Malware Analysis Report

2025-03-14 23:32

Sample ID 240407-w9ke7abe68
Target e598b6216b6447302a1221c72af765a1_JaffaCakes118
SHA256 52a92581c4af438f557a723fb1a47c736a46a8a0340110874b6173c438110185
Tags
evasion persistence trojan
score
10/10

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
10/10

SHA256

52a92581c4af438f557a723fb1a47c736a46a8a0340110874b6173c438110185

Threat Level: Known bad

The file e598b6216b6447302a1221c72af765a1_JaffaCakes118 was found to be: Known bad.

Malicious Activity Summary

evasion persistence trojan

UAC bypass

Windows security bypass

Disables taskbar notifications via registry modification

Windows security modification

Adds Run key to start application

Checks whether UAC is enabled

Unsigned PE

Program crash

Suspicious behavior: EnumeratesProcesses

Suspicious use of AdjustPrivilegeToken

Suspicious use of FindShellTrayWindow

System policy modification

Suspicious use of SetWindowsHookEx

Suspicious use of SendNotifyMessage

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-04-07 18:37

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-04-07 18:37

Reported

2024-04-07 18:39

Platform

win7-20240220-en

Max time kernel

148s

Max time network

131s

Command Line

"C:\Users\Admin\AppData\Local\Temp\e598b6216b6447302a1221c72af765a1_JaffaCakes118.exe"

Signatures

UAC bypass

evasion trojan
Description Indicator Process Target
Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0" C:\Users\Admin\AppData\Local\Temp\e598b6216b6447302a1221c72af765a1_JaffaCakes118.exe N/A

Windows security bypass

evasion trojan
Description Indicator Process Target
Set value (int) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\AntiVirusDisableNotify = "1" C:\Users\Admin\AppData\Local\Temp\e598b6216b6447302a1221c72af765a1_JaffaCakes118.exe N/A
Set value (int) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\AntiVirusOverride = "1" C:\Users\Admin\AppData\Local\Temp\e598b6216b6447302a1221c72af765a1_JaffaCakes118.exe N/A
Set value (int) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\FirewallDisableNotify = "1" C:\Users\Admin\AppData\Local\Temp\e598b6216b6447302a1221c72af765a1_JaffaCakes118.exe N/A
Set value (int) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\FirewallOverride = "1" C:\Users\Admin\AppData\Local\Temp\e598b6216b6447302a1221c72af765a1_JaffaCakes118.exe N/A
Set value (int) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\UpdatesDisableNotify = "1" C:\Users\Admin\AppData\Local\Temp\e598b6216b6447302a1221c72af765a1_JaffaCakes118.exe N/A

Disables taskbar notifications via registry modification

evasion

Windows security modification

evasion trojan
Description Indicator Process Target
Set value (int) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\AntiVirusOverride = "1" C:\Users\Admin\AppData\Local\Temp\e598b6216b6447302a1221c72af765a1_JaffaCakes118.exe N/A
Set value (int) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\FirewallDisableNotify = "1" C:\Users\Admin\AppData\Local\Temp\e598b6216b6447302a1221c72af765a1_JaffaCakes118.exe N/A
Set value (int) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\FirewallOverride = "1" C:\Users\Admin\AppData\Local\Temp\e598b6216b6447302a1221c72af765a1_JaffaCakes118.exe N/A
Set value (int) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\UpdatesDisableNotify = "1" C:\Users\Admin\AppData\Local\Temp\e598b6216b6447302a1221c72af765a1_JaffaCakes118.exe N/A
Key created \REGISTRY\MACHINE\Software\Wow6432Node\Microsoft\Security Center\svc C:\Users\Admin\AppData\Local\Temp\e598b6216b6447302a1221c72af765a1_JaffaCakes118.exe N/A
Key created \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\svc C:\Users\Admin\AppData\Local\Temp\e598b6216b6447302a1221c72af765a1_JaffaCakes118.exe N/A
Set value (int) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows Defender\DisableAntiSpyware = "1" C:\Users\Admin\AppData\Local\Temp\e598b6216b6447302a1221c72af765a1_JaffaCakes118.exe N/A
Set value (int) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\AntiVirusDisableNotify = "1" C:\Users\Admin\AppData\Local\Temp\e598b6216b6447302a1221c72af765a1_JaffaCakes118.exe N/A

