Malware Analysis Report

2025-01-18 21:40

Sample ID 240415-na1n5afc6v
Target f0ebc36bda07f8da4e86a1e835ea1495_JaffaCakes118
SHA256 973176de938bbf50ef01a3f63f3731bd96c0e256e1ebc7a7ad9af2a34ea5fe4a
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

973176de938bbf50ef01a3f63f3731bd96c0e256e1ebc7a7ad9af2a34ea5fe4a

Threat Level: Shows suspicious behavior

The file f0ebc36bda07f8da4e86a1e835ea1495_JaffaCakes118 was found to be: Shows suspicious behavior.

Malicious Activity Summary

adware stealer

Deletes itself

Checks computer location settings

Installs/modifies Browser Helper Object

Drops file in System32 directory

Unsigned PE

Enumerates physical storage devices

Modifies Internet Explorer settings

Modifies registry class

Suspicious use of WriteProcessMemory

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-04-15 11:12

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-04-15 11:12

Reported

2024-04-15 11:14

Platform

win7-20240221-en

Max time kernel

119s

Max time network

122s

Command Line

"C:\Users\Admin\AppData\Local\Temp\f0ebc36bda07f8da4e86a1e835ea1495_JaffaCakes118.exe"

Signatures

Deletes itself

Description Indicator Process Target
N/A N/A C:\Windows\SysWOW64\cmd.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\f0ebc36bda07f8da4e86a1e835ea1495_JaffaCakes118.exe N/A
Key created \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\explorer\Browser Helper Objects\{3298487F-5064-48e9-B5E4-4BF50F4F9006} C:\Users\Admin\AppData\Local\Temp\f0ebc36bda07f8da4e86a1e835ea1495_JaffaCakes118.exe N/A

Drops file in System32 directory

Description Indicator Process Target
File created C:\Windows\SysWOW64\mountr.dll C:\Users\Admin\AppData\Local\Temp\f0ebc36bda07f8da4e86a1e835ea1495_JaffaCakes118.exe N/A
File created C:\Windows\SysWOW64\help.txt C:\Users\Admin\AppData\Local\Temp\f0ebc36bda07f8da4e86a1e835ea1495_JaffaCakes118.exe N/A

Enumerates physical storage devices

Modifies Internet Explorer settings

adware spyware
Description Indicator Process Target
Set value (str) \REGISTRY\USER\S-1-5-21-3787592910-3720486031-2929222812-1000\Software\Microsoft\Internet Explorer\Main\Enable Browser Extensions = "yes" C:\Users\Admin\AppData\Local\Temp\f0ebc36bda07f8da4e86a1e835ea1495_JaffaCakes118.exe N/A

Modifies registry class

Description Indicator Process Target
Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{3298487F-5064-48e9-B5E4-4BF50F4F9006}\InprocServer32 C:\Users\Admin\AppData\Local\Temp\f0ebc36bda07f8da4e86a1e835ea1495_JaffaCakes118.exe N/A
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{3298487F-5064-48e9-B5E4-4BF50F4F9006}\InprocServer32\ = "mountr.dll" C:\Users\Admin\AppData\Local\Temp\f0ebc36bda07f8da4e86a1e835ea1495_JaffaCakes118.exe N/A
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{3298487F-5064-48e9-B5E4-4BF50F4F9006}\InprocServer32\ThreadingModel = "Apartment" C:\Users\Admin\AppData\Local\Temp\f0ebc36bda07f8da4e86a1e835ea1495_JaffaCakes118.exe N/A
Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{3298487F-5064-48e9-B5E4-4BF50F4F9006}\ProgID C:\Users\Admin\AppData\Local\Temp\f0ebc36bda07f8da4e86a1e835ea1495_JaffaCakes118.exe N/A
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{3298487F-5064-48e9-B5E4-4BF50F4F9006}\ProgID\ = "Soap" C:\Users\Admin\AppData\Local\Temp\f0ebc36bda07f8da4e86a1e835ea1495_JaffaCakes118.exe N/A
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{3298487F-5064-48e9-B5E4-4BF50F4F9006}\ = "Editor plugin" C:\Users\Admin\AppData\Local\Temp\f0ebc36bda07f8da4e86a1e835ea1495_JaffaCakes118.exe N/A
Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{3298487F-5064-48e9-B5E4-4BF50F4F9006}\TypeLib C:\Users\Admin\AppData\Local\Temp\f0ebc36bda07f8da4e86a1e835ea1495_JaffaCakes118.exe N/A
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{3298487F-5064-48e9-B5E4-4BF50F4F9006}\TypeLib\ = "{B50621AB-BB43-45f3-93AB-BF12E71FB6AB}" C:\Users\Admin\AppData\Local\Temp\f0ebc36bda07f8da4e86a1e835ea1495_JaffaCakes118.exe N/A
Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{3298487F-5064-48e9-B5E4-4BF50F4F9006} C:\Users\Admin\AppData\Local\Temp\f0ebc36bda07f8da4e86a1e835ea1495_JaffaCakes118.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\f0ebc36bda07f8da4e86a1e835ea1495_JaffaCakes118.exe

"C:\Users\Admin\AppData\Local\Temp\f0ebc36bda07f8da4e86a1e835ea1495_JaffaCakes118.exe"

