Overview
overview
5Static
static
5SteamUI_402.rar
windows10-2004-x64
1SteamUI_402.rar
windows11-ltsc_2024-x64
1CSERHelper.dll
windows10-2004-x64
3CSERHelper.dll
windows11-ltsc_2024-x64
3GameOverla...er.dll
windows10-2004-x64
3GameOverla...er.dll
windows11-ltsc_2024-x64
3GameOverlayUI.exe
windows10-2004-x64
3GameOverlayUI.exe
windows11-ltsc_2024-x64
3Public/Account.html
windows10-2004-x64
3Public/Account.html
windows11-ltsc_2024-x64
3Public/ssa...sh.htm
windows10-2004-x64
3Public/ssa...sh.htm
windows11-ltsc_2024-x64
3Public/ssa_french.htm
windows10-2004-x64
3Public/ssa_french.htm
windows11-ltsc_2024-x64
3Public/ssa_german.htm
windows10-2004-x64
3Public/ssa_german.htm
windows11-ltsc_2024-x64
3Public/ssa...an.htm
windows10-2004-x64
3Public/ssa...an.htm
windows11-ltsc_2024-x64
3Public/ssa...an.htm
windows10-2004-x64
3Public/ssa...an.htm
windows11-ltsc_2024-x64
3Public/ssa...sh.htm
windows10-2004-x64
3Public/ssa...sh.htm
windows11-ltsc_2024-x64
3Steam.dll
windows10-2004-x64
3Steam.dll
windows11-ltsc_2024-x64
3Steam.exe
windows10-2004-x64
3Steam.exe
windows11-ltsc_2024-x64
3SteamUI.dll
windows10-2004-x64
3SteamUI.dll
windows11-ltsc_2024-x64
3WriteMiniDump.exe
windows10-2004-x64
3WriteMiniDump.exe
windows11-ltsc_2024-x64
3bin/FileSy...am.dll
windows10-2004-x64
3bin/FileSy...am.dll
windows11-ltsc_2024-x64
3Analysis
- max time kernel
148s - max time network
135s - platform
windows11-ltsc_2024_x64 - resource
win11ltsc2024-20260709-en - resource tags
arch:x64arch:x86image:win11ltsc2024-20260709-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows - submitted
23/08/2026, 03:33
Static task
static1
Behavioral task
behavioral1
Sample
SteamUI_402.rar
Resource
win10v2004-20260513-en
Behavioral task
behavioral2
Sample
SteamUI_402.rar
Resource
win11ltsc2024-20260709-en
Behavioral task
behavioral3
Sample
CSERHelper.dll
Resource
win10v2004-20260513-en
Behavioral task
behavioral4
Sample
CSERHelper.dll
Resource
win11ltsc2024-20260709-en
Behavioral task
behavioral5
Sample
GameOverlayRenderer.dll
Resource
win10v2004-20260513-en
Behavioral task
behavioral6
Sample
GameOverlayRenderer.dll
Resource
win11ltsc2024-20260710-en
Behavioral task
behavioral7
Sample
GameOverlayUI.exe
Resource
win10v2004-20260513-en
Behavioral task
behavioral8
Sample
GameOverlayUI.exe
Resource
win11ltsc2024-20260709-en
Behavioral task
behavioral9
Sample
Public/Account.html
Resource
win10v2004-20260513-en
Behavioral task
behavioral10
Sample
Public/Account.html
Resource
win11ltsc2024-20260709-en
Behavioral task
behavioral11
Sample
Public/ssa_english.htm
Resource
win10v2004-20260513-en
Behavioral task
behavioral12
Sample
Public/ssa_english.htm
Resource
win11ltsc2024-20260709-en
Behavioral task
behavioral13
Sample
Public/ssa_french.htm
Resource
win10v2004-20260513-en
Behavioral task
behavioral14
Sample
Public/ssa_french.htm
Resource
win11ltsc2024-20260709-en
Behavioral task
behavioral15
Sample
Public/ssa_german.htm
Resource
win10v2004-20260513-en
Behavioral task
behavioral16
Sample
Public/ssa_german.htm
Resource
win11ltsc2024-20260709-en
Behavioral task
behavioral17
Sample
Public/ssa_italian.htm
Resource
win10v2004-20260513-en
Behavioral task
behavioral18
Sample
Public/ssa_italian.htm
Resource
win11ltsc2024-20260709-en
Behavioral task
behavioral19
Sample
Public/ssa_russian.htm
Resource
win10v2004-20260513-en
Behavioral task
behavioral20
Sample
Public/ssa_russian.htm
Resource
win11ltsc2024-20260709-en
Behavioral task
behavioral21
Sample
Public/ssa_spanish.htm
Resource
win10v2004-20260513-en
Behavioral task
behavioral22
Sample
Public/ssa_spanish.htm
Resource
win11ltsc2024-20260709-en
Behavioral task
behavioral23
Sample
Steam.dll
Resource
win10v2004-20260513-en
Behavioral task
behavioral24
Sample
Steam.dll
Resource
win11ltsc2024-20260709-en
Behavioral task
behavioral25
Sample
Steam.exe
Resource
win10v2004-20260513-en
Behavioral task
behavioral26
Sample
Steam.exe
Resource
win11ltsc2024-20260709-en
Behavioral task
behavioral27
Sample
SteamUI.dll
Resource
win10v2004-20260513-en
Behavioral task
behavioral28
Sample
SteamUI.dll
Resource
win11ltsc2024-20260709-en
Behavioral task
behavioral29
Sample
WriteMiniDump.exe
Resource
win10v2004-20260513-en
Behavioral task
behavioral30
Sample
WriteMiniDump.exe
Resource
win11ltsc2024-20260709-en
Behavioral task
behavioral31
Sample
bin/FileSystem_Steam.dll
Resource
win10v2004-20260513-en
Behavioral task
behavioral32
Sample
bin/FileSystem_Steam.dll
Resource
win11ltsc2024-20260710-en
General
- Target Steam.dll
- Size 3.1MB
- Sample260823-d39sdsxtcs
- SHA256 5e8fc05d46546a756a49c8b535e8fe27b1e1340961548c77fa1ddfac744d35cc
- MD5 5acf0315804e74f8311eb4082d60492a
- SHA1 347735b24d842217b92be9d2379dda39d507d308
- SHA512 29803a6ac05070524aeb5f25ae1cbc7b3f68f898f1c0707c79b6a1f79d80b3c6efee5c285b99edef8979587857221629347e68b8c06e9dbf9d8628825a5fe5b1
- SSDEEP 49152:eLEqMm9azRUnt0hRUzmD3ZpbVm8uJrEEeNwzbGurXcMkpKWTvJ4wbvifcf:AkOaVUnt0hRUzE3zbVm/eNwz0pKW7
- TLSH T12DE55B25F793C070D74A05702CEDB77E66BEAE984E506F93B25CFE5D58B3181902B02A
- MD5 SHA1 SHA512 SSDEEP TLSH
Malware Config
Signatures
- Program crash 1 IoCs
pid pid_target Process procid_target 2792 4204 WerFault.exe 89 - 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 6056 wrote to memory of 4204 6056 rundll32.exe 89
Processes
-
C:\Windows\system32\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\Steam.dll,#11⤵
- Suspicious use of WriteProcessMemory
PID:6056 -
C:\Windows\SysWOW64\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\Steam.dll,#12⤵
- System Location Discovery: System Language Discovery
PID:4204 -
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 4204 -s 6163⤵
- Program crash
PID:2792
-
-
-
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 392 -p 4204 -ip 42041⤵PID:2200