Malware Analysis Report

2025-01-18 22:02

Sample ID 240622-ege7bs1arj
Target 0125d6203ff501a0b0adc3715ca9d229_JaffaCakes118
SHA256 5a2d529c4a16219f7db2637348cbed6c177cb642b1c7b788963ccc5ae3bb48a2
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

5a2d529c4a16219f7db2637348cbed6c177cb642b1c7b788963ccc5ae3bb48a2

Threat Level: Shows suspicious behavior

The file 0125d6203ff501a0b0adc3715ca9d229_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 03:54

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-06-22 03:54

Reported

2024-06-22 03:57

Platform

win7-20240508-en

Max time kernel

121s

Max time network

122s

Command Line

regsvr32 /s C:\Users\Admin\AppData\Local\Temp\0125d6203ff501a0b0adc3715ca9d229_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\{402FF801-876C-4A2A-85D6-F0681D445F7A} C:\Windows\SysWOW64\regsvr32.exe N/A
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\explorer\Browser Helper Objects\{402FF801-876C-4A2A-85D6-F0681D445F7A}\ C:\Windows\SysWOW64\regsvr32.exe N/A

Modifies registry class

Description Indicator Process Target
Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{402FF801-876C-4A2A-85D6-F0681D445F7A} C:\Windows\SysWOW64\regsvr32.exe N/A
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{402FF801-876C-4A2A-85D6-F0681D445F7A}\ = "Ö§³Ö¶àÖÖÐ\u00adÒéµÄBT" C:\Windows\SysWOW64\regsvr32.exe N/A
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{402FF801-876C-4A2A-85D6-F0681D445F7A}\InprocServer32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\0125d6203ff501a0b0adc3715ca9d229_JaffaCakes118.dll" C:\Windows\SysWOW64\regsvr32.exe N/A
Key created \REGISTRY\MACHINE\SOFTWARE\Classes\0125d6203ff501a0b0adc3715ca9d229_JaffaCakes118.VagaaÍ۸»­Ê±´ú C:\Windows\SysWOW64\regsvr32.exe N/A
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\0125d6203ff501a0b0adc3715ca9d229_JaffaCakes118.VagaaÍ۸»­Ê±´ú\Clsid\ = "{402FF801-876C-4A2A-85D6-F0681D445F7A}" C:\Windows\SysWOW64\regsvr32.exe N/A
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{402FF801-876C-4A2A-85D6-F0681D445F7A}\ProgID\ = "0125d6203ff501a0b0adc3715ca9d229_JaffaCakes118.VagaaÍ۸»\u00adʱ´ú" C:\Windows\SysWOW64\regsvr32.exe N/A
Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{402FF801-876C-4A2A-85D6-F0681D445F7A}\InprocServer32 C:\Windows\SysWOW64\regsvr32.exe N/A
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{402FF801-876C-4A2A-85D6-F0681D445F7A}\InprocServer32\ThreadingModel = "Apartment" C:\Windows\SysWOW64\regsvr32.exe N/A
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\0125d6203ff501a0b0adc3715ca9d229_JaffaCakes118.VagaaÍ۸»­Ê±´ú\ = "Ö§³Ö¶àÖÖÐ\u00adÒéµÄBT" C:\Windows\SysWOW64\regsvr32.exe N/A
Key created \REGISTRY\MACHINE\SOFTWARE\Classes\0125d6203ff501a0b0adc3715ca9d229_JaffaCakes118.VagaaÍ۸»­Ê±´ú\Clsid C:\Windows\SysWOW64\regsvr32.exe N/A
Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{402FF801-876C-4A2A-85D6-F0681D445F7A}\ProgID C:\Windows\SysWOW64\regsvr32.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 1192 wrote to memory of 2036 N/A C:\Windows\system32\regsvr32.exe C:\Windows\SysWOW64\regsvr32.exe
PID 1192 wrote to memory of 2036 N/A C:\Windows\system32\regsvr32.exe C:\Windows\SysWOW64\regsvr32.exe
PID 1192 wrote to memory of 2036 N/A C:\Windows\system32\regsvr32.exe C:\Windows\SysWOW64\regsvr32.exe
PID 1192 wrote to memory of 2036 N/A C:\Windows\system32\regsvr32.exe C:\Windows\SysWOW64\regsvr32.exe
PID 1192 wrote to memory of 2036 N/A C:\Windows\system32\regsvr32.exe C:\Windows\SysWOW64\regsvr32.exe
PID 1192 wrote to memory of 2036 N/A C:\Windows\system32\regsvr32.exe C:\Windows\SysWOW64\regsvr32.exe
PID 1192 wrote to memory of 2036 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\0125d6203ff501a0b0adc3715ca9d229_JaffaCakes118.dll

