Malware Analysis Report

2025-01-18 21:13

Sample ID 240325-cysgwadg28
Target dd04a139630a774db3ebcef9dec88ac1
SHA256 5a8e62b693061ffec25ce1a9fcec4c8800f0df77aa91af2f9b73a9376a5a606d
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

5a8e62b693061ffec25ce1a9fcec4c8800f0df77aa91af2f9b73a9376a5a606d

Threat Level: Shows suspicious behavior

The file dd04a139630a774db3ebcef9dec88ac1 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

2024-03-25 02:29

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-03-25 02:29

Reported

2024-03-25 02:32

Platform

win7-20240215-en

Max time kernel

119s

Max time network

120s

Command Line

regsvr32 /s C:\Users\Admin\AppData\Local\Temp\dd04a139630a774db3ebcef9dec88ac1.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-8642-568C-711A-AA3A2AD81FC8} C:\Windows\SysWOW64\regsvr32.exe N/A

Modifies registry class

Description Indicator Process Target
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{CC01FC6C-8642-568C-711A-AA3A2AD81FC8}\ProgID\ = "dd04a139630a774db3ebcef9dec88ac1.sh" C:\Windows\SysWOW64\regsvr32.exe N/A
Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{CC01FC6C-8642-568C-711A-AA3A2AD81FC8} C:\Windows\SysWOW64\regsvr32.exe N/A
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{CC01FC6C-8642-568C-711A-AA3A2AD81FC8}\ = "sh" C:\Windows\SysWOW64\regsvr32.exe N/A
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{CC01FC6C-8642-568C-711A-AA3A2AD81FC8}\InprocServer32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\dd04a139630a774db3ebcef9dec88ac1.dll" C:\Windows\SysWOW64\regsvr32.exe N/A
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\dd04a139630a774db3ebcef9dec88ac1.sh\Clsid\ = "{CC01FC6C-8642-568C-711A-AA3A2AD81FC8}" C:\Windows\SysWOW64\regsvr32.exe N/A
Key created \REGISTRY\MACHINE\SOFTWARE\Classes\dd04a139630a774db3ebcef9dec88ac1.sh\Clsid C:\Windows\SysWOW64\regsvr32.exe N/A
Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{CC01FC6C-8642-568C-711A-AA3A2AD81FC8}\ProgID C:\Windows\SysWOW64\regsvr32.exe N/A
Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{CC01FC6C-8642-568C-711A-AA3A2AD81FC8}\InprocServer32 C:\Windows\SysWOW64\regsvr32.exe N/A
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{CC01FC6C-8642-568C-711A-AA3A2AD81FC8}\InprocServer32\ThreadingModel = "Apartment" C:\Windows\SysWOW64\regsvr32.exe N/A
Key created \REGISTRY\MACHINE\SOFTWARE\Classes\dd04a139630a774db3ebcef9dec88ac1.sh C:\Windows\SysWOW64\regsvr32.exe N/A
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\dd04a139630a774db3ebcef9dec88ac1.sh\ = "sh" C:\Windows\SysWOW64\regsvr32.exe N/A

Processes

C:\Windows\system32\regsvr32.exe

regsvr32 /s C:\Users\Admin\AppData\Local\Temp\dd04a139630a774db3ebcef9dec88ac1.dll

C:\Windows\SysWOW64\regsvr32.exe

/s C:\Users\Admin\AppData\Local\Temp\dd04a139630a774db3ebcef9dec88ac1.dll

Network

N/A

Files

memory/380-0-0x00000000008F0000-0x0000000000982000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-03-25 02:29

Reported

2024-03-25 02:32

Platform

win10v2004-20240319-en

Max time kernel

147s

Max time network

153s

Command Line

regsvr32 /s C:\Users\Admin\AppData\Local\Temp\dd04a139630a774db3ebcef9dec88ac1.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-8642-568C-711A-AA3A2AD81FC8} C:\Windows\SysWOW64\regsvr32.exe N/A

