Overview
overview
6Static
static
3SteamSetup.exe
windows11-21h2-x64
6$PLUGINSDI...ls.dll
windows11-21h2-x64
3$PLUGINSDI...em.dll
windows11-21h2-x64
3$PLUGINSDI...gs.dll
windows11-21h2-x64
3$PLUGINSDI...ec.dll
windows11-21h2-x64
3$PLUGINSDI...ss.dll
windows11-21h2-x64
3Steam.exe
windows11-21h2-x64
1bin/SteamService.exe
windows11-21h2-x64
1uninstall.exe
windows11-21h2-x64
4$PLUGINSDI...LL.dll
windows11-21h2-x64
3$PLUGINSDI...nk.dll
windows11-21h2-x64
3$PLUGINSDI...ec.dll
windows11-21h2-x64
3Analysis
-
max time kernel
0s -
platform
windows11-21h2_x64 -
resource
win11-20231215-en -
resource tags
arch:x64arch:x86image:win11-20231215-enlocale:en-usos:windows11-21h2-x64system -
submitted
12-02-2024 17:58
Static task
static1
Behavioral task
behavioral1
Sample
SteamSetup.exe
Resource
win11-20231215-en
Behavioral task
behavioral2
Sample
$PLUGINSDIR/StdUtils.dll
Resource
win11-20231222-en
Behavioral task
behavioral3
Sample
$PLUGINSDIR/System.dll
Resource
win11-20231215-en
Behavioral task
behavioral4
Sample
$PLUGINSDIR/nsDialogs.dll
Resource
win11-20231215-en
Behavioral task
behavioral5
Sample
$PLUGINSDIR/nsExec.dll
Resource
win11-20231215-en
Behavioral task
behavioral6
Sample
$PLUGINSDIR/nsProcess.dll
Resource
win11-20231215-en
Behavioral task
behavioral7
Sample
Steam.exe
Resource
win11-20231222-en
Behavioral task
behavioral8
Sample
bin/SteamService.exe
Resource
win11-20231222-en
Behavioral task
behavioral9
Sample
uninstall.exe
Resource
win11-20231222-en
Behavioral task
behavioral10
Sample
$PLUGINSDIR/LangDLL.dll
Resource
win11-20231215-en
Behavioral task
behavioral11
Sample
$PLUGINSDIR/ShellLink.dll
Resource
win11-20231215-en
Behavioral task
behavioral12
Sample
$PLUGINSDIR/nsExec.dll
Resource
win11-20231215-en
General
-
Target
$PLUGINSDIR/System.dll
-
Size
11KB
-
MD5
a4dd044bcd94e9b3370ccf095b31f896
-
SHA1
17c78201323ab2095bc53184aa8267c9187d5173
-
SHA256
2e226715419a5882e2e14278940ee8ef0aa648a3ef7af5b3dc252674111962bc
-
SHA512
87335a43b9ca13e1300c7c23e702e87c669e2bcf4f6065f0c684fc53165e9c1f091cc4d79a3eca3910f0518d3b647120ac0be1a68eaade2e75eaa64adfc92c5a
-
SSDEEP
192:em24sihno00Wfl97nH6T2enXwWobpWBTU4VtHT7dmN35OlESl:m8QIl975eXqlWBrz7YLOlE
Malware Config
Signatures
-
Program crash 1 IoCs
Processes:
WerFault.exepid pid_target process target process 3124 1496 WerFault.exe rundll32.exe -
Suspicious use of WriteProcessMemory 3 IoCs
Processes:
rundll32.exedescription pid process target process PID 2332 wrote to memory of 1496 2332 rundll32.exe rundll32.exe PID 2332 wrote to memory of 1496 2332 rundll32.exe rundll32.exe PID 2332 wrote to memory of 1496 2332 rundll32.exe rundll32.exe
Processes
-
C:\Windows\system32\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\$PLUGINSDIR\System.dll,#11⤵
- Suspicious use of WriteProcessMemory
PID:2332 -
C:\Windows\SysWOW64\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\$PLUGINSDIR\System.dll,#12⤵PID:1496
-
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 1496 -s 4603⤵
- Program crash
PID:3124
-
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 1496 -ip 14961⤵PID:3680