e15817e8f865104200b206bdca2df0bfe3073f813414cc63bc6b05cae43f8a01

Analysis

max time kernel
137s
max time network
151s
platform
windows10-2004_x64
resource
win10v2004-20231215-en
resource tags

arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
submitted
28/12/2023, 21:17

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General

Target

f8bee738435e02c529f5344315500885.dll
Size

164KB
MD5

f8bee738435e02c529f5344315500885
SHA1

ac9b134da27ea1d3037cb24adc897f46752067ee
SHA256

e15817e8f865104200b206bdca2df0bfe3073f813414cc63bc6b05cae43f8a01
SHA512

7707a6b9dd4b5923155483ab7d1ae9414e2ba65732b80c65a65f1c18887458ce4e52dc1aa57a351fb2b9f9fb5bc8c964692087f2ff2bffbce9a8572cef12718c
SSDEEP

3072:MetQGoObDwoA05BrhP5bkf2Wor5RwXozOmojbKFkn6n:MgXA6dP9LWowcO/Uk6

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\{296AB1B8-FB22-4D17-8834-064E2BA0A6F0}	regsvr32.exe

Drops file in Windows directory 1 IoCs

description	ioc	Process
File opened for modification	C:\Windows\system.ini	regsvr32.exe

Modifies registry class 6 IoCs

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{296AB1B8-FB22-4D17-8834-064E2BA0A6F0}	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{296AB1B8-FB22-4D17-8834-064E2BA0A6F0}\TypeLib	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{296AB1B8-FB22-4D17-8834-064E2BA0A6F0}\TypeLib\ = "{296AB1B8-FB22-4D17-8834"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{296AB1B8-FB22-4D17-8834-064E2BA0A6F0}\InProcServer32	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{296AB1B8-FB22-4D17-8834-064E2BA0A6F0}\InProcServer32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\f8bee738435e02c529f5344315500885.dll"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{296AB1B8-FB22-4D17-8834-064E2BA0A6F0}\InProcServer32\ThreadingModel = "Apartment"	regsvr32.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 1772 wrote to memory of 1636	1772	regsvr32.exe	16
PID 1772 wrote to memory of 1636	1772	regsvr32.exe	16
PID 1772 wrote to memory of 1636	1772	regsvr32.exe	16

C:\Windows\system32\regsvr32.exe
regsvr32 /s C:\Users\Admin\AppData\Local\Temp\f8bee738435e02c529f5344315500885.dll
1⤵
- Suspicious use of WriteProcessMemory
PID:1772
- C:\Windows\SysWOW64\regsvr32.exe
  /s C:\Users\Admin\AppData\Local\Temp\f8bee738435e02c529f5344315500885.dll
  2⤵
  - Installs/modifies Browser Helper Object
  - Drops file in Windows directory
  - Modifies registry class
  PID:1636

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

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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