Overview
overview
7Static
static
3qbittorren...up.exe
windows11-21h2-x64
7$PLUGINSDI...LL.dll
windows11-21h2-x64
3$PLUGINSDI...LL.dll
windows11-21h2-x64
3$PLUGINSDI...em.dll
windows11-21h2-x64
3$PLUGINSDIR/UAC.dll
windows11-21h2-x64
3$PLUGINSDI...gs.dll
windows11-21h2-x64
3$PLUGINSDI...lW.dll
windows11-21h2-x64
3qbittorrent.exe
windows11-21h2-x64
1Analysis
- max time kernel
127s - platform
windows11-21h2_x64 - resource
win11-20260513-en - resource tags
arch:x64arch:x86image:win11-20260513-enlocale:en-usos:windows11-21h2-x64systemwindows - submitted
06/08/2026, 04:32
Static task
static1
Behavioral task
behavioral1
Sample
qbittorrent_5.2.3_x64_setup.exe
Resource
win11-20260513-en
Behavioral task
behavioral2
Sample
$PLUGINSDIR/FindProcDLL.dll
Resource
win11-20260513-en
Behavioral task
behavioral3
Sample
$PLUGINSDIR/LangDLL.dll
Resource
win11-20260513-en
Behavioral task
behavioral4
Sample
$PLUGINSDIR/System.dll
Resource
win11-20260513-en
Behavioral task
behavioral5
Sample
$PLUGINSDIR/UAC.dll
Resource
win11-20260513-en
Behavioral task
behavioral6
Sample
$PLUGINSDIR/nsDialogs.dll
Resource
win11-20260513-en
Behavioral task
behavioral7
Sample
$PLUGINSDIR/nsisFirewallW.dll
Resource
win11-20260513-en
Behavioral task
behavioral8
Sample
qbittorrent.exe
Resource
win11-20260513-en
General
- Target $PLUGINSDIR/nsisFirewallW.dll
- Size 8KB
- Sample260806-e6ebbsx1d1
- SHA256 53be5716ad80945cb99681d5dbda60492f5dfb206fbfdb776b769b3eeb18d2c2
- MD5 f5bf81a102de52a4add21b8a367e54e0
- SHA1 cf1e76ffe4a3ecd4dad453112afd33624f16751c
- SHA512 6e280a75f706474ad31b2ce770fa34f54cb598528fac4477c466200a608b79c0f9b84011545595d9ba94331ad08e2f51bd42de91f92379db27686a28ba351256
- SSDEEP 96:8SMPv+eLDUDp+weLv2lstU+0IgNB2Aa20kdArfOwJKbFrMiRsuHdRYL:wnxLDUwp6sgN2RDrzJMMmsuYL
- TLSH T16DF1F936B7E18171C26F02B09F4F569DE1F8E66067E0013377628B5D2EB029DE836526
- MD5 SHA1 SHA512 SSDEEP TLSH
Malware Config
Signatures
- Program crash 1 IoCs
pid pid_target Process procid_target 4476 3712 WerFault.exe 81 - 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 1 IoCs
description pid Process procid_target PID 5016 wrote to memory of 3712 5016 rundll32.exe 81
Processes
-
C:\Windows\system32\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\$PLUGINSDIR\nsisFirewallW.dll,#11⤵
- Suspicious use of WriteProcessMemory
PID:5016 -
C:\Windows\SysWOW64\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\$PLUGINSDIR\nsisFirewallW.dll,#12⤵
- System Location Discovery: System Language Discovery
PID:3712 -
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 3712 -s 4603⤵
- Program crash
PID:4476
-
-
-
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 3712 -ip 37121⤵PID:1680