Overview
overview
10Static
static
1SteamSetup.exe
windows11-21h2-x64
10$PLUGINSDI...ls.dll
windows11-21h2-x64
3$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
93s -
max time network
100s -
platform
windows11-21h2_x64 -
resource
win11-20241007-en -
resource tags
arch:x64arch:x86image:win11-20241007-enlocale:en-usos:windows11-21h2-x64system -
submitted
07-12-2024 23:35
Static task
static1
Behavioral task
behavioral1
Sample
SteamSetup.exe
Resource
win11-20241007-en
Behavioral task
behavioral2
Sample
$PLUGINSDIR/StdUtils.dll
Resource
win11-20241007-en
Behavioral task
behavioral3
Sample
$PLUGINSDIR/System.dll
Resource
win11-20241007-en
Behavioral task
behavioral4
Sample
$PLUGINSDIR/nsDialogs.dll
Resource
win11-20241007-en
Behavioral task
behavioral5
Sample
$PLUGINSDIR/nsExec.dll
Resource
win11-20241007-en
Behavioral task
behavioral6
Sample
$PLUGINSDIR/nsProcess.dll
Resource
win11-20241007-en
Behavioral task
behavioral7
Sample
Steam.exe
Resource
win11-20241007-en
Behavioral task
behavioral8
Sample
bin/SteamService.exe
Resource
win11-20241007-en
Behavioral task
behavioral9
Sample
uninstall.exe
Resource
win11-20241007-en
Behavioral task
behavioral10
Sample
$PLUGINSDIR/LangDLL.dll
Resource
win11-20241023-en
Behavioral task
behavioral11
Sample
$PLUGINSDIR/ShellLink.dll
Resource
win11-20241007-en
Behavioral task
behavioral12
Sample
$PLUGINSDIR/nsExec.dll
Resource
win11-20241007-en
General
-
Target
$PLUGINSDIR/nsDialogs.dll
-
Size
20KB
-
MD5
4e5bc4458afa770636f2806ee0a1e999
-
SHA1
76dcc64af867526f776ab9225e7f4fe076487765
-
SHA256
91a484dc79be64dd11bf5acb62c893e57505fcd8809483aa92b04f10d81f9de0
-
SHA512
b6f529073a943bddbcb30a57d62216c78fcc9a09424b51ac0824ebfb9cac6cae4211bda26522d6923bd228f244ed8c41656c38284c71867f65d425727dd70162
-
SSDEEP
384:ABSzm+t18pZ0WAg0RhIFgnGNyQH38E9VF6IYinAM+oZfNRoZk:NupZ/Ag0/T8MEpYinAMxZ7oW
Malware Config
Signatures
-
Program crash 1 IoCs
pid pid_target Process procid_target 2432 4140 WerFault.exe 77 -
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 3024 wrote to memory of 4140 3024 rundll32.exe 77 PID 3024 wrote to memory of 4140 3024 rundll32.exe 77 PID 3024 wrote to memory of 4140 3024 rundll32.exe 77
Processes
-
C:\Windows\system32\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\$PLUGINSDIR\nsDialogs.dll,#11⤵
- Suspicious use of WriteProcessMemory
PID:3024 -
C:\Windows\SysWOW64\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\$PLUGINSDIR\nsDialogs.dll,#12⤵
- System Location Discovery: System Language Discovery
PID:4140 -
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 4140 -s 5443⤵
- Program crash
PID:2432
-
-
-
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 4140 -ip 41401⤵PID:4204