Overview
overview
6Static
static
3SteamSetup.exe
windows7-x64
6$PLUGINSDI...ls.dll
windows7-x64
3$PLUGINSDI...em.dll
windows7-x64
3$PLUGINSDI...gs.dll
windows7-x64
3$PLUGINSDI...ec.dll
windows7-x64
3$PLUGINSDI...ss.dll
windows7-x64
3Steam.exe
windows7-x64
3bin/SteamService.exe
windows7-x64
1uninstall.exe
windows7-x64
4$PLUGINSDI...LL.dll
windows7-x64
3$PLUGINSDI...nk.dll
windows7-x64
3$PLUGINSDI...ec.dll
windows7-x64
3Analysis
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max time kernel
1558s -
max time network
1558s -
platform
windows7_x64 -
resource
win7-20240903-en -
resource tags
arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system -
submitted
12-11-2024 17:28
Static task
static1
Behavioral task
behavioral1
Sample
SteamSetup.exe
Resource
win7-20241010-en
Behavioral task
behavioral2
Sample
$PLUGINSDIR/StdUtils.dll
Resource
win7-20241010-en
Behavioral task
behavioral3
Sample
$PLUGINSDIR/System.dll
Resource
win7-20240903-en
Behavioral task
behavioral4
Sample
$PLUGINSDIR/nsDialogs.dll
Resource
win7-20240903-en
Behavioral task
behavioral5
Sample
$PLUGINSDIR/nsExec.dll
Resource
win7-20240903-en
Behavioral task
behavioral6
Sample
$PLUGINSDIR/nsProcess.dll
Resource
win7-20240903-en
Behavioral task
behavioral7
Sample
Steam.exe
Resource
win7-20240903-en
Behavioral task
behavioral8
Sample
bin/SteamService.exe
Resource
win7-20240903-en
Behavioral task
behavioral9
Sample
uninstall.exe
Resource
win7-20240903-en
Behavioral task
behavioral10
Sample
$PLUGINSDIR/LangDLL.dll
Resource
win7-20240903-en
Behavioral task
behavioral11
Sample
$PLUGINSDIR/ShellLink.dll
Resource
win7-20241023-en
Behavioral task
behavioral12
Sample
$PLUGINSDIR/nsExec.dll
Resource
win7-20241010-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
pid pid_target Process procid_target 2352 2340 WerFault.exe 30 -
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 11 IoCs
description pid Process procid_target PID 2668 wrote to memory of 2340 2668 rundll32.exe 30 PID 2668 wrote to memory of 2340 2668 rundll32.exe 30 PID 2668 wrote to memory of 2340 2668 rundll32.exe 30 PID 2668 wrote to memory of 2340 2668 rundll32.exe 30 PID 2668 wrote to memory of 2340 2668 rundll32.exe 30 PID 2668 wrote to memory of 2340 2668 rundll32.exe 30 PID 2668 wrote to memory of 2340 2668 rundll32.exe 30 PID 2340 wrote to memory of 2352 2340 rundll32.exe 31 PID 2340 wrote to memory of 2352 2340 rundll32.exe 31 PID 2340 wrote to memory of 2352 2340 rundll32.exe 31 PID 2340 wrote to memory of 2352 2340 rundll32.exe 31
Processes
-
C:\Windows\system32\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\$PLUGINSDIR\System.dll,#11⤵
- Suspicious use of WriteProcessMemory
PID:2668 -
C:\Windows\SysWOW64\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\$PLUGINSDIR\System.dll,#12⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2340 -
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 2340 -s 2243⤵
- Program crash
PID:2352
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