Malware Analysis Report

2025-01-18 21:28

Sample ID 240321-ssjwjsed85
Target dbf5ff8f0825d42b6e49f9499d17e320
SHA256 7c8a2a6e3b4db09e1cbe5e686175eb15c8f17fdbea0f9c04a4b59156ff7132e8
Tags
adware stealer
score
6/10

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
6/10

SHA256

7c8a2a6e3b4db09e1cbe5e686175eb15c8f17fdbea0f9c04a4b59156ff7132e8

Threat Level: Shows suspicious behavior

The file dbf5ff8f0825d42b6e49f9499d17e320 was found to be: Shows suspicious behavior.

Malicious Activity Summary

adware stealer

Installs/modifies Browser Helper Object

Unsigned PE

Modifies registry class

Suspicious use of WriteProcessMemory

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-03-21 15:23

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-03-21 15:23

Reported

2024-03-21 15:25

Platform

win7-20240221-en

Max time kernel

117s

Max time network

119s

Command Line

regsvr32 /s C:\Users\Admin\AppData\Local\Temp\dbf5ff8f0825d42b6e49f9499d17e320.dll

Signatures

Installs/modifies Browser Helper Object

stealer adware
Description Indicator Process Target
Key created \REGISTRY\MACHINE\Software\Wow6432Node\Microsoft\Windows\CurrentVersion\explorer\Browser Helper Objects\{86EBD5B2-0796-49AD-AE08-846C3146D168} C:\Windows\SysWOW64\regsvr32.exe N/A

Modifies registry class

Description Indicator Process Target
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{86EBD5B2-0796-49AD-AE08-846C3146D168}\ProgID\ = "dbf5ff8f0825d42b6e49f9499d17e320.VeeQbain" C:\Windows\SysWOW64\regsvr32.exe N/A
Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{86EBD5B2-0796-49AD-AE08-846C3146D168} C:\Windows\SysWOW64\regsvr32.exe N/A
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{86EBD5B2-0796-49AD-AE08-846C3146D168}\InprocServer32\ThreadingModel = "Apartment" C:\Windows\SysWOW64\regsvr32.exe N/A
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\dbf5ff8f0825d42b6e49f9499d17e320.VeeQbain\ = "ExpBandse" C:\Windows\SysWOW64\regsvr32.exe N/A
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\dbf5ff8f0825d42b6e49f9499d17e320.VeeQbain\Clsid\ = "{86EBD5B2-0796-49AD-AE08-846C3146D168}" C:\Windows\SysWOW64\regsvr32.exe N/A
Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{86EBD5B2-0796-49AD-AE08-846C3146D168}\ProgID C:\Windows\SysWOW64\regsvr32.exe N/A
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{86EBD5B2-0796-49AD-AE08-846C3146D168}\ = "ExpBandse" C:\Windows\SysWOW64\regsvr32.exe N/A
Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{86EBD5B2-0796-49AD-AE08-846C3146D168}\InprocServer32 C:\Windows\SysWOW64\regsvr32.exe N/A
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{86EBD5B2-0796-49AD-AE08-846C3146D168}\InprocServer32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\dbf5ff8f0825d42b6e49f9499d17e320.dll" C:\Windows\SysWOW64\regsvr32.exe N/A
Key created \REGISTRY\MACHINE\SOFTWARE\Classes\dbf5ff8f0825d42b6e49f9499d17e320.VeeQbain C:\Windows\SysWOW64\regsvr32.exe N/A
Key created \REGISTRY\MACHINE\SOFTWARE\Classes\dbf5ff8f0825d42b6e49f9499d17e320.VeeQbain\Clsid C:\Windows\SysWOW64\regsvr32.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 2184 wrote to memory of 2220 N/A C:\Windows\system32\regsvr32.exe C:\Windows\SysWOW64\regsvr32.exe
PID 2184 wrote to memory of 2220 N/A C:\Windows\system32\regsvr32.exe C:\Windows\SysWOW64\regsvr32.exe
PID 2184 wrote to memory of 2220 N/A C:\Windows\system32\regsvr32.exe C:\Windows\SysWOW64\regsvr32.exe
PID 2184 wrote to memory of 2220 N/A C:\Windows\system32\regsvr32.exe C:\Windows\SysWOW64\regsvr32.exe
PID 2184 wrote to memory of 2220 N/A C:\Windows\system32\regsvr32.exe C:\Windows\SysWOW64\regsvr32.exe
PID 2184 wrote to memory of 2220 N/A C:\Windows\system32\regsvr32.exe C:\Windows\SysWOW64\regsvr32.exe
PID 2184 wrote to memory of 2220 N/A C:\Windows\system32\regsvr32.exe C:\Windows\SysWOW64\regsvr32.exe

Processes

C:\Windows\system32\regsvr32.exe

regsvr32 /s C:\Users\Admin\AppData\Local\Temp\dbf5ff8f0825d42b6e49f9499d17e320.dll

C:\Windows\SysWOW64\regsvr32.exe

/s C:\Users\Admin\AppData\Local\Temp\dbf5ff8f0825d42b6e49f9499d17e320.dll

Network

N/A

Files

memory/2220-0-0x0000000002200000-0x0000000002288000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-03-21 15:23

Reported

2024-03-21 15:25

Platform

win10v2004-20240226-en

Max time kernel

141s

Max time network

157s

Command Line

regsvr32 /s C:\Users\Admin\AppData\Local\Temp\dbf5ff8f0825d42b6e49f9499d17e320.dll

