Overview
overview
8Static
static
7assistance...ue.exe
windows10-2004-x64
4assistance...ue.exe
windows11-21h2-x64
4$PLUGINSDI...64.dll
windows10-2004-x64
3$PLUGINSDI...64.dll
windows11-21h2-x64
3$PLUGINSDI...LL.dll
windows10-2004-x64
3$PLUGINSDI...LL.dll
windows11-21h2-x64
3$PLUGINSDI...ns.dll
windows10-2004-x64
3$PLUGINSDI...ns.dll
windows11-21h2-x64
3$PLUGINSDI...rb.dll
windows10-2004-x64
3$PLUGINSDI...rb.dll
windows11-21h2-x64
3$PLUGINSDI...LL.dll
windows10-2004-x64
3$PLUGINSDI...LL.dll
windows11-21h2-x64
3$PLUGINSDI...LL.dll
windows10-2004-x64
3$PLUGINSDI...LL.dll
windows11-21h2-x64
3$PLUGINSDI...nu.dll
windows10-2004-x64
3$PLUGINSDI...nu.dll
windows11-21h2-x64
3$PLUGINSDI...em.dll
windows10-2004-x64
3$PLUGINSDI...em.dll
windows11-21h2-x64
3$PLUGINSDI...on.dll
windows10-2004-x64
3$PLUGINSDI...on.dll
windows11-21h2-x64
3$PLUGINSDIR/UAC.dll
windows10-2004-x64
3$PLUGINSDIR/UAC.dll
windows11-21h2-x64
3$PLUGINSDI...fo.dll
windows10-2004-x64
3$PLUGINSDI...fo.dll
windows11-21h2-x64
3$PLUGINSDI...ay.dll
windows10-2004-x64
5$PLUGINSDI...ay.dll
windows11-21h2-x64
5$PLUGINSDI...ec.dll
windows10-2004-x64
3$PLUGINSDI...ec.dll
windows11-21h2-x64
3$PLUGINSDI...7z.dll
windows10-2004-x64
3$PLUGINSDI...7z.dll
windows11-21h2-x64
3TeamViewer.exe
windows10-2004-x64
8TeamViewer.exe
windows11-21h2-x64
7Analysis
- max time kernel
149s - max time network
151s - platform
windows10-2004_x64 - resource
win10v2004-20260130-en - resource tags
arch:x64arch:x86image:win10v2004-20260130-enlocale:en-usos:windows10-2004-x64systemwindows - submitted
22/04/2026, 00:18
Behavioral task
behavioral1
Sample
assistance-informatique.exe
Resource
win10v2004-20260130-en
Behavioral task
behavioral2
Sample
assistance-informatique.exe
Resource
win11-20260130-en
Behavioral task
behavioral3
Sample
$PLUGINSDIR/Base64.dll
Resource
win10v2004-20260130-en
Behavioral task
behavioral4
Sample
$PLUGINSDIR/Base64.dll
Resource
win11-20260130-en
Behavioral task
behavioral5
Sample
$PLUGINSDIR/FindProcDLL.dll
Resource
win10v2004-20260130-en
Behavioral task
behavioral6
Sample
$PLUGINSDIR/FindProcDLL.dll
Resource
win11-20260130-en
Behavioral task
behavioral7
Sample
$PLUGINSDIR/InstallOptions.dll
Resource
win10v2004-20260130-en
Behavioral task
behavioral8
Sample
$PLUGINSDIR/InstallOptions.dll
Resource
win11-20260130-en
Behavioral task
behavioral9
Sample
$PLUGINSDIR/InvokeShellVerb.dll
Resource
win10v2004-20260130-en
Behavioral task
behavioral10
Sample
$PLUGINSDIR/InvokeShellVerb.dll
Resource
win11-20260130-en
Behavioral task
behavioral11
Sample
$PLUGINSDIR/KillProcDLL.dll
Resource
win10v2004-20260130-en
Behavioral task
behavioral12
Sample
$PLUGINSDIR/KillProcDLL.dll
Resource
win11-20260130-en
Behavioral task
behavioral13
Sample
$PLUGINSDIR/LangDLL.dll
Resource
win10v2004-20260130-en
Behavioral task
behavioral14
Sample
$PLUGINSDIR/LangDLL.dll
Resource
win11-20260130-en
Behavioral task
behavioral15
Sample
