1088c38976f5a7f857f502deb9e0bba7faeb962df17555a212abb4341774d4a7

Analysis

max time kernel
122s
max time network
123s
platform
windows7_x64
resource
win7-20240220-en
resource tags

arch:x64arch:x86image:win7-20240220-enlocale:en-usos:windows7-x64system
submitted
22-05-2024 03:24

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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

Processes:

regsvr32.exe

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

Suspicious use of WriteProcessMemory 7 IoCs

Processes:

regsvr32.exe

description	pid	process	target process
PID 2036 wrote to memory of 2028	2036	regsvr32.exe	regsvr32.exe
PID 2036 wrote to memory of 2028	2036	regsvr32.exe	regsvr32.exe
PID 2036 wrote to memory of 2028	2036	regsvr32.exe	regsvr32.exe
PID 2036 wrote to memory of 2028	2036	regsvr32.exe	regsvr32.exe
PID 2036 wrote to memory of 2028	2036	regsvr32.exe	regsvr32.exe
PID 2036 wrote to memory of 2028	2036	regsvr32.exe	regsvr32.exe
PID 2036 wrote to memory of 2028	2036	regsvr32.exe	regsvr32.exe

C:\Windows\system32\regsvr32.exe
regsvr32 /s C:\Users\Admin\AppData\Local\Temp\$PLUGINSDIR\dl.dll
1⤵
- Suspicious use of WriteProcessMemory
PID:2036

C:\Windows\SysWOW64\regsvr32.exe
/s C:\Users\Admin\AppData\Local\Temp\$PLUGINSDIR\dl.dll
2⤵
- Modifies registry class
PID:2028

Analysis

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General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Matrix

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