfRh2/8WXioFpc4B8AU7f/2yzCncZZD15U:DuDVn1KV0/2LQ8W/89oF5fi/2yen
TLSH
T199659E46A3F401A8D1B7C278C6579A1FD772780503609BDF2BE44B6A6F23BE05B3A711
MD5 SHA1 SHA512 SSDEEP TLSH

Score

3^/10

Malware Config

Signatures

Unsigned PE 1 IoCs

Checks for missing Authenticode signature.

resource
server.dll

File Explorer

server.dll

.dll 1.4MB

server.dll

IMPHASH 47387ae051b3e95cc114fd951fbd3c9d
SHA256 8ae68cc5c858a8a0645bc0a8874f86c422287a4cab9f9aa0e3a38b5cbc414dd9
MD5 1289d1fe6c3a6948f42cd1f50f1d88f9
SHA1 ce2a3e27534fa3441def3d12e1e80a71f4cdf0c2
SHA512 6ee3855f54baefd3de682562b7be9be5d093ebc4d06501fa92f9bc14ab4082507e7e5c630d7d93e031b7c946373d3a5425f3b0dd614e88f0b3ee6c76f14ae515
SSDEEP 24576:aGuDman1gRHVmq8/2RVQUBfRh2/8WXioFpc4B8AU7f/2yzCncZZD15U:DuDVn1KV0/2LQ8W/89oF5fi/2yen
TLSH
T199659E46A3F401A8D1B7C278C6579A1FD772780503609BDF2BE44B6A6F23BE05B3A711
MD5 SHA1 SHA512 SSDEEP TLSH

regsvr32 windows:6 windows x64 arch:x64

Unsigned PE

Checks for missing Authenticode signature.

Minor OS version

Major OS version

Entry point

765836

Magic Number

523

Subsystem

IMAGE_SUBSYSTEM_WINDOWS_GUI

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

PDB paths

user32

LoadCursorA ScreenToClient ClientToScreen SetCursor SetCursorPos GetClientRect GetForegroundWindow IsWindowUnicode GetCapture GetKeyState GetMessageExtraInfo TrackMouseEvent GetKeyboardLayout EmptyClipboard SetClipboardData GetDesktopWindow GetCursorPos GetWindowRect ReleaseDC GetDC UpdateWindow GetSystemMetrics ReleaseCapture SetCapture GetAsyncKeyState GetClipboardData CloseClipboard OpenClipboard SetWindowPos SetLayeredWindowAttributes ShowWindow DestroyWindow CreateWindowExW RegisterClassExW UnregisterClassW PostQuitMessage DefWindowProcA PeekMessageA DispatchMessageA TranslateMessage

