Malware Analysis Report

2025-01-18 21:37

Sample ID 240415-p9jqbshc3x
Target f11d371fc2be954fb7ec5e58006a3dfb_JaffaCakes118
SHA256 203838012641f5c0f664a1ecc218fc55e65b7404e353d0a6f9de005f1f5a5877
Tags
adware stealer
score
7/10

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
7/10

SHA256

203838012641f5c0f664a1ecc218fc55e65b7404e353d0a6f9de005f1f5a5877

Threat Level: Shows suspicious behavior

The file f11d371fc2be954fb7ec5e58006a3dfb_JaffaCakes118 was found to be: Shows suspicious behavior.

Malicious Activity Summary

adware stealer

Checks computer location settings

Installs/modifies Browser Helper Object

Drops file in System32 directory

Unsigned PE

Program crash

Enumerates physical storage devices

Suspicious use of WriteProcessMemory

Modifies Internet Explorer settings

Modifies registry class

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-04-15 13:01

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-04-15 13:01

Reported

2024-04-15 13:04

Platform

win7-20231129-en

Max time kernel

117s

Max time network

118s

Command Line

"C:\Users\Admin\AppData\Local\Temp\f11d371fc2be954fb7ec5e58006a3dfb_JaffaCakes118.exe"

Signatures

Processes

C:\Users\Admin\AppData\Local\Temp\f11d371fc2be954fb7ec5e58006a3dfb_JaffaCakes118.exe

"C:\Users\Admin\AppData\Local\Temp\f11d371fc2be954fb7ec5e58006a3dfb_JaffaCakes118.exe"

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 2268 -s 44

Network

N/A

Files

N/A

Analysis: behavioral2

Detonation Overview

Submitted

2024-04-15 13:01

Reported

2024-04-15 13:04

Platform

win10v2004-20240226-en

Max time kernel

139s

Max time network

165s

Command Line

"C:\Users\Admin\AppData\Local\Temp\f11d371fc2be954fb7ec5e58006a3dfb_JaffaCakes118.exe"

Signatures

Checks computer location settings

Description Indicator Process Target
Key value queried \REGISTRY\USER\S-1-5-21-3808065738-1666277613-1125846146-1000\Control Panel\International\Geo\Nation C:\Users\Admin\AppData\Local\Temp\f11d371fc2be954fb7ec5e58006a3dfb_JaffaCakes118.exe N/A

Installs/modifies Browser Helper Object

stealer adware
Description Indicator Process Target
Key created \REGISTRY\MACHINE\Software\WOW6432Node\Microsoft\Windows\CurrentVersion\Explorer\Browser Helper Objects C:\Users\Admin\AppData\Local\Temp\f11d371fc2be954fb7ec5e58006a3dfb_JaffaCakes118.exe N/A
Key created \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Explorer\Browser Helper Objects\{4C579E8B-92F1-44d1-9444-66A4355E9386} C:\Users\Admin\AppData\Local\Temp\f11d371fc2be954fb7ec5e58006a3dfb_JaffaCakes118.exe N/A

Drops file in System32 directory

Description Indicator Process Target
File created C:\Windows\SysWOW64\conf.dat C:\Users\Admin\AppData\Local\Temp\f11d371fc2be954fb7ec5e58006a3dfb_JaffaCakes118.exe N/A
File created C:\Windows\SysWOW64\rozmchild.dll C:\Users\Admin\AppData\Local\Temp\f11d371fc2be954fb7ec5e58006a3dfb_JaffaCakes118.exe N/A

Enumerates physical storage devices

Modifies Internet Explorer settings

adware spyware
Description Indicator Process Target
Set value (str) \REGISTRY\USER\S-1-5-21-3808065738-1666277613-1125846146-1000\SOFTWARE\Microsoft\Internet Explorer\Main\Enable Browser Extensions = "yes" C:\Users\Admin\AppData\Local\Temp\f11d371fc2be954fb7ec5e58006a3dfb_JaffaCakes118.exe N/A