Signatures

Installs/modifies Browser Helper Object

stealer adware
Description Indicator Process Target
Key created \REGISTRY\MACHINE\Software\WOW6432Node\Microsoft\Windows\CurrentVersion\explorer\Browser Helper Objects\{86EBD5B2-0796-49AD-AE08-846C3146D168} C:\Windows\SysWOW64\regsvr32.exe N/A

Modifies registry class

Description Indicator Process Target
Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{86EBD5B2-0796-49AD-AE08-846C3146D168} C:\Windows\SysWOW64\regsvr32.exe N/A
Key created \REGISTRY\MACHINE\SOFTWARE\Classes\dbf5ff8f0825d42b6e49f9499d17e320.VeeQbain C:\Windows\SysWOW64\regsvr32.exe N/A
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\dbf5ff8f0825d42b6e49f9499d17e320.VeeQbain\ = "ExpBandse" C:\Windows\SysWOW64\regsvr32.exe N/A
Key created \REGISTRY\MACHINE\SOFTWARE\Classes\dbf5ff8f0825d42b6e49f9499d17e320.VeeQbain\Clsid C:\Windows\SysWOW64\regsvr32.exe N/A
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\dbf5ff8f0825d42b6e49f9499d17e320.VeeQbain\Clsid\ = "{86EBD5B2-0796-49AD-AE08-846C3146D168}" C:\Windows\SysWOW64\regsvr32.exe N/A
Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{86EBD5B2-0796-49AD-AE08-846C3146D168}\ProgID C:\Windows\SysWOW64\regsvr32.exe N/A
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{86EBD5B2-0796-49AD-AE08-846C3146D168}\ = "ExpBandse" C:\Windows\SysWOW64\regsvr32.exe N/A
Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{86EBD5B2-0796-49AD-AE08-846C3146D168}\InprocServer32 C:\Windows\SysWOW64\regsvr32.exe N/A
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{86EBD5B2-0796-49AD-AE08-846C3146D168}\InprocServer32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\dbf5ff8f0825d42b6e49f9499d17e320.dll" C:\Windows\SysWOW64\regsvr32.exe N/A
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{86EBD5B2-0796-49AD-AE08-846C3146D168}\InprocServer32\ThreadingModel = "Apartment" C:\Windows\SysWOW64\regsvr32.exe N/A
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{86EBD5B2-0796-49AD-AE08-846C3146D168}\ProgID\ = "dbf5ff8f0825d42b6e49f9499d17e320.VeeQbain" C:\Windows\SysWOW64\regsvr32.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 1084 wrote to memory of 4760 N/A C:\Windows\system32\regsvr32.exe C:\Windows\SysWOW64\regsvr32.exe
PID 1084 wrote to memory of 4760 N/A C:\Windows\system32\regsvr32.exe C:\Windows\SysWOW64\regsvr32.exe
PID 1084 wrote to memory of 4760 N/A C:\Windows\system32\regsvr32.exe C:\Windows\SysWOW64\regsvr32.exe

Processes

C:\Windows\system32\regsvr32.exe

regsvr32 /s C:\Users\Admin\AppData\Local\Temp\dbf5ff8f0825d42b6e49f9499d17e320.dll

C:\Windows\SysWOW64\regsvr32.exe

/s C:\Users\Admin\AppData\Local\Temp\dbf5ff8f0825d42b6e49f9499d17e320.dll

Network

Country Destination Domain Proto
US 8.8.8.8:53 g.bing.com udp
US 204.79.197.200:443 g.bing.com tcp
US 8.8.8.8:53 133.211.185.52.in-addr.arpa udp
US 8.8.8.8:53 23.177.190.20.in-addr.arpa udp
US 8.8.8.8:53 204.178.17.96.in-addr.arpa udp
US 8.8.8.8:53 9.228.82.20.in-addr.arpa udp
US 8.8.8.8:53 200.197.79.204.in-addr.arpa udp
US 8.8.8.8:53 55.36.223.20.in-addr.arpa udp
US 8.8.8.8:53 26.165.165.52.in-addr.arpa udp
US 8.8.8.8:53 41.110.16.96.in-addr.arpa udp
US 8.8.8.8:53 28.118.140.52.in-addr.arpa udp
US 8.8.8.8:53 56.126.166.20.in-addr.arpa udp
US 8.8.8.8:53 100.5.17.2.in-addr.arpa udp
US 8.8.8.8:53 119.110.54.20.in-addr.arpa udp
US 8.8.8.8:53 128.230.140.95.in-addr.arpa udp
US 8.8.8.8:53 173.178.17.96.in-addr.arpa udp
US 8.8.8.8:53 50.134.221.88.in-addr.arpa udp
NL 52.142.223.178:80 tcp
US 8.8.8.8:53 177.178.17.96.in-addr.arpa udp
US 8.8.8.8:53 210.178.17.96.in-addr.arpa udp
US 8.8.8.8:53 18.31.95.13.in-addr.arpa udp
US 8.8.8.8:53 217.135.221.88.in-addr.arpa udp
US 8.8.8.8:53 211.178.17.96.in-addr.arpa udp
US 8.8.8.8:53 14.227.111.52.in-addr.arpa udp
US 8.8.8.8:53 tse1.mm.bing.net udp
US 8.8.8.8:53 43.58.199.20.in-addr.arpa udp
US 204.79.197.200:443 tse1.mm.bing.net tcp
US 204.79.197.200:443 tse1.mm.bing.net tcp
US 204.79.197.200:443 tse1.mm.bing.net tcp
US 204.79.197.200:443 tse1.mm.bing.net tcp
US 204.79.197.200:443 tse1.mm.bing.net tcp
US 8.8.8.8:53 128.227.79.178.in-addr.arpa udp

Files

N/A