Malware Analysis Report

2025-01-18 21:59

Sample ID 240622-qhrgjatdmn
Target 0251dfbb3d48c91754793020d55071da_JaffaCakes118
SHA256 1e5c19bcb04b9e214a589c34b53270cbc9ecfd3688f8413829d66b339ad909e3
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

1e5c19bcb04b9e214a589c34b53270cbc9ecfd3688f8413829d66b339ad909e3

Threat Level: Shows suspicious behavior

The file 0251dfbb3d48c91754793020d55071da_JaffaCakes118 was found to be: Shows suspicious behavior.

Malicious Activity Summary

adware stealer

Installs/modifies Browser Helper Object

Drops file in System32 directory

Unsigned PE

Modifies registry class

Suspicious behavior: EnumeratesProcesses

Suspicious use of WriteProcessMemory

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-06-22 13:16

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-06-22 13:16

Reported

2024-06-22 13:18

Platform

win7-20240508-en

Max time kernel

150s

Max time network

120s

Command Line

rundll32.exe C:\Users\Admin\AppData\Local\Temp\0251dfbb3d48c91754793020d55071da_JaffaCakes118.dll,#1

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\{4A041F13-A111-12A3-B0CF-F99818AA68A4} C:\Windows\SysWOW64\rundll32.exe N/A
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\explorer\Browser Helper Objects\{4A041F13-A111-12A3-B0CF-F99818AA68A4}\ = "zxmsawin.dll" C:\Windows\SysWOW64\rundll32.exe N/A

Drops file in System32 directory

Description Indicator Process Target
File opened for modification C:\Windows\SysWOW64\verclsid.exe C:\Windows\SysWOW64\rundll32.exe N/A

Modifies registry class

Description Indicator Process Target
Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{4A041F13-A111-12A3-B0CF-F99818AA68A4} C:\Windows\SysWOW64\rundll32.exe N/A
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{4A041F13-A111-12A3-B0CF-F99818AA68A4}\InprocServer32\ = "C:\\Windows\\SysWow64\\zxmsawin.dll" C:\Windows\SysWOW64\rundll32.exe N/A
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{4A041F13-A111-12A3-B0CF-F99818AA68A4}\InprocServer32\ThreadingModel = "Apartment" C:\Windows\SysWOW64\rundll32.exe N/A
Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{4A041F13-A111-12A3-B0CF-F99818AA68A4}\InprocServer32 C:\Windows\SysWOW64\rundll32.exe N/A
Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node C:\Windows\SysWOW64\rundll32.exe N/A
Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID C:\Windows\SysWOW64\rundll32.exe N/A

Suspicious behavior: EnumeratesProcesses

Description Indicator Process Target
N/A N/A C:\Windows\SysWOW64\rundll32.exe N/A

Processes

C:\Windows\system32\rundll32.exe

rundll32.exe C:\Users\Admin\AppData\Local\Temp\0251dfbb3d48c91754793020d55071da_JaffaCakes118.dll,#1

C:\Windows\SysWOW64\rundll32.exe

rundll32.exe C:\Users\Admin\AppData\Local\Temp\0251dfbb3d48c91754793020d55071da_JaffaCakes118.dll,#1

C:\Windows\SysWOW64\cmd.exe

cmd /c C:\Users\Admin\AppData\Local\Temp\~DFD259400225.bat

Network

N/A

Files

C:\Users\Admin\AppData\Local\Temp\~DFD259400225.bat

MD5 09517fc62284f33e877a276463580bd1
SHA1 0b14fe1db4493818f9de0bf2a56ee5370b8d479a
SHA256 6cc6bbb1f3f754b6894d84130f5f2d86569ac3a603e1632d3cefa028f22b6238
SHA512 1b924dd216d0f38199cc6df215e65ff260aa48fa37aa620dabcbc616f434643bd1f2e617d66b14bd52900214148741565128ba9589782ba582fd7308369f4a4d

Analysis: behavioral2

Detonation Overview

Submitted

2024-06-22 13:16

Reported

2024-06-22 13:18

Platform

win10v2004-20240611-en

Max time kernel

147s

Max time network

150s

Command Line

rundll32.exe C:\Users\Admin\AppData\Local\Temp\0251dfbb3d48c91754793020d55071da_JaffaCakes118.dll,#1

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\{4A041F13-A111-12A3-B0CF-F99818AA68A4} C:\Windows\SysWOW64\rundll32.exe N/A
Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Explorer\Browser Helper Objects\{4A041F13-A111-12A3-B0CF-F99818AA68A4}\ = "zxmsawin.dll" C:\Windows\SysWOW64\rundll32.exe N/A

