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
7s -
max time network
44s -
platform
windows7_x64 -
resource
win7-20240704-en -
resource tags
arch:x64arch:x86image:win7-20240704-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/System.dll
-
Size
11KB
-
MD5
ca332bb753b0775d5e806e236ddcec55
-
SHA1
f35ef76592f20850baef2ebbd3c9a2cfb5ad8d8f
-
SHA256
df5ae79fa558dc7af244ec6e53939563b966e7dbd8867e114e928678dbd56e5d
-
SHA512
2de0956a1ad58ad7086e427e89b819089f2a7f1e4133ed2a0a736adc0614e8588ebe2d97f1b59ab8886d662aeb40e0b4838c6a65fbfc652253e3a45664a03a00
-
SSDEEP
192:eo24sihno00Wfl97nH6T2enXwWobpWBTU4VtHT7dmN35Ol6Sl:k8QIl975eXqlWBrz7YLOl6
Malware Config
Signatures
-
Program crash 1 IoCs
pid pid_target Process procid_target 856 2952 WerFault.exe 29 -
Suspicious use of WriteProcessMemory 11 IoCs
description pid Process procid_target PID 3064 wrote to memory of 2952 3064 rundll32.exe 29 PID 3064 wrote to memory of 2952 3064 rundll32.exe 29 PID 3064 wrote to memory of 2952 3064 rundll32.exe 29 PID 3064 wrote to memory of 2952 3064 rundll32.exe 29 PID 3064 wrote to memory of 2952 3064 rundll32.exe 29 PID 3064 wrote to memory of 2952 3064 rundll32.exe 29 PID 3064 wrote to memory of 2952 3064 rundll32.exe 29 PID 2952 wrote to memory of 856 2952 rundll32.exe 30 PID 2952 wrote to memory of 856 2952 rundll32.exe 30 PID 2952 wrote to memory of 856 2952 rundll32.exe 30 PID 2952 wrote to memory of 856 2952 rundll32.exe 30
Processes
-
C:\Windows\system32\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\$PLUGINSDIR\System.dll,#11⤵
- Suspicious use of WriteProcessMemory
PID:3064 -
C:\Windows\SysWOW64\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\$PLUGINSDIR\System.dll,#12⤵
- Suspicious use of WriteProcessMemory
PID:2952 -
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 2952 -s 2283⤵
- Program crash
PID:856
-
-