VEXTMOBSPluginInstaller[.]zip

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General

Target

VEXTMOBSPluginInstaller.zip
Size

249KB
MD5

f26659ede10b17e6ff04353549b446d3
SHA1

3cf51cd8ba7f3c5f543c8b965c4828c3ca76162f
SHA256

e2cf549779bae6478a7a40938dad90cb655ea22085e22ddec16bb2d31edfc697
SHA512

1d2ea61777e30f01118430a38aa2c4df52ea6d9cb0389af0349b653714f03f3683ba078f375231d09a93744d6668617ab1e2c30953a64c7dba9083f0caa0236a
SSDEEP

6144:tbzbUqoh6Ue9bAdWbaBJcCoLdKLGCD2xToJqyhx2E+HPP:tbzbwh6LbAdWbOXLbDQTLG2EmH

Score

3^/10

Malware Config

Signatures

Unsigned PE 3 IoCs

Checks for missing Authenticode signature.

resource
unpack001/VEXTMOBSPluginInstaller.exe
unpack002/$PLUGINSDIR/InstallOptions.dll
unpack002/$PROGRAMFILES64/obs-studio/obs-plugins/64bit/vextm-source.dll

NSIS installer 2 IoCs

installer

resource	yara_rule
static1/unpack001/VEXTMOBSPluginInstaller.exe	nsis_installer_1
static1/unpack001/VEXTMOBSPluginInstaller.exe	nsis_installer_2

Files

VEXTMOBSPluginInstaller.zip
.zip
VEXTMOBSPluginInstaller.exe
.exe windows:4 windows x86 arch:x86

7fa974366048f9c551ef45714595665e

Headers

DLL Characteristics

IMAGE_DLLCHARACTERISTICS_TERMINAL_SERVER_AWARE

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

kernel32

CompareFileTime
SearchPathA
GetShortPathNameA
GetFullPathNameA
MoveFileA
SetCurrentDirectoryA
GetFileAttributesA
GetLastError
CreateDirectoryA
SetFileAttributesA
Sleep
GetTickCount
GetFileSize
GetModuleFileNameA
GetCurrentProcess
CopyFileA
ExitProcess
GetWindowsDirectoryA
SetFileTime
GetCommandLineA
SetErrorMode
LoadLibraryA
lstrcpynA
GetDiskFreeSpaceA
GlobalUnlock
GlobalLock
CreateThread
CreateProcessA
RemoveDirectoryA
CreateFileA
GetTempFileNameA
lstrlenA
lstrcatA
GetSystemDirectoryA
GetVersion
CloseHandle
lstrcmpiA
lstrcmpA
ExpandEnvironmentStringsA
GlobalFree
GlobalAlloc
WaitForSingleObject
GetExitCodeProcess
GetModuleHandleA
LoadLibraryExA
GetProcAddress
FreeLibrary
MultiByteToWideChar
WritePrivateProfileStringA
GetPrivateProfileStringA
WriteFile
ReadFile
MulDiv
SetFilePointer
FindClose
FindNextFileA
FindFirstFileA
DeleteFileA
GetTempPathA

user32

EndDialog
ScreenToClient
GetWindowRect
EnableMenuItem
GetSystemMenu
SetClassLongA
IsWindowEnabled
SetWindowPos
GetSysColor
GetWindowLongA
SetCursor
LoadCursorA
CheckDlgButton
GetMessagePos
LoadBitmapA
CallWindowProcA
IsWindowVisible
CloseClipboard
SetClipboardData
EmptyClipboard
RegisterClassA
TrackPopupMenu
AppendMenuA
CreatePopupMenu
GetSystemMetrics
SetDlgItemTextA
GetDlgItemTextA
MessageBoxIndirectA
CharPrevA
DispatchMessageA
PeekMessageA
DestroyWindow
CreateDialogParamA
SetTimer
SetWindowTextA
PostQuitMessage
SetForegroundWindow
wsprintfA
SendMessageTimeoutA
FindWindowExA
SystemParametersInfoA
CreateWindowExA
GetClassInfoA
DialogBoxParamA
CharNextA
OpenClipboard
ExitWindowsEx
IsWindow
GetDlgItem
SetWindowLongA
LoadImageA
GetDC
EnableWindow
InvalidateRect
SendMessageA
DefWindowProcA
BeginPaint
GetClientRect
FillRect
DrawTextA
EndPaint
ShowWindow

