Overview
overview
9Static
static
991vpn(3.5....pn.exe
windows7-x64
891vpn(3.5....pn.exe
windows10-2004-x64
891vpn(3.5....ce.dll
windows7-x64
191vpn(3.5....ce.dll
windows10-2004-x64
891vpn(3.5....xy.dll
windows7-x64
791vpn(3.5....xy.dll
windows10-2004-x64
791vpn(3.5....00.dll
windows7-x64
191vpn(3.5....00.dll
windows10-2004-x64
191vpn(3.5....00.dll
windows7-x64
391vpn(3.5....00.dll
windows10-2004-x64
391vpn(3.5....00.dll
windows7-x64
391vpn(3.5....00.dll
windows10-2004-x64
391vpn(3.5....er.exe
windows7-x64
891vpn(3.5....er.exe
windows10-2004-x64
891vpn(3.5....il.dll
windows7-x64
791vpn(3.5....il.dll
windows10-2004-x64
791vpn(3.5....CN.dll
windows7-x64
191vpn(3.5....CN.dll
windows10-2004-x64
1Analysis
-
max time kernel
106s -
max time network
154s -
platform
windows10-2004_x64 -
resource
win10v2004-20220901-en -
resource tags
arch:x64arch:x86image:win10v2004-20220901-enlocale:en-usos:windows10-2004-x64system -
submitted
27-11-2022 06:44
Behavioral task
behavioral1
Sample
91vpn(3.5.4)/91vpn/91vpn.exe
Resource
win7-20221111-en
Behavioral task
behavioral2
Sample
91vpn(3.5.4)/91vpn/91vpn.exe
Resource
win10v2004-20221111-en
Behavioral task
behavioral3
Sample
91vpn(3.5.4)/91vpn/appface.dll
Resource
win7-20221111-en
Behavioral task
behavioral4
Sample
91vpn(3.5.4)/91vpn/appface.dll
Resource
win10v2004-20221111-en
Behavioral task
behavioral5
Sample
91vpn(3.5.4)/91vpn/httpproxy.dll
Resource
win7-20221111-en
Behavioral task
behavioral6
Sample
91vpn(3.5.4)/91vpn/httpproxy.dll
Resource
win10v2004-20220812-en
Behavioral task
behavioral7
Sample
91vpn(3.5.4)/91vpn/mfc100.dll
Resource
win7-20220901-en
Behavioral task
behavioral8
Sample
91vpn(3.5.4)/91vpn/mfc100.dll
Resource
win10v2004-20220901-en
Behavioral task
behavioral9
Sample
91vpn(3.5.4)/91vpn/msvcp100.dll
Resource
win7-20220812-en
Behavioral task
behavioral10
Sample
91vpn(3.5.4)/91vpn/msvcp100.dll
Resource
win10v2004-20220812-en
Behavioral task
behavioral11
Sample
91vpn(3.5.4)/91vpn/msvcr100.dll
Resource
win7-20220812-en
Behavioral task
behavioral12
Sample
91vpn(3.5.4)/91vpn/msvcr100.dll
Resource
win10v2004-20220812-en
Behavioral task
behavioral13
Sample
91vpn(3.5.4)/91vpn/updater.exe
Resource
win7-20220812-en
Behavioral task
behavioral14
Sample
91vpn(3.5.4)/91vpn/updater.exe
Resource
win10v2004-20220901-en
Behavioral task
behavioral15
Sample
91vpn(3.5.4)/91vpn/vpnutil.dll
Resource
win7-20220812-en
Behavioral task
behavioral16
Sample
91vpn(3.5.4)/91vpn/vpnutil.dll
Resource
win10v2004-20220812-en
Behavioral task
behavioral17
Sample
91vpn(3.5.4)/91vpn/zh-CN.dll
Resource
win7-20220812-en
Behavioral task
behavioral18
Sample
91vpn(3.5.4)/91vpn/zh-CN.dll
Resource
win10v2004-20220812-en
General
-
Target
91vpn(3.5.4)/91vpn/mfc100.dll
-
Size
4.1MB
-
MD5
07bccdcc337d393d7db0b2f8fe200b3f
-
SHA1
5a02b227cb0a22a8e7884cd138c3e8568d083d94
-
SHA256
bf38dda13b938b49a4df72b6477342373ee6e151be12c25cb0c17662fcb4bcd4
-
SHA512
e5637727a549cf7b88f13474097a71200f0dfa511ecd55c5a42e5f53e9f86ce8b7ce763448830fd073e232876f7537bad96f2ced8d3159558778460264d07639
-
SSDEEP
98304:BZP0PvxMJfTcXPSo0akd+BPSLC4IEy+XNy136jCfsqLhDIJJGN8mFLOAkGkzdnEe:BZP2iIE80qLrHFLOyomFHKnPAG
Malware Config
Signatures
-
Suspicious use of WriteProcessMemory 3 IoCs
Processes:
rundll32.exedescription pid Process procid_target PID 2416 wrote to memory of 3096 2416 rundll32.exe 81 PID 2416 wrote to memory of 3096 2416 rundll32.exe 81 PID 2416 wrote to memory of 3096 2416 rundll32.exe 81
Processes
-
C:\Windows\system32\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\91vpn(3.5.4)\91vpn\mfc100.dll,#11⤵
- Suspicious use of WriteProcessMemory
PID:2416 -
C:\Windows\SysWOW64\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\91vpn(3.5.4)\91vpn\mfc100.dll,#12⤵PID:3096
-