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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
128s -
max time network
165s -
platform
windows10-2004_x64 -
resource
win10v2004-20240226-en -
resource tags
arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-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
2acb0c1f4f388e1dd5be9a01c9593185
-
SHA1
4700a4c989ef847f0bf39c907d08968003ec5942
-
SHA256
749fb2d7f65cfad8928a842d1103c22dab3239296472947798504b15858422ba
-
SHA512
fcba0b51326ead208db123c17118c452082fdcff9379328c5b4c0825d4039de80932cab8c38a2b7f95955907ce1a92bba4021e7e48bab7988991088cf7189f7b
-
SSDEEP
49152:OGHSauEm8jA+ZojaXvP3WW43XOYlZiz2yNyc0yfgWFbxq/WPyZuTJGeXMK+u80e8:OGHSabb7ZB/P2l+0yfgO0/FZPeV+d03
Malware Config
Signatures
-
Suspicious use of WriteProcessMemory 3 IoCs
description pid Process procid_target PID 3692 wrote to memory of 928 3692 rundll32.exe 90 PID 3692 wrote to memory of 928 3692 rundll32.exe 90 PID 3692 wrote to memory of 928 3692 rundll32.exe 90
Processes
-
C:\Windows\system32\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\$PLUGINSDIR\WeChatInstallDll.dll,#11⤵
- Suspicious use of WriteProcessMemory
PID:3692 -
C:\Windows\SysWOW64\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\$PLUGINSDIR\WeChatInstallDll.dll,#12⤵PID:928
-