Modifies registry class

Description Indicator Process Target
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{4C579E8B-92F1-44d1-9444-66A4355E9386}\ = "Google Module" C:\Users\Admin\AppData\Local\Temp\f11d371fc2be954fb7ec5e58006a3dfb_JaffaCakes118.exe N/A
Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{4C579E8B-92F1-44d1-9444-66A4355E9386}\InprocServer32 C:\Users\Admin\AppData\Local\Temp\f11d371fc2be954fb7ec5e58006a3dfb_JaffaCakes118.exe N/A
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{4C579E8B-92F1-44d1-9444-66A4355E9386}\InprocServer32\ = "rozmchild.dll" C:\Users\Admin\AppData\Local\Temp\f11d371fc2be954fb7ec5e58006a3dfb_JaffaCakes118.exe N/A
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{4C579E8B-92F1-44d1-9444-66A4355E9386}\TypeLib\ = "{A78DE3EE-4D19-4096-81E1-A06B1E862B90}" C:\Users\Admin\AppData\Local\Temp\f11d371fc2be954fb7ec5e58006a3dfb_JaffaCakes118.exe N/A
Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{4C579E8B-92F1-44d1-9444-66A4355E9386} C:\Users\Admin\AppData\Local\Temp\f11d371fc2be954fb7ec5e58006a3dfb_JaffaCakes118.exe N/A
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{4C579E8B-92F1-44d1-9444-66A4355E9386}\InprocServer32\ThreadingModel = "Apartment" C:\Users\Admin\AppData\Local\Temp\f11d371fc2be954fb7ec5e58006a3dfb_JaffaCakes118.exe N/A
Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{4C579E8B-92F1-44d1-9444-66A4355E9386}\ProgID C:\Users\Admin\AppData\Local\Temp\f11d371fc2be954fb7ec5e58006a3dfb_JaffaCakes118.exe N/A
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{4C579E8B-92F1-44d1-9444-66A4355E9386}\ProgID\ = "RITLAB.1" C:\Users\Admin\AppData\Local\Temp\f11d371fc2be954fb7ec5e58006a3dfb_JaffaCakes118.exe N/A
Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{4C579E8B-92F1-44d1-9444-66A4355E9386}\TypeLib C:\Users\Admin\AppData\Local\Temp\f11d371fc2be954fb7ec5e58006a3dfb_JaffaCakes118.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\f11d371fc2be954fb7ec5e58006a3dfb_JaffaCakes118.exe

"C:\Users\Admin\AppData\Local\Temp\f11d371fc2be954fb7ec5e58006a3dfb_JaffaCakes118.exe"

C:\Windows\SysWOW64\cmd.exe

"C:\Windows\system32\cmd.exe" /c del C:\Users\Admin\AppData\Local\Temp\F11D37~1.EXE >> NUL

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=1316 --field-trial-handle=2284,i,9807419199535700662,2319175108930815708,262144 --variations-seed-version /prefetch:8

Network

Country Destination Domain Proto
US 8.8.8.8:53 99.56.20.217.in-addr.arpa udp
US 8.8.8.8:53 241.150.49.20.in-addr.arpa udp
US 13.107.253.64:443 tcp
US 8.8.8.8:53 86.23.85.13.in-addr.arpa udp
US 8.8.8.8:53 206.23.85.13.in-addr.arpa udp
US 8.8.8.8:53 240.221.184.93.in-addr.arpa udp
US 8.8.8.8:53 138.32.126.40.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 28.118.140.52.in-addr.arpa udp
US 8.8.8.8:53 43.229.111.52.in-addr.arpa udp
US 8.8.8.8:53 101.58.20.217.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 142.250.200.10:443 chromewebstore.googleapis.com tcp
US 8.8.8.8:53 10.200.250.142.in-addr.arpa udp
US 8.8.8.8:53 25.173.189.20.in-addr.arpa udp

Files

N/A