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Overview
overview
10Static
static
10WeChatSetup.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
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
1WeChat.exe
windows7-x64
10WeChat.exe
windows10-2004-x64
10WechatAppLauncher.exe
windows7-x64
1WechatAppLauncher.exe
windows10-2004-x64
1[3.9.9.43]...dk.dll
windows7-x64
1[3.9.9.43]...dk.dll
windows10-2004-x64
1host/wmpf_...rt.dll
windows7-x64
1host/wmpf_...rt.dll
windows10-2004-x64
1host/wmpf_...64.dll
windows7-x64
1host/wmpf_...64.dll
windows10-2004-x64
1runtime/Co...on.dll
windows7-x64
1runtime/Co...on.dll
windows10-2004-x64
1runtime/ConfSdk.dll
windows7-x64
1runtime/ConfSdk.dll
windows10-2004-x64
1Analysis
-
max time kernel
118s -
max time network
125s -
platform
windows7_x64 -
resource
win7-20240220-en -
resource tags
arch:x64arch:x86image:win7-20240220-enlocale:en-usos:windows7-x64system -
submitted
16/03/2024, 10:26
Behavioral task
behavioral1
Sample
WeChatSetup.exe
Resource
win7-20240221-en
Behavioral task
behavioral2
Sample
WeChatSetup.exe
Resource
win10v2004-20240226-en
Behavioral task
behavioral3
Sample
$PLUGINSDIR/FindProcDLL.dll
Resource
win7-20240221-en
Behavioral task
behavioral4
Sample
$PLUGINSDIR/FindProcDLL.dll
Resource
win10v2004-20240226-en
Behavioral task
behavioral5
Sample
$PLUGINSDIR/System.dll
Resource
win7-20240221-en
Behavioral task
behavioral6
Sample
$PLUGINSDIR/System.dll
Resource
win10v2004-20240226-en
Behavioral task
behavioral7
Sample
$PLUGINSDIR/WeChatInstallDll.dll
Resource
win7-20240221-en
Behavioral task
behavioral8
Sample
$PLUGINSDIR/WeChatInstallDll.dll
Resource
win10v2004-20240226-en
Behavioral task
behavioral9
Sample
$PLUGINSDIR/nsInstallAssist.dll
Resource
win7-20240221-en
Behavioral task
behavioral10
Sample
$PLUGINSDIR/nsInstallAssist.dll
Resource
win10v2004-20240226-en
Behavioral task
behavioral11
Sample
Uninstall.exe
Resource
win7-20240221-en
Behavioral task
behavioral12
Sample
Uninstall.exe
Resource
win10v2004-20240226-en
Behavioral task
behavioral13
Sample
$PLUGINSDIR/FindProcDLL.dll
Resource
win7-20240221-en
Behavioral task
behavioral14
Sample
$PLUGINSDIR/FindProcDLL.dll
Resource
win10v2004-20240226-en
Behavioral task
behavioral15
Sample
$PLUGINSDIR/System.dll
Resource
win7-20231129-en
Behavioral task
behavioral16
Sample
$PLUGINSDIR/System.dll
Resource
win10v2004-20240226-en
Behavioral task
behavioral17
Sample
$PLUGINSDIR/WeChatInstallDll.dll
Resource
win7-20240220-en
Behavioral task
behavioral18
Sample
$PLUGINSDIR/WeChatInstallDll.dll
Resource
win10v2004-20240226-en
Behavioral task
behavioral19
Sample
WeChat.exe
Resource
win7-20240221-en
Behavioral task
behavioral20
Sample
WeChat.exe
Resource
win10v2004-20240226-en
Behavioral task
behavioral21
Sample
WechatAppLauncher.exe
Resource
win7-20240221-en
Behavioral task
behavioral22
Sample
WechatAppLauncher.exe
Resource
win10v2004-20240226-en
Behavioral task
behavioral23
Sample
[3.9.9.43]/ConfSdk.dll
Resource
win7-20240221-en
Behavioral task
behavioral24
Sample
[3.9.9.43]/ConfSdk.dll
Resource
win10v2004-20240226-en
Behavioral task
behavioral25
Sample
host/wmpf_host_export.dll
Resource
win7-20240221-en
Behavioral task
behavioral26
Sample
host/wmpf_host_export.dll
Resource
win10v2004-20240226-en
Behavioral task
behavioral27
Sample
host/wmpf_host_export_x64.dll
Resource
win7-20240221-en
Behavioral task
behavioral28
Sample
host/wmpf_host_export_x64.dll
Resource
win10v2004-20240226-en
Behavioral task
behavioral29
Sample
runtime/ComponentVerification.dll
Resource
win7-20240215-en
Behavioral task
behavioral30
Sample
runtime/ComponentVerification.dll
Resource
win10v2004-20231215-en
Behavioral task
behavioral31
Sample
runtime/ConfSdk.dll
Resource
win7-20240220-en
Behavioral task
behavioral32
Sample
runtime/ConfSdk.dll
Resource
win10v2004-20240226-en
General
-
Target
$PLUGINSDIR/WeChatInstallDll.dll
-
Size
3.6MB
-
MD5
91153d3fc0b835b072aeebc4d8837faf
-
SHA1
1e1e524be7c69077229973e385c447d9692ad937
-
SHA256
a7971bce47584535e9033f9d72d8f6f386c7d8deef3b93e11de50cf9574f7413
-
SHA512
2b49c6d701cc6f0d25a81258dcec2159ab3ea30389d18aadcc486c540f5daf6adedf998def1bf5c5fb4a5712755dbca710387c862a89138b23ec081682e835ec
-
SSDEEP
49152:IBTaBlUSRRWRgyuHaLF12pv55EW4AXO/hPsQIYmSXyfgY2YBlWPRGtTLJMK+u8GJ:IBTaBzIguwv/ShTXyfgClmG13+dTW
Malware Config
Signatures
-
Suspicious use of WriteProcessMemory 7 IoCs
description pid Process procid_target PID 2932 wrote to memory of 2928 2932 rundll32.exe 28 PID 2932 wrote to memory of 2928 2932 rundll32.exe 28 PID 2932 wrote to memory of 2928 2932 rundll32.exe 28 PID 2932 wrote to memory of 2928 2932 rundll32.exe 28 PID 2932 wrote to memory of 2928 2932 rundll32.exe 28 PID 2932 wrote to memory of 2928 2932 rundll32.exe 28 PID 2932 wrote to memory of 2928 2932 rundll32.exe 28
Processes
-
C:\Windows\system32\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\$PLUGINSDIR\WeChatInstallDll.dll,#11⤵
- Suspicious use of WriteProcessMemory
PID:2932 -
C:\Windows\SysWOW64\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\$PLUGINSDIR\WeChatInstallDll.dll,#12⤵PID:2928
-