Rex[.]exe | Triage

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General

Target

Rex.exe
Size

4.0MB
MD5

fd6e81310ab741a4e4338a9c7c4f6de7
SHA1

73830b9d2427726b608c4ea5c017c3c23bccead3
SHA256

2c4ab3869ef274622738a2b665f69f345992b46a80cc560853932a90121576a3
SHA512

6f3aa6db82523a897e1cfc557d2200ed07273a29a7bd46ced51eca331b49d50f64d2820d30777647d19a54b9ead6c2544531f6e04a8026d046b16c13a2515963
SSDEEP

49152:vKYCrVAeuEz0kmg099krIuKF4WF4dRIMlQSMFTcq8:55EykrmrF7MllMOq8

Score

3^/10

Malware Config

Signatures

Unsigned PE 1 IoCs

Checks for missing Authenticode signature.

resource
Rex.exe

Files

Rex.exe
.exe windows:5 windows x86 arch:x86

757fb3daa14e9920747b96c38ea8553b

Headers

DLL Characteristics

IMAGE_DLLCHARACTERISTICS_TERMINAL_SERVER_AWARE

File Characteristics

IMAGE_FILE_RELOCS_STRIPPED
IMAGE_FILE_EXECUTABLE_IMAGE
IMAGE_FILE_LARGE_ADDRESS_AWARE
IMAGE_FILE_32BIT_MACHINE

PDB Paths

c:\hudson\GMBase\GMGreen\GameMaker\Runner\VC_Runner\Release\Runner.pdb

Imports

wininet

InternetOpenA
HttpEndRequestW
InternetWriteFile
HttpQueryInfoA
InternetReadFile
InternetCloseHandle
InternetCrackUrlA
InternetCanonicalizeUrlA
HttpSendRequestA
InternetGetConnectedState
InternetConnectA
HttpOpenRequestA

d3dx9_43

D3DXGetVertexShaderProfile
D3DXCompileShader
D3DXGetPixelShaderProfile
D3DXCreateTextureFromFileW
D3DXGetImageInfoFromFileInMemory
D3DXCreateTextureFromFileInMemoryEx

dbghelp

MiniDumpWriteDump
SymInitialize
SymFromAddr

winmm

mciGetErrorStringA
joyGetPos
joyGetPosEx
joyGetDevCapsA
timeGetTime
waveInGetDevCapsW
waveInGetNumDevs
waveInAddBuffer
waveInClose
waveInUnprepareHeader
waveInPrepareHeader
waveInOpen
waveInReset
waveInStart
waveInStop
mciSendStringA

ws2_32

getaddrinfo
WSAAddressToStringA
freeaddrinfo
select
WSAGetLastError
__WSAFDIsSet
htons
htonl
ntohs
ntohl
inet_addr
closesocket
shutdown
WSAStartup
WSACleanup
getsockopt
setsockopt
ioctlsocket
socket
bind
listen
accept
recv
inet_ntoa
recvfrom
getpeername
send
connect
sendto
gethostname

gdiplus

GdiplusShutdown
GdiplusStartup

comctl32

InitCommonControlsEx

version

VerQueryValueW
GetFileVersionInfoSizeW
GetFileVersionInfoW

kernel32

GetFileAttributesA
GetTimeZoneInformation
GetStringTypeW
GetStringTypeA
IsValidLocale
EnumSystemLocalesA
GetLocaleInfoA
GetEnvironmentStringsW
FreeEnvironmentStringsW
LCMapStringW
LCMapStringA
GetFullPathNameA
SetConsoleCtrlHandler
SetFilePointer
SetStdHandle
ReadFile
FlushFileBuffers
GetConsoleMode
GetConsoleCP
IsValidCodePage
GetOEMCP
GetACP
GetCPInfo
HeapSize
SetLastError
GetModuleFileNameA
WriteFile
HeapDestroy
HeapCreate
VirtualAlloc
VirtualFree
FatalAppExitA
GetStdHandle
SetHandleCount
IsDebuggerPresent
UnhandledExceptionFilter
TerminateProcess
GetModuleHandleA
GetStartupInfoA
GetCommandLineA
CreateDirectoryA
GetFileType
PeekNamedPipe
GetFileInformationByHandle
DeleteFileA
HeapReAlloc
FindNextFileA
GetDateFormatA
GetTimeFormatA
GetSystemTimeAsFileTime
SetFileAttributesW
FindFirstFileA
GetDriveTypeA
FileTimeToLocalFileTime
FileTimeToSystemTime
HeapWalk
HeapValidate
HeapFree
RtlUnwind
CreateFileA
DebugBreak
HeapAlloc
RaiseException
InterlockedExchange
LocalAlloc
MultiByteToWideChar
GetConsoleWindow
WideCharToMultiByte
OutputDebugStringW
FreeEnvironmentStringsA
GetLastError
GetProcAddress
LoadLibraryW
GetFullPathNameW
GetCurrentDirectoryW
LocalFree
GetModuleHandleW
InterlockedDecrement
InterlockedIncrement
CreateThread
GetExitCodeThread
CloseHandle
DeleteFileW
Sleep
FreeLibrary
SetCurrentDirectoryA
GetCurrentDirectoryA
GetExitCodeProcess
CreateProcessW
GetEnvironmentVariableW
FindClose
FindNextFileW
RemoveDirectoryW
FindFirstFileW
GetFileAttributesW
CreateDirectoryW
GetTickCount
QueryPerformanceCounter
QueryPerformanceFrequency
WaitForSingleObject
SetWaitableTimer
CreateWaitableTimerW
SetThreadPriority
SetPriorityClass
GetCurrentProcess
GetCurrentThread
GlobalUnlock
GlobalLock
GlobalAlloc
GetVersionExW
GetUserDefaultLCID
GetLocaleInfoW
GetSystemInfo
GlobalMemoryStatusEx
ExitProcess
lstrlenA
ExpandEnvironmentStringsW
GetModuleFileNameW
MoveFileA
SetUnhandledExceptionFilter
SetErrorMode
GetCommandLineW
GetCurrentProcessId
GetCurrentThreadId
CreateFileW
IsBadWritePtr
InitializeCriticalSection
DeleteCriticalSection
LeaveCriticalSection
EnterCriticalSection
TlsAlloc
TlsSetValue
TlsGetValue
TlsFree
ExitThread
LoadLibraryA
SetEvent
CreateEventW
WaitForSingleObjectEx
RtlCaptureStackBackTrace
InitializeCriticalSectionAndSpinCount
GetEnvironmentStrings
WriteConsoleA
GetConsoleOutputCP
WriteConsoleW
CompareStringA
CompareStringW
SetEnvironmentVariableA
SetEnvironmentVariableW
SetEndOfFile
GetProcessHeap
FormatMessageW
VirtualQuery

