r77 | 3a63992bc8760d45bd1e0887421fc7d510f490025109d5c1a7247d09ed2f14ff

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General

Target

3a63992bc8760d45bd1e0887421fc7d510f490025109d5c1a7247d09ed2f14ff
Size

2.5MB
MD5

eaca518b1e134dcb313324dfe5be66fb
SHA1

b4c66ccf5b67adb33ea9e6fa2c16e97f5d31f1df
SHA256

3a63992bc8760d45bd1e0887421fc7d510f490025109d5c1a7247d09ed2f14ff
SHA512

697513968490a072ab468b44b0e7e84f7480703b6d31d16db3d75be90b004d116ae57e1367e1d8ce436d48f661c193551a23716da1513577395d218d03296797
SSDEEP

49152:RSnEknyUzsrkl5daDwXt8aHc68V/V7L1T:GDn3z0kUDwXtfH+5V1T

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
3a63992bc8760d45bd1e0887421fc7d510f490025109d5c1a7247d09ed2f14ff

Files

3a63992bc8760d45bd1e0887421fc7d510f490025109d5c1a7247d09ed2f14ff
.exe windows:4 windows x86

6d9c4c6124711fa3cae460fda386a873

Headers

File Characteristics

IMAGE_FILE_RELOCS_STRIPPED
IMAGE_FILE_EXECUTABLE_IMAGE
IMAGE_FILE_LINE_NUMS_STRIPPED
IMAGE_FILE_LOCAL_SYMS_STRIPPED
IMAGE_FILE_32BIT_MACHINE

Imports

winmm

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

ws2_32

recvfrom
recv
ioctlsocket
send
inet_ntoa
WSAStartup
WSACleanup
select
accept
getpeername
closesocket
WSAAsyncSelect

rasapi32

RasGetConnectStatusA
RasHangUpA

kernel32

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

user32

wsprintfA
WaitForInputIdle
InflateRect
CloseClipboard
GetClipboardData
OpenClipboard
SetClipboardData
EmptyClipboard
GetSysColorBrush
SetWindowTextA
GetForegroundWindow
EnumWindows
GetWindowTextA
GetDlgItem
FindWindowA
GetWindowThreadProcessId
GetClassNameA
GetDesktopWindow
LoadIconA
TranslateMessage
DrawFrameControl
DrawEdge
DrawFocusRect
WindowFromPoint
GetMessageA
DispatchMessageA
SetRectEmpty
RegisterClipboardFormatA
CreateIconFromResourceEx
CreateIconFromResource
DrawIconEx
CreatePopupMenu
AppendMenuA
ModifyMenuA
CreateMenu
CreateAcceleratorTableA
GetDlgCtrlID
LoadStringA
GetMenuCheckMarkDimensions
GetMenuState
SetMenuItemBitmaps
CheckMenuItem
MoveWindow
IsDialogMessageA
ScrollWindowEx
SendDlgItemMessageA
MapWindowPoints
AdjustWindowRectEx
GetScrollPos
RegisterClassA
GetMenuItemCount
GetMenuItemID
CreateWindowExA
SetWindowsHookExA
CallNextHookEx
GetClassLongA
SetPropA
UnhookWindowsHookEx
GetPropA
CallWindowProcA
RemovePropA
GetSubMenu
EnableMenuItem
ClientToScreen
EnumDisplaySettingsA
LoadImageA
SystemParametersInfoA
ShowWindow
IsWindowEnabled
TranslateAcceleratorA
GetKeyState
CopyAcceleratorTableA
PostQuitMessage
IsZoomed
GetClassInfoA
DefWindowProcA
GetSystemMenu
DeleteMenu
GetMenu
SetMenu
PeekMessageA
IsIconic
SetFocus
GetActiveWindow
GetWindow
DestroyAcceleratorTable
SetWindowRgn
GetMessagePos
ScreenToClient
ChildWindowFromPointEx
CopyRect
LoadBitmapA
WinHelpA
KillTimer
SetTimer
ReleaseCapture
GetCapture
SetCapture
GetScrollRange
SetScrollRange
SetScrollPos
SetRect
UnregisterClassA
IntersectRect
DestroyIcon
PtInRect
OffsetRect
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
GetWindowTextLengthA
CharUpperA
GetWindowDC
BeginPaint
EndPaint
TabbedTextOutA
DrawTextA
GrayStringA
DestroyWindow
CreateDialogIndirectParamA
EndDialog
GetNextDlgTabItem
GetWindowPlacement
RegisterWindowMessageA
GetLastActivePopup
GetMessageTime

gdi32

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

winspool.drv

OpenPrinterA
DocumentPropertiesA
ClosePrinter

advapi32

RegCloseKey
RegQueryValueExA
RegOpenKeyExA
RegSetValueExA
RegQueryValueA
RegOpenKeyA
RegCreateKeyExA

shell32

SHGetSpecialFolderPathA
Shell_NotifyIconA
ShellExecuteA

ole32

CLSIDFromString
OleUninitialize
OleInitialize

oleaut32

UnRegisterTypeLi
RegisterTypeLi
LoadTypeLi

comctl32

ord17
ImageList_Destroy

wininet

InternetCloseHandle

comdlg32

ChooseColorA
GetOpenFileNameA
GetSaveFileNameA
GetFileTitleA

Sections

.text
Size: 660KB - Virtual size: 658KB

IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ

.rdata
Size: 1.7MB - Virtual size: 1.7MB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.data
Size: 140KB - Virtual size: 354KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

.rsrc
Size: 40KB - Virtual size: 36KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

Sharing

General

Malware Config

Signatures

Files

6d9c4c6124711fa3cae460fda386a873

Headers

File Characteristics

Imports

winmm

ws2_32

rasapi32

kernel32

user32

gdi32

winspool.drv

advapi32

shell32

ole32

oleaut32

comctl32

wininet

comdlg32

Sections

.text Size: 660KB - Virtual size: 658KB

.rdata Size: 1.7MB - Virtual size: 1.7MB

.data Size: 140KB - Virtual size: 354KB

.rsrc Size: 40KB - Virtual size: 36KB

.text
Size: 660KB - Virtual size: 658KB

.rdata
Size: 1.7MB - Virtual size: 1.7MB

.data
Size: 140KB - Virtual size: 354KB

.rsrc
Size: 40KB - Virtual size: 36KB