b8a7551f5324f9a62c96d7b24c7cd69e44b402dafcebfb2bff63308ede29579e

Analysis

max time kernel
42s
max time network
47s
platform
windows7_x64
resource
win7-20220901-en
resource tags

arch:x64arch:x86image:win7-20220901-enlocale:en-usos:windows7-x64system
submitted
04/12/2022, 00:02

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General

Target

b8a7551f5324f9a62c96d7b24c7cd69e44b402dafcebfb2bff63308ede29579e.dll
Size

195KB
MD5

7d1caaa50ab3455492820694e40ed594
SHA1

9a8d9f920afe2d6d6c8a1c40f5beff5ed9986e42
SHA256

b8a7551f5324f9a62c96d7b24c7cd69e44b402dafcebfb2bff63308ede29579e
SHA512

cdec89c1c31e6a8514b18a25c58a404b07ac5142a8280f60c09376fc4890c5ac9100036e3d615c979bdcd2219c7331e8b59becda549fdd736b225455b7443f15
SSDEEP

1536:Any66oS9l8tZ602P0UGfIV+zv/0I9Q4pP8EHn+ZnRE6B81Rufsluy1y/Vig3:SyWce2P0UGfIkzvXaLy1y/l3

Score

6^/10

adware stealer

Malware Config

Signatures

Installs/modifies Browser Helper Object 2 TTPs 1 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\{757A1AA2-FF86-47D8-85BF-4D899A822467}	regsvr32.exe

Modifies registry class 42 IoCs

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{757A1AA2-FF86-47D8-85BF-4D899A822467}\VersionIndependentProgID	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{757A1AA8-FF86-47D8-85BF-4D899A822467}\1.0\0\win32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\b8a7551f5324f9a62c96d7b24c7cd69e44b402dafcebfb2bff63308ede29579e.dll"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{757A1AA1-FF86-47D8-85BF-4D899A822467}\ProxyStubClsid32\ = "{00020424-0000-0000-C000-000000000046}"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{757A1AA2-FF86-47D8-85BF-4D899A822467}\ = "IEHlprObj Class"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{757A1AA2-FF86-47D8-85BF-4D899A822467}\ProgID	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{757A1AA2-FF86-47D8-85BF-4D899A822467}\InprocServer32	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{757A1AA8-FF86-47D8-85BF-4D899A822467}	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{757A1AA1-FF86-47D8-85BF-4D899A822467}	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\IEHlprObj.IEHlprObj	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{757A1AA2-FF86-47D8-85BF-4D899A822467}	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{757A1AA8-FF86-47D8-85BF-4D899A822467}\1.0\FLAGS	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{757A1AA8-FF86-47D8-85BF-4D899A822467}\1.0\FLAGS\ = "0"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{757A1AA1-FF86-47D8-85BF-4D899A822467}\TypeLib\Version = "1.0"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{757A1AA1-FF86-47D8-85BF-4D899A822467}	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{757A1AA2-FF86-47D8-85BF-4D899A822467}\ProgID\ = "IEHlprObj.IEHlprObj.1"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{757A1AA2-FF86-47D8-85BF-4D899A822467}\InprocServer32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\b8a7551f5324f9a62c96d7b24c7cd69e44b402dafcebfb2bff63308ede29579e.dll"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{757A1AA8-FF86-47D8-85BF-4D899A822467}\1.0\HELPDIR	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{757A1AA1-FF86-47D8-85BF-4D899A822467}\TypeLib\ = "{757A1AA8-FF86-47D8-85BF-4D899A822467}"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{757A1AA1-FF86-47D8-85BF-4D899A822467}\TypeLib\ = "{757A1AA8-FF86-47D8-85BF-4D899A822467}"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{757A1AA1-FF86-47D8-85BF-4D899A822467}\TypeLib\Version = "1.0"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\IEHlprObj.IEHlprObj.1\ = "IEHlprObj Class"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\IEHlprObj.IEHlprObj\CurVer\ = "IEHlprObj.IEHlprObj.1"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{757A1AA1-FF86-47D8-85BF-4D899A822467}\TypeLib	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{757A1AA1-FF86-47D8-85BF-4D899A822467}\ = "IIEHlprObj"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{757A1AA1-FF86-47D8-85BF-4D899A822467}\ProxyStubClsid32	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\IEHlprObj.IEHlprObj.1	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{757A1AA2-FF86-47D8-85BF-4D899A822467}\VersionIndependentProgID\ = "IEHlprObj.IEHlprObj"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{757A1AA2-FF86-47D8-85BF-4D899A822467}\Programmable	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{757A1AA8-FF86-47D8-85BF-4D899A822467}\1.0	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{757A1AA8-FF86-47D8-85BF-4D899A822467}\1.0\0	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{757A1AA8-FF86-47D8-85BF-4D899A822467}\1.0\HELPDIR\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{757A1AA1-FF86-47D8-85BF-4D899A822467}\ = "IIEHlprObj"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{757A1AA1-FF86-47D8-85BF-4D899A822467}\ProxyStubClsid32	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\IEHlprObj.IEHlprObj.1\CLSID	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\IEHlprObj.IEHlprObj\CurVer	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{757A1AA2-FF86-47D8-85BF-4D899A822467}\InprocServer32\ThreadingModel = "Apartment"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{757A1AA8-FF86-47D8-85BF-4D899A822467}\1.0\0\win32	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{757A1AA1-FF86-47D8-85BF-4D899A822467}\ProxyStubClsid32\ = "{00020424-0000-0000-C000-000000000046}"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\IEHlprObj.IEHlprObj.1\CLSID\ = "{757A1AA2-FF86-47D8-85BF-4D899A822467}"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\IEHlprObj.IEHlprObj\ = "IEHlprObj Class"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{757A1AA8-FF86-47D8-85BF-4D899A822467}\1.0\ = "IEHelper 1.0 Type Library"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{757A1AA1-FF86-47D8-85BF-4D899A822467}\TypeLib	regsvr32.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
1284	regsvr32.exe
1284	regsvr32.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 1740 wrote to memory of 1284	1740	regsvr32.exe	27
PID 1740 wrote to memory of 1284	1740	regsvr32.exe	27
PID 1740 wrote to memory of 1284	1740	regsvr32.exe	27
PID 1740 wrote to memory of 1284	1740	regsvr32.exe	27
PID 1740 wrote to memory of 1284	1740	regsvr32.exe	27
PID 1740 wrote to memory of 1284	1740	regsvr32.exe	27
PID 1740 wrote to memory of 1284	1740	regsvr32.exe	27

C:\Windows\system32\regsvr32.exe
regsvr32 /s C:\Users\Admin\AppData\Local\Temp\b8a7551f5324f9a62c96d7b24c7cd69e44b402dafcebfb2bff63308ede29579e.dll
1⤵
- Suspicious use of WriteProcessMemory
PID:1740
- C:\Windows\SysWOW64\regsvr32.exe
  /s C:\Users\Admin\AppData\Local\Temp\b8a7551f5324f9a62c96d7b24c7cd69e44b402dafcebfb2bff63308ede29579e.dll
  2⤵
  - Installs/modifies Browser Helper Object
  - Modifies registry class
  - Suspicious behavior: EnumeratesProcesses
  PID:1284

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Browser Extensions

T1176

Privilege Escalation

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/1284-56-0x0000000075931000-0x0000000075933000-memory.dmp

Filesize
8KB

Download
memory/1740-54-0x000007FEFB621000-0x000007FEFB623000-memory.dmp

Filesize
8KB

Download