Webex[.]exe | Triage

Sharing

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General

Target

Webex.exe
Size

196KB
MD5

f3fc04e607fddcda329f1d854def73d2
SHA1

a1c82af92d950ac6e1f9d92b8e73aeb23ce7fcce
SHA256

b55dbbf2b253c84d0502ae16db3e3f394a26356dd7f5a3971cfe2995def5b289
SHA512

a16525e9571a0336fd655c4b06c416dbcc67bf23e5b8607c95b78b2cfe729f676ae358ad505b47994ddee12c63ddedcf9c03297bffc2c82fd6983b6cf64f8910
SSDEEP

6144:JBp4uGFHDcKw9LaH52h4/raX1VnbmFCSCmCF9Y:zpOFHYp922h4WF0F1CmCPY

Score

3^/10

Malware Config

Signatures

Unsigned PE 1 IoCs

Checks for missing Authenticode signature.

resource
Webex.exe

Files

Webex.exe
.exe windows:6 windows x86 arch:x86

13fe41b65a7d517237699b0c8f8bd553

Headers

DLL Characteristics

IMAGE_DLLCHARACTERISTICS_DYNAMIC_BASE
IMAGE_DLLCHARACTERISTICS_NX_COMPAT
IMAGE_DLLCHARACTERISTICS_TERMINAL_SERVER_AWARE

File Characteristics

IMAGE_FILE_EXECUTABLE_IMAGE
IMAGE_FILE_32BIT_MACHINE

Imports

kernel32

DecodePointer
HeapReAlloc
HeapSize
BackupRead
GetConsoleOutputCP
FlushFileBuffers
CreateFileW
SetFilePointerEx
GetFileSizeEx
GetStringTypeW
GetThreadGroupAffinity
GetProcessHeap
GetCurrentDirectoryW
HeapAlloc
LoadLibraryW
CloseHandle
DeleteFileW
GetUserDefaultLCID
EscapeCommFunction
GetLastError
ConvertThreadToFiberEx
FindActCtxSectionStringA
_lopen
CommConfigDialogA
GetCommTimeouts
GetTimeFormatA
GetLargePageMinimum
SetFilePointer
SetThreadPriority
ReleaseSemaphore
HeapFree
SetConsoleScreenBufferSize
GetConsoleMode
CreateDirectoryW
SetStdHandle
FreeEnvironmentStringsW
GetEnvironmentStringsW
WideCharToMultiByte
GetCommandLineW
GetCommandLineA
GetCPInfo
GetOEMCP
GetACP
IsValidCodePage
FindNextFileW
FindFirstFileExW
FindClose
WriteConsoleW
UnhandledExceptionFilter
SetUnhandledExceptionFilter
GetCurrentProcess
TerminateProcess
IsProcessorFeaturePresent
QueryPerformanceCounter
GetCurrentProcessId
GetCurrentThreadId
GetSystemTimeAsFileTime
InitializeSListHead
IsDebuggerPresent
GetStartupInfoW
GetModuleHandleW
RtlUnwind
RaiseException
SetLastError
EncodePointer
EnterCriticalSection
LeaveCriticalSection
DeleteCriticalSection
InitializeCriticalSectionAndSpinCount
TlsAlloc
TlsGetValue
TlsSetValue
TlsFree
FreeLibrary
GetProcAddress
LoadLibraryExW
GetStdHandle
WriteFile
GetModuleFileNameW
ExitProcess
GetModuleHandleExW
GetFileType
MultiByteToWideChar
LCMapStringW

user32

GetActiveWindow
SetCaretPos
MessageBoxW
OpenIcon
SetSysColors
CopyAcceleratorTableA
SetRect
LoadIconA
PaintDesktop
SetWindowPlacement
RedrawWindow
SetParent

gdi32

ColorMatchToTarget
ModifyWorldTransform
GetDCPenColor
SetBoundsRect
CreateBitmapIndirect
CreateHatchBrush
SetWindowExtEx
GetLogColorSpaceA
CreateICA
EqualRgn
PolyPolygon
ChoosePixelFormat
LineTo
ExtCreatePen
SetStretchBltMode
RestoreDC
PtInRegion
EnumObjects
GetBrushOrgEx
ExtSelectClipRgn
GetViewportOrgEx

advapi32

ConvertSidToStringSidA

shell32

SHGetFolderPathW

ole32

CoUninitialize
CoCreateInstance
WriteClassStg
CoInitialize
OleNoteObjectVisible

uxtheme

GetThemeSysColorBrush
DrawThemeIcon
GetThemePartSize
GetThemeSysFont
GetBufferedPaintTargetRect
ord47
EndBufferedAnimation

Sections

.text
Size: 149KB - Virtual size: 149KB

IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ

.rdata
Size: 32KB - Virtual size: 32KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.data
Size: 3KB - Virtual size: 12KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

.rsrc
Size: 4KB - Virtual size: 3KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.reloc
Size: 6KB - Virtual size: 6KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ

Sharing

General

Malware Config

Signatures

Files

13fe41b65a7d517237699b0c8f8bd553

Headers

DLL Characteristics

File Characteristics

Imports

kernel32

user32

gdi32

advapi32

shell32

ole32

uxtheme

Sections

.text Size: 149KB - Virtual size: 149KB

.rdata Size: 32KB - Virtual size: 32KB

.data Size: 3KB - Virtual size: 12KB

.rsrc Size: 4KB - Virtual size: 3KB

.reloc Size: 6KB - Virtual size: 6KB

.text
Size: 149KB - Virtual size: 149KB

.rdata
Size: 32KB - Virtual size: 32KB

.data
Size: 3KB - Virtual size: 12KB

.rsrc
Size: 4KB - Virtual size: 3KB

.reloc
Size: 6KB - Virtual size: 6KB