r77 | deb9beb3b319055902153eb0dbc617bb6d84c4c9f5b8eac5340305cd3e94cfac

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General

Target
deb9beb3b319055902153eb0dbc617bb6d84c4c9f5b8eac5340305cd3e94cfac
Size 4.8MB
Sample240529-al4y2abd84
SHA256 deb9beb3b319055902153eb0dbc617bb6d84c4c9f5b8eac5340305cd3e94cfac
MD5 6ee690bc6f3432547114eb794e06f0dc
SHA1 7f033655b4e8282ae31b55644c61de7b2c4d091e
SHA512 72de1d19c2f7027fa3b31a7bda0571748cc1d8b40fc55effcfaaf1a01a4c44969be868753e8ed091f9bfd9eafd41bed11a5f31b815605f75ee6d39965fde0a6b
SSDEEP 98304:dws2ANnKXOaeOgmhjp5x1BTukBhMy/R+GlkuB8//D5N91:HKXbeO7X5x1pd7MK+GXB8/75X1
MD5 SHA1 SHA512 SSDEEP

Score

10^/10

r77

Malware Config

Signatures

R77 family
r77

r77 rootkit payload 1 IoCs

Detects the payload of the r77 rootkit.

resource	yara_rule
sample	r77_payload

Unsigned PE 1 IoCs

Checks for missing Authenticode signature.

resource
deb9beb3b319055902153eb0dbc617bb6d84c4c9f5b8eac5340305cd3e94cfac

File Explorer

deb9beb3b319055902153eb0dbc617bb6d84c4c9f5b8eac5340305cd3e94cfac

.exe 4.8MB

deb9beb3b319055902153eb0dbc617bb6d84c4c9f5b8eac5340305cd3e94cfac

IMPHASH e5190c5e183d406cdd77111381b80c0e
SHA256 deb9beb3b319055902153eb0dbc617bb6d84c4c9f5b8eac5340305cd3e94cfac
MD5 6ee690bc6f3432547114eb794e06f0dc
SHA1 7f033655b4e8282ae31b55644c61de7b2c4d091e
SHA512 72de1d19c2f7027fa3b31a7bda0571748cc1d8b40fc55effcfaaf1a01a4c44969be868753e8ed091f9bfd9eafd41bed11a5f31b815605f75ee6d39965fde0a6b
SSDEEP 98304:dws2ANnKXOaeOgmhjp5x1BTukBhMy/R+GlkuB8//D5N91:HKXbeO7X5x1pd7MK+GXB8/75X1
MD5 SHA1 SHA512 SSDEEP

windows:4 windows x86 arch:x86

r77 rootkit payload

Detects the payload of the r77 rootkit.
Unsigned PE

Checks for missing Authenticode signature.

Minor OS version

Major OS version

Entry point

396709

Magic Number

267

Subsystem

IMAGE_SUBSYSTEM_WINDOWS_GUI

DLL Characteristics

File Characteristics

IMAGE_FILE_RELOCS_STRIPPED IMAGE_FILE_EXECUTABLE_IMAGE IMAGE_FILE_LINE_NUMS_STRIPPED IMAGE_FILE_LOCAL_SYMS_STRIPPED IMAGE_FILE_32BIT_MACHINE

PDB paths

winmm

midiStreamOut midiOutPrepareHeader waveOutWrite waveOutPause waveOutReset waveOutClose waveOutGetNumDevs waveOutOpen midiOutUnprepareHeader midiStreamOpen midiStreamProperty midiStreamStop midiOutReset midiStreamClose midiStreamRestart waveOutUnprepareHeader waveOutPrepareHeader

ws2_32

WSAAsyncSelect closesocket WSACleanup inet_ntoa recvfrom ioctlsocket recv accept getpeername