gdi32

SetBkColor
GetDeviceCaps
DeleteObject
CreateBrushIndirect
CreateFontIndirectA
SetBkMode
SetTextColor
SelectObject

shell32

SHGetPathFromIDListA
SHBrowseForFolderA
SHGetFileInfoA
ShellExecuteA
SHFileOperationA
SHGetSpecialFolderLocation

advapi32

RegQueryValueExA
RegSetValueExA
RegEnumKeyA
RegEnumValueA
RegOpenKeyExA
RegDeleteKeyA
RegDeleteValueA
RegCloseKey
RegCreateKeyExA

comctl32

ImageList_AddMasked
ImageList_Destroy
ord17
ImageList_Create

ole32

CoTaskMemFree
OleInitialize
OleUninitialize
CoCreateInstance

version

GetFileVersionInfoSizeA
GetFileVersionInfoA
VerQueryValueA

Sections

.text
Size: 23KB - Virtual size: 23KB

IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ

.rdata
Size: 5KB - Virtual size: 4KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.data
Size: 1024B - Virtual size: 151KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

.ndata
Size: - Virtual size: 36KB

IMAGE_SCN_CNT_UNINITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

.rsrc
Size: 405KB - Virtual size: 404KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
$PLUGINSDIR/InstallOptions.dll
.dll windows:4 windows x86 arch:x86

b1cd0d78f652ce5fc63f0879371af012

Headers

File Characteristics

IMAGE_FILE_EXECUTABLE_IMAGE
IMAGE_FILE_LINE_NUMS_STRIPPED
IMAGE_FILE_LOCAL_SYMS_STRIPPED
IMAGE_FILE_32BIT_MACHINE
IMAGE_FILE_DLL

Imports

kernel32

SetCurrentDirectoryA
GetCurrentDirectoryA
MultiByteToWideChar
GetPrivateProfileIntA
GlobalLock
GetModuleHandleA
lstrcmpiA
GetPrivateProfileStringA
lstrcatA
lstrcpynA
WritePrivateProfileStringA
lstrlenA
lstrcpyA
GlobalFree
GlobalUnlock
GlobalAlloc

user32

MapWindowPoints
GetDlgCtrlID
CloseClipboard
GetClipboardData
OpenClipboard
PtInRect
SetWindowRgn
LoadIconA
LoadImageA
SetWindowLongA
CreateWindowExA
MapDialogRect
SetWindowPos
GetWindowRect
CreateDialogParamA
ShowWindow
EnableMenuItem
GetSystemMenu
EnableWindow
GetDlgItem
DestroyIcon
DestroyWindow
DispatchMessageA
TranslateMessage
GetMessageA
IsDialogMessageA
LoadCursorA
SetCursor
DrawTextA
GetWindowLongA
DrawFocusRect
CallWindowProcA
PostMessageA
MessageBoxA
CharNextA
wsprintfA
GetWindowTextA
SetWindowTextA
SendMessageA
GetClientRect

gdi32

SetTextColor
CreateCompatibleDC
GetObjectA
GetDIBits
CreateRectRgn
CombineRgn
DeleteObject
SelectObject

shell32

SHBrowseForFolderA
SHGetDesktopFolder
SHGetPathFromIDListA
ShellExecuteA

comdlg32

GetOpenFileNameA
GetSaveFileNameA
CommDlgExtendedError

ole32

CoTaskMemFree

Exports

Exports

dialog
initDialog
show

Sections

.text
Size: 7KB - Virtual size: 6KB

IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ

.rdata
Size: 2KB - Virtual size: 2KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.data
Size: 2KB - Virtual size: 10KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

