b1f71139a8f6bbef06be19ec823e806967ac5ef5c622d3cc225322991d6806cf

Analysis

max time kernel
112s
max time network
124s
platform
windows10-2004_x64
resource
win10v2004-20220901-en
resource tags

arch:x64arch:x86image:win10v2004-20220901-enlocale:en-usos:windows10-2004-x64system
submitted
02/12/2022, 17:36

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General

Target

b1f71139a8f6bbef06be19ec823e806967ac5ef5c622d3cc225322991d6806cf.dll
Size

58KB
MD5

3221c2144e6dea8a529cdb4c5c591fe1
SHA1

39c3432d9c5750187eeb767ded0c3ff3db7d8a21
SHA256

b1f71139a8f6bbef06be19ec823e806967ac5ef5c622d3cc225322991d6806cf
SHA512

2195af0ff0af13a1a83e37fb336c4dafe9eb3df112f04082dea1b9d6b10d4ce90727c134fa722c6988c1313d69e159295415a959b8503cbb3d64cd293f36c878
SSDEEP

768:7DfN9wiAxAfgsA83/hL9sWx2H5GlEDEn2OqozpmaNWl7y3UEEZZX7:7DHwiAlypsWI0HvrWl7y3Ut

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\{D0AA9EC3-AF1F-433f-9A39-DC0387CB5CD8}	regsvr32.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Explorer\Browser Helper Objects\{D0AA9EC3-AF1F-433f-9A39-DC0387CB5CD8}\NoExplorer = "1"	regsvr32.exe

Modifies registry class 5 IoCs

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{D0AA9EC3-AF1F-433f-9A39-DC0387CB5CD8}\InProcServer32	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{D0AA9EC3-AF1F-433f-9A39-DC0387CB5CD8}\InProcServer32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\b1f71139a8f6bbef06be19ec823e806967ac5ef5c622d3cc225322991d6806cf.dll"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{D0AA9EC3-AF1F-433f-9A39-DC0387CB5CD8}\InProcServer32\ThreadingModel = "Apartment"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{D0AA9EC3-AF1F-433f-9A39-DC0387CB5CD8}	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{D0AA9EC3-AF1F-433f-9A39-DC0387CB5CD8}\ = "DealCabby"	regsvr32.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 796 wrote to memory of 4316	796	regsvr32.exe	81
PID 796 wrote to memory of 4316	796	regsvr32.exe	81
PID 796 wrote to memory of 4316	796	regsvr32.exe	81

C:\Windows\system32\regsvr32.exe
regsvr32 /s C:\Users\Admin\AppData\Local\Temp\b1f71139a8f6bbef06be19ec823e806967ac5ef5c622d3cc225322991d6806cf.dll
1⤵
- Suspicious use of WriteProcessMemory
PID:796
- C:\Windows\SysWOW64\regsvr32.exe
  /s C:\Users\Admin\AppData\Local\Temp\b1f71139a8f6bbef06be19ec823e806967ac5ef5c622d3cc225322991d6806cf.dll
  2⤵
  - Installs/modifies Browser Helper Object
  - Modifies registry class
  PID:4316

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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