C:\Windows\SysWOW64\cmd.exe

"C:\Windows\system32\cmd.exe" /c del C:\Users\Admin\AppData\Local\Temp\F0EBC3~1.EXE >> NUL

Network

N/A

Files

N/A

Analysis: behavioral2

Detonation Overview

Submitted

2024-04-15 11:12

Reported

2024-04-15 11:15

Platform

win10v2004-20240412-en

Max time kernel

144s

Max time network

148s

Command Line

"C:\Users\Admin\AppData\Local\Temp\f0ebc36bda07f8da4e86a1e835ea1495_JaffaCakes118.exe"

Signatures

Checks computer location settings

Description Indicator Process Target
Key value queried \REGISTRY\USER\S-1-5-21-3198953144-1466794930-246379610-1000\Control Panel\International\Geo\Nation C:\Users\Admin\AppData\Local\Temp\f0ebc36bda07f8da4e86a1e835ea1495_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\f0ebc36bda07f8da4e86a1e835ea1495_JaffaCakes118.exe N/A
Key created \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Explorer\Browser Helper Objects\{3298487F-5064-48e9-B5E4-4BF50F4F9006} C:\Users\Admin\AppData\Local\Temp\f0ebc36bda07f8da4e86a1e835ea1495_JaffaCakes118.exe N/A

Drops file in System32 directory

Description Indicator Process Target
File created C:\Windows\SysWOW64\help.txt C:\Users\Admin\AppData\Local\Temp\f0ebc36bda07f8da4e86a1e835ea1495_JaffaCakes118.exe N/A
File created C:\Windows\SysWOW64\mountr.dll C:\Users\Admin\AppData\Local\Temp\f0ebc36bda07f8da4e86a1e835ea1495_JaffaCakes118.exe N/A

Enumerates physical storage devices

Modifies Internet Explorer settings

adware spyware
Description Indicator Process Target
Set value (str) \REGISTRY\USER\S-1-5-21-3198953144-1466794930-246379610-1000\SOFTWARE\Microsoft\Internet Explorer\Main\Enable Browser Extensions = "yes" C:\Users\Admin\AppData\Local\Temp\f0ebc36bda07f8da4e86a1e835ea1495_JaffaCakes118.exe N/A

Modifies registry class

Description Indicator Process Target
Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{3298487F-5064-48e9-B5E4-4BF50F4F9006} C:\Users\Admin\AppData\Local\Temp\f0ebc36bda07f8da4e86a1e835ea1495_JaffaCakes118.exe N/A
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{3298487F-5064-48e9-B5E4-4BF50F4F9006}\ = "Editor plugin" C:\Users\Admin\AppData\Local\Temp\f0ebc36bda07f8da4e86a1e835ea1495_JaffaCakes118.exe N/A
Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{3298487F-5064-48e9-B5E4-4BF50F4F9006}\ProgID C:\Users\Admin\AppData\Local\Temp\f0ebc36bda07f8da4e86a1e835ea1495_JaffaCakes118.exe N/A
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{3298487F-5064-48e9-B5E4-4BF50F4F9006}\ProgID\ = "Soap" C:\Users\Admin\AppData\Local\Temp\f0ebc36bda07f8da4e86a1e835ea1495_JaffaCakes118.exe N/A
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{3298487F-5064-48e9-B5E4-4BF50F4F9006}\TypeLib\ = "{B50621AB-BB43-45f3-93AB-BF12E71FB6AB}" C:\Users\Admin\AppData\Local\Temp\f0ebc36bda07f8da4e86a1e835ea1495_JaffaCakes118.exe N/A
Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{3298487F-5064-48e9-B5E4-4BF50F4F9006}\InprocServer32 C:\Users\Admin\AppData\Local\Temp\f0ebc36bda07f8da4e86a1e835ea1495_JaffaCakes118.exe N/A
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{3298487F-5064-48e9-B5E4-4BF50F4F9006}\InprocServer32\ = "mountr.dll" C:\Users\Admin\AppData\Local\Temp\f0ebc36bda07f8da4e86a1e835ea1495_JaffaCakes118.exe N/A
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{3298487F-5064-48e9-B5E4-4BF50F4F9006}\InprocServer32\ThreadingModel = "Apartment" C:\Users\Admin\AppData\Local\Temp\f0ebc36bda07f8da4e86a1e835ea1495_JaffaCakes118.exe N/A
Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{3298487F-5064-48e9-B5E4-4BF50F4F9006}\TypeLib C:\Users\Admin\AppData\Local\Temp\f0ebc36bda07f8da4e86a1e835ea1495_JaffaCakes118.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\f0ebc36bda07f8da4e86a1e835ea1495_JaffaCakes118.exe

"C:\Users\Admin\AppData\Local\Temp\f0ebc36bda07f8da4e86a1e835ea1495_JaffaCakes118.exe"

C:\Windows\SysWOW64\cmd.exe

"C:\Windows\system32\cmd.exe" /c del C:\Users\Admin\AppData\Local\Temp\F0EBC3~1.EXE >> NUL

Network

Country Destination Domain Proto
US 8.8.8.8:53 249.197.17.2.in-addr.arpa udp
US 8.8.8.8:53 93.65.42.20.in-addr.arpa udp

Files

N/A