Malware Analysis Report

2025-01-18 22:00

Sample ID 240622-pc3ryaxemh
Target 02109a9c548708dbf6d6b2a1fe3e8372_JaffaCakes118
SHA256 dce25b7e9cab6c3925db0fece17e93d6af1869ea6c6632f2731488a62e25588b
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

dce25b7e9cab6c3925db0fece17e93d6af1869ea6c6632f2731488a62e25588b

Threat Level: Shows suspicious behavior

The file 02109a9c548708dbf6d6b2a1fe3e8372_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 12:11

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-06-22 12:11

Reported

2024-06-22 12:14

Platform

win7-20240508-en

Max time kernel

122s

Max time network

123s

Command Line

regsvr32 /s C:\Users\Admin\AppData\Local\Temp\02109a9c548708dbf6d6b2a1fe3e8372_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\{B69F34DD-F0F9-42DC-9EDD-957187DA688D}! C:\Windows\SysWOW64\regsvr32.exe N/A
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\explorer\Browser Helper Objects\{B69F34DD-F0F9-42DC-9EDD-957187DA688D}!\ = "360°²È«ÎÀÊ¿" C:\Windows\SysWOW64\regsvr32.exe N/A

Modifies registry class

Description Indicator Process Target
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\02109a9c548708dbf6d6b2a1fe3e8372_JaffaCakes118.360SafeMode\ = "Safemon class" C:\Windows\SysWOW64\regsvr32.exe N/A
Key created \REGISTRY\MACHINE\SOFTWARE\Classes\02109a9c548708dbf6d6b2a1fe3e8372_JaffaCakes118.360SafeMode\Clsid C:\Windows\SysWOW64\regsvr32.exe N/A
Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{B69F34DD-F0F9-42DC-9EDD-957187DA688D}\ProgID C:\Windows\SysWOW64\regsvr32.exe N/A
Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{B69F34DD-F0F9-42DC-9EDD-957187DA688D} C:\Windows\SysWOW64\regsvr32.exe N/A
Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{B69F34DD-F0F9-42DC-9EDD-957187DA688D}\InprocServer32 C:\Windows\SysWOW64\regsvr32.exe N/A
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{B69F34DD-F0F9-42DC-9EDD-957187DA688D}\InprocServer32\ThreadingModel = "Apartment" C:\Windows\SysWOW64\regsvr32.exe N/A
Key created \REGISTRY\MACHINE\SOFTWARE\Classes\02109a9c548708dbf6d6b2a1fe3e8372_JaffaCakes118.360SafeMode C:\Windows\SysWOW64\regsvr32.exe N/A
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\02109a9c548708dbf6d6b2a1fe3e8372_JaffaCakes118.360SafeMode\Clsid\ = "{B69F34DD-F0F9-42DC-9EDD-957187DA688D}" C:\Windows\SysWOW64\regsvr32.exe N/A
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{B69F34DD-F0F9-42DC-9EDD-957187DA688D}\ProgID\ = "02109a9c548708dbf6d6b2a1fe3e8372_JaffaCakes118.360SafeMode" C:\Windows\SysWOW64\regsvr32.exe N/A
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{B69F34DD-F0F9-42DC-9EDD-957187DA688D}\ = "Safemon class" C:\Windows\SysWOW64\regsvr32.exe N/A
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{B69F34DD-F0F9-42DC-9EDD-957187DA688D}\InprocServer32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\02109a9c548708dbf6d6b2a1fe3e8372_JaffaCakes118.dll" C:\Windows\SysWOW64\regsvr32.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 2056 wrote to memory of 2076 N/A C:\Windows\system32\regsvr32.exe C:\Windows\SysWOW64\regsvr32.exe
PID 2056 wrote to memory of 2076 N/A C:\Windows\system32\regsvr32.exe C:\Windows\SysWOW64\regsvr32.exe
PID 2056 wrote to memory of 2076 N/A C:\Windows\system32\regsvr32.exe C:\Windows\SysWOW64\regsvr32.exe
PID 2056 wrote to memory of 2076 N/A C:\Windows\system32\regsvr32.exe C:\Windows\SysWOW64\regsvr32.exe
PID 2056 wrote to memory of 2076 N/A C:\Windows\system32\regsvr32.exe C:\Windows\SysWOW64\regsvr32.exe
PID 2056 wrote to memory of 2076 N/A C:\Windows\system32\regsvr32.exe C:\Windows\SysWOW64\regsvr32.exe
PID 2056 wrote to memory of 2076 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\02109a9c548708dbf6d6b2a1fe3e8372_JaffaCakes118.dll

C:\Windows\SysWOW64\regsvr32.exe

/s C:\Users\Admin\AppData\Local\Temp\02109a9c548708dbf6d6b2a1fe3e8372_JaffaCakes118.dll

Network

N/A

Files

memory/2076-0-0x0000000000340000-0x00000000003B4000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-06-22 12:11

