Rextv4[.]exe | Triage

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General

Target

Rextv4.exe
Size

17.3MB
MD5

bc4f8672c12ae18582016310ae9e2e56
SHA1

c4fd235f8ddfb7a7e1c62e9f2a9b0379e5f5d775
SHA256

20f0c7e6fcf0d58475409efb7a412d0c16444c2406ca7333f25e1aaaa2a79c36
SHA512

e1fc9103875027f6d79000144622d767b6e8ffac4f9eca84f72aca18602db9de360be43a1d9830742594592e9c383cfdb00a1efdffe970eed2a41bd46a21e168
SSDEEP

393216:xJQaPHrQqXs140qMhu8369sV+HLz9SKUeNdDhHiWGGWV2JRG57qUrs+cWb2JytmS:xJQaPHrQqXs140qMhlK9sV+HLz9SKUeD

Score

3^/10

Malware Config

Signatures

Unsigned PE 1 IoCs

Checks for missing Authenticode signature.

resource
Rextv4.exe

Files

Rextv4.exe
.exe windows:4 windows x64 arch:x64

d8758d692042fe58850ee4533dad15f7

Headers

DLL Characteristics

IMAGE_DLLCHARACTERISTICS_TERMINAL_SERVER_AWARE

File Characteristics

IMAGE_FILE_RELOCS_STRIPPED
IMAGE_FILE_EXECUTABLE_IMAGE
IMAGE_FILE_LARGE_ADDRESS_AWARE

Imports

kernel32

GetTickCount
FreeLibrary
SetLastError
HeapFree
GetProcessHeap
HeapReAlloc
HeapAlloc
InitializeCriticalSection
DeleteCriticalSection
GetUserDefaultUILanguage
FindResourceExA
CompareStringW
GetCurrentProcessId
CloseHandle
SetEvent
GetLastError
WaitForSingleObject
CompareStringA
FormatMessageA
WriteFile
SetFileTime
GetModuleFileNameW
lstrcpyW
GetSystemTimeAsFileTime
FindFirstFileW
FindClose
lstrcatW
CreateFileA
ReadFile
IsBadReadPtr
CreateEventA
GetModuleFileNameA
SetFilePointer
GetCurrentProcess
GetWindowsDirectoryA
GetVolumeInformationA
FlushInstructionCache
WriteConsoleW
GetConsoleOutputCP
WriteConsoleA
FlushFileBuffers
SetStdHandle
SetEnvironmentVariableW
GetStringTypeW
GetStringTypeA
LCMapStringW
LCMapStringA
QueryPerformanceCounter
GetCommandLineW
GetCommandLineA
GetEnvironmentStringsW
FreeEnvironmentStringsW
GetEnvironmentStrings
FreeEnvironmentStringsA
GetConsoleMode
GetConsoleCP
GetStartupInfoA
GetFileType
SetHandleCount
GetTimeZoneInformation
IsValidCodePage
GetOEMCP
GetCPInfo
RtlVirtualUnwind
HeapCreate
HeapSetInformation
GetStdHandle
FlsAlloc
TlsSetValue
GetCurrentThreadId
FlsFree
TlsFree
FlsSetValue
FlsGetValue
RtlUnwindEx
RtlLookupFunctionEntry
RtlPcToFileHeader
GetStartupInfoW
RtlCaptureContext
IsDebuggerPresent
SetUnhandledExceptionFilter
UnhandledExceptionFilter
TerminateProcess
GetSystemInfo
VirtualAlloc
CreateThread
ResumeThread
ExitThread
GetThreadLocale
GetLocaleInfoA
GetACP
HeapSize
HeapDestroy
GetVersionExA
RaiseException
WideCharToMultiByte
lstrlenW
lstrcmpiW
SetEnvironmentVariableA
IsBadWritePtr
VirtualProtect
VirtualQuery
lstrcmpiA
GetModuleHandleA
Sleep
MultiByteToWideChar
ExitProcess
lstrcmpA
LoadLibraryA
GetProcAddress
LeaveCriticalSection
EnterCriticalSection
GlobalFree
GlobalUnlock
GlobalLock
GlobalAlloc
LockResource
LoadResource
SizeofResource
FindResourceA
lstrcpyA
lstrlenA

