Malware Analysis Report

2025-01-18 21:58

Sample ID 240622-paw7daxdmh
Target 020c4181016f94950e4678baee8560a6_JaffaCakes118
SHA256 43479b2ed9d84beb9e6a67ddf0dd9b6a37935867eace2776744a23e2e741b9f4
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

43479b2ed9d84beb9e6a67ddf0dd9b6a37935867eace2776744a23e2e741b9f4

Threat Level: Shows suspicious behavior

The file 020c4181016f94950e4678baee8560a6_JaffaCakes118 was found to be: Shows suspicious behavior.

Malicious Activity Summary

adware stealer

Installs/modifies Browser Helper Object

Unsigned PE

Suspicious use of WriteProcessMemory

Modifies Internet Explorer settings

Modifies registry class

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-06-22 12:08

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-06-22 12:08

Reported

2024-06-22 12:10

Platform

win7-20240221-en

Max time kernel

120s

Max time network

120s

Command Line

regsvr32 /s C:\Users\Admin\AppData\Local\Temp\020c4181016f94950e4678baee8560a6_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\{4875804E-0069-522A-9E54-E55312547FFD} C:\Windows\SysWOW64\regsvr32.exe N/A
Set value (int) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\explorer\Browser Helper Objects\{4875804E-0069-522A-9E54-E55312547FFD}\NoExplorer = "1" C:\Windows\SysWOW64\regsvr32.exe N/A

Modifies Internet Explorer settings

adware spyware
Description Indicator Process Target
Key created \REGISTRY\USER\S-1-5-21-2297530677-1229052932-2803917579-1000\SOFTWARE\Microsoft\Internet Explorer\Explorer Bars\{1A7B1C62-3A15-1A3F-6C1B-966BF1CEC825} C:\Windows\SysWOW64\regsvr32.exe N/A
Key created \REGISTRY\USER\S-1-5-21-2297530677-1229052932-2803917579-1000\Software\Microsoft\Internet Explorer\Explorer Bars C:\Windows\SysWOW64\regsvr32.exe N/A
Key created \REGISTRY\USER\S-1-5-21-2297530677-1229052932-2803917579-1000\Software\Microsoft\Internet Explorer\Explorer Bars\{1A7B1C62-3A15-1A3F-6C1B-966BF1CEC825} C:\Windows\SysWOW64\regsvr32.exe N/A

Modifies registry class

Description Indicator Process Target
Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{4875804E-0069-522A-9E54-E55312547FFD} C:\Windows\SysWOW64\regsvr32.exe N/A
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{4875804E-0069-522A-9E54-E55312547FFD}\InProcServer32\ThreadingModel = "Apartment" C:\Windows\SysWOW64\regsvr32.exe N/A
Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{1A7B1C62-3A15-1A3F-6C1B-966BF1CEC825} C:\Windows\SysWOW64\regsvr32.exe N/A
Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{1A7B1C62-3A15-1A3F-6C1B-966BF1CEC825}\Implemented Categories C:\Windows\SysWOW64\regsvr32.exe N/A
Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{1A7B1C62-3A15-1A3F-6C1B-966BF1CEC825}\Programmable C:\Windows\SysWOW64\regsvr32.exe N/A
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{4875804E-0069-522A-9E54-E55312547FFD}\ = "searchersmart search enhancer" C:\Windows\SysWOW64\regsvr32.exe N/A
Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{1A7B1C62-3A15-1A3F-6C1B-966BF1CEC825}\InProcServer32 C:\Windows\SysWOW64\regsvr32.exe N/A
Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{1A7B1C62-3A15-1A3F-6C1B-966BF1CEC825}\Implemented Categories\{00021493-0000-0000-C000-000000000046} C:\Windows\SysWOW64\regsvr32.exe N/A
Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node C:\Windows\SysWOW64\regsvr32.exe N/A
Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID C:\Windows\SysWOW64\regsvr32.exe N/A
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{1A7B1C62-3A15-1A3F-6C1B-966BF1CEC825}\InProcServer32\ThreadingModel = "Apartment" C:\Windows\SysWOW64\regsvr32.exe N/A
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{1A7B1C62-3A15-1A3F-6C1B-966BF1CEC825}\InProcServer32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\020c4181016f94950e4678baee8560a6_JaffaCakes118.dll" C:\Windows\SysWOW64\regsvr32.exe N/A
Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{4875804E-0069-522A-9E54-E55312547FFD}\InProcServer32 C:\Windows\SysWOW64\regsvr32.exe N/A
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{4875804E-0069-522A-9E54-E55312547FFD}\InProcServer32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\020c4181016f94950e4678baee8560a6_JaffaCakes118.dll" C:\Windows\SysWOW64\regsvr32.exe N/A
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{1A7B1C62-3A15-1A3F-6C1B-966BF1CEC825}\ = "Search panel" C:\Windows\SysWOW64\regsvr32.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 1812 wrote to memory of 2932 N/A C:\Windows\system32\regsvr32.exe C:\Windows\SysWOW64\regsvr32.exe
PID 1812 wrote to memory of 2932 N/A C:\Windows\system32\regsvr32.exe C:\Windows\SysWOW64\regsvr32.exe
PID 1812 wrote to memory of 2932 N/A C:\Windows\system32\regsvr32.exe C:\Windows\SysWOW64\regsvr32.exe
PID 1812 wrote to memory of 2932 N/A C:\Windows\system32\regsvr32.exe C:\Windows\SysWOW64\regsvr32.exe
PID 1812 wrote to memory of 2932 N/A C:\Windows\system32\regsvr32.exe C:\Windows\SysWOW64\regsvr32.exe
PID 1812 wrote to memory of 2932 N/A C:\Windows\system32\regsvr32.exe C:\Windows\SysWOW64\regsvr32.exe
PID 1812 wrote to memory of 2932 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\020c4181016f94950e4678baee8560a6_JaffaCakes118.dll

