Analysis
- max time kernel
89s - max time network
148s - platform
windows10-2004_x64 - resource
win10v2004-20231215-en - resource tags
arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system - submitted
03/02/2024, 00:59
Static task
static1
1 signatures
Behavioral task
behavioral1
Sample
8afafc42f0f5523dda91933ed6f4e82a.dll
Resource
win7-20231129-en
3 signatures
150 seconds
General
- Target 8afafc42f0f5523dda91933ed6f4e82a.dll
- Size 12KB
- Sample240203-bcdwxsffbj
- SHA256 d48f1b4cba6f06a070763d061fc03d579a5b45a207bf7173f1629190338ea9ce
- MD5 8afafc42f0f5523dda91933ed6f4e82a
- SHA1 f5753a0ea737482f840418ac7e433313dd381c6d
- SHA512 febd2175d06a8d2f31781d721997d123478b365a4109112e66f8e56b00da142e6964637272aa92dbe839e7166ccc5b6b15a2bbe39c83cc4843e9c0a260522964
- SSDEEP 192:A2g0r0e8DPXD0sSfQ0SaKy+nsrp1psDC0RWvNDn:5NsAKytbpsDIv
- MD5 SHA1 SHA512 SSDEEP
Malware Config
Signatures
- Installs/modifies Browser Helper Object 2 TTPs 2 IoCs
BHOs are DLL modules which act as plugins for Internet Explorer.
description ioc Process Key created \REGISTRY\MACHINE\Software\WOW6432Node\Microsoft\Windows\CurrentVersion\Explorer\Browser Helper Objects\{1a1ddc19-5893-43ab-a73f-f41a0f34d115} regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Explorer\Browser Helper Objects\{1a1ddc19-5893-43ab-a73f-f41a0f34d115}\ regsvr32.exe - Modifies registry class 5 IoCs
description ioc Process Key created \REGISTRY\MACHINE\Software\Classes\WOW6432Node\CLSID\{1a1ddc19-5893-43ab-a73f-f41a0f34d115} regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{1a1ddc19-5893-43ab-a73f-f41a0f34d115}\ regsvr32.exe Key created \REGISTRY\MACHINE\Software\Classes\WOW6432Node\CLSID\{1a1ddc19-5893-43ab-a73f-f41a0f34d115}\InprocServer32 regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{1a1ddc19-5893-43ab-a73f-f41a0f34d115}\InprocServer32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\8afafc42f0f5523dda91933ed6f4e82a.dll" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{1a1ddc19-5893-43ab-a73f-f41a0f34d115}\InprocServer32\ThreadingModel = "Apartment" regsvr32.exe - Suspicious use of WriteProcessMemory 3 IoCs
description pid Process procid_target PID 960 wrote to memory of 4320 960 regsvr32.exe 87 PID 960 wrote to memory of 4320 960 regsvr32.exe 87 PID 960 wrote to memory of 4320 960 regsvr32.exe 87
Processes
-
C:\Windows\system32\regsvr32.exeregsvr32 /s C:\Users\Admin\AppData\Local\Temp\8afafc42f0f5523dda91933ed6f4e82a.dll1⤵
- Suspicious use of WriteProcessMemory
PID:960 -
C:\Windows\SysWOW64\regsvr32.exe/s C:\Users\Admin\AppData\Local\Temp\8afafc42f0f5523dda91933ed6f4e82a.dll2⤵
- Installs/modifies Browser Helper Object
- Modifies registry class
PID:4320
-