Malware Analysis Report

2025-01-18 22:00

Sample ID 240622-n18sesxaqh
Target 02029a3e2b9f1146d7fad153032eb1d6_JaffaCakes118
SHA256 1519515928cc253ed7c9b33aa4ae74c8f5f2a70acd824c2e3c9f0d5ee444c821
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

1519515928cc253ed7c9b33aa4ae74c8f5f2a70acd824c2e3c9f0d5ee444c821

Threat Level: Shows suspicious behavior

The file 02029a3e2b9f1146d7fad153032eb1d6_JaffaCakes118 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

2024-06-22 11:52

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-06-22 11:52

Reported

2024-06-22 11:55

Platform

win7-20240221-en

Max time kernel

119s

Max time network

120s

Command Line

regsvr32 /s C:\Users\Admin\AppData\Local\Temp\02029a3e2b9f1146d7fad153032eb1d6_JaffaCakes118.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\{42B448E1-483C-4BDB-991E-D10E5D546150} C:\Windows\SysWOW64\regsvr32.exe N/A
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\explorer\Browser Helper Objects\{42B448E1-483C-4BDB-991E-D10E5D546150}\ C:\Windows\SysWOW64\regsvr32.exe N/A

Modifies registry class

Description Indicator Process Target
Key created \REGISTRY\MACHINE\SOFTWARE\Classes\02029a3e2b9f1146d7fad153032eb1d6_JaffaCakes118.VagaaÍ۸»­Ê±´ú\Clsid C:\Windows\SysWOW64\regsvr32.exe N/A
Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{42B448E1-483C-4BDB-991E-D10E5D546150}\ProgID C:\Windows\SysWOW64\regsvr32.exe N/A
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{42B448E1-483C-4BDB-991E-D10E5D546150}\ProgID\ = "02029a3e2b9f1146d7fad153032eb1d6_JaffaCakes118.VagaaÍ۸»\u00adʱ´ú" C:\Windows\SysWOW64\regsvr32.exe N/A
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{42B448E1-483C-4BDB-991E-D10E5D546150}\ = "Ö§³Ö¶àÖÖÐ\u00adÒéµÄBT" C:\Windows\SysWOW64\regsvr32.exe N/A
Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{42B448E1-483C-4BDB-991E-D10E5D546150}\InprocServer32 C:\Windows\SysWOW64\regsvr32.exe N/A
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{42B448E1-483C-4BDB-991E-D10E5D546150}\InprocServer32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\02029a3e2b9f1146d7fad153032eb1d6_JaffaCakes118.dll" C:\Windows\SysWOW64\regsvr32.exe N/A
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{42B448E1-483C-4BDB-991E-D10E5D546150}\InprocServer32\ThreadingModel = "Apartment" C:\Windows\SysWOW64\regsvr32.exe N/A
Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{42B448E1-483C-4BDB-991E-D10E5D546150} C:\Windows\SysWOW64\regsvr32.exe N/A
Key created \REGISTRY\MACHINE\SOFTWARE\Classes\02029a3e2b9f1146d7fad153032eb1d6_JaffaCakes118.VagaaÍ۸»­Ê±´ú C:\Windows\SysWOW64\regsvr32.exe N/A
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\02029a3e2b9f1146d7fad153032eb1d6_JaffaCakes118.VagaaÍ۸»­Ê±´ú\ = "Ö§³Ö¶àÖÖÐ\u00adÒéµÄBT" C:\Windows\SysWOW64\regsvr32.exe N/A
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\02029a3e2b9f1146d7fad153032eb1d6_JaffaCakes118.VagaaÍ۸»­Ê±´ú\Clsid\ = "{42B448E1-483C-4BDB-991E-D10E5D546150}" C:\Windows\SysWOW64\regsvr32.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 2412 wrote to memory of 2124 N/A C:\Windows\system32\regsvr32.exe C:\Windows\SysWOW64\regsvr32.exe
PID 2412 wrote to memory of 2124 N/A C:\Windows\system32\regsvr32.exe C:\Windows\SysWOW64\regsvr32.exe
PID 2412 wrote to memory of 2124 N/A C:\Windows\system32\regsvr32.exe C:\Windows\SysWOW64\regsvr32.exe
PID 2412 wrote to memory of 2124 N/A C:\Windows\system32\regsvr32.exe C:\Windows\SysWOW64\regsvr32.exe
PID 2412 wrote to memory of 2124 N/A C:\Windows\system32\regsvr32.exe C:\Windows\SysWOW64\regsvr32.exe
PID 2412 wrote to memory of 2124 N/A C:\Windows\system32\regsvr32.exe C:\Windows\SysWOW64\regsvr32.exe
PID 2412 wrote to memory of 2124 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\02029a3e2b9f1146d7fad153032eb1d6_JaffaCakes118.dll

