Overview
overview
10Static
static
1SteamSetup.exe
windows10-2004-x64
4SteamSetup.exe
windows11-21h2-x64
9$PLUGINSDI...ls.dll
windows10-2004-x64
3$PLUGINSDI...ls.dll
windows11-21h2-x64
3$PLUGINSDI...em.dll
windows10-2004-x64
3$PLUGINSDI...em.dll
windows11-21h2-x64
3$PLUGINSDI...gs.dll
windows10-2004-x64
3$PLUGINSDI...gs.dll
windows11-21h2-x64
3$PLUGINSDI...ec.dll
windows10-2004-x64
3$PLUGINSDI...ec.dll
windows11-21h2-x64
3$PLUGINSDI...ss.dll
windows10-2004-x64
3$PLUGINSDI...ss.dll
windows11-21h2-x64
3Steam.exe
windows10-2004-x64
10Steam.exe
windows11-21h2-x64
9bin/SteamService.exe
windows10-2004-x64
1bin/SteamService.exe
windows11-21h2-x64
1uninstall.exe
windows10-2004-x64
4uninstall.exe
windows11-21h2-x64
4$PLUGINSDI...LL.dll
windows10-2004-x64
3$PLUGINSDI...LL.dll
windows11-21h2-x64
3$PLUGINSDI...nk.dll
windows10-2004-x64
3$PLUGINSDI...nk.dll
windows11-21h2-x64
3$PLUGINSDI...ec.dll
windows10-2004-x64
3$PLUGINSDI...ec.dll
windows11-21h2-x64
3Analysis
- max time kernel
598s - max time network
444s - platform
windows10-2004_x64 - resource
win10v2004-20260130-en - resource tags
arch:x64arch:x86image:win10v2004-20260130-enlocale:en-usos:windows10-2004-x64systemwindows - submitted
31/03/2026, 00:21
Static task
static1
Behavioral task
behavioral1
Sample
SteamSetup.exe
Resource
win10v2004-20260130-en
Behavioral task
behavioral2
Sample
SteamSetup.exe
Resource
win11-20260130-en
Behavioral task
behavioral3
Sample
$PLUGINSDIR/StdUtils.dll
Resource
win10v2004-20260130-en
Behavioral task
behavioral4
Sample
$PLUGINSDIR/StdUtils.dll
Resource
win11-20260130-en
Behavioral task
behavioral5
Sample
$PLUGINSDIR/System.dll
Resource
win10v2004-20260130-en
Behavioral task
behavioral6
Sample
$PLUGINSDIR/System.dll
Resource
win11-20260130-en
Behavioral task
behavioral7
Sample
$PLUGINSDIR/nsDialogs.dll
Resource
win10v2004-20260130-en
Behavioral task
behavioral8
Sample
$PLUGINSDIR/nsDialogs.dll
Resource
win11-20260130-en
Behavioral task
behavioral9
Sample
$PLUGINSDIR/nsExec.dll
Resource
win10v2004-20260130-en
Behavioral task
behavioral10
Sample
$PLUGINSDIR/nsExec.dll
Resource
win11-20260130-en
Behavioral task
behavioral11
Sample
$PLUGINSDIR/nsProcess.dll
Resource
win10v2004-20260130-en
Behavioral task
behavioral12
Sample
$PLUGINSDIR/nsProcess.dll
Resource
win11-20260130-en
Behavioral task
behavioral13
Sample
Steam.exe
Resource
win10v2004-20260130-en
Behavioral task
behavioral14
Sample
Steam.exe
Resource
win11-20260130-en
Behavioral task
behavioral15
Sample
bin/SteamService.exe
Resource
win10v2004-20260130-en
Behavioral task
behavioral16
Sample
bin/SteamService.exe
Resource
win11-20260130-en
Behavioral task
behavioral17
Sample
uninstall.exe
Resource
win10v2004-20260130-en
Behavioral task
behavioral18
Sample
uninstall.exe
Resource
win11-20260130-en
Behavioral task
behavioral19
Sample
$PLUGINSDIR/LangDLL.dll
Resource
win10v2004-20260130-en
Behavioral task
behavioral20
Sample
$PLUGINSDIR/LangDLL.dll
Resource
win11-20260130-en
Behavioral task
behavioral21
Sample
$PLUGINSDIR/ShellLink.dll
Resource
win10v2004-20260130-en
Behavioral task
behavioral22
Sample
$PLUGINSDIR/ShellLink.dll
Resource
win11-20260130-en
Behavioral task
behavioral23
Sample
$PLUGINSDIR/nsExec.dll
Resource
win10v2004-20260130-en
Behavioral task
behavioral24
Sample
$PLUGINSDIR/nsExec.dll
Resource
win11-20260130-en
General
- Target $PLUGINSDIR/nsDialogs.dll
- Size 20KB
- Sample260331-anmsjaey4s
- SHA256 91a484dc79be64dd11bf5acb62c893e57505fcd8809483aa92b04f10d81f9de0
- MD5 4e5bc4458afa770636f2806ee0a1e999
- SHA1 76dcc64af867526f776ab9225e7f4fe076487765
- SHA512 b6f529073a943bddbcb30a57d62216c78fcc9a09424b51ac0824ebfb9cac6cae4211bda26522d6923bd228f244ed8c41656c38284c71867f65d425727dd70162
- SSDEEP 384:ABSzm+t18pZ0WAg0RhIFgnGNyQH38E9VF6IYinAM+oZfNRoZk:NupZ/Ag0/T8MEpYinAMxZ7oW
- TLSH T11EA26CA385542C33CE874E3635D8653EDBB9731664808CC25326C24197A439B7FB83AA
- MD5 SHA1 SHA512 SSDEEP TLSH
Malware Config
Signatures
- Program crash 1 IoCs
pid pid_target Process procid_target 6108 4248 WerFault.exe 85 - 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 3300 wrote to memory of 4248 3300 rundll32.exe 85
Processes
-
C:\Windows\system32\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\$PLUGINSDIR\nsDialogs.dll,#11⤵
- Suspicious use of WriteProcessMemory
PID:3300 -
C:\Windows\SysWOW64\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\$PLUGINSDIR\nsDialogs.dll,#12⤵
- System Location Discovery: System Language Discovery
PID:4248 -
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 4248 -s 6363⤵
- Program crash
PID:6108
-
-
-
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 4248 -ip 42481⤵PID:5348