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
147s -
max time network
156s -
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/StdUtils.dll
-
Size
110KB
-
MD5
db11ab4828b429a987e7682e495c1810
-
SHA1
29c2c2069c4975c90789dc6d3677b4b650196561
-
SHA256
c602c44a4d4088dbf5a659f36ba1c3a9d81f8367577de0cb940c0b8afee5c376
-
SHA512
460d1ccfc0d7180eae4e6f1a326d175fec78a7d6014447a9a79b6df501fa05cd4bd90f8f7a85b7b6a4610e2fa7059e30ae6e17bc828d370e5750de9b40b9ae88
-
SSDEEP
1536:cyy+HcFWrX52XWcS15c4DBVOw/bEQvWt6uouMw5m0mhdBu4NpBTvO7Fvo6mVS6oz:fy+8ozImcSNd1YHbMbCk/S
Malware Config
Signatures
-
Program crash 1 IoCs
pid pid_target Process procid_target 4672 2092 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 3464 wrote to memory of 2092 3464 rundll32.exe 77 PID 3464 wrote to memory of 2092 3464 rundll32.exe 77 PID 3464 wrote to memory of 2092 3464 rundll32.exe 77
Processes
-
C:\Windows\system32\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\$PLUGINSDIR\StdUtils.dll,#11⤵
- Suspicious use of WriteProcessMemory
PID:3464 -
C:\Windows\SysWOW64\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\$PLUGINSDIR\StdUtils.dll,#12⤵
- System Location Discovery: System Language Discovery
PID:2092 -
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 2092 -s 5163⤵
- Program crash
PID:4672
-
-
-
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 412 -p 2092 -ip 20921⤵PID:740