user32

UnregisterClassA
TranslateMessage
DrawIcon
DispatchMessageA
LoadIconA
CreateDialogIndirectParamA
SetTimer
EndPaint
KillTimer
DestroyWindow
EndDialog
GetDC
FillRect
GetClientRect
ReleaseDC
SetClassLongA
PtInRect
GetWindowRect
SetCursor
GetWindowLongA
LoadCursorA
GetSystemMetrics
SetWindowLongA
GetParent
GetCursorPos
GetDesktopWindow
LoadStringA
GetMessageA
MapWindowPoints
SetWindowPos
SendMessageA
SetForegroundWindow
ReleaseCapture
PostMessageA
SetActiveWindow
IsDialogMessageA
EnableWindow
SetWindowLongPtrA
GetActiveWindow
UpdateWindow
AdjustWindowRectEx
OffsetRect
CreateWindowExA
LoadImageA
RegisterClassExA
ScreenToClient
GetWindowTextLengthA
DefWindowProcA
SetWindowTextA
ShowWindow
TranslateAcceleratorA
SetFocus
DrawFocusRect
DrawTextA
GetWindowTextA
SetCapture
DrawEdge
CallWindowProcA
InvalidateRect
GetClassNameA
GetWindowLongPtrA
PostQuitMessage
TrackMouseEvent
MessageBoxA
wsprintfA
BeginPaint

gdi32

GetObjectA
SelectObject
GetDIBColorTable
StretchBlt
DeleteObject
CreateDIBSection
TextOutA
CreateCompatibleBitmap
SetBkMode
GetStockObject
SetTextColor
SetDIBColorTable
CreateFontIndirectA
CreateSolidBrush
CreateCompatibleDC
LineTo
DeleteDC
MoveToEx
CreatePen
GetTextExtentPointA
BitBlt

advapi32

RegDeleteValueA
RegCreateKeyExA
RegCloseKey
RegQueryValueExA
RegSetValueExA

ole32

CoCreateInstance
CoInitializeEx
CreateStreamOnHGlobal
CoSetProxyBlanket

oleaut32

GetErrorInfo
SystemTimeToVariantTime
VariantTimeToSystemTime
SysStringLen
SafeArrayDestroy
SysAllocString
SysFreeString
SafeArrayCreateVector
SafeArrayAccessData
SafeArrayUnaccessData
VariantInit
VariantClear
SysAllocStringLen
SafeArrayGetUBound
SafeArrayGetLBound
SafeArrayGetElement
SafeArrayPutElement

shlwapi

StrRChrW

gdiplus

GdiplusStartup
GdipFree
GdipCreateBitmapFromScan0
GdipCreateBitmapFromStream
GdipGetImagePalette
GdipDeleteGraphics
GdipAlloc
GdipDisposeImage
GdipGetImagePixelFormat
GdipGetImageHeight
GdipGetImageGraphicsContext
GdipCloneImage
GdipBitmapUnlockBits
GdipBitmapLockBits
GdiplusShutdown
GdipDrawImageI
GdipGetImagePaletteSize
GdipGetImageWidth

msimg32

TransparentBlt
AlphaBlend

iphlpapi

GetAdaptersInfo

version

GetFileVersionInfoA
GetFileVersionInfoSizeA
VerQueryValueA

Sections

.text
Size: 429KB - Virtual size: 428KB

IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ

.rdata
Size: 169KB - Virtual size: 169KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

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

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

.pdata
Size: 24KB - Virtual size: 24KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.#+[
Size: 3.2MB - Virtual size: 3.2MB

IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ

.vdata
Size: 11.7MB - Virtual size: 11.7MB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.rsrc
Size: 70KB - Virtual size: 70KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

Sharing

General

Malware Config

Signatures

Files

d8758d692042fe58850ee4533dad15f7

Headers

DLL Characteristics

File Characteristics

Imports

kernel32

user32

gdi32

advapi32

ole32

oleaut32

shlwapi

gdiplus

msimg32

iphlpapi

version

Sections

.text Size: 429KB - Virtual size: 428KB

.rdata Size: 169KB - Virtual size: 169KB

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

.pdata Size: 24KB - Virtual size: 24KB

.#+[ Size: 3.2MB - Virtual size: 3.2MB

.vdata Size: 11.7MB - Virtual size: 11.7MB

.rsrc Size: 70KB - Virtual size: 70KB

.text
Size: 429KB - Virtual size: 428KB

.rdata
Size: 169KB - Virtual size: 169KB

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

.pdata
Size: 24KB - Virtual size: 24KB

.#+[
Size: 3.2MB - Virtual size: 3.2MB

.vdata
Size: 11.7MB - Virtual size: 11.7MB

.rsrc
Size: 70KB - Virtual size: 70KB