Analysis
-
max time kernel
148s -
max time network
138s -
platform
windows10-1703_x64 -
resource
win10-20240221-en -
resource tags
arch:x64arch:x86image:win10-20240221-enlocale:en-usos:windows10-1703-x64system -
submitted
01-04-2024 17:45
Static task
static1
Behavioral task
behavioral1
Sample
CapCut_7267140873131950085_installer.exe
Resource
win10-20240221-en
Behavioral task
behavioral2
Sample
$PLUGINSDIR/BgWorker.dll
Resource
win10-20240221-en
Behavioral task
behavioral3
Sample
$PLUGINSDIR/System.dll
Resource
win10-20240221-en
Behavioral task
behavioral4
Sample
$PLUGINSDIR/deviceregister_shared.dll
Resource
win10-20240221-en
Behavioral task
behavioral5
Sample
$PLUGINSDIR/downloader_nsis_plugin.dll
Resource
win10-20240221-en
Behavioral task
behavioral6
Sample
$PLUGINSDIR/shell_downloader.dll
Resource
win10-20240221-en
General
-
Target
$PLUGINSDIR/BgWorker.dll
-
Size
2KB
-
MD5
33ec04738007e665059cf40bc0f0c22b
-
SHA1
4196759a922e333d9b17bda5369f14c33cd5e3bc
-
SHA256
50f735ab8f3473423e6873d628150bbc0777be7b4f6405247cddf22bb00fb6be
-
SHA512
2318b01f0c2f2f021a618ca3e6e5c24a94df5d00154766b77160203b8b0a177c8581c7b688ffe69be93a69bc7fd06b8a589844d42447f5060fb4bcf94d8a9aef
Malware Config
Signatures
-
Program crash 1 IoCs
Processes:
WerFault.exepid pid_target process target process 2156 4752 WerFault.exe rundll32.exe -
Suspicious use of WriteProcessMemory 3 IoCs
Processes:
rundll32.exedescription pid process target process PID 3172 wrote to memory of 4752 3172 rundll32.exe rundll32.exe PID 3172 wrote to memory of 4752 3172 rundll32.exe rundll32.exe PID 3172 wrote to memory of 4752 3172 rundll32.exe rundll32.exe
Processes
-
C:\Windows\system32\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\$PLUGINSDIR\BgWorker.dll,#11⤵
- Suspicious use of WriteProcessMemory
-
C:\Windows\SysWOW64\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\$PLUGINSDIR\BgWorker.dll,#12⤵
-
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 4752 -s 6243⤵
- Program crash