user32

BringWindowToTop
ShowWindow
DestroyWindow
SetDlgItemTextW
GetDlgItemTextW
EndDialog
CreateDialogParamW
SetWindowTextW
ScreenToClient
ReleaseDC
DrawTextW
GetDC
GetDlgItem
DialogBoxParamW
MoveWindow
ClientToScreen
GetMonitorInfoW
SetCursorPos
MapWindowPoints
GetRawInputDeviceInfoA
GetRawInputDeviceList
GetCursorPos
wsprintfW
GetActiveWindow
DispatchMessageW
TranslateMessage
GetMessageW
EnumDisplaySettingsW
ChangeDisplaySettingsW
SetWindowLongW
SetForegroundWindow
EnumDisplaySettingsExW
EnumDisplayDevicesA
keybd_event
GetAsyncKeyState
SetWindowTextA
IsClipboardFormatAvailable
CloseClipboard
GetClipboardData
OpenClipboard
SetClipboardData
EmptyClipboard
GetFocus
MessageBoxA
SetDlgItemTextA
IsDialogMessageW
PeekMessageW
GetForegroundWindow
PostThreadMessageW
SendMessageW
SetCursor
GetClientRect
GetWindowRect
PostMessageW
SetFocus
DefWindowProcW
ReleaseCapture
SetCapture
GetKeyState
CallNextHookEx
MessageBoxW
SetWindowPos
GetSystemMetrics
LoadImageW
AdjustWindowRectEx
LoadCursorW
RegisterClassExW
UpdateWindow
CreateWindowExW

gdi32

GetDeviceCaps
CreateFontA
SelectObject
DeleteObject

comdlg32

GetSaveFileNameW
GetOpenFileNameW

advapi32

RegQueryValueExW
RegOpenKeyExW
RegCloseKey

shell32

SHGetFolderPathW
ShellExecuteW
SHGetSpecialFolderPathA

ole32

CoCreateInstance
CoInitialize
CoUninitialize

oleaut32

SysFreeString
SysAllocString
VariantClear

Sections

.text
Size: 2.8MB - Virtual size: 2.8MB

IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ

.rdata
Size: 881KB - Virtual size: 880KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.data
Size: 169KB - Virtual size: 2.5MB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

.mydata
Size: 512B - Virtual size: 8B

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

.rsrc
Size: 104KB - Virtual size: 104KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

Sharing

General

Malware Config

Signatures

Files

757fb3daa14e9920747b96c38ea8553b

Headers

DLL Characteristics

File Characteristics

PDB Paths

Imports

wininet

d3dx9_43

dbghelp

winmm

ws2_32

gdiplus

comctl32

version

kernel32

user32

gdi32

comdlg32

advapi32

shell32

ole32

oleaut32

Sections

.text Size: 2.8MB - Virtual size: 2.8MB

.rdata Size: 881KB - Virtual size: 880KB

.data Size: 169KB - Virtual size: 2.5MB

.mydata Size: 512B - Virtual size: 8B

.rsrc Size: 104KB - Virtual size: 104KB

.text
Size: 2.8MB - Virtual size: 2.8MB

.rdata
Size: 881KB - Virtual size: 880KB

.data
Size: 169KB - Virtual size: 2.5MB

.mydata
Size: 512B - Virtual size: 8B

.rsrc
Size: 104KB - Virtual size: 104KB