bc4c8ad423ed0a7ea07f2c00259108a1c655d11a772cc0a2c21d453fc87e2c60

Analysis

max time kernel
295s
max time network
346s
platform
windows10-2004_x64
resource
win10v2004-20221111-en
resource tags

arch:x64arch:x86image:win10v2004-20221111-enlocale:en-usos:windows10-2004-x64system
submitted
03/12/2022, 22:09

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General

Target

bc4c8ad423ed0a7ea07f2c00259108a1c655d11a772cc0a2c21d453fc87e2c60.dll
Size

795KB
MD5

1bf824d555163924d680f64bbb28fb72
SHA1

e351bbbefc42995dd8d1da85bc5d6796af36dabb
SHA256

bc4c8ad423ed0a7ea07f2c00259108a1c655d11a772cc0a2c21d453fc87e2c60
SHA512

ea921b652dcbc65c1edd96fcfabf5f3c21761f72cfa30e20bb20a523138728d97b3f3db167fd082ef02bf8794935fe900fb867cbc9674125c023d6750f1a2893
SSDEEP

12288:Fm3l+OkW+C9nIoxIb/IkGMtBVpdxFZNkQYVPcBJ1+cmRUuGOEIvuRdObhTi1jqn0:c0+DjubiaQcaEIvCdnnBcQjNgTdfq

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\{2BB2FCA8-3A62-5B50-AC95-F31AB11B0A65}	regsvr32.exe

Modifies registry class 11 IoCs

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{2BB2FCA8-3A62-5B50-AC95-F31AB11B0A65}\ProgID\ = "bc4c8ad423ed0a7ea07f2c00259108a1c655d11a772cc0a2c21d453fc87e2c60.ExpToireniset"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{2BB2FCA8-3A62-5B50-AC95-F31AB11B0A65}\ = "Seraisitentba"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{2BB2FCA8-3A62-5B50-AC95-F31AB11B0A65}\InprocServer32	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{2BB2FCA8-3A62-5B50-AC95-F31AB11B0A65}\InprocServer32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\bc4c8ad423ed0a7ea07f2c00259108a1c655d11a772cc0a2c21d453fc87e2c60.dll"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\bc4c8ad423ed0a7ea07f2c00259108a1c655d11a772cc0a2c21d453fc87e2c60.ExpToireniset\ = "Seraisitentba"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\bc4c8ad423ed0a7ea07f2c00259108a1c655d11a772cc0a2c21d453fc87e2c60.ExpToireniset\Clsid	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{2BB2FCA8-3A62-5B50-AC95-F31AB11B0A65}\ProgID	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{2BB2FCA8-3A62-5B50-AC95-F31AB11B0A65}	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{2BB2FCA8-3A62-5B50-AC95-F31AB11B0A65}\InprocServer32\ThreadingModel = "Apartment"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\bc4c8ad423ed0a7ea07f2c00259108a1c655d11a772cc0a2c21d453fc87e2c60.ExpToireniset	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\bc4c8ad423ed0a7ea07f2c00259108a1c655d11a772cc0a2c21d453fc87e2c60.ExpToireniset\Clsid\ = "{2BB2FCA8-3A62-5B50-AC95-F31AB11B0A65}"	regsvr32.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 1544 wrote to memory of 3876	1544	regsvr32.exe	84
PID 1544 wrote to memory of 3876	1544	regsvr32.exe	84
PID 1544 wrote to memory of 3876	1544	regsvr32.exe	84

C:\Windows\system32\regsvr32.exe
regsvr32 /s C:\Users\Admin\AppData\Local\Temp\bc4c8ad423ed0a7ea07f2c00259108a1c655d11a772cc0a2c21d453fc87e2c60.dll
1⤵
- Suspicious use of WriteProcessMemory
PID:1544
- C:\Windows\SysWOW64\regsvr32.exe
  /s C:\Users\Admin\AppData\Local\Temp\bc4c8ad423ed0a7ea07f2c00259108a1c655d11a772cc0a2c21d453fc87e2c60.dll
  2⤵
  - Installs/modifies Browser Helper Object
  - Modifies registry class
  PID:3876

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

Windows 7 deprecation

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