Malware Analysis Report

2025-01-18 21:27

Sample ID 240321-s3aqmagc6w
Target dbfd5e82fb8e1a60b840c6f1bfa9a940
SHA256 61ae9dc502932b1e066acc4ff238a3c05c31b0cbb67e7ae3fc0ed16c6e446677
Tags
adware stealer
score
6/10

Table of Contents

Analysis Overview

MITRE ATT&CK

Enterprise Matrix V15

Analysis: static1

Detonation Overview

Signatures

Analysis: behavioral2

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis: behavioral1

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis Overview

score
6/10

SHA256

61ae9dc502932b1e066acc4ff238a3c05c31b0cbb67e7ae3fc0ed16c6e446677

Threat Level: Shows suspicious behavior

The file dbfd5e82fb8e1a60b840c6f1bfa9a940 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 15:38

Signatures

Unsigned PE

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

Analysis: behavioral2

Detonation Overview

Submitted

2024-03-21 15:38

Reported

2024-03-21 15:41

Platform

win10v2004-20240226-en

Max time kernel

149s

Max time network

151s

Command Line

regsvr32 /s C:\Users\Admin\AppData\Local\Temp\dbfd5e82fb8e1a60b840c6f1bfa9a940.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\{CC01FC6C-169A-A6FB-7F14-89A3D384A15B} C:\Windows\SysWOW64\regsvr32.exe N/A

Modifies registry class

Description Indicator Process Target
Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{CC01FC6C-169A-A6FB-7F14-89A3D384A15B} C:\Windows\SysWOW64\regsvr32.exe N/A
Key created \REGISTRY\MACHINE\SOFTWARE\Classes\dbfd5e82fb8e1a60b840c6f1bfa9a940.sh C:\Windows\SysWOW64\regsvr32.exe N/A
Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{CC01FC6C-169A-A6FB-7F14-89A3D384A15B}\ProgID C:\Windows\SysWOW64\regsvr32.exe N/A
Key created \REGISTRY\MACHINE\SOFTWARE\Classes\dbfd5e82fb8e1a60b840c6f1bfa9a940.sh\Clsid C:\Windows\SysWOW64\regsvr32.exe N/A
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\dbfd5e82fb8e1a60b840c6f1bfa9a940.sh\Clsid\ = "{CC01FC6C-169A-A6FB-7F14-89A3D384A15B}" C:\Windows\SysWOW64\regsvr32.exe N/A
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{CC01FC6C-169A-A6FB-7F14-89A3D384A15B}\ProgID\ = "dbfd5e82fb8e1a60b840c6f1bfa9a940.sh" C:\Windows\SysWOW64\regsvr32.exe N/A
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{CC01FC6C-169A-A6FB-7F14-89A3D384A15B}\ = "sh" C:\Windows\SysWOW64\regsvr32.exe N/A
Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{CC01FC6C-169A-A6FB-7F14-89A3D384A15B}\InprocServer32 C:\Windows\SysWOW64\regsvr32.exe N/A
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{CC01FC6C-169A-A6FB-7F14-89A3D384A15B}\InprocServer32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\dbfd5e82fb8e1a60b840c6f1bfa9a940.dll" C:\Windows\SysWOW64\regsvr32.exe N/A
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{CC01FC6C-169A-A6FB-7F14-89A3D384A15B}\InprocServer32\ThreadingModel = "Apartment" C:\Windows\SysWOW64\regsvr32.exe N/A
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\dbfd5e82fb8e1a60b840c6f1bfa9a940.sh\ = "sh" C:\Windows\SysWOW64\regsvr32.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 4436 wrote to memory of 2320 N/A C:\Windows\system32\regsvr32.exe C:\Windows\SysWOW64\regsvr32.exe
PID 4436 wrote to memory of 2320 N/A C:\Windows\system32\regsvr32.exe C:\Windows\SysWOW64\regsvr32.exe
PID 4436 wrote to memory of 2320 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\dbfd5e82fb8e1a60b840c6f1bfa9a940.dll

