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
1561s -
max time network
1562s -
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/nsExec.dll
-
Size
6KB
-
MD5
c5b9fe538654a5a259cf64c2455c5426
-
SHA1
db45505fa041af025de53a0580758f3694b9444a
-
SHA256
7b51372117960e84d6f5eb3a26810cc044ff02283b3d656a0a456b0ab5cb8ea7
-
SHA512
f0f8a5570c01b16e54f47502e867ffbaf162b44a847c0ffc8062d20e9492114229de5d9d2a836da256fd3f9fb493536bdbf148d5308695b16c0e98d20d8926aa
-
SSDEEP
96:xr7fhfKaGgchPzxK6bq+pKX6D8ZLidGgmkNL38:xxbGgGPzxeX6D8ZyGgmkN
Malware Config
Signatures
-
Program crash 1 IoCs
pid pid_target Process procid_target 2544 1848 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 3012 wrote to memory of 1848 3012 rundll32.exe 30 PID 3012 wrote to memory of 1848 3012 rundll32.exe 30 PID 3012 wrote to memory of 1848 3012 rundll32.exe 30 PID 3012 wrote to memory of 1848 3012 rundll32.exe 30 PID 3012 wrote to memory of 1848 3012 rundll32.exe 30 PID 3012 wrote to memory of 1848 3012 rundll32.exe 30 PID 3012 wrote to memory of 1848 3012 rundll32.exe 30 PID 1848 wrote to memory of 2544 1848 rundll32.exe 31 PID 1848 wrote to memory of 2544 1848 rundll32.exe 31 PID 1848 wrote to memory of 2544 1848 rundll32.exe 31 PID 1848 wrote to memory of 2544 1848 rundll32.exe 31
Processes
-
C:\Windows\system32\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\$PLUGINSDIR\nsExec.dll,#11⤵
- Suspicious use of WriteProcessMemory
PID:3012 -
C:\Windows\SysWOW64\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\$PLUGINSDIR\nsExec.dll,#12⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1848 -
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 1848 -s 2243⤵
- Program crash
PID:2544
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