C:\Windows\SysWOW64\regsvr32.exe

/s C:\Users\Admin\AppData\Local\Temp\02029a3e2b9f1146d7fad153032eb1d6_JaffaCakes118.dll

Network

N/A

Files

memory/2124-0-0x0000000000910000-0x000000000098C000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-06-22 11:52

Reported

2024-06-22 11:55

Platform

win10v2004-20240508-en

Max time kernel

51s

Max time network

51s

Command Line

regsvr32 /s C:\Users\Admin\AppData\Local\Temp\02029a3e2b9f1146d7fad153032eb1d6_JaffaCakes118.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\{42B448E1-483C-4BDB-991E-D10E5D546150} C:\Windows\SysWOW64\regsvr32.exe N/A
Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Explorer\Browser Helper Objects\{42B448E1-483C-4BDB-991E-D10E5D546150}\ C:\Windows\SysWOW64\regsvr32.exe N/A

Modifies registry class

Description Indicator Process Target
Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{42B448E1-483C-4BDB-991E-D10E5D546150} C:\Windows\SysWOW64\regsvr32.exe N/A
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{42B448E1-483C-4BDB-991E-D10E5D546150}\ = "Ö§³Ö¶àÖÖÐ\u00adÒéµÄBT" C:\Windows\SysWOW64\regsvr32.exe N/A
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\02029a3e2b9f1146d7fad153032eb1d6_JaffaCakes118.VagaaÍ۸»­Ê±´ú\ = "Ö§³Ö¶àÖÖÐ\u00adÒéµÄBT" C:\Windows\SysWOW64\regsvr32.exe N/A
Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{42B448E1-483C-4BDB-991E-D10E5D546150}\ProgID C:\Windows\SysWOW64\regsvr32.exe N/A
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{42B448E1-483C-4BDB-991E-D10E5D546150}\ProgID\ = "02029a3e2b9f1146d7fad153032eb1d6_JaffaCakes118.VagaaÍ۸»\u00adʱ´ú" C:\Windows\SysWOW64\regsvr32.exe N/A
Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{42B448E1-483C-4BDB-991E-D10E5D546150}\InprocServer32 C:\Windows\SysWOW64\regsvr32.exe N/A
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{42B448E1-483C-4BDB-991E-D10E5D546150}\InprocServer32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\02029a3e2b9f1146d7fad153032eb1d6_JaffaCakes118.dll" C:\Windows\SysWOW64\regsvr32.exe N/A
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{42B448E1-483C-4BDB-991E-D10E5D546150}\InprocServer32\ThreadingModel = "Apartment" C:\Windows\SysWOW64\regsvr32.exe N/A
Key created \REGISTRY\MACHINE\SOFTWARE\Classes\02029a3e2b9f1146d7fad153032eb1d6_JaffaCakes118.VagaaÍ۸»­Ê±´ú C:\Windows\SysWOW64\regsvr32.exe N/A
Key created \REGISTRY\MACHINE\SOFTWARE\Classes\02029a3e2b9f1146d7fad153032eb1d6_JaffaCakes118.VagaaÍ۸»­Ê±´ú\Clsid C:\Windows\SysWOW64\regsvr32.exe N/A
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\02029a3e2b9f1146d7fad153032eb1d6_JaffaCakes118.VagaaÍ۸»­Ê±´ú\Clsid\ = "{42B448E1-483C-4BDB-991E-D10E5D546150}" C:\Windows\SysWOW64\regsvr32.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 3100 wrote to memory of 1944 N/A C:\Windows\system32\regsvr32.exe C:\Windows\SysWOW64\regsvr32.exe
PID 3100 wrote to memory of 1944 N/A C:\Windows\system32\regsvr32.exe C:\Windows\SysWOW64\regsvr32.exe
PID 3100 wrote to memory of 1944 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\02029a3e2b9f1146d7fad153032eb1d6_JaffaCakes118.dll

C:\Windows\SysWOW64\regsvr32.exe

/s C:\Users\Admin\AppData\Local\Temp\02029a3e2b9f1146d7fad153032eb1d6_JaffaCakes118.dll

Network

Country Destination Domain Proto
US 8.8.8.8:53 8.8.8.8.in-addr.arpa udp

Files

N/A