.rsrc
Size: 512B - Virtual size: 152B

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.reloc
Size: 1KB - Virtual size: 1KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ
$PLUGINSDIR/ioSpecial.ini
$PLUGINSDIR/modern-header.bmp
$PLUGINSDIR/modern-wizard.bmp
$PROGRAMFILES64/obs-studio/data/obs-plugins/vextm-source/locale/en-US.ini
$PROGRAMFILES64/obs-studio/obs-plugins/64bit/vextm-source.dll
.dll windows:4 windows x64 arch:x64

c2a2ee71f1edb5317ca791dd2f062adf

Headers

DLL Characteristics

IMAGE_DLLCHARACTERISTICS_HIGH_ENTROPY_VA
IMAGE_DLLCHARACTERISTICS_DYNAMIC_BASE
IMAGE_DLLCHARACTERISTICS_NX_COMPAT

File Characteristics

IMAGE_FILE_EXECUTABLE_IMAGE
IMAGE_FILE_LINE_NUMS_STRIPPED
IMAGE_FILE_LOCAL_SYMS_STRIPPED
IMAGE_FILE_LARGE_ADDRESS_AWARE
IMAGE_FILE_DEBUG_STRIPPED
IMAGE_FILE_DLL

Imports

kernel32

AddVectoredExceptionHandler
CloseHandle
CreateEventA
CreateFileMappingA
CreateProcessA
CreateSemaphoreA
DeleteCriticalSection
DuplicateHandle
EnterCriticalSection
GetCurrentProcess
GetCurrentProcessId
GetCurrentThread
GetCurrentThreadId
GetHandleInformation
GetLastError
GetProcessAffinityMask
GetSystemTimeAsFileTime
GetThreadContext
GetThreadPriority
GetTickCount64
InitializeCriticalSection
IsDBCSLeadByteEx
IsDebuggerPresent
LeaveCriticalSection
MapViewOfFile
MultiByteToWideChar
OpenProcess
OutputDebugStringA
RaiseException
ReleaseSemaphore
RemoveVectoredExceptionHandler
ResetEvent
ResumeThread
SetEvent
SetLastError
SetProcessAffinityMask
SetThreadContext
SetThreadPriority
Sleep
SuspendThread
TerminateProcess
TlsAlloc
TlsGetValue
TlsSetValue
TryEnterCriticalSection
UnmapViewOfFile
VirtualProtect
VirtualQuery
WaitForMultipleObjects
WaitForSingleObject
WideCharToMultiByte
__C_specific_handler

msvcrt

___lc_codepage_func
___mb_cur_max_func
__iob_func
_amsg_exit
_beginthreadex
_endthreadex
_errno
_initterm
_lock
_setjmp
_strdup
_ultoa
_unlock
abort
calloc
exit
fprintf
fputc
free
fwrite
localeconv
longjmp
malloc
memcpy
memmove
memset
printf
rand
realloc
signal
strcpy
strerror
strlen
strncmp
strncpy
vfprintf
wcslen

obs

bfree
blog
bmalloc
gs_image_file_free
gs_image_file_init_texture
obs_data_get_bool
obs_data_get_int
obs_data_get_string
obs_data_set_default_bool
obs_data_set_default_int
obs_data_set_default_string
obs_module_load_locale
obs_properties_add_bool
obs_properties_add_int
obs_properties_add_list
obs_properties_add_text
obs_properties_create
obs_property_list_add_int
obs_register_source_s
obs_source_output_video
text_lookup_destroy
text_lookup_getstr