C:\Windows\SysWOW64\regsvr32.exe

/s C:\Users\Admin\AppData\Local\Temp\0125d6203ff501a0b0adc3715ca9d229_JaffaCakes118.dll

Network

N/A

Files

memory/2036-0-0x00000000002C0000-0x000000000033C000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-06-22 03:54

Reported

2024-06-22 03:57

Platform

win10v2004-20240508-en

Max time kernel

51s

Max time network

51s

Command Line

regsvr32 /s C:\Users\Admin\AppData\Local\Temp\0125d6203ff501a0b0adc3715ca9d229_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\{402FF801-876C-4A2A-85D6-F0681D445F7A} C:\Windows\SysWOW64\regsvr32.exe N/A
Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Explorer\Browser Helper Objects\{402FF801-876C-4A2A-85D6-F0681D445F7A}\ C:\Windows\SysWOW64\regsvr32.exe N/A

Modifies registry class

Description Indicator Process Target
Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{402FF801-876C-4A2A-85D6-F0681D445F7A} C:\Windows\SysWOW64\regsvr32.exe N/A
Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{402FF801-876C-4A2A-85D6-F0681D445F7A}\InprocServer32 C:\Windows\SysWOW64\regsvr32.exe N/A
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{402FF801-876C-4A2A-85D6-F0681D445F7A}\InprocServer32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\0125d6203ff501a0b0adc3715ca9d229_JaffaCakes118.dll" C:\Windows\SysWOW64\regsvr32.exe N/A
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{402FF801-876C-4A2A-85D6-F0681D445F7A}\InprocServer32\ThreadingModel = "Apartment" C:\Windows\SysWOW64\regsvr32.exe N/A
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\0125d6203ff501a0b0adc3715ca9d229_JaffaCakes118.VagaaÍ۸»­Ê±´ú\ = "Ö§³Ö¶àÖÖÐ\u00adÒéµÄBT" C:\Windows\SysWOW64\regsvr32.exe N/A
Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{402FF801-876C-4A2A-85D6-F0681D445F7A}\ProgID C:\Windows\SysWOW64\regsvr32.exe N/A
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{402FF801-876C-4A2A-85D6-F0681D445F7A}\ = "Ö§³Ö¶àÖÖÐ\u00adÒéµÄBT" C:\Windows\SysWOW64\regsvr32.exe N/A
Key created \REGISTRY\MACHINE\SOFTWARE\Classes\0125d6203ff501a0b0adc3715ca9d229_JaffaCakes118.VagaaÍ۸»­Ê±´ú C:\Windows\SysWOW64\regsvr32.exe N/A
Key created \REGISTRY\MACHINE\SOFTWARE\Classes\0125d6203ff501a0b0adc3715ca9d229_JaffaCakes118.VagaaÍ۸»­Ê±´ú\Clsid C:\Windows\SysWOW64\regsvr32.exe N/A
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\0125d6203ff501a0b0adc3715ca9d229_JaffaCakes118.VagaaÍ۸»­Ê±´ú\Clsid\ = "{402FF801-876C-4A2A-85D6-F0681D445F7A}" C:\Windows\SysWOW64\regsvr32.exe N/A
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{402FF801-876C-4A2A-85D6-F0681D445F7A}\ProgID\ = "0125d6203ff501a0b0adc3715ca9d229_JaffaCakes118.VagaaÍ۸»\u00adʱ´ú" C:\Windows\SysWOW64\regsvr32.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 4996 wrote to memory of 228 N/A C:\Windows\system32\regsvr32.exe C:\Windows\SysWOW64\regsvr32.exe
PID 4996 wrote to memory of 228 N/A C:\Windows\system32\regsvr32.exe C:\Windows\SysWOW64\regsvr32.exe
PID 4996 wrote to memory of 228 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\0125d6203ff501a0b0adc3715ca9d229_JaffaCakes118.dll

C:\Windows\SysWOW64\regsvr32.exe

/s C:\Users\Admin\AppData\Local\Temp\0125d6203ff501a0b0adc3715ca9d229_JaffaCakes118.dll

Network

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

Files

memory/228-0-0x00000000009E0000-0x0000000000A5C000-memory.dmp