$PLUGINSDIR/StartMenu.dll
Resource
win10v2004-20260130-en
Behavioral task
behavioral16
Sample
$PLUGINSDIR/StartMenu.dll
Resource
win11-20260130-en
Behavioral task
behavioral17
Sample
$PLUGINSDIR/System.dll
Resource
win10v2004-20260130-en
Behavioral task
behavioral18
Sample
$PLUGINSDIR/System.dll
Resource
win11-20260130-en
Behavioral task
behavioral19
Sample
$PLUGINSDIR/TvGetVersion.dll
Resource
win10v2004-20260130-en
Behavioral task
behavioral20
Sample
$PLUGINSDIR/TvGetVersion.dll
Resource
win11-20260130-en
Behavioral task
behavioral21
Sample
$PLUGINSDIR/UAC.dll
Resource
win10v2004-20260130-en
Behavioral task
behavioral22
Sample
$PLUGINSDIR/UAC.dll
Resource
win11-20260130-en
Behavioral task
behavioral23
Sample
$PLUGINSDIR/UserInfo.dll
Resource
win10v2004-20260130-en
Behavioral task
behavioral24
Sample
$PLUGINSDIR/UserInfo.dll
Resource
win11-20260130-en
Behavioral task
behavioral25
Sample
$PLUGINSDIR/nsArray.dll
Resource
win10v2004-20260130-en
Behavioral task
behavioral26
Sample
$PLUGINSDIR/nsArray.dll
Resource
win11-20260130-en
Behavioral task
behavioral27
Sample
$PLUGINSDIR/nsExec.dll
Resource
win10v2004-20260130-en
Behavioral task
behavioral28
Sample
$PLUGINSDIR/nsExec.dll
Resource
win11-20260130-en
Behavioral task
behavioral29
Sample
$PLUGINSDIR/nsis7z.dll
Resource
win10v2004-20260130-en
Behavioral task
behavioral30
Sample
$PLUGINSDIR/nsis7z.dll
Resource
win11-20260130-en
Behavioral task
behavioral31
Sample
TeamViewer.exe
Resource
win10v2004-20260130-en
Behavioral task
behavioral32
Sample
TeamViewer.exe
Resource
win11-20260130-en
General
- Target $PLUGINSDIR/LangDLL.dll
- Size 5KB
- Sample260422-als7jaev9p
- SHA256 01773690efda3c1fa609287f4bf2277f3d366fe4a1ddc099d2949fab54f0fbd4
- MD5 be828e6e1885cc5a25e18f123e2a76a0
- SHA1 96432bf2da4e1c454f49f76e20855f27c2fce2f9
- SHA512 983e9a9e941b162031b8acf372c3ec12180b54f8e5f7172a6e87599e127170240841889d6e346a730f4970c9079f5f9cededc2730f910eb4e0bb897f68cfca70
- SSDEEP 48:S46+/ITKYKxbWsptIpBtWZ0iV8jAWiAJCvxft2O2B8m/ofjLl:zKuPbOBtWZBV8jAWiAJCdv2CmCL
- TLSH T135C19574B3C248B9C491553778EB37D36612EE746784600F9B6711AA38209E7AD3EBC3
- MD5 SHA1 SHA512 SSDEEP TLSH
Malware Config
Signatures
- Program crash 1 IoCs
pid pid_target Process procid_target 1700 2060 WerFault.exe 84 - 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 1 IoCs
description pid Process procid_target PID 3880 wrote to memory of 2060 3880 rundll32.exe 84
Processes
-
C:\Windows\system32\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\$PLUGINSDIR\LangDLL.dll,#11⤵
- Suspicious use of WriteProcessMemory
PID:3880 -
C:\Windows\SysWOW64\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\$PLUGINSDIR\LangDLL.dll,#12⤵
- System Location Discovery: System Language Discovery
PID:2060 -
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 2060 -s 6003⤵
- Program crash
PID:1700
-
-
-
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 424 -p 2060 -ip 20601⤵PID:764