Overview
overview
9Static
static
7WeChatSetup.exe
windows7-x64
4WeChatSetup.exe
windows10-2004-x64
4$PLUGINSDI...LL.dll
windows7-x64
3$PLUGINSDI...LL.dll
windows10-2004-x64
3$PLUGINSDI...em.dll
windows7-x64
3$PLUGINSDI...em.dll
windows10-2004-x64
3$PLUGINSDI...ll.dll
windows7-x64
1$PLUGINSDI...ll.dll
windows10-2004-x64
1$PLUGINSDI...st.dll
windows7-x64
3$PLUGINSDI...st.dll
windows10-2004-x64
3Uninstall.exe
windows7-x64
4Uninstall.exe
windows10-2004-x64
4WeChat.exe
windows7-x64
9WeChat.exe
windows10-2004-x64
9WechatAppLauncher.exe
windows7-x64
1WechatAppLauncher.exe
windows10-2004-x64
1[3.9.11.19...dk.dll
windows7-x64
1[3.9.11.19...dk.dll
windows10-2004-x64
1[3.9.11.19...ll.exe
windows7-x64
4[3.9.11.19...ll.exe
windows10-2004-x64
4[3.9.11.19...ne.dll
windows7-x64
1[3.9.11.19...ne.dll
windows10-2004-x64
1[3.9.11.19...at.exe
windows7-x64
9[3.9.11.19...at.exe
windows10-2004-x64
9[3.9.11.19...xt.exe
windows7-x64
1[3.9.11.19...xt.exe
windows10-2004-x64
3[3.9.11.19...ce.dll
windows7-x64
1[3.9.11.19...ce.dll
windows10-2004-x64
1[3.9.11.19...pt.exe
windows7-x64
3[3.9.11.19...pt.exe
windows10-2004-x64
3[3.9.11.19...te.exe
windows7-x64
3[3.9.11.19...te.exe
windows10-2004-x64
3Analysis
-
max time kernel
0s -
max time network
19s -
platform
windows7_x64 -
resource
win7-20240705-en -
resource tags
arch:x64arch:x86image:win7-20240705-enlocale:en-usos:windows7-x64system -
submitted
10-07-2024 05:35
Behavioral task
behavioral1
Sample
WeChatSetup.exe
Resource
win7-20240705-en
Behavioral task
behavioral2
Sample
WeChatSetup.exe
Resource
win10v2004-20240709-en
Behavioral task
behavioral3
Sample
$PLUGINSDIR/FindProcDLL.dll
Resource
win7-20240705-en
Behavioral task
behavioral4
Sample
$PLUGINSDIR/FindProcDLL.dll
Resource
win10v2004-20240709-en
Behavioral task
behavioral5
Sample
$PLUGINSDIR/System.dll
Resource
win7-20240704-en
Behavioral task
behavioral6
Sample
$PLUGINSDIR/System.dll
Resource
win10v2004-20240704-en
Behavioral task
behavioral7
Sample
$PLUGINSDIR/WeChatInstallDll.dll
Resource
win7-20240705-en
Behavioral task
behavioral8
Sample
$PLUGINSDIR/WeChatInstallDll.dll
Resource
win10v2004-20240709-en
Behavioral task
behavioral9
Sample
$PLUGINSDIR/nsInstallAssist.dll
Resource
win7-20240705-en
Behavioral task
behavioral10
Sample
$PLUGINSDIR/nsInstallAssist.dll
Resource
win10v2004-20240709-en
Behavioral task
behavioral11
Sample
Uninstall.exe
Resource
win7-20240704-en
Behavioral task
behavioral12
Sample
Uninstall.exe
Resource
win10v2004-20240709-en
Behavioral task
behavioral13
Sample
WeChat.exe
Resource
win7-20240704-en
Behavioral task
behavioral14
Sample
WeChat.exe
Resource
win10v2004-20240709-en
Behavioral task
behavioral15
Sample
WechatAppLauncher.exe
Resource
win7-20240708-en
Behavioral task
behavioral16
Sample
WechatAppLauncher.exe
Resource
win10v2004-20240709-en
Behavioral task
behavioral17
Sample
[3.9.11.19]/ConfSdk.dll
Resource
win7-20240704-en
Behavioral task
behavioral18
Sample
[3.9.11.19]/ConfSdk.dll
Resource
win10v2004-20240704-en