kernel32

EnumResourceNamesA LoadLibraryExA SetLastError GetTimeZoneInformation GetVersion UnhandledExceptionFilter GetACP HeapSize OpenProcess RaiseException GetLocalTime GetSystemTime RtlUnwind GetStartupInfoA GetOEMCP GetCPInfo GetProcessVersion SetErrorMode GlobalFlags GetCurrentThread GetFileTime TlsGetValue LocalReAlloc TlsSetValue TlsFree GlobalHandle TlsAlloc LocalAlloc lstrcmpA GlobalGetAtomNameA GlobalAddAtomA GlobalFindAtomA GlobalDeleteAtom lstrcmpiA SetEndOfFile UnlockFile LockFile FlushFileBuffers DuplicateHandle lstrcpynA FileTimeToLocalFileTime FileTimeToSystemTime LocalFree InterlockedDecrement InterlockedIncrement TerminateProcess GetFileSize SetFilePointer CreateToolhelp32Snapshot Process32First Process32Next GetCurrentProcess GetWindowsDirectoryA GetSystemDirectoryA CreateSemaphoreA ResumeThread ReleaseSemaphore EnterCriticalSection LeaveCriticalSection GetProfileStringA WriteFile WaitForMultipleObjects CreateFileA SetEvent FindResourceA LoadResource LockResource SizeofResource ReadFile GetModuleFileNameA GetCurrentThreadId ExitProcess GlobalSize GlobalFree DeleteCriticalSection InitializeCriticalSection lstrcatA lstrlenA WinExec lstrcpyA InterlockedExchange FindNextFileA GlobalReAlloc HeapFree HeapReAlloc GetProcessHeap HeapAlloc MultiByteToWideChar WideCharToMultiByte GetFullPathNameA FreeLibrary LoadLibraryA GetLastError GetVersionExA WritePrivateProfileStringA CreateThread CreateEventA Sleep GlobalAlloc GlobalLock GlobalUnlock GetTempPathA FindFirstFileA FindClose GetFileAttributesA DeleteFileA CopyFileA SetCurrentDirectoryA GetVolumeInformationA GetModuleHandleA GetProcAddress MulDiv GetCommandLineA GetTickCount CreateProcessA WaitForSingleObject CloseHandle FreeEnvironmentStringsA FreeEnvironmentStringsW GetEnvironmentStrings GetEnvironmentStringsW SetHandleCount GetStdHandle GetFileType GetEnvironmentVariableA HeapDestroy HeapCreate VirtualFree SetEnvironmentVariableA LCMapStringA LCMapStringW VirtualAlloc IsBadWritePtr SetUnhandledExceptionFilter GetStringTypeA GetStringTypeW CompareStringA CompareStringW IsBadReadPtr IsBadCodePtr SetStdHandle

