Overview
overview
7Static
static
1SteamSetup.exe
windows11-21h2-x64
7$PLUGINSDI...ls.dll
windows11-21h2-x64
3$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
444s -
max time network
442s -
platform
windows11-21h2_x64 -
resource
win11-20250313-en -
resource tags
arch:x64arch:x86image:win11-20250313-enlocale:en-usos:windows11-21h2-x64system -
submitted
27/03/2025, 10:54
Static task
static1
Behavioral task
behavioral1
Sample
SteamSetup.exe
Resource
win11-20250313-en
Behavioral task
behavioral2
Sample
$PLUGINSDIR/StdUtils.dll
Resource
win11-20250313-en
Behavioral task
behavioral3
Sample
$PLUGINSDIR/System.dll
Resource
win11-20250314-en
Behavioral task
behavioral4
Sample
$PLUGINSDIR/nsDialogs.dll
Resource
win11-20250313-en
Behavioral task
behavioral5
Sample
$PLUGINSDIR/nsExec.dll
Resource
win11-20250314-en
Behavioral task
behavioral6
Sample
$PLUGINSDIR/nsProcess.dll
Resource
win11-20250313-en
Behavioral task
behavioral7
Sample
Steam.exe
Resource
win11-20250313-en
Behavioral task
behavioral8
Sample
bin/SteamService.exe
Resource
win11-20250313-en
Behavioral task
behavioral9
Sample
uninstall.exe
Resource
win11-20250314-en
Behavioral task
behavioral10
Sample
$PLUGINSDIR/LangDLL.dll
Resource
win11-20250314-en
Behavioral task
behavioral11
Sample
$PLUGINSDIR/ShellLink.dll
Resource
win11-20250314-en
Behavioral task
behavioral12
Sample
$PLUGINSDIR/nsExec.dll
Resource
win11-20250313-en
General
-
Target
$PLUGINSDIR/nsExec.dll
-
Size
17KB
-
MD5
2095af18c696968208315d4328a2b7fe
-
SHA1
b1b0e70c03724b2941e92c5098cc1fc0f2b51568
-
SHA256
3e2399ae5ce16dd69f7e2c71d928cf54a1024afced8155f1fd663a3e123d9226
-
SHA512
60105dfb1cd60b4048bd7b367969f36ed6bd29f92488ba8cfa862e31942fd529cbc58e8b0c738d91d8bef07c5902ce334e36c66eae1bfe104b44a159b5615ae5
-
SSDEEP
384:PbGgezxEqoyGgmkNFNyQH38E9VF6IYinAM+oZhc3iMy8:T31yGLkbMEpYinAMxZAy8
Malware Config
Signatures
-
Program crash 1 IoCs
pid pid_target Process procid_target 1468 8 WerFault.exe 78 -
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 3 IoCs
description pid Process procid_target PID 3028 wrote to memory of 8 3028 rundll32.exe 78 PID 3028 wrote to memory of 8 3028 rundll32.exe 78 PID 3028 wrote to memory of 8 3028 rundll32.exe 78
Processes
-
C:\Windows\system32\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\$PLUGINSDIR\nsExec.dll,#11⤵
- Suspicious use of WriteProcessMemory
PID:3028 -
C:\Windows\SysWOW64\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\$PLUGINSDIR\nsExec.dll,#12⤵
- System Location Discovery: System Language Discovery
PID:8 -
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 8 -s 4683⤵
- Program crash
PID:1468
-
-
-
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 8 -ip 81⤵PID:2320