Drops file in System32 directory

Description Indicator Process Target
File opened for modification C:\Windows\SysWOW64\verclsid.exe C:\Windows\SysWOW64\rundll32.exe N/A

Modifies registry class

Description Indicator Process Target
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{4A041F13-A111-12A3-B0CF-F99818AA68A4}\InprocServer32\ThreadingModel = "Apartment" C:\Windows\SysWOW64\rundll32.exe N/A
Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{4A041F13-A111-12A3-B0CF-F99818AA68A4}\InprocServer32 C:\Windows\SysWOW64\rundll32.exe N/A
Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node C:\Windows\SysWOW64\rundll32.exe N/A
Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID C:\Windows\SysWOW64\rundll32.exe N/A
Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{4A041F13-A111-12A3-B0CF-F99818AA68A4} C:\Windows\SysWOW64\rundll32.exe N/A
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{4A041F13-A111-12A3-B0CF-F99818AA68A4}\InprocServer32\ = "C:\\Windows\\SysWow64\\zxmsawin.dll" C:\Windows\SysWOW64\rundll32.exe N/A

Suspicious behavior: EnumeratesProcesses

Description Indicator Process Target
N/A N/A C:\Windows\SysWOW64\rundll32.exe N/A
N/A N/A C:\Windows\SysWOW64\rundll32.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 3416 wrote to memory of 4448 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 3416 wrote to memory of 4448 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 3416 wrote to memory of 4448 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 4448 wrote to memory of 5012 N/A C:\Windows\SysWOW64\rundll32.exe C:\Windows\SysWOW64\cmd.exe
PID 4448 wrote to memory of 5012 N/A C:\Windows\SysWOW64\rundll32.exe C:\Windows\SysWOW64\cmd.exe
PID 4448 wrote to memory of 5012 N/A C:\Windows\SysWOW64\rundll32.exe C:\Windows\SysWOW64\cmd.exe

Processes

C:\Windows\system32\rundll32.exe

rundll32.exe C:\Users\Admin\AppData\Local\Temp\0251dfbb3d48c91754793020d55071da_JaffaCakes118.dll,#1

C:\Windows\SysWOW64\rundll32.exe

rundll32.exe C:\Users\Admin\AppData\Local\Temp\0251dfbb3d48c91754793020d55071da_JaffaCakes118.dll,#1

C:\Windows\SysWOW64\cmd.exe

C:\Windows\system32\cmd.exe /c C:\Users\Admin\AppData\Local\Temp\~DFD240595375.bat

Network

Country Destination Domain Proto
US 8.8.8.8:53 g.bing.com udp
US 204.79.197.237:443 g.bing.com tcp
US 8.8.8.8:53 133.211.185.52.in-addr.arpa udp
US 8.8.8.8:53 71.31.126.40.in-addr.arpa udp
US 8.8.8.8:53 237.197.79.204.in-addr.arpa udp
BE 88.221.83.194:443 www.bing.com tcp
US 8.8.8.8:53 194.83.221.88.in-addr.arpa udp
US 8.8.8.8:53 26.35.223.20.in-addr.arpa udp
US 8.8.8.8:53 217.106.137.52.in-addr.arpa udp
US 8.8.8.8:53 183.59.114.20.in-addr.arpa udp
US 8.8.8.8:53 171.39.242.20.in-addr.arpa udp
US 8.8.8.8:53 0.204.248.87.in-addr.arpa udp
US 8.8.8.8:53 23.236.111.52.in-addr.arpa udp
US 8.8.8.8:53 55.36.223.20.in-addr.arpa udp
US 8.8.8.8:53 tse1.mm.bing.net udp
US 150.171.28.10:443 tse1.mm.bing.net tcp
US 150.171.28.10:443 tse1.mm.bing.net tcp
US 150.171.28.10:443 tse1.mm.bing.net tcp
US 8.8.8.8:53 10.28.171.150.in-addr.arpa udp
US 8.8.8.8:53 73.239.69.13.in-addr.arpa udp

Files

C:\Users\Admin\AppData\Local\Temp\~DFD240595375.bat

MD5 09517fc62284f33e877a276463580bd1
SHA1 0b14fe1db4493818f9de0bf2a56ee5370b8d479a
SHA256 6cc6bbb1f3f754b6894d84130f5f2d86569ac3a603e1632d3cefa028f22b6238
SHA512 1b924dd216d0f38199cc6df215e65ff260aa48fa37aa620dabcbc616f434643bd1f2e617d66b14bd52900214148741565128ba9589782ba582fd7308369f4a4d