C:\Windows\SysWOW64\regsvr32.exe

/s C:\Users\Admin\AppData\Local\Temp\dbfd5e82fb8e1a60b840c6f1bfa9a940.dll

Network

Country Destination Domain Proto
US 8.8.8.8:53 72.32.126.40.in-addr.arpa udp
US 8.8.8.8:53 193.78.101.95.in-addr.arpa udp
US 8.8.8.8:53 196.249.167.52.in-addr.arpa udp
US 8.8.8.8:53 241.154.82.20.in-addr.arpa udp
US 8.8.8.8:53 41.110.16.96.in-addr.arpa udp
US 8.8.8.8:53 103.169.127.40.in-addr.arpa udp
US 8.8.8.8:53 18.31.95.13.in-addr.arpa udp
US 8.8.8.8:53 154.239.44.20.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 8.8.8.8:53 196.178.17.96.in-addr.arpa udp
US 8.8.8.8:53 217.135.221.88.in-addr.arpa udp
US 8.8.8.8:53 240.221.184.93.in-addr.arpa udp
US 8.8.8.8:53 195.178.17.96.in-addr.arpa udp
US 8.8.8.8:53 211.135.221.88.in-addr.arpa udp
US 8.8.8.8:53 202.178.17.96.in-addr.arpa udp
US 8.8.8.8:53 176.178.17.96.in-addr.arpa udp
US 8.8.8.8:53 13.227.111.52.in-addr.arpa udp
US 8.8.8.8:53 tse1.mm.bing.net 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 8.8.8.8:53 27.178.89.13.in-addr.arpa udp

Files

memory/2320-0-0x0000000000700000-0x0000000000792000-memory.dmp

Analysis: behavioral1

Detonation Overview

Submitted

2024-03-21 15:38

Reported

2024-03-21 15:41

Platform

win7-20240221-en

Max time kernel

121s

Max time network

125s

Command Line

regsvr32 /s C:\Users\Admin\AppData\Local\Temp\dbfd5e82fb8e1a60b840c6f1bfa9a940.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\{CC01FC6C-169A-A6FB-7F14-89A3D384A15B} C:\Windows\SysWOW64\regsvr32.exe N/A

Modifies registry class

Description Indicator Process Target
Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{CC01FC6C-169A-A6FB-7F14-89A3D384A15B} C:\Windows\SysWOW64\regsvr32.exe N/A
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{CC01FC6C-169A-A6FB-7F14-89A3D384A15B}\InprocServer32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\dbfd5e82fb8e1a60b840c6f1bfa9a940.dll" C:\Windows\SysWOW64\regsvr32.exe N/A
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\dbfd5e82fb8e1a60b840c6f1bfa9a940.sh\ = "sh" C:\Windows\SysWOW64\regsvr32.exe N/A
Key created \REGISTRY\MACHINE\SOFTWARE\Classes\dbfd5e82fb8e1a60b840c6f1bfa9a940.sh\Clsid C:\Windows\SysWOW64\regsvr32.exe N/A
Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{CC01FC6C-169A-A6FB-7F14-89A3D384A15B}\ProgID C:\Windows\SysWOW64\regsvr32.exe N/A
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{CC01FC6C-169A-A6FB-7F14-89A3D384A15B}\ProgID\ = "dbfd5e82fb8e1a60b840c6f1bfa9a940.sh" C:\Windows\SysWOW64\regsvr32.exe N/A
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{CC01FC6C-169A-A6FB-7F14-89A3D384A15B}\ = "sh" C:\Windows\SysWOW64\regsvr32.exe N/A
Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{CC01FC6C-169A-A6FB-7F14-89A3D384A15B}\InprocServer32 C:\Windows\SysWOW64\regsvr32.exe N/A
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{CC01FC6C-169A-A6FB-7F14-89A3D384A15B}\InprocServer32\ThreadingModel = "Apartment" C:\Windows\SysWOW64\regsvr32.exe N/A
Key created \REGISTRY\MACHINE\SOFTWARE\Classes\dbfd5e82fb8e1a60b840c6f1bfa9a940.sh C:\Windows\SysWOW64\regsvr32.exe N/A
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\dbfd5e82fb8e1a60b840c6f1bfa9a940.sh\Clsid\ = "{CC01FC6C-169A-A6FB-7F14-89A3D384A15B}" C:\Windows\SysWOW64\regsvr32.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 2476 wrote to memory of 2832 N/A C:\Windows\system32\regsvr32.exe C:\Windows\SysWOW64\regsvr32.exe
PID 2476 wrote to memory of 2832 N/A C:\Windows\system32\regsvr32.exe C:\Windows\SysWOW64\regsvr32.exe
PID 2476 wrote to memory of 2832 N/A C:\Windows\system32\regsvr32.exe C:\Windows\SysWOW64\regsvr32.exe
PID 2476 wrote to memory of 2832 N/A C:\Windows\system32\regsvr32.exe C:\Windows\SysWOW64\regsvr32.exe
PID 2476 wrote to memory of 2832 N/A C:\Windows\system32\regsvr32.exe C:\Windows\SysWOW64\regsvr32.exe
PID 2476 wrote to memory of 2832 N/A C:\Windows\system32\regsvr32.exe C:\Windows\SysWOW64\regsvr32.exe
PID 2476 wrote to memory of 2832 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\dbfd5e82fb8e1a60b840c6f1bfa9a940.dll

C:\Windows\SysWOW64\regsvr32.exe

/s C:\Users\Admin\AppData\Local\Temp\dbfd5e82fb8e1a60b840c6f1bfa9a940.dll

Network

N/A

Files

memory/2832-0-0x00000000002F0000-0x0000000000382000-memory.dmp