Modifies registry class

Description Indicator Process Target
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{CC01FC6C-8642-568C-711A-AA3A2AD81FC8}\ = "sh" C:\Windows\SysWOW64\regsvr32.exe N/A
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{CC01FC6C-8642-568C-711A-AA3A2AD81FC8}\InprocServer32\ThreadingModel = "Apartment" C:\Windows\SysWOW64\regsvr32.exe N/A
Key created \REGISTRY\MACHINE\SOFTWARE\Classes\dd04a139630a774db3ebcef9dec88ac1.sh C:\Windows\SysWOW64\regsvr32.exe N/A
Key created \REGISTRY\MACHINE\SOFTWARE\Classes\dd04a139630a774db3ebcef9dec88ac1.sh\Clsid C:\Windows\SysWOW64\regsvr32.exe N/A
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{CC01FC6C-8642-568C-711A-AA3A2AD81FC8}\ProgID\ = "dd04a139630a774db3ebcef9dec88ac1.sh" C:\Windows\SysWOW64\regsvr32.exe N/A
Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{CC01FC6C-8642-568C-711A-AA3A2AD81FC8} C:\Windows\SysWOW64\regsvr32.exe N/A
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{CC01FC6C-8642-568C-711A-AA3A2AD81FC8}\InprocServer32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\dd04a139630a774db3ebcef9dec88ac1.dll" C:\Windows\SysWOW64\regsvr32.exe N/A
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\dd04a139630a774db3ebcef9dec88ac1.sh\ = "sh" C:\Windows\SysWOW64\regsvr32.exe N/A
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\dd04a139630a774db3ebcef9dec88ac1.sh\Clsid\ = "{CC01FC6C-8642-568C-711A-AA3A2AD81FC8}" C:\Windows\SysWOW64\regsvr32.exe N/A
Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{CC01FC6C-8642-568C-711A-AA3A2AD81FC8}\ProgID C:\Windows\SysWOW64\regsvr32.exe N/A
Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{CC01FC6C-8642-568C-711A-AA3A2AD81FC8}\InprocServer32 C:\Windows\SysWOW64\regsvr32.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 3364 wrote to memory of 832 N/A C:\Windows\system32\regsvr32.exe C:\Windows\SysWOW64\regsvr32.exe
PID 3364 wrote to memory of 832 N/A C:\Windows\system32\regsvr32.exe C:\Windows\SysWOW64\regsvr32.exe
PID 3364 wrote to memory of 832 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\dd04a139630a774db3ebcef9dec88ac1.dll

C:\Windows\SysWOW64\regsvr32.exe

/s C:\Users\Admin\AppData\Local\Temp\dd04a139630a774db3ebcef9dec88ac1.dll

C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe

"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --no-appcompat-clear --mojo-platform-channel-handle=4460 --field-trial-handle=2264,i,1475924722205134884,16549311107360026087,262144 --variations-seed-version /prefetch:8

Network

Country Destination Domain Proto
US 8.8.8.8:53 67.31.126.40.in-addr.arpa udp
US 8.8.8.8:53 9.228.82.20.in-addr.arpa udp
US 8.8.8.8:53 180.178.17.96.in-addr.arpa udp
US 8.8.8.8:53 41.110.16.96.in-addr.arpa udp
US 8.8.8.8:53 157.123.68.40.in-addr.arpa udp
US 8.8.8.8:53 198.187.3.20.in-addr.arpa udp
US 8.8.8.8:53 172.210.232.199.in-addr.arpa udp
US 8.8.8.8:53 0.204.248.87.in-addr.arpa udp
US 8.8.8.8:53 43.229.111.52.in-addr.arpa udp
US 8.8.8.8:53 194.178.17.96.in-addr.arpa udp
US 8.8.8.8:53 122.10.44.20.in-addr.arpa udp

Files

N/A