Malware Analysis Report

2025-08-05 16:42

Sample ID 240204-xag2fsadbj
Target 8fde3f8b6233ec067c2f19dfe7e947bb
SHA256 134964a3a0ca44c9b9c371e76f266600924c82dd9ff7220052af2d6b3f98f59e
Tags
adware evasion stealer trojan
score
7/10

Table of Contents

Analysis Overview

MITRE ATT&CK

Enterprise Matrix V15

Analysis: static1

Detonation Overview

Signatures

Analysis: behavioral1

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis: behavioral2

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis Overview

score
7/10

SHA256

134964a3a0ca44c9b9c371e76f266600924c82dd9ff7220052af2d6b3f98f59e

Threat Level: Shows suspicious behavior

The file 8fde3f8b6233ec067c2f19dfe7e947bb was found to be: Shows suspicious behavior.

Malicious Activity Summary

adware evasion stealer trojan

Loads dropped DLL

Checks computer location settings

Installs/modifies Browser Helper Object

Checks whether UAC is enabled

Drops file in System32 directory

Unsigned PE

Enumerates physical storage devices

Modifies registry class

Suspicious use of SetWindowsHookEx

Suspicious use of WriteProcessMemory

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-02-04 18:38

Signatures

Unsigned PE

Description Indicator Process Target
N/A N/A N/A N/A

Analysis: behavioral1

Detonation Overview

Submitted

2024-02-04 18:38

Reported

2024-02-04 18:41

Platform

win7-20231129-en

Max time kernel

122s

Max time network

123s

Command Line

"C:\Users\Admin\AppData\Local\Temp\8fde3f8b6233ec067c2f19dfe7e947bb.exe"

Signatures

Loads dropped DLL

Description Indicator Process Target
N/A N/A C:\Windows\SysWOW64\regsvr32.exe N/A

Checks whether UAC is enabled

evasion trojan
Description Indicator Process Target
Key value queried \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA C:\Users\Admin\AppData\Local\Temp\8fde3f8b6233ec067c2f19dfe7e947bb.exe N/A

Installs/modifies Browser Helper Object

stealer adware
Description Indicator Process Target
Key created \REGISTRY\MACHINE\Software\Wow6432Node\Microsoft\Windows\CurrentVersion\explorer\Browser Helper Objects\{54698A2F-2247-4538-82FC-2B5443D66945} C:\Windows\SysWOW64\regsvr32.exe N/A

Drops file in System32 directory

Description Indicator Process Target
File created C:\Windows\SysWOW64\drivera.dll C:\Users\Admin\AppData\Local\Temp\8fde3f8b6233ec067c2f19dfe7e947bb.exe N/A
File created C:\Windows\SysWOW64\drivera.exe C:\Users\Admin\AppData\Local\Temp\8fde3f8b6233ec067c2f19dfe7e947bb.exe N/A

Enumerates physical storage devices

Modifies registry class

Description Indicator Process Target
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{54698A2F-2247-4538-82FC-2B5443D66945}\InprocServer32\ = "C:\\Windows\\SysWow64\\drivera.dll" C:\Windows\SysWOW64\regsvr32.exe N/A
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{54698A2F-2247-4538-82FC-2B5443D66945}\InprocServer32\ThreadingModel = "Apartment" C:\Windows\SysWOW64\regsvr32.exe N/A
Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{54698A2F-2247-4538-82FC-2B5443D66945} C:\Windows\SysWOW64\regsvr32.exe N/A
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{54698A2F-2247-4538-82FC-2B5443D66945}\ C:\Windows\SysWOW64\regsvr32.exe N/A
Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{54698A2F-2247-4538-82FC-2B5443D66945}\InprocServer32 C:\Windows\SysWOW64\regsvr32.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\8fde3f8b6233ec067c2f19dfe7e947bb.exe

"C:\Users\Admin\AppData\Local\Temp\8fde3f8b6233ec067c2f19dfe7e947bb.exe"

C:\Windows\SysWOW64\regsvr32.exe

"C:\Windows\System32\regsvr32.exe" /s C:\Windows\system32\drivera.dll

Network

N/A

Files

memory/1476-0-0x0000000000400000-0x000000000044B000-memory.dmp

memory/1476-1-0x00000000001B0000-0x00000000001B2000-memory.dmp

\Windows\SysWOW64\drivera.dll

MD5 fbd1a0dd96e559b6b3f4433d4c37d855
SHA1 536f861a349fbcd9a108e51d134398eb2059fc9f
SHA256 93d44443472184498349a735673b0d1564f2dbdade5b748078a7689e7007ce42
SHA512 22dd0a96f06a1524d576ca97d847ae7e6a4e2c6e877b587af9af8f6642466de5a8ed7c032b5759ae981f30df1522994232f754965c09c9f78ed378a6e677718c

memory/2996-8-0x0000000000470000-0x000000000049A000-memory.dmp

memory/1476-9-0x0000000000400000-0x000000000044B000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-02-04 18:38

