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Overview
overview
6Static
static
3SteamSetup.exe
windows10-2004-x64
6$PLUGINSDI...ls.dll
windows10-2004-x64
3$PLUGINSDI...em.dll
windows10-2004-x64
3$PLUGINSDI...gs.dll
windows10-2004-x64
3$PLUGINSDI...ec.dll
windows10-2004-x64
3$PLUGINSDI...ss.dll
windows10-2004-x64
3Steam.exe
windows10-2004-x64
5bin/SteamService.exe
windows10-2004-x64
1uninstall.exe
windows10-2004-x64
4$PLUGINSDI...LL.dll
windows10-2004-x64
3$PLUGINSDI...nk.dll
windows10-2004-x64
3$PLUGINSDI...ec.dll
windows10-2004-x64
3Analysis
-
max time kernel
93s -
max time network
151s -
platform
windows10-2004_x64 -
resource
win10v2004-20231215-en -
resource tags
arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system -
submitted
13/02/2024, 20:28
Static task
static1
Behavioral task
behavioral1
Sample
SteamSetup.exe
Resource
win10v2004-20231215-en
Behavioral task
behavioral2
Sample
$PLUGINSDIR/StdUtils.dll
Resource
win10v2004-20231215-en
Behavioral task
behavioral3
Sample
$PLUGINSDIR/System.dll
Resource
win10v2004-20231215-en
Behavioral task
behavioral4
Sample
$PLUGINSDIR/nsDialogs.dll
Resource
win10v2004-20231215-en
Behavioral task
behavioral5
Sample
$PLUGINSDIR/nsExec.dll
Resource
win10v2004-20231215-en
Behavioral task
behavioral6
Sample
$PLUGINSDIR/nsProcess.dll
Resource
win10v2004-20231215-en
Behavioral task
behavioral7
Sample
Steam.exe
Resource
win10v2004-20231215-en
Behavioral task
behavioral8
Sample
bin/SteamService.exe
Resource
win10v2004-20231215-en
Behavioral task
behavioral9
Sample
uninstall.exe
Resource
win10v2004-20231222-en
Behavioral task
behavioral10
Sample
$PLUGINSDIR/LangDLL.dll
Resource
win10v2004-20231215-en
Behavioral task
behavioral11
Sample
$PLUGINSDIR/ShellLink.dll
Resource
win10v2004-20231215-en
Behavioral task
behavioral12
Sample
$PLUGINSDIR/nsExec.dll
Resource
win10v2004-20231215-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 2664 3224 WerFault.exe 83 -
Suspicious use of WriteProcessMemory 3 IoCs
description pid Process procid_target PID 376 wrote to memory of 3224 376 rundll32.exe 83 PID 376 wrote to memory of 3224 376 rundll32.exe 83 PID 376 wrote to memory of 3224 376 rundll32.exe 83
Processes
-
C:\Windows\system32\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\$PLUGINSDIR\nsExec.dll,#11⤵
- Suspicious use of WriteProcessMemory
PID:376 -
C:\Windows\SysWOW64\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\$PLUGINSDIR\nsExec.dll,#12⤵PID:3224
-
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 3224 -s 6123⤵
- Program crash
PID:2664
-
-
-
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 3224 -ip 32241⤵PID:4636