C:\Windows\SysWOW64\regsvr32.exe

/s C:\Users\Admin\AppData\Local\Temp\020c4181016f94950e4678baee8560a6_JaffaCakes118.dll

Network

N/A

Files

N/A

Analysis: behavioral2

Detonation Overview

Submitted

2024-06-22 12:08

Reported

2024-06-22 12:10

Platform

win10v2004-20240508-en

Max time kernel

51s

Max time network

51s

Command Line

regsvr32 /s C:\Users\Admin\AppData\Local\Temp\020c4181016f94950e4678baee8560a6_JaffaCakes118.dll

Signatures

Installs/modifies Browser Helper Object

stealer adware
Description Indicator Process Target
Set value (int) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Explorer\Browser Helper Objects\{F8D5593A-E84E-6905-055E-1426334C16E7}\NoExplorer = "1" C:\Windows\SysWOW64\regsvr32.exe N/A
Key created \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Explorer\Browser Helper Objects\{F8D5593A-E84E-6905-055E-1426334C16E7} C:\Windows\SysWOW64\regsvr32.exe N/A

Modifies Internet Explorer settings

adware spyware
Description Indicator Process Target
Key created \REGISTRY\USER\S-1-5-21-1337824034-2731376981-3755436523-1000\SOFTWARE\Microsoft\Internet Explorer\Explorer Bars\{916D7FD8-F95B-F029-9C53-66426464C5E0} C:\Windows\SysWOW64\regsvr32.exe N/A
Key created \REGISTRY\USER\S-1-5-21-1337824034-2731376981-3755436523-1000\SOFTWARE\Microsoft\Internet Explorer\Explorer Bars C:\Windows\SysWOW64\regsvr32.exe N/A

Modifies registry class

Description Indicator Process Target
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{F8D5593A-E84E-6905-055E-1426334C16E7}\ = "searchersmart search enhancer" C:\Windows\SysWOW64\regsvr32.exe N/A
Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{F8D5593A-E84E-6905-055E-1426334C16E7}\InProcServer32 C:\Windows\SysWOW64\regsvr32.exe N/A
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{F8D5593A-E84E-6905-055E-1426334C16E7}\InProcServer32\ThreadingModel = "Apartment" C:\Windows\SysWOW64\regsvr32.exe N/A
Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{916D7FD8-F95B-F029-9C53-66426464C5E0} C:\Windows\SysWOW64\regsvr32.exe N/A
Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{916D7FD8-F95B-F029-9C53-66426464C5E0}\InProcServer32 C:\Windows\SysWOW64\regsvr32.exe N/A
Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{916D7FD8-F95B-F029-9C53-66426464C5E0}\Implemented Categories C:\Windows\SysWOW64\regsvr32.exe N/A
Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node C:\Windows\SysWOW64\regsvr32.exe N/A
Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID C:\Windows\SysWOW64\regsvr32.exe N/A
Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{F8D5593A-E84E-6905-055E-1426334C16E7} C:\Windows\SysWOW64\regsvr32.exe N/A
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{916D7FD8-F95B-F029-9C53-66426464C5E0}\ = "Search panel" C:\Windows\SysWOW64\regsvr32.exe N/A
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{916D7FD8-F95B-F029-9C53-66426464C5E0}\InProcServer32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\020c4181016f94950e4678baee8560a6_JaffaCakes118.dll" C:\Windows\SysWOW64\regsvr32.exe N/A
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{F8D5593A-E84E-6905-055E-1426334C16E7}\InProcServer32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\020c4181016f94950e4678baee8560a6_JaffaCakes118.dll" C:\Windows\SysWOW64\regsvr32.exe N/A
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{916D7FD8-F95B-F029-9C53-66426464C5E0}\InProcServer32\ThreadingModel = "Apartment" C:\Windows\SysWOW64\regsvr32.exe N/A
Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{916D7FD8-F95B-F029-9C53-66426464C5E0}\Implemented Categories\{00021493-0000-0000-C000-000000000046} C:\Windows\SysWOW64\regsvr32.exe N/A
Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{916D7FD8-F95B-F029-9C53-66426464C5E0}\Programmable C:\Windows\SysWOW64\regsvr32.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 3176 wrote to memory of 1428 N/A C:\Windows\system32\regsvr32.exe C:\Windows\SysWOW64\regsvr32.exe
PID 3176 wrote to memory of 1428 N/A C:\Windows\system32\regsvr32.exe C:\Windows\SysWOW64\regsvr32.exe
PID 3176 wrote to memory of 1428 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\020c4181016f94950e4678baee8560a6_JaffaCakes118.dll

C:\Windows\SysWOW64\regsvr32.exe

/s C:\Users\Admin\AppData\Local\Temp\020c4181016f94950e4678baee8560a6_JaffaCakes118.dll

Network

Files

N/A