Reported

2024-02-04 18:41

Platform

win10v2004-20231215-en

Max time kernel

93s

Max time network

128s

Command Line

"C:\Users\Admin\AppData\Local\Temp\8fde3f8b6233ec067c2f19dfe7e947bb.exe"

Signatures

Checks computer location settings

Description Indicator Process Target
Key value queried \REGISTRY\USER\S-1-5-21-3336304223-2978740688-3645194410-1000\Control Panel\International\Geo\Nation C:\Users\Admin\AppData\Local\Temp\8fde3f8b6233ec067c2f19dfe7e947bb.exe N/A

Loads dropped DLL

Description Indicator Process Target
N/A N/A C:\Windows\SysWOW64\regsvr32.exe N/A

Checks whether UAC is enabled

evasion trojan
Description Indicator Process Target
Key value queried \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA C:\Users\Admin\AppData\Local\Temp\8fde3f8b6233ec067c2f19dfe7e947bb.exe N/A

Installs/modifies Browser Helper Object

stealer adware
Description Indicator Process Target
Key created \REGISTRY\MACHINE\Software\WOW6432Node\Microsoft\Windows\CurrentVersion\explorer\Browser Helper Objects\{54698A2F-2247-4538-82FC-2B5443D66945} C:\Windows\SysWOW64\regsvr32.exe N/A

Drops file in System32 directory

Description Indicator Process Target
File created C:\Windows\SysWOW64\drivera.dll C:\Users\Admin\AppData\Local\Temp\8fde3f8b6233ec067c2f19dfe7e947bb.exe N/A
File created C:\Windows\SysWOW64\drivera.exe C:\Users\Admin\AppData\Local\Temp\8fde3f8b6233ec067c2f19dfe7e947bb.exe N/A

Enumerates physical storage devices

Modifies registry class

Description Indicator Process Target
Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{54698A2F-2247-4538-82FC-2B5443D66945}\InprocServer32 C:\Windows\SysWOW64\regsvr32.exe N/A
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{54698A2F-2247-4538-82FC-2B5443D66945}\InprocServer32\ = "C:\\Windows\\SysWow64\\drivera.dll" C:\Windows\SysWOW64\regsvr32.exe N/A
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{54698A2F-2247-4538-82FC-2B5443D66945}\InprocServer32\ThreadingModel = "Apartment" C:\Windows\SysWOW64\regsvr32.exe N/A
Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{54698A2F-2247-4538-82FC-2B5443D66945} C:\Windows\SysWOW64\regsvr32.exe N/A
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{54698A2F-2247-4538-82FC-2B5443D66945}\ C:\Windows\SysWOW64\regsvr32.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\8fde3f8b6233ec067c2f19dfe7e947bb.exe

"C:\Users\Admin\AppData\Local\Temp\8fde3f8b6233ec067c2f19dfe7e947bb.exe"

C:\Windows\SysWOW64\regsvr32.exe

"C:\Windows\System32\regsvr32.exe" /s C:\Windows\system32\drivera.dll

Network

Country Destination Domain Proto
US 8.8.8.8:53 183.142.211.20.in-addr.arpa udp
US 8.8.8.8:53 183.178.17.96.in-addr.arpa udp
US 8.8.8.8:53 140.32.126.40.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 97.17.167.52.in-addr.arpa udp
NL 52.142.223.178:80 tcp
US 8.8.8.8:53 50.23.12.20.in-addr.arpa udp
US 8.8.8.8:53 198.187.3.20.in-addr.arpa udp
US 8.8.8.8:53 18.134.221.88.in-addr.arpa udp
US 8.8.8.8:53 175.178.17.96.in-addr.arpa udp
US 8.8.8.8:53 21.236.111.52.in-addr.arpa udp
US 8.8.8.8:53 210.178.17.96.in-addr.arpa udp

Files

memory/1776-0-0x0000000000400000-0x000000000044B000-memory.dmp

memory/1776-1-0x00000000005E0000-0x00000000005E2000-memory.dmp

C:\Windows\SysWOW64\drivera.dll

MD5 fbd1a0dd96e559b6b3f4433d4c37d855
SHA1 536f861a349fbcd9a108e51d134398eb2059fc9f
SHA256 93d44443472184498349a735673b0d1564f2dbdade5b748078a7689e7007ce42
SHA512 22dd0a96f06a1524d576ca97d847ae7e6a4e2c6e877b587af9af8f6642466de5a8ed7c032b5759ae981f30df1522994232f754965c09c9f78ed378a6e677718c

memory/1776-8-0x0000000000400000-0x000000000044B000-memory.dmp