247a1537eb82f6b97c6a05fb3eab3311e28e3d2f33bead4f2573bf5c9bcc09b5

Analysis

max time kernel
118s
max time network
120s
platform
windows7_x64
resource
win7-20231129-en
resource tags

arch:x64arch:x86image:win7-20231129-enlocale:en-usos:windows7-x64system
submitted
04-02-2024 02:53

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General

Target

$PLUGINSDIR/dl.dll
Size

1.9MB
MD5

763b532d651f0ad5e135d9b57bf4fba4
SHA1

23f1302f904a67a1fe0d48e11a435c2f36336196
SHA256

50b3c45ede6fd2d77c4f040242b2174289767b18a3a084e7046133b05f93e173
SHA512

a4ec0f5bfa30d3558935f4075a75aebf080ece324a550c573d8a424730693b030cd26b4862973e8da8937e610c287d64e96c2fd952b59324ed1822919a00737c
SSDEEP

49152:asQTyFBNJLMNHH/5ubZheqUrmgg0UFPbTeR0qcBig:MEG3ubZhQmgg0UWu

Score

1^/10

Malware Config

Signatures

Modifies registry class 35 IoCs

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\BaiduDl.BaiduDownload\CLSID\ = "{AF6C6F71-5822-463A-8CA1-EA496D0CA2C7}"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{AF6C6F71-5822-463A-8CA1-EA496D0CA2C7}	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{AF6C6F71-5822-463A-8CA1-EA496D0CA2C7}\ProgID\ = "BaiduDl.BaiduDownload.1"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{AF6C6F71-5822-463A-8CA1-EA496D0CA2C7}\AppID = "{B85AFBF6-2E43-4F13-8AAE-332C9A18A866}"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{362B8108-62ED-4F80-BC1D-FE904A262CE2}\1.0\FLAGS	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{362B8108-62ED-4F80-BC1D-FE904A262CE2}\1.0\0\win32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\$PLUGINSDIR\\dl.dll"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\BaiduDl.BaiduDownload.1\CLSID\ = "{AF6C6F71-5822-463A-8CA1-EA496D0CA2C7}"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\BaiduDl.BaiduDownload	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{362B8108-62ED-4F80-BC1D-FE904A262CE2}\1.0\ = "BaiduDl 1.0 ÀàÐÍ¿â"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{362B8108-62ED-4F80-BC1D-FE904A262CE2}\1.0\HELPDIR\	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\BaiduDl.BaiduDownload\ = "BaiduDownload Class"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{AF6C6F71-5822-463A-8CA1-EA496D0CA2C7}\InprocServer32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\$PLUGINSDIR\\dl.dll"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{AF6C6F71-5822-463A-8CA1-EA496D0CA2C7}\InprocServer32	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\AppID\BaiduDl.DLL\AppID = "{B85AFBF6-2E43-4F13-8AAE-332C9A18A866}"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{AF6C6F71-5822-463A-8CA1-EA496D0CA2C7}\VersionIndependentProgID\ = "BaiduDl.BaiduDownload"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{362B8108-62ED-4F80-BC1D-FE904A262CE2}\1.0\0	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\BaiduDl.BaiduDownload.1\CLSID	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{362B8108-62ED-4F80-BC1D-FE904A262CE2}	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{362B8108-62ED-4F80-BC1D-FE904A262CE2}\1.0	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{AF6C6F71-5822-463A-8CA1-EA496D0CA2C7}\TypeLib\ = "{25BD9BB7-33EC-4220-B725-56C470146288}"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{362B8108-62ED-4F80-BC1D-FE904A262CE2}\1.0\0\win32	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\BaiduDl.BaiduDownload\CurVer	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{AF6C6F71-5822-463A-8CA1-EA496D0CA2C7}\ProgID	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{AF6C6F71-5822-463A-8CA1-EA496D0CA2C7}\TypeLib	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{362B8108-62ED-4F80-BC1D-FE904A262CE2}\1.0\HELPDIR	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\BaiduDl.BaiduDownload\CurVer\ = "BaiduDl.BaiduDownload.1"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{AF6C6F71-5822-463A-8CA1-EA496D0CA2C7}\ = "BaiduDownload Class"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\AppID\BaiduDl.DLL	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\BaiduDl.BaiduDownload.1	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\BaiduDl.BaiduDownload.1\ = "BaiduDownload Class"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\BaiduDl.BaiduDownload\CLSID	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{AF6C6F71-5822-463A-8CA1-EA496D0CA2C7}\VersionIndependentProgID	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{362B8108-62ED-4F80-BC1D-FE904A262CE2}\1.0\FLAGS\ = "0"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\AppID\{B85AFBF6-2E43-4F13-8AAE-332C9A18A866}	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\AppID\{B85AFBF6-2E43-4F13-8AAE-332C9A18A866}\ = "BaiduDl"	regsvr32.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 1632 wrote to memory of 1188	1632	regsvr32.exe	21
PID 1632 wrote to memory of 1188	1632	regsvr32.exe	21
PID 1632 wrote to memory of 1188	1632	regsvr32.exe	21
PID 1632 wrote to memory of 1188	1632	regsvr32.exe	21
PID 1632 wrote to memory of 1188	1632	regsvr32.exe	21
PID 1632 wrote to memory of 1188	1632	regsvr32.exe	21
PID 1632 wrote to memory of 1188	1632	regsvr32.exe	21

C:\Windows\system32\regsvr32.exe
regsvr32 /s C:\Users\Admin\AppData\Local\Temp\$PLUGINSDIR\dl.dll
1⤵
- Suspicious use of WriteProcessMemory
PID:1632
- C:\Windows\SysWOW64\regsvr32.exe
  /s C:\Users\Admin\AppData\Local\Temp\$PLUGINSDIR\dl.dll
  2⤵
  - Modifies registry class
  PID:1188

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Malware Config

Signatures

Processes

Network

MITRE ATT&CK Matrix

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