Behavioral task
behavioral19
Sample
[3.9.11.19]/Uninstall.exe
Resource
win7-20240705-en
Behavioral task
behavioral20
Sample
[3.9.11.19]/Uninstall.exe
Resource
win10v2004-20240709-en
Behavioral task
behavioral21
Sample
[3.9.11.19]/VoipEngine.dll
Resource
win7-20240704-en
Behavioral task
behavioral22
Sample
[3.9.11.19]/VoipEngine.dll
Resource
win10v2004-20240709-en
Behavioral task
behavioral23
Sample
[3.9.11.19]/WeChat.exe
Resource
win7-20240704-en
Behavioral task
behavioral24
Sample
[3.9.11.19]/WeChat.exe
Resource
win10v2004-20240709-en
Behavioral task
behavioral25
Sample
[3.9.11.19]/WeChatExt.exe
Resource
win7-20240704-en
Behavioral task
behavioral26
Sample
[3.9.11.19]/WeChatExt.exe
Resource
win10v2004-20240709-en
Behavioral task
behavioral27
Sample
[3.9.11.19]/WeChatResource.dll
Resource
win7-20240705-en
Behavioral task
behavioral28
Sample
[3.9.11.19]/WeChatResource.dll
Resource
win10v2004-20240709-en
Behavioral task
behavioral29
Sample
[3.9.11.19]/WeChatSpt.exe
Resource
win7-20240708-en
Behavioral task
behavioral30
Sample
[3.9.11.19]/WeChatSpt.exe
Resource
win10v2004-20240709-en
Behavioral task
behavioral31
Sample
[3.9.11.19]/WeChatUpdate.exe
Resource
win7-20240705-en
Behavioral task
behavioral32
Sample
[3.9.11.19]/WeChatUpdate.exe
Resource
win10v2004-20240709-en
General
-
Target
$PLUGINSDIR/nsInstallAssist.dll
-
Size
192KB
-
MD5
28b411f3793dbcb81d6f3d3b0527cdba
-
SHA1
7614310be1231850e811a818f58ee8b54ae9ceaf
-
SHA256
0281e384c94cad29fd8279c1855f671c2dd1f7772cf5645f573dd1df2b3bd127
-
SHA512
e5c9f21e9838eca54a8ededb1bf279453e116b6cde629a75ad057b6438deec6bcacf6e27a81c8aa0fc732f26dc28cee7a006ba6d68c08846b92937e388349d78
-
SSDEEP
3072:tYglJRVqBh6wpVwGs5m5tEA346FO5F3zyY7IZGptOq5LSx/tcDa:FdqBhbWCuFpyq5SXya
Malware Config
Signatures
-
Program crash 1 IoCs
pid pid_target Process procid_target 2312 2204 WerFault.exe 30 -
Suspicious use of WriteProcessMemory 11 IoCs
description pid Process procid_target PID 2180 wrote to memory of 2204 2180 rundll32.exe 30 PID 2180 wrote to memory of 2204 2180 rundll32.exe 30 PID 2180 wrote to memory of 2204 2180 rundll32.exe 30 PID 2180 wrote to memory of 2204 2180 rundll32.exe 30 PID 2180 wrote to memory of 2204 2180 rundll32.exe 30 PID 2180 wrote to memory of 2204 2180 rundll32.exe 30 PID 2180 wrote to memory of 2204 2180 rundll32.exe 30 PID 2204 wrote to memory of 2312 2204 rundll32.exe 31 PID 2204 wrote to memory of 2312 2204 rundll32.exe 31 PID 2204 wrote to memory of 2312 2204 rundll32.exe 31 PID 2204 wrote to memory of 2312 2204 rundll32.exe 31
Processes
-
C:\Windows\system32\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\$PLUGINSDIR\nsInstallAssist.dll,#11⤵
- Suspicious use of WriteProcessMemory
PID:2180 -
C:\Windows\SysWOW64\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\$PLUGINSDIR\nsInstallAssist.dll,#12⤵
- Suspicious use of WriteProcessMemory
PID:2204 -
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 2204 -s 2243⤵
- Program crash
PID:2312
-
-