Malware Analysis Report

2025-08-05 16:58

Sample ID 250127-zb56savjgy
Target JaffaCakes118_4371102d39fc36320b245fe979a469dd
SHA256 2c707adbbe4666943f40b2955b9f678e481d791af4c5a7f87c4442b51b13e3e6
Tags
upx discovery persistence
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

2c707adbbe4666943f40b2955b9f678e481d791af4c5a7f87c4442b51b13e3e6

Threat Level: Shows suspicious behavior

The file JaffaCakes118_4371102d39fc36320b245fe979a469dd was found to be: Shows suspicious behavior.

Malicious Activity Summary

upx discovery persistence

Adds Run key to start application

UPX packed file

Unsigned PE

System Location Discovery: System Language Discovery

Modifies Internet Explorer settings

Suspicious use of FindShellTrayWindow

Suspicious use of SetWindowsHookEx

Suspicious use of SendNotifyMessage

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2025-01-27 20:33

Signatures

UPX packed file

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

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2025-01-27 20:33

Reported

2025-01-27 20:36

Platform

win7-20241010-en

Max time kernel

148s

Max time network

152s

Command Line

"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_4371102d39fc36320b245fe979a469dd.exe"

Signatures

Adds Run key to start application

persistence
Description Indicator Process Target
Set value (str) \REGISTRY\USER\S-1-5-21-3692679935-4019334568-335155002-1000\Software\Microsoft\Windows\CurrentVersion\Run\2fdef74a48e84cf8e10830c6bea22535 = "C:\\Users\\Admin\\AppData\\Local\\Temp\\JAFFAC~1.EXE /r" C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_4371102d39fc36320b245fe979a469dd.exe N/A

UPX packed file

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

System Location Discovery: System Language Discovery

discovery
Description Indicator Process Target
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_4371102d39fc36320b245fe979a469dd.exe N/A

Modifies Internet Explorer settings

adware spyware
Description Indicator Process Target
Key created \REGISTRY\USER\S-1-5-21-3692679935-4019334568-335155002-1000\Software\Microsoft\Internet Explorer\Main C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_4371102d39fc36320b245fe979a469dd.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_4371102d39fc36320b245fe979a469dd.exe

"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_4371102d39fc36320b245fe979a469dd.exe"

Network

Country Destination Domain Proto
US 8.8.8.8:53 d.trymedia.com udp

Files

memory/2124-0-0x0000000000400000-0x0000000000458000-memory.dmp

memory/2124-3-0x0000000000240000-0x0000000000241000-memory.dmp

C:\Users\Admin\AppData\Local\Microsoft\Windows\Temporary Internet Files\Content.IE5\DUME8XYE\connecting_icon[1]

MD5 81f2114b7bcc913245df781df3eb9ae5
SHA1 46beb25a2a30e66c65ebddb72f836542e3655d21
SHA256 13237f6652c8a50f987ee5227ce16778117add802584a5e19ef892eac6e1d3e8
SHA512 446e34fc67e66d60a7e4a4ee65b47ca04198a8566c4d5cc665249fed8d8616cd6d674cb82621dfea4303cd7a1f90488027b352972219873bf90094d62e763b6c

memory/2124-25-0x0000000000400000-0x0000000000458000-memory.dmp

memory/2124-28-0x0000000000240000-0x0000000000241000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2025-01-27 20:33

Reported

2025-01-27 20:36

Platform

win10v2004-20241007-en

Max time kernel

147s

Max time network

148s

Command Line

"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_4371102d39fc36320b245fe979a469dd.exe"

Signatures

Adds Run key to start application

persistence
Description Indicator Process Target
Set value (str) \REGISTRY\USER\S-1-5-21-4089630652-1596403869-279772308-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\2fdef74a48e84cf8e10830c6bea22535 = "C:\\Users\\Admin\\AppData\\Local\\Temp\\JAFFAC~1.EXE /r" C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_4371102d39fc36320b245fe979a469dd.exe N/A

UPX packed file

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

System Location Discovery: System Language Discovery

discovery
Description Indicator Process Target
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_4371102d39fc36320b245fe979a469dd.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_4371102d39fc36320b245fe979a469dd.exe

"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_4371102d39fc36320b245fe979a469dd.exe"

Network

Country Destination Domain Proto
US 8.8.8.8:53 d.trymedia.com udp
US 8.8.8.8:53 8.8.8.8.in-addr.arpa udp
US 8.8.8.8:53 154.239.44.20.in-addr.arpa udp
US 8.8.8.8:53 136.32.126.40.in-addr.arpa udp
US 8.8.8.8:53 22.49.80.91.in-addr.arpa udp
US 8.8.8.8:53 5.114.82.104.in-addr.arpa udp
US 8.8.8.8:53 d.trymedia.com udp
US 8.8.8.8:53 d.trymedia.com udp
US 8.8.8.8:53 217.106.137.52.in-addr.arpa udp
US 8.8.8.8:53 d.trymedia.com udp
US 8.8.8.8:53 d.trymedia.com udp
US 8.8.8.8:53 d.trymedia.com udp
US 8.8.8.8:53 d.trymedia.com udp
US 8.8.8.8:53 200.163.202.172.in-addr.arpa udp
US 8.8.8.8:53 198.187.3.20.in-addr.arpa udp
US 8.8.8.8:53 181.129.81.91.in-addr.arpa udp
US 8.8.8.8:53 d.trymedia.com udp
US 8.8.8.8:53 d.trymedia.com udp
US 8.8.8.8:53 d.trymedia.com udp
US 8.8.8.8:53 d.trymedia.com udp
US 8.8.8.8:53 d.trymedia.com udp
US 8.8.8.8:53 d.trymedia.com udp
US 8.8.8.8:53 13.153.16.2.in-addr.arpa udp
US 8.8.8.8:53 d.trymedia.com udp
US 8.8.8.8:53 d.trymedia.com udp
US 8.8.8.8:53 d.trymedia.com udp
US 8.8.8.8:53 d.trymedia.com udp
US 8.8.8.8:53 d.trymedia.com udp
US 8.8.8.8:53 d.trymedia.com udp
US 8.8.8.8:53 85.49.80.91.in-addr.arpa udp
US 8.8.8.8:53 11.227.111.52.in-addr.arpa udp
US 8.8.8.8:53 d.trymedia.com udp
US 8.8.8.8:53 d.trymedia.com udp
US 8.8.8.8:53 d.trymedia.com udp
US 8.8.8.8:53 d.trymedia.com udp
US 8.8.8.8:53 d.trymedia.com udp
US 8.8.8.8:53 d.trymedia.com udp
US 8.8.8.8:53 d.trymedia.com udp
US 8.8.8.8:53 d.trymedia.com udp
US 8.8.8.8:53 d.trymedia.com udp
US 8.8.8.8:53 d.trymedia.com udp
US 8.8.8.8:53 d.trymedia.com udp

Files

memory/5100-0-0x0000000000400000-0x0000000000458000-memory.dmp

memory/5100-3-0x0000000000AA0000-0x0000000000AA1000-memory.dmp

memory/5100-17-0x0000000000400000-0x0000000000458000-memory.dmp

memory/5100-19-0x0000000000AA0000-0x0000000000AA1000-memory.dmp