Overview
overview
5Static
static
3tavsegitseg.exe
windows10-2004-x64
5tavsegitseg.exe
windows11-21h2-x64
4$PLUGINSDI...ls.dll
windows10-2004-x64
3$PLUGINSDI...ls.dll
windows11-21h2-x64
3$PLUGINSDI...ns.dll
windows10-2004-x64
3$PLUGINSDI...ns.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$PLUGINSDI...ON.dll
windows10-2004-x64
3$PLUGINSDI...ON.dll
windows11-21h2-x64
3$PLUGINSDI...7z.dll
windows10-2004-x64
3$PLUGINSDI...7z.dll
windows11-21h2-x64
3TeamViewer.exe
windows10-2004-x64
5TeamViewer.exe
windows11-21h2-x64
3TeamViewer...op.exe
windows10-2004-x64
3TeamViewer...op.exe
windows11-21h2-x64
3TeamViewer_Note.exe
windows10-2004-x64
3TeamViewer_Note.exe
windows11-21h2-x64
3TeamViewer...ar.dll
windows10-2004-x64
1TeamViewer...ar.dll
windows11-21h2-x64
1TeamViewer...bg.dll
windows10-2004-x64
1TeamViewer...bg.dll
windows11-21h2-x64
1TeamViewer...cs.dll
windows10-2004-x64
1TeamViewer...cs.dll
windows11-21h2-x64
1TeamViewer...da.dll
windows10-2004-x64
1TeamViewer...da.dll
windows11-21h2-x64
1TeamViewer...de.dll
windows10-2004-x64
1TeamViewer...de.dll
windows11-21h2-x64
1TeamViewer...el.dll
windows10-2004-x64
1TeamViewer...el.dll
windows11-21h2-x64
1Analysis
- max time kernel
149s - max time network
95s - platform
windows11-21h2_x64 - resource
win11-20260130-en - resource tags
arch:x64arch:x86image:win11-20260130-enlocale:en-usos:windows11-21h2-x64systemwindows - submitted
02/05/2026, 12:16
Static task
static1
Behavioral task
behavioral1
Sample
tavsegitseg.exe
Resource
win10v2004-20260130-en
Behavioral task
behavioral2
Sample
tavsegitseg.exe
Resource
win11-20260130-en
Behavioral task
behavioral3
Sample
$PLUGINSDIR/CustomerTools.dll
Resource
win10v2004-20260130-en
Behavioral task
behavioral4
Sample
$PLUGINSDIR/CustomerTools.dll
Resource
win11-20260130-en
Behavioral task
behavioral5
Sample
$PLUGINSDIR/InstallOptions.dll
Resource
win10v2004-20260130-en
Behavioral task
behavioral6
Sample
$PLUGINSDIR/InstallOptions.dll
Resource
win11-20260130-en
Behavioral task
behavioral7
Sample
$PLUGINSDIR/System.dll
Resource
win10v2004-20260130-en
Behavioral task
behavioral8
Sample
$PLUGINSDIR/System.dll
Resource
win11-20260130-en
Behavioral task
behavioral9
Sample
$PLUGINSDIR/TvGetVersion.dll
Resource
win10v2004-20260130-en
Behavioral task
behavioral10
Sample
$PLUGINSDIR/TvGetVersion.dll
Resource
win11-20260130-en
Behavioral task
behavioral11
Sample
$PLUGINSDIR/nsJSON.dll
Resource
win10v2004-20260130-en
Behavioral task
behavioral12
Sample
$PLUGINSDIR/nsJSON.dll
Resource
win11-20260130-en
Behavioral task
behavioral13
Sample
$PLUGINSDIR/nsis7z.dll
Resource
win10v2004-20260130-en
Behavioral task
behavioral14
Sample
$PLUGINSDIR/nsis7z.dll
Resource
win11-20260130-en
Behavioral task
behavioral15
Sample
TeamViewer.exe
Resource
win10v2004-20260130-en
Behavioral task
behavioral16
Sample
TeamViewer.exe
Resource
win11-20260130-en
Behavioral task
behavioral17
Sample
TeamViewer_Desktop.exe
Resource
win10v2004-20260130-en
Behavioral task
behavioral18
Sample
TeamViewer_Desktop.exe
Resource
win11-20260130-en
Behavioral task
behavioral19
Sample
TeamViewer_Note.exe
Resource
win10v2004-20260130-en
Behavioral task
behavioral20
Sample
TeamViewer_Note.exe
Resource
win11-20260130-en
Behavioral task
behavioral21
Sample
TeamViewer_Resource_ar.dll
Resource
win10v2004-20260130-en
Behavioral task
behavioral22
Sample
TeamViewer_Resource_ar.dll
Resource
win11-20260130-en
Behavioral task
behavioral23
Sample
TeamViewer_Resource_bg.dll
Resource
win10v2004-20260130-en
Behavioral task
behavioral24
Sample
TeamViewer_Resource_bg.dll
Resource
win11-20260130-en
Behavioral task
behavioral25
Sample
TeamViewer_Resource_cs.dll
Resource
win10v2004-20260130-en
Behavioral task
behavioral26
Sample
TeamViewer_Resource_cs.dll
Resource
win11-20260130-en
Behavioral task
behavioral27
Sample
TeamViewer_Resource_da.dll
Resource
win10v2004-20260130-en
Behavioral task
behavioral28
Sample
TeamViewer_Resource_da.dll
Resource
win11-20260130-en
Behavioral task
behavioral29
Sample
TeamViewer_Resource_de.dll
Resource
win10v2004-20260130-en
Behavioral task
behavioral30
Sample
TeamViewer_Resource_de.dll
Resource
win11-20260130-en
Behavioral task
behavioral31
Sample
TeamViewer_Resource_el.dll
Resource
win10v2004-20260130-en
Behavioral task
behavioral32
Sample
TeamViewer_Resource_el.dll
Resource
win11-20260130-en
General
- Target $PLUGINSDIR/nsJSON.dll
- Size 30KB
- Sample260502-pffftaav8n
- SHA256 018cba12efaab3ec61cfa2c54772f0e070452d57f2fc71026826fd7e3f59bd39
- MD5 bcb13343ab422d2c7ce98e324bd02c8b
- SHA1 b6e633426c0d9f3d1f2ef0cf4a27218974da1f7f
- SHA512 dfa02415b6c2003eae5b19f49726536d023bf72dc1e4f123906c1e2fe6200473db8e674e94947f6e07f8cda9e0bbe28cab968225968ee832b8e4bfc5997240b7
- SSDEEP 768:V3wCtynHJAIl0CU4K7yAB8tpVdDQJNILw7/YiW+LZPxWEJY:ttypAY0WqVB8tpVdDQJNI07/7LPxA
- TLSH T182D26A66897048B1F97788B4B1E03E232A7DFD0258A0D5E713EB86055A603437B7E73B
- MD5 SHA1 SHA512 SSDEEP TLSH
Malware Config
Signatures
- Program crash 1 IoCs
pid pid_target Process procid_target 4672 1836 WerFault.exe 80 - 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 4884 wrote to memory of 1836 4884 rundll32.exe 80
Processes
-
C:\Windows\system32\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\$PLUGINSDIR\nsJSON.dll,#11⤵
- Suspicious use of WriteProcessMemory
PID:4884 -
C:\Windows\SysWOW64\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\$PLUGINSDIR\nsJSON.dll,#12⤵
- System Location Discovery: System Language Discovery
PID:1836 -
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 1836 -s 4643⤵
- Program crash
PID:4672
-
-
-
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 420 -p 1836 -ip 18361⤵PID:3844