0b8b0d058bf18be4deef82a313f02b9abeec62b6cd4f66ce953b396dbdb0ac1b

General

Target

c7d348dea20098c156c405092d44b7d7.dll
Size

60KB
MD5

c7d348dea20098c156c405092d44b7d7
SHA1

3f8d31c50ed7b157e2dcfd5d464c9ec04ec4c309
SHA256

0b8b0d058bf18be4deef82a313f02b9abeec62b6cd4f66ce953b396dbdb0ac1b
SHA512

1e8972058a6a75bdc52b63f5f5b71cc81f9864184b22d2f8b315e3907b6ffc43dacc3e97e02603f2900695a1467ef8ff8ab518645fa3a06dd67870d1cc13303b
SSDEEP

768:wBV8CvGRQUTXIJlPOUNoGlbOOR5u68fZUyjBlD/k56WRCF7Rmg4cdsbMzXKgXy:w3v4QUEPO7G085wBIOF7IpcWM7ty

Score

6^/10

adware stealer

Malware Config

Signatures

Installs/modifies Browser Helper Object 2 TTPs 2 IoCs

BHOs are DLL modules which act as plugins for Internet Explorer.

stealer adware

Modify Registry

T1112

Browser Extensions

T1176

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Explorer\Browser Helper Objects\{7BA4C38C-6BE5-4F3C-980B-CEB48A777413}	regsvr32.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Explorer\Browser Helper Objects\{7BA4C38C-6BE5-4F3C-980B-CEB48A777413}\NoExplorer = "1"	regsvr32.exe

Program crash 1 IoCs

pid	pid_target	Process	procid_target
1808	384	WerFault.exe	88

Modifies Internet Explorer settings 1 TTPs 10 IoCs

adware spyware

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-275798769-4264537674-1142822080-1000\SOFTWARE\Microsoft\Internet Explorer\SearchScopes\{20C3857E-3A7A-48FF-8C16-8BAFFDF5EE77}\URL = "http://www.baidu.com/s?tn=leizhen_dg&ie=utf-8&wd={searchTerms}"	regsvr32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-275798769-4264537674-1142822080-1000\SOFTWARE\Microsoft\Internet Explorer\SearchScopes\{20C3857E-3A7A-48FF-8C16-8BAFFDF5EE77}\SuggestionsURL_JSON = "http://suggestion.baidu.com/su?wd={searchTerms}&action=opensearch&ie=utf-8&from=ie8"	regsvr32.exe
Key created	\REGISTRY\USER\S-1-5-21-275798769-4264537674-1142822080-1000\Software\Microsoft\Internet Explorer\SearchScopes\{6C08444C-B736-4C01-99A8-4CC9E59A9BC9}	regsvr32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-275798769-4264537674-1142822080-1000\SOFTWARE\Microsoft\Internet Explorer\SearchScopes\{6C08444C-B736-4C01-99A8-4CC9E59A9BC9}\DisplayName = "Google"	regsvr32.exe
Key created	\REGISTRY\USER\S-1-5-21-275798769-4264537674-1142822080-1000\Software\Microsoft\Internet Explorer\SearchScopes	regsvr32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-275798769-4264537674-1142822080-1000\SOFTWARE\Microsoft\Internet Explorer\SearchScopes\DefaultScope = "{20C3857E-3A7A-48FF-8C16-8BAFFDF5EE77}"	regsvr32.exe
Key deleted	\REGISTRY\USER\S-1-5-21-275798769-4264537674-1142822080-1000\SOFTWARE\Microsoft\Internet Explorer\SearchScopes\{0633EE93-D776-472f-A0FF-E1416B8B2E3A}	regsvr32.exe
Key created	\REGISTRY\USER\S-1-5-21-275798769-4264537674-1142822080-1000\Software\Microsoft\Internet Explorer\SearchScopes\{20C3857E-3A7A-48FF-8C16-8BAFFDF5EE77}	regsvr32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-275798769-4264537674-1142822080-1000\SOFTWARE\Microsoft\Internet Explorer\SearchScopes\{20C3857E-3A7A-48FF-8C16-8BAFFDF5EE77}\DisplayName = "°Ù¶È"	regsvr32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-275798769-4264537674-1142822080-1000\SOFTWARE\Microsoft\Internet Explorer\SearchScopes\{6C08444C-B736-4C01-99A8-4CC9E59A9BC9}\URL = "http://www.gggdu.com/google?q={searchTerms}"	regsvr32.exe

Modifies registry class 12 IoCs

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{871C5380-42A0-1069-A2EA-08002B30309D}\Shell\OpenHomePage\Command	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{871C5380-42A0-1069-A2EA-08002B30309D}	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{871C5380-42A0-1069-A2EA-08002B30309D}\shell\OpenHomePage	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{871C5380-42A0-1069-A2EA-08002B30309D}\shell\OpenHomePage\Command	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{7BA4C38C-6BE5-4F3C-980B-CEB48A777413}\InprocServer32	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{7BA4C38C-6BE5-4F3C-980B-CEB48A777413}	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{7BA4C38C-6BE5-4F3C-980B-CEB48A777413}\InprocServer32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\c7d348dea20098c156c405092d44b7d7.dll"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{871C5380-42A0-1069-A2EA-08002B30309D}\Shell	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{871C5380-42A0-1069-A2EA-08002B30309D}\Shell\OpenHomePage	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{871C5380-42A0-1069-A2EA-08002B30309D}\DefaultIcon	regsvr32.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 4804 wrote to memory of 384	4804	regsvr32.exe	88
PID 4804 wrote to memory of 384	4804	regsvr32.exe	88
PID 4804 wrote to memory of 384	4804	regsvr32.exe	88

C:\Windows\system32\regsvr32.exe
regsvr32 /s C:\Users\Admin\AppData\Local\Temp\c7d348dea20098c156c405092d44b7d7.dll
1⤵
- Suspicious use of WriteProcessMemory
PID:4804
- C:\Windows\SysWOW64\regsvr32.exe
  /s C:\Users\Admin\AppData\Local\Temp\c7d348dea20098c156c405092d44b7d7.dll
  2⤵
  - Installs/modifies Browser Helper Object
  - Modifies Internet Explorer settings
  - Modifies registry class
  PID:384
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 384 -s 880
    3⤵
    - Program crash
    PID:1808

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 384 -ip 384
1⤵
PID:1756

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Browser Extensions

1

T1176

Privilege Escalation

Defense Evasion

Modify Registry

2

T1112

Credential Access

Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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