Reported

2024-06-22 12:14

Platform

win10v2004-20240226-en

Max time kernel

145s

Max time network

151s

Command Line

regsvr32 /s C:\Users\Admin\AppData\Local\Temp\02109a9c548708dbf6d6b2a1fe3e8372_JaffaCakes118.dll

Signatures

Installs/modifies Browser Helper Object

stealer adware
Description Indicator Process Target
Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Explorer\Browser Helper Objects\{B69F34DD-F0F9-42DC-9EDD-957187DA688D}!\ = "360°²È«ÎÀÊ¿" C:\Windows\SysWOW64\regsvr32.exe N/A
Key created \REGISTRY\MACHINE\Software\WOW6432Node\Microsoft\Windows\CurrentVersion\explorer\Browser Helper Objects\{B69F34DD-F0F9-42DC-9EDD-957187DA688D}! C:\Windows\SysWOW64\regsvr32.exe N/A

Modifies registry class

Description Indicator Process Target
Key created \REGISTRY\MACHINE\SOFTWARE\Classes\02109a9c548708dbf6d6b2a1fe3e8372_JaffaCakes118.360SafeMode C:\Windows\SysWOW64\regsvr32.exe N/A
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\02109a9c548708dbf6d6b2a1fe3e8372_JaffaCakes118.360SafeMode\ = "Safemon class" C:\Windows\SysWOW64\regsvr32.exe N/A
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\02109a9c548708dbf6d6b2a1fe3e8372_JaffaCakes118.360SafeMode\Clsid\ = "{B69F34DD-F0F9-42DC-9EDD-957187DA688D}" C:\Windows\SysWOW64\regsvr32.exe N/A
Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{B69F34DD-F0F9-42DC-9EDD-957187DA688D}\ProgID C:\Windows\SysWOW64\regsvr32.exe N/A
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{B69F34DD-F0F9-42DC-9EDD-957187DA688D}\ProgID\ = "02109a9c548708dbf6d6b2a1fe3e8372_JaffaCakes118.360SafeMode" C:\Windows\SysWOW64\regsvr32.exe N/A
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{B69F34DD-F0F9-42DC-9EDD-957187DA688D}\ = "Safemon class" C:\Windows\SysWOW64\regsvr32.exe N/A
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{B69F34DD-F0F9-42DC-9EDD-957187DA688D}\InprocServer32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\02109a9c548708dbf6d6b2a1fe3e8372_JaffaCakes118.dll" C:\Windows\SysWOW64\regsvr32.exe N/A
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{B69F34DD-F0F9-42DC-9EDD-957187DA688D}\InprocServer32\ThreadingModel = "Apartment" C:\Windows\SysWOW64\regsvr32.exe N/A
Key created \REGISTRY\MACHINE\SOFTWARE\Classes\02109a9c548708dbf6d6b2a1fe3e8372_JaffaCakes118.360SafeMode\Clsid C:\Windows\SysWOW64\regsvr32.exe N/A
Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{B69F34DD-F0F9-42DC-9EDD-957187DA688D} C:\Windows\SysWOW64\regsvr32.exe N/A
Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{B69F34DD-F0F9-42DC-9EDD-957187DA688D}\InprocServer32 C:\Windows\SysWOW64\regsvr32.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 5092 wrote to memory of 4416 N/A C:\Windows\system32\regsvr32.exe C:\Windows\SysWOW64\regsvr32.exe
PID 5092 wrote to memory of 4416 N/A C:\Windows\system32\regsvr32.exe C:\Windows\SysWOW64\regsvr32.exe
PID 5092 wrote to memory of 4416 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\02109a9c548708dbf6d6b2a1fe3e8372_JaffaCakes118.dll

C:\Windows\SysWOW64\regsvr32.exe

/s C:\Users\Admin\AppData\Local\Temp\02109a9c548708dbf6d6b2a1fe3e8372_JaffaCakes118.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=1424 --field-trial-handle=2180,i,12780723798465539942,12010519452607841069,262144 --variations-seed-version /prefetch:8

Network

Country Destination Domain Proto
US 8.8.8.8:53 149.220.183.52.in-addr.arpa udp
US 8.8.8.8:53 144.107.17.2.in-addr.arpa udp
US 8.8.8.8:53 76.32.126.40.in-addr.arpa udp
US 8.8.8.8:53 28.118.140.52.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 8.8.8.8:53 241.150.49.20.in-addr.arpa udp
US 8.8.8.8:53 172.214.232.199.in-addr.arpa udp
US 8.8.8.8:53 29.243.111.52.in-addr.arpa udp
US 8.8.8.8:53 203.107.17.2.in-addr.arpa udp
US 8.8.8.8:53 chromewebstore.googleapis.com udp
US 8.8.8.8:53 chromewebstore.googleapis.com udp
GB 216.58.212.202:443 chromewebstore.googleapis.com tcp
US 8.8.8.8:53 202.212.58.216.in-addr.arpa udp
US 8.8.8.8:53 93.65.42.20.in-addr.arpa udp

Files

memory/4416-0-0x0000000000BA0000-0x0000000000C14000-memory.dmp