Adds Run key to start application

persistence
Description Indicator Process Target
Set value (str) \REGISTRY\USER\S-1-5-21-2721934792-624042501-2768869379-1000\Software\Microsoft\Windows\CurrentVersion\RunOnce\A2DBCF170045EF4915743A5EF875EF60 = "C:\\ProgramData\\A2DBCF170045EF4915743A5EF875EF60\\A2DBCF170045EF4915743A5EF875EF60.exe" C:\Users\Admin\AppData\Local\Temp\e598b6216b6447302a1221c72af765a1_JaffaCakes118.exe N/A

Checks whether UAC is enabled

evasion trojan
Description Indicator Process Target
Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0" C:\Users\Admin\AppData\Local\Temp\e598b6216b6447302a1221c72af765a1_JaffaCakes118.exe N/A

Suspicious behavior: EnumeratesProcesses

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\e598b6216b6447302a1221c72af765a1_JaffaCakes118.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\e598b6216b6447302a1221c72af765a1_JaffaCakes118.exe N/A
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Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Local\Temp\e598b6216b6447302a1221c72af765a1_JaffaCakes118.exe N/A

System policy modification

evasion
Description Indicator Process Target
Key created \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System C:\Users\Admin\AppData\Local\Temp\e598b6216b6447302a1221c72af765a1_JaffaCakes118.exe N/A
Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0" C:\Users\Admin\AppData\Local\Temp\e598b6216b6447302a1221c72af765a1_JaffaCakes118.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\e598b6216b6447302a1221c72af765a1_JaffaCakes118.exe

"C:\Users\Admin\AppData\Local\Temp\e598b6216b6447302a1221c72af765a1_JaffaCakes118.exe"

Network

Country Destination Domain Proto
HK 112.121.178.189:80 tcp
HK 112.121.178.189:80 tcp

Files

memory/2784-0-0x0000000000250000-0x0000000000254000-memory.dmp

memory/2784-2-0x0000000000400000-0x00000000004CA000-memory.dmp

memory/2784-1-0x0000000000260000-0x0000000000263000-memory.dmp

memory/2784-3-0x0000000000400000-0x00000000004CA000-memory.dmp

memory/2784-5-0x0000000000400000-0x00000000004CA000-memory.dmp

memory/2784-8-0x0000000000400000-0x00000000004CA000-memory.dmp

memory/2784-11-0x0000000000400000-0x00000000004CA000-memory.dmp

memory/2784-16-0x0000000000400000-0x00000000004CA000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-04-07 18:37

Reported

2024-04-07 18:39

Platform

win10v2004-20240226-en

Max time kernel

102s

Max time network

108s

Command Line

"C:\Users\Admin\AppData\Local\Temp\e598b6216b6447302a1221c72af765a1_JaffaCakes118.exe"

Signatures

Processes

C:\Users\Admin\AppData\Local\Temp\e598b6216b6447302a1221c72af765a1_JaffaCakes118.exe

"C:\Users\Admin\AppData\Local\Temp\e598b6216b6447302a1221c72af765a1_JaffaCakes118.exe"

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 448 -p 4524 -ip 4524

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 4524 -s 524

Network

Country Destination Domain Proto
US 8.8.8.8:53 217.106.137.52.in-addr.arpa udp
US 8.8.8.8:53 249.197.17.2.in-addr.arpa udp
US 8.8.8.8:53 72.32.126.40.in-addr.arpa udp
US 8.8.8.8:53 159.113.53.23.in-addr.arpa udp
US 8.8.8.8:53 103.169.127.40.in-addr.arpa udp
US 8.8.8.8:53 18.31.95.13.in-addr.arpa udp
US 8.8.8.8:53 81.171.91.138.in-addr.arpa udp
US 8.8.8.8:53 17.143.109.104.in-addr.arpa udp
US 8.8.8.8:53 240.197.17.2.in-addr.arpa udp
IE 52.111.236.23:443 tcp
US 8.8.8.8:53 240.221.184.93.in-addr.arpa udp
US 8.8.8.8:53 13.227.111.52.in-addr.arpa udp

Files

memory/4524-0-0x00000000020E0000-0x00000000020E4000-memory.dmp

memory/4524-1-0x0000000000400000-0x00000000004CA000-memory.dmp