Exports

Exports

__pth_gpointer_locked
__pthread_clock_nanosleep
__pthread_shallcancel
__xl_f
_pthread_cleanup_dest
_pthread_get_state
_pthread_invoke_cancel
_pthread_key_dest
_pthread_rel_time_in_ms
_pthread_set_state
_pthread_setnobreak
_pthread_time_in_ms
_pthread_time_in_ms_from_timespec
_pthread_tryjoin
_pthread_wait_for_multiple_objects
_pthread_wait_for_single_object
cond_print
cond_print_set
display_cmd
display_default_args
do_sema_b_wait_intern
generate_color_bars
get_color_bar_data
obs_current_module
obs_module_free_locale
obs_module_get_string
obs_module_load
obs_module_lookup
obs_module_set_locale
obs_module_set_pointer
obs_module_text
obs_module_ver
plat_kill
plat_spawn
pthread_attr_destroy
pthread_attr_getdetachstate
pthread_attr_getinheritsched
pthread_attr_getschedparam
pthread_attr_getschedpolicy
pthread_attr_getscope
pthread_attr_getstack
pthread_attr_getstackaddr
pthread_attr_getstacksize
pthread_attr_init
pthread_attr_setdetachstate
pthread_attr_setinheritsched
pthread_attr_setschedparam
pthread_attr_setschedpolicy
pthread_attr_setscope
pthread_attr_setstack
pthread_attr_setstackaddr
pthread_attr_setstacksize
pthread_cancel
pthread_cond_broadcast
pthread_cond_destroy
pthread_cond_init
pthread_cond_signal
pthread_cond_timedwait
pthread_cond_timedwait_relative_np
pthread_cond_wait
pthread_condattr_destroy
pthread_condattr_getclock
pthread_condattr_getpshared
pthread_condattr_init
pthread_condattr_setclock
pthread_condattr_setpshared
pthread_create
pthread_create_wrapper
pthread_delay_np
pthread_delay_np_ms
pthread_detach
pthread_equal
pthread_exit
pthread_get_concurrency
pthread_getclean
pthread_getconcurrency
pthread_getevent
pthread_gethandle
pthread_getname_np
pthread_getschedparam
pthread_getspecific
pthread_join
pthread_key_create
pthread_key_delete
pthread_kill
pthread_mutex_destroy
pthread_mutex_init
pthread_mutex_lock
pthread_mutex_timedlock
pthread_mutex_trylock
pthread_mutex_unlock
pthread_mutexattr_destroy
pthread_mutexattr_getprioceiling
pthread_mutexattr_getprotocol
pthread_mutexattr_getpshared
pthread_mutexattr_gettype
pthread_mutexattr_init
pthread_mutexattr_setprioceiling
pthread_mutexattr_setprotocol
pthread_mutexattr_setpshared
pthread_mutexattr_settype
pthread_num_processors_np
pthread_once
pthread_rwlock_destroy
pthread_rwlock_init
pthread_rwlock_rdlock
pthread_rwlock_timedrdlock
pthread_rwlock_timedwrlock
pthread_rwlock_tryrdlock
pthread_rwlock_trywrlock
pthread_rwlock_unlock
pthread_rwlock_wrlock
pthread_rwlockattr_destroy
pthread_rwlockattr_getpshared
pthread_rwlockattr_init
pthread_rwlockattr_setpshared
pthread_self
pthread_set_concurrency
pthread_set_num_processors_np
pthread_setcancelstate
pthread_setcanceltype
pthread_setconcurrency
pthread_setname_np
pthread_setschedparam
pthread_setspecific
pthread_spin_destroy
pthread_spin_init
pthread_spin_lock
pthread_spin_trylock
pthread_spin_unlock
pthread_testcancel
pthread_timechange_handler_np
pthread_tls_init
rwl_print
rwl_print_set
sched_get_priority_max
sched_get_priority_min
sched_getscheduler
sched_setscheduler
sched_yield
shm_fd_close
shm_fd_open
shm_mmap
shm_mmap_close
shm_sem_close
shm_sem_create
shm_sem_wait
thread_print
thread_print_set
vextm_source_thread

