Overview
overview
9Static
static
1SteamSetup.exe
windows11-21h2-x64
9$PLUGINSDI...ls.dll
windows11-21h2-x64
3$PLUGINSDI...em.dll
windows11-21h2-x64
3$PLUGINSDI...gs.dll
windows11-21h2-x64
3$PLUGINSDI...ec.dll
windows11-21h2-x64
3$PLUGINSDI...ss.dll
windows11-21h2-x64
3Steam.exe
windows11-21h2-x64
4bin/SteamService.exe
windows11-21h2-x64
1uninstall.exe
windows11-21h2-x64
4$PLUGINSDI...LL.dll
windows11-21h2-x64
3$PLUGINSDI...nk.dll
windows11-21h2-x64
3$PLUGINSDI...ec.dll
windows11-21h2-x64
3Analysis
- max time kernel
898s - max time network
534s - platform
windows11-21h2_x64 - resource
win11-20260513-en - resource tags
arch:x64arch:x86image:win11-20260513-enlocale:en-usos:windows11-21h2-x64systemwindows - submitted
02/08/2026, 16:43
Static task
static1
Behavioral task
behavioral1
Sample
SteamSetup.exe
Resource
win11-20260513-en
Behavioral task
behavioral2
Sample
$PLUGINSDIR/StdUtils.dll
Resource
win11-20260513-en
Behavioral task
behavioral3
Sample
$PLUGINSDIR/System.dll
Resource
win11-20260513-en
Behavioral task
behavioral4
Sample
$PLUGINSDIR/nsDialogs.dll
Resource
win11-20260513-en
Behavioral task
behavioral5
Sample
$PLUGINSDIR/nsExec.dll
Resource
win11-20260513-en
Behavioral task
behavioral6
Sample
$PLUGINSDIR/nsProcess.dll
Resource
win11-20260513-en
Behavioral task
behavioral7
Sample
Steam.exe
Resource
win11-20260513-en
Behavioral task
behavioral8
Sample
bin/SteamService.exe
Resource
win11-20260513-en
Behavioral task
behavioral9
Sample
uninstall.exe
Resource
win11-20260513-en
Behavioral task
behavioral10
Sample
$PLUGINSDIR/LangDLL.dll
Resource
win11-20260513-en
Behavioral task
behavioral11
Sample
$PLUGINSDIR/ShellLink.dll
Resource
win11-20260513-en
Behavioral task
behavioral12
Sample
$PLUGINSDIR/nsExec.dll
Resource
win11-20260513-en
General
- Target $PLUGINSDIR/LangDLL.dll
- Size 16KB
- Sample260802-t8a41sxane
- SHA256 4fca692a36f0c99e26b5bc7ef9db5269d2c1e21288184953898130fea9b1c4fc
- MD5 46ba3881f8b27f54a8d92d600e61ee7b
- SHA1 15933b6ece85a6d45fd78ae499b445a3bc6d2d05
- SHA512 6f64d3cb4634ed51710f578667b92a429aa871a0a141092df3cf7e0134a0b145f802f91126f1ce43ddb4b9d6cc6fb875c9acec22eab0cec86a72dd916e1f9eb3
- SSDEEP 384:kTrZBV86AQINyQH38E9VF6IYinAM+oZtfpMVK:kXZL86A1MEpYinAMxZ5aK
- TLSH T12E725BB286805C15CE4B8D3274D5A537AA727B926BC0C1D7136AC1518B907C37FFC2EA
- MD5 SHA1 SHA512 SSDEEP TLSH
Malware Config
Signatures
- Program crash 1 IoCs
pid pid_target Process procid_target 5680 3820 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 6036 wrote to memory of 3820 6036 rundll32.exe 80
Processes
-
C:\Windows\system32\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\$PLUGINSDIR\LangDLL.dll,#11⤵
- Suspicious use of WriteProcessMemory
PID:6036 -
C:\Windows\SysWOW64\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\$PLUGINSDIR\LangDLL.dll,#12⤵
- System Location Discovery: System Language Discovery
PID:3820 -
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 3820 -s 4483⤵
- Program crash
PID:5680
-
-
-
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 412 -p 3820 -ip 38201⤵PID:2136