kernel32

GetModuleHandleExW FreeLibraryAndExitThread ExitThread CreateThread CreateProcessW DuplicateHandle LoadLibraryExW TlsFree TlsSetValue TlsGetValue TlsAlloc InitializeCriticalSectionAndSpinCount RtlUnwind SetLastError InterlockedFlushSList RtlUnwindEx RaiseException RtlPcToFileHeader InitializeSListHead GetCurrentProcessId GetStartupInfoW IsProcessorFeaturePresent SetUnhandledExceptionFilter UnhandledExceptionFilter CreateFileW GetStdHandle SetEnvironmentVariableA CreateFileA IsDebuggerPresent CheckRemoteDebuggerPresent Beep CloseHandle GetLastError SetErrorMode WaitForSingleObject CreateMutexA CreateEventA Sleep GetCurrentProcess ExitProcess TerminateProcess GetCurrentThread GetThreadContext GlobalMemoryStatusEx VirtualAlloc VirtualProtect DisableThreadLibraryCalls FreeLibrary GetModuleHandleA GetFileType LoadLibraryA GlobalAlloc GlobalUnlock GlobalLock GlobalFree SetConsoleTextAttribute CreateToolhelp32Snapshot Process32First Process32Next MultiByteToWideChar WideCharToMultiByte QueryPerformanceCounter QueryPerformanceFrequency GetLocaleInfoA GetFileSizeEx ReadFile HeapAlloc HeapReAlloc HeapFree GetProcessHeap MapViewOfFile UnmapViewOfFile CreateFileMappingA RtlVirtualUnwind RtlLookupFunctionEntry RtlCaptureContext GetModuleFileNameW WriteConsoleW FlsAlloc FlsGetValue FlsSetValue FlsFree HeapSize SetStdHandle SetEnvironmentVariableW FreeEnvironmentStringsW GetEnvironmentStringsW GetCommandLineW GetCommandLineA GetOEMCP GetACP IsValidCodePage FindNextFileW FindFirstFileExW FindClose OutputDebugStringW CreatePipe GetFileAttributesExW GetExitCodeProcess ReadConsoleW SetFilePointerEx GetCPInfo GetConsoleMode GetConsoleOutputCP WriteFile FlushFileBuffers CompareStringW LCMapStringW GetLocaleInfoW GetUserDefaultLCID IsValidLocale GetProcAddress SetEndOfFile GetCurrentThreadId EnterCriticalSection LeaveCriticalSection InitializeCriticalSectionEx DeleteCriticalSection ReleaseSRWLockExclusive AcquireSRWLockExclusive TryAcquireSRWLockExclusive WakeAllConditionVariable SleepConditionVariableSRW EncodePointer DecodePointer LCMapStringEx GetSystemTimeAsFileTime GetModuleHandleW GetStringTypeW EnumSystemLocalesW

shell32

ShellExecuteA

gdi32

CreateCompatibleBitmap CreateCompatibleDC DeleteDC DeleteObject BitBlt SelectObject

gdiplus

GdipGetImageWidth GdipGetImageEncoders GdipGetImageEncodersSize GdipBitmapUnlockBits GdipBitmapLockBits GdipAlloc GdipCreateBitmapFromStream GdipGetImageHeight GdipCreateBitmapFromHBITMAP GdipSaveImageToStream GdipDisposeImage GdipCloneImage GdiplusShutdown GdiplusStartup GdipFree

ole32

CreateStreamOnHGlobal

d3d11

D3D11CreateDeviceAndSwapChain

dwmapi

DwmExtendFrameIntoClientArea

imm32

ImmReleaseContext ImmSetCompositionWindow ImmSetCandidateWindow ImmGetContext

d3dcompiler_47

D3DCompile

Name

.text

Size

952KB

Virtual Size

952KB

Characteristics

IMAGE_SCN_CNT_CODE IMAGE_SCN_MEM_EXECUTE IMAGE_SCN_MEM_READ

Name

.rdata

Size

376KB

Virtual Size

375KB

Characteristics

IMAGE_SCN_CNT_INITIALIZED_DATA IMAGE_SCN_MEM_READ

Name

.data

Size

5KB

Virtual Size

12KB

Characteristics

IMAGE_SCN_CNT_INITIALIZED_DATA IMAGE_SCN_MEM_READ IMAGE_SCN_MEM_WRITE

Name

.pdata

Size

47KB

Virtual Size

47KB

Characteristics

IMAGE_SCN_CNT_INITIALIZED_DATA IMAGE_SCN_MEM_READ

Name

.fptable

Size

512B

Virtual Size

256B

Characteristics

IMAGE_SCN_CNT_INITIALIZED_DATA IMAGE_SCN_MEM_READ IMAGE_SCN_MEM_WRITE

Name

.reloc

Size

6KB

Virtual Size

5KB

Characteristics

IMAGE_SCN_CNT_INITIALIZED_DATA IMAGE_SCN_MEM_DISCARDABLE IMAGE_SCN_MEM_READ

Sharing

General

Malware Config

Signatures

File Explorer

server.dll

user32

kernel32

shell32

gdi32

gdiplus

ole32

d3d11

dwmapi

imm32

d3dcompiler_47

generic