user32

GetMenu SetMenu PeekMessageA IsIconic SetFocus GetActiveWindow GetWindow DestroyAcceleratorTable GetSysColorBrush CopyAcceleratorTableA GetKeyState TranslateAcceleratorA IsWindowEnabled ShowWindow SystemParametersInfoA LoadImageA EnumDisplaySettingsA ClientToScreen EnableMenuItem GetSubMenu GetDlgCtrlID CreateAcceleratorTableA CreateMenu ModifyMenuA AppendMenuA CreatePopupMenu DrawIconEx CreateIconFromResource CreateIconFromResourceEx RegisterClipboardFormatA SetRectEmpty SetWindowRgn GetMessagePos ScreenToClient ChildWindowFromPointEx DispatchMessageA LoadBitmapA WinHelpA KillTimer SetTimer ReleaseCapture GetCapture SetCapture LoadStringA GetScrollRange SetScrollRange SetScrollPos SetRect InflateRect IntersectRect DestroyIcon PtInRect IsWindowVisible EnableWindow RedrawWindow GetWindowLongA SetWindowLongA GetSysColor SetActiveWindow SetCursorPos LoadCursorA SetCursor GetDC FillRect IsRectEmpty ReleaseDC IsChild DestroyMenu SetForegroundWindow GetWindowRect EqualRect UpdateWindow ValidateRect InvalidateRect GetClientRect GetFocus GetParent GetTopWindow PostMessageA IsWindow SetParent DestroyCursor SendMessageA SetWindowPos MessageBoxA GetCursorPos GetSystemMetrics EmptyClipboard SetClipboardData OpenClipboard GetClipboardData CloseClipboard wsprintfA WaitForInputIdle GetMessageA WindowFromPoint DrawEdge DrawFrameControl TranslateMessage LoadIconA GetForegroundWindow GetDesktopWindow GetClassNameA GetWindowThreadProcessId FindWindowA GetDlgItem GetWindowTextA DefWindowProcA GetClassInfoA IsZoomed OffsetRect PostQuitMessage CopyRect UnregisterClassA DrawFocusRect GetWindowTextLengthA CharUpperA GetWindowDC BeginPaint EndPaint TabbedTextOutA DrawTextA GrayStringA DestroyWindow CreateDialogIndirectParamA EndDialog GetNextDlgTabItem GetWindowPlacement RegisterWindowMessageA GetLastActivePopup GetMessageTime RemovePropA CallWindowProcA GetPropA UnhookWindowsHookEx SetPropA GetClassLongA CallNextHookEx SetWindowsHookExA CreateWindowExA GetMenuItemID GetMenuItemCount RegisterClassA GetScrollPos AdjustWindowRectEx MapWindowPoints SendDlgItemMessageA ScrollWindowEx IsDialogMessageA SetWindowTextA MoveWindow CheckMenuItem SetMenuItemBitmaps GetMenuState GetMenuCheckMarkDimensions

gdi32

GetViewportExtEx ExtSelectClipRgn LineTo MoveToEx GetObjectA CreatePen PatBlt CombineRgn CreateRectRgn FillRgn CreateSolidBrush GetStockObject CreateFontIndirectA EndPage EndDoc DeleteDC StartDocA StartPage BitBlt CreateCompatibleDC PtVisible Rectangle LPtoDP DPtoLP GetCurrentObject RoundRect GetTextExtentPoint32A GetDeviceCaps CreateRectRgnIndirect SetBkColor ExcludeClipRect GetClipBox ScaleWindowExtEx SetWindowExtEx SetWindowOrgEx ScaleViewportExtEx SetViewportExtEx OffsetViewportOrgEx SetViewportOrgEx RectVisible TextOutA ExtTextOutA Escape GetTextMetricsA SelectObject CreateBitmap CreateDCA CreateCompatibleBitmap GetPolyFillMode GetStretchBltMode GetROP2 GetBkColor GetBkMode GetTextColor CreateRoundRectRgn CreateEllipticRgn PathToRegion EndPath BeginPath GetWindowOrgEx GetViewportOrgEx GetWindowExtEx GetDIBits SetMapMode SetTextColor SetROP2 SetPolyFillMode SetBkMode RestoreDC SaveDC RealizePalette SelectPalette StretchBlt CreatePalette GetSystemPaletteEntries CreateDIBitmap DeleteObject CreatePolygonRgn GetClipRgn Ellipse SelectClipRgn SetStretchBltMode

winspool.drv

OpenPrinterA DocumentPropertiesA ClosePrinter

advapi32

RegOpenKeyExA RegSetValueExA RegQueryValueA RegCreateKeyExA RegCloseKey

shell32

SHGetFileInfoA SHGetSpecialFolderPathA ShellExecuteA Shell_NotifyIconA

ole32

CLSIDFromString OleUninitialize CoCreateInstance OleInitialize

oleaut32

LoadTypeLi RegisterTypeLi UnRegisterTypeLi

comctl32

ord17 ImageList_Destroy

comdlg32

ChooseColorA GetFileTitleA GetSaveFileNameA GetOpenFileNameA