Overview
overview
7Static
static
3VideoThumb...up.exe
windows11-21h2-x64
7$PLUGINSDI...er.dll
windows11-21h2-x64
3$PLUGINSDI...em.dll
windows11-21h2-x64
3$PLUGINSDIR/UAC.dll
windows11-21h2-x64
3$PLUGINSDI...nu.dll
windows11-21h2-x64
3$PLUGINSDI...dl.dll
windows11-21h2-x64
3DirectShow...05.dll
windows11-21h2-x64
1FFmpeg.AutoGen.dll
windows11-21h2-x64
1FFmpeg/x64...61.dll
windows11-21h2-x64
1FFmpeg/x64...61.dll
windows11-21h2-x64
1FFmpeg/x64...10.dll
windows11-21h2-x64
1FFmpeg/x64...61.dll
windows11-21h2-x64
1FFmpeg/x64...59.dll
windows11-21h2-x64
1FFmpeg/x64/ffmpeg.exe
windows11-21h2-x64
1FFmpeg/x64...be.exe
windows11-21h2-x64
1FFmpeg/x64...-5.dll
windows11-21h2-x64
1FFmpeg/x64...-8.dll
windows11-21h2-x64
1PicturesTh...er.exe
windows11-21h2-x64
1Uninstall.exe
windows11-21h2-x64
7$PLUGINSDIR/UAC.dll
windows11-21h2-x64
3VideoThumb...er.exe
windows11-21h2-x64
1WebP/x64/libwebp.dll
windows11-21h2-x64
1WebP/x64/l...ux.dll
windows11-21h2-x64
1WebP/x64/l...ux.dll
windows11-21h2-x64
1apng.lib.dll
windows11-21h2-x64
1d2dlib64.dll
windows11-21h2-x64
1d2dlibexport.dll
windows11-21h2-x64
1d2dwinform.dll
windows11-21h2-x64
1loop.cur
windows11-21h2-x64
3Analysis
-
max time kernel
244s -
max time network
293s -
platform
windows11-21h2_x64 -
resource
win11-20240802-en -
resource tags
arch:x64arch:x86image:win11-20240802-enlocale:en-usos:windows11-21h2-x64system -
submitted
12-10-2024 00:44
Static task
static1
Behavioral task
behavioral1
Sample
VideoThumbnailsMaker_64bit_Setup.exe
Resource
win11-20241007-en
Behavioral task
behavioral2
Sample
$PLUGINSDIR/DotNetChecker.dll
Resource
win11-20241007-en
Behavioral task
behavioral3
Sample
$PLUGINSDIR/System.dll
Resource
win11-20240802-en
Behavioral task
behavioral4
Sample
$PLUGINSDIR/UAC.dll
Resource
win11-20241007-en
Behavioral task
behavioral5
Sample
$PLUGINSDIR/nsisStartMenu.dll
Resource
win11-20241007-en
Behavioral task
behavioral6
Sample
$PLUGINSDIR/nsisdl.dll
Resource
win11-20241007-en
Behavioral task
behavioral7
Sample
DirectShowLib-2005.dll
Resource
win11-20241007-en
Behavioral task
behavioral8
Sample
FFmpeg.AutoGen.dll
Resource
win11-20241007-en
Behavioral task
behavioral9
Sample
FFmpeg/x64/avcodec-61.dll
Resource
win11-20241007-en
Behavioral task
behavioral10
Sample
FFmpeg/x64/avdevice-61.dll
Resource
win11-20241007-en
Behavioral task
behavioral11
Sample
FFmpeg/x64/avfilter-10.dll
Resource
win11-20241007-en
Behavioral task
behavioral12
Sample
FFmpeg/x64/avformat-61.dll
Resource
win11-20241007-en
Behavioral task
behavioral13
Sample
FFmpeg/x64/avutil-59.dll
Resource
win11-20241007-en
Behavioral task
behavioral14
Sample
FFmpeg/x64/ffmpeg.exe
Resource
win11-20240802-en
Behavioral task
behavioral15
Sample
FFmpeg/x64/ffprobe.exe
Resource
win11-20241007-en
Behavioral task
behavioral16
Sample
FFmpeg/x64/swresample-5.dll
Resource
win11-20241007-en
Behavioral task
behavioral17
Sample
FFmpeg/x64/swscale-8.dll
Resource
win11-20241007-en
Behavioral task
behavioral18
Sample
PicturesThumbnailsViewer.exe
Resource
win11-20241007-en
Behavioral task
behavioral19
Sample
Uninstall.exe
Resource
win11-20241007-en
Behavioral task
behavioral20
Sample
$PLUGINSDIR/UAC.dll
Resource
win11-20241007-en
Behavioral task
behavioral21
Sample
VideoThumbnailsMaker.exe
Resource
win11-20241007-en
Behavioral task
behavioral22
Sample
WebP/x64/libwebp.dll
Resource
win11-20241007-en
Behavioral task
behavioral23
Sample
WebP/x64/libwebpdemux.dll
Resource
win11-20240802-en
Behavioral task
behavioral24
Sample
WebP/x64/libwebpmux.dll
Resource
win11-20241007-en
Behavioral task
behavioral25
Sample
apng.lib.dll
Resource
win11-20241007-en
Behavioral task
behavioral26
Sample
d2dlib64.dll
Resource
win11-20241007-en
Behavioral task
behavioral27
Sample
d2dlibexport.dll
Resource
win11-20241007-en
Behavioral task
behavioral28
Sample
d2dwinform.dll
Resource
win11-20241007-en
Behavioral task
behavioral29
Sample
loop.cur
Resource
win11-20241007-en
General
-
Target
$PLUGINSDIR/System.dll
-
Size
12KB
-
MD5
564bb0373067e1785cba7e4c24aab4bf
-
SHA1
7c9416a01d821b10b2eef97b80899d24014d6fc1
-
SHA256
7a9ddee34562cd3703f1502b5c70e99cd5bba15de2b6845a3555033d7f6cb2a5
-
SHA512
22c61a323cb9293d7ec5c7e7e60674d0e2f7b29d55be25eb3c128ea2cd7440a1400cee17c43896b996278007c0d247f331a9b8964e3a40a0eb1404a9596c4472
-
SSDEEP
192:nenY0qWTlt70IAj/lQ0sEWc/wtYbBH2aDybC7y+XBDIwL:n8+Qlt70Fj/lQRY/9VjjfL
Malware Config
Signatures
-
Program crash 1 IoCs
pid pid_target Process procid_target 3540 3388 WerFault.exe 78 -
System Location Discovery: System Language Discovery 1 TTPs 1 IoCs
Attempt gather information about the system language of a victim in order to infer the geographical location of that host.
description ioc Process Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language rundll32.exe -
Suspicious use of WriteProcessMemory 3 IoCs
description pid Process procid_target PID 5296 wrote to memory of 3388 5296 rundll32.exe 78 PID 5296 wrote to memory of 3388 5296 rundll32.exe 78 PID 5296 wrote to memory of 3388 5296 rundll32.exe 78
Processes
-
C:\Windows\system32\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\$PLUGINSDIR\System.dll,#11⤵
- Suspicious use of WriteProcessMemory
PID:5296 -
C:\Windows\SysWOW64\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\$PLUGINSDIR\System.dll,#12⤵
- System Location Discovery: System Language Discovery
PID:3388 -
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 3388 -s 4603⤵
- Program crash
PID:3540
-
-
-
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 3388 -ip 33881⤵PID:2992