Sections

.text
Size: 54KB - Virtual size: 54KB

IMAGE_SCN_CNT_CODE
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ

.data
Size: 1024B - Virtual size: 688B

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

.rdata
Size: 7.9MB - Virtual size: 7.9MB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.pdata
Size: 3KB - Virtual size: 3KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.xdata
Size: 3KB - Virtual size: 3KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.bss
Size: - Virtual size: 2KB

IMAGE_SCN_CNT_UNINITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

.edata
Size: 5KB - Virtual size: 4KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.idata
Size: 4KB - Virtual size: 4KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

.CRT
Size: 512B - Virtual size: 96B

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

.tls
Size: 512B - Virtual size: 16B

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

.reloc
Size: 512B - Virtual size: 120B

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ

Sharing

General

Malware Config

Signatures

Files

7fa974366048f9c551ef45714595665e

Headers

DLL Characteristics

File Characteristics

Imports

kernel32

user32

gdi32

shell32

advapi32

comctl32

ole32

version

Sections

.text Size: 23KB - Virtual size: 23KB

.rdata Size: 5KB - Virtual size: 4KB

.data Size: 1024B - Virtual size: 151KB

.ndata Size: - Virtual size: 36KB

.rsrc Size: 405KB - Virtual size: 404KB

b1cd0d78f652ce5fc63f0879371af012

Headers

File Characteristics

Imports

kernel32

user32

gdi32

shell32

comdlg32

ole32

Exports

Exports

Sections

.text Size: 7KB - Virtual size: 6KB

.rdata Size: 2KB - Virtual size: 2KB

.data Size: 2KB - Virtual size: 10KB

.rsrc Size: 512B - Virtual size: 152B

.reloc Size: 1KB - Virtual size: 1KB

c2a2ee71f1edb5317ca791dd2f062adf

Headers

DLL Characteristics

File Characteristics

Imports

kernel32

msvcrt

obs

Exports

Exports

Sections

.text Size: 54KB - Virtual size: 54KB

.data Size: 1024B - Virtual size: 688B

.rdata Size: 7.9MB - Virtual size: 7.9MB

.pdata Size: 3KB - Virtual size: 3KB

.xdata Size: 3KB - Virtual size: 3KB

.bss Size: - Virtual size: 2KB

.edata Size: 5KB - Virtual size: 4KB

.idata Size: 4KB - Virtual size: 4KB

.CRT Size: 512B - Virtual size: 96B

.tls Size: 512B - Virtual size: 16B

.reloc Size: 512B - Virtual size: 120B

.text
Size: 23KB - Virtual size: 23KB

.rdata
Size: 5KB - Virtual size: 4KB

.data
Size: 1024B - Virtual size: 151KB

.ndata
Size: - Virtual size: 36KB

.rsrc
Size: 405KB - Virtual size: 404KB

.text
Size: 7KB - Virtual size: 6KB

.rdata
Size: 2KB - Virtual size: 2KB

.data
Size: 2KB - Virtual size: 10KB

.rsrc
Size: 512B - Virtual size: 152B

.reloc
Size: 1KB - Virtual size: 1KB

.text
Size: 54KB - Virtual size: 54KB

.data
Size: 1024B - Virtual size: 688B

.rdata
Size: 7.9MB - Virtual size: 7.9MB

.pdata
Size: 3KB - Virtual size: 3KB

.xdata
Size: 3KB - Virtual size: 3KB

.bss
Size: - Virtual size: 2KB

.edata
Size: 5KB - Virtual size: 4KB

.idata
Size: 4KB - Virtual size: 4KB

.CRT
Size: 512B - Virtual size: 96B

.tls
Size: 512B - Virtual size: 16B

.reloc
Size: 512B - Virtual size: 120B