BackdoorWin32Farfli[.]BG!MTB[.]zip

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General

Target

BackdoorWin32Farfli.BG!MTB.zip
Size

1.4MB
MD5

da3318b027b96de5abcdba50451c18d7
SHA1

913f234b1d8aec751f9a65144858646381d3936d
SHA256

26a8132834990f9f77ba247ef6a59b028949b75b4b154b0519670259ad832501
SHA512

d8eec1e1caed89e9c49287174d0211c0ddde48806bc53adf8a619d10ce32740844e826eed29daf295a1ffc916f9827e538b65c8792c06a94da392cad62cd6554
SSDEEP

24576:B4roqqqOS/6SPWaKck/4ct1eTdgAOCcX/ut8grt4Fa82UzqJgpUOVNvAALlEp9aI:B4roG/dPzK9LvegABI2egrqFazq8GrVS

Score

3^/10

Malware Config

Signatures

Unsigned PE 1 IoCs

Checks for missing Authenticode signature.

resource
unpack001/Backdoor.Win32.Farfli.BG!MTB.exe

Files

BackdoorWin32Farfli.BG!MTB.zip
.zip
Backdoor.Win32.Farfli.BG!MTB.exe
.exe windows:4 windows x86 arch:x86

e5190c5e183d406cdd77111381b80c0e

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

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

Sections

.text
Size: 508KB - Virtual size: 506KB

IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ

.rdata
Size: 548KB - Virtual size: 547KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.data
Size: 72KB - Virtual size: 208KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

.rsrc
Size: 588KB - Virtual size: 586KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

Sharing

General

Malware Config

Signatures

Files

e5190c5e183d406cdd77111381b80c0e

Headers

File Characteristics

Imports

winmm

ws2_32

kernel32

user32

gdi32

winspool.drv

advapi32

shell32

ole32

oleaut32

comctl32

comdlg32

Sections

.text Size: 508KB - Virtual size: 506KB

.rdata Size: 548KB - Virtual size: 547KB

.data Size: 72KB - Virtual size: 208KB

.rsrc Size: 588KB - Virtual size: 586KB

.text
Size: 508KB - Virtual size: 506KB

.rdata
Size: 548KB - Virtual size: 547KB

.data
Size: 72KB - Virtual size: 208KB

.rsrc
Size: 588KB - Virtual size: 586KB