Malware Analysis Report

2024-10-23 20:47

Sample ID 240528-n6weaabd3t
Target 7cdeacbb18a2c81582a05eef50d4d3fd_JaffaCakes118
SHA256 aeb145bf215452b59f13c7f5e26951238a374974c97cae074e009ab8ecf2c6ac
Tags
vitima njrat 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

aeb145bf215452b59f13c7f5e26951238a374974c97cae074e009ab8ecf2c6ac

Threat Level: Known bad

The file 7cdeacbb18a2c81582a05eef50d4d3fd_JaffaCakes118 was found to be: Known bad.

Malicious Activity Summary

vitima njrat evasion persistence trojan

njRAT/Bladabindi

Njrat family

Modifies Windows Firewall

Drops startup file

Adds Run key to start application

Unsigned PE

Suspicious use of AdjustPrivilegeToken

Suspicious use of WriteProcessMemory

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-05-28 12:01

Signatures

Njrat family

njrat

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-05-28 12:01

Reported

2024-05-28 12:35

Platform

win7-20240508-en

Max time kernel

150s

Max time network

153s

Command Line

"C:\Users\Admin\AppData\Local\Temp\7cdeacbb18a2c81582a05eef50d4d3fd_JaffaCakes118.exe"

Signatures

njRAT/Bladabindi

trojan njrat

Modifies Windows Firewall

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

Drops startup file

Description Indicator Process Target
File created C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\c397e8d4919f87cbbc87852792f41d36.exe C:\Users\Admin\AppData\Local\Temp\7cdeacbb18a2c81582a05eef50d4d3fd_JaffaCakes118.exe N/A
File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\c397e8d4919f87cbbc87852792f41d36.exe C:\Users\Admin\AppData\Local\Temp\7cdeacbb18a2c81582a05eef50d4d3fd_JaffaCakes118.exe N/A

Adds Run key to start application

persistence
Description Indicator Process Target
Set value (str) \REGISTRY\USER\S-1-5-21-3691908287-3775019229-3534252667-1000\Software\Microsoft\Windows\CurrentVersion\Run\c397e8d4919f87cbbc87852792f41d36 = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\7cdeacbb18a2c81582a05eef50d4d3fd_JaffaCakes118.exe\" .." C:\Users\Admin\AppData\Local\Temp\7cdeacbb18a2c81582a05eef50d4d3fd_JaffaCakes118.exe N/A
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\c397e8d4919f87cbbc87852792f41d36 = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\7cdeacbb18a2c81582a05eef50d4d3fd_JaffaCakes118.exe\" .." C:\Users\Admin\AppData\Local\Temp\7cdeacbb18a2c81582a05eef50d4d3fd_JaffaCakes118.exe N/A

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Local\Temp\7cdeacbb18a2c81582a05eef50d4d3fd_JaffaCakes118.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\7cdeacbb18a2c81582a05eef50d4d3fd_JaffaCakes118.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\7cdeacbb18a2c81582a05eef50d4d3fd_JaffaCakes118.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\7cdeacbb18a2c81582a05eef50d4d3fd_JaffaCakes118.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\7cdeacbb18a2c81582a05eef50d4d3fd_JaffaCakes118.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\7cdeacbb18a2c81582a05eef50d4d3fd_JaffaCakes118.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\7cdeacbb18a2c81582a05eef50d4d3fd_JaffaCakes118.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\7cdeacbb18a2c81582a05eef50d4d3fd_JaffaCakes118.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\7cdeacbb18a2c81582a05eef50d4d3fd_JaffaCakes118.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\7cdeacbb18a2c81582a05eef50d4d3fd_JaffaCakes118.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\7cdeacbb18a2c81582a05eef50d4d3fd_JaffaCakes118.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\7cdeacbb18a2c81582a05eef50d4d3fd_JaffaCakes118.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\7cdeacbb18a2c81582a05eef50d4d3fd_JaffaCakes118.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\7cdeacbb18a2c81582a05eef50d4d3fd_JaffaCakes118.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\7cdeacbb18a2c81582a05eef50d4d3fd_JaffaCakes118.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\7cdeacbb18a2c81582a05eef50d4d3fd_JaffaCakes118.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\7cdeacbb18a2c81582a05eef50d4d3fd_JaffaCakes118.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\7cdeacbb18a2c81582a05eef50d4d3fd_JaffaCakes118.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\7cdeacbb18a2c81582a05eef50d4d3fd_JaffaCakes118.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\7cdeacbb18a2c81582a05eef50d4d3fd_JaffaCakes118.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\7cdeacbb18a2c81582a05eef50d4d3fd_JaffaCakes118.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\7cdeacbb18a2c81582a05eef50d4d3fd_JaffaCakes118.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\7cdeacbb18a2c81582a05eef50d4d3fd_JaffaCakes118.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\7cdeacbb18a2c81582a05eef50d4d3fd_JaffaCakes118.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\7cdeacbb18a2c81582a05eef50d4d3fd_JaffaCakes118.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\7cdeacbb18a2c81582a05eef50d4d3fd_JaffaCakes118.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\7cdeacbb18a2c81582a05eef50d4d3fd_JaffaCakes118.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\7cdeacbb18a2c81582a05eef50d4d3fd_JaffaCakes118.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\7cdeacbb18a2c81582a05eef50d4d3fd_JaffaCakes118.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\7cdeacbb18a2c81582a05eef50d4d3fd_JaffaCakes118.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\7cdeacbb18a2c81582a05eef50d4d3fd_JaffaCakes118.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\7cdeacbb18a2c81582a05eef50d4d3fd_JaffaCakes118.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\7cdeacbb18a2c81582a05eef50d4d3fd_JaffaCakes118.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\7cdeacbb18a2c81582a05eef50d4d3fd_JaffaCakes118.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\7cdeacbb18a2c81582a05eef50d4d3fd_JaffaCakes118.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\7cdeacbb18a2c81582a05eef50d4d3fd_JaffaCakes118.exe

"C:\Users\Admin\AppData\Local\Temp\7cdeacbb18a2c81582a05eef50d4d3fd_JaffaCakes118.exe"

C:\Windows\SysWOW64\netsh.exe

netsh firewall add allowedprogram "C:\Users\Admin\AppData\Local\Temp\7cdeacbb18a2c81582a05eef50d4d3fd_JaffaCakes118.exe" "7cdeacbb18a2c81582a05eef50d4d3fd_JaffaCakes118.exe" ENABLE

Network

Country Destination Domain Proto
US 8.8.8.8:53 m4k0y.duckdns.org udp
BR 189.26.148.23:1009 m4k0y.duckdns.org tcp
BR 189.26.148.23:1009 m4k0y.duckdns.org tcp
BR 189.26.148.23:1009 m4k0y.duckdns.org tcp
US 8.8.8.8:53 m4k0y.duckdns.org udp
BR 189.26.148.23:1009 m4k0y.duckdns.org tcp
BR 189.26.148.23:1009 m4k0y.duckdns.org tcp
BR 189.26.148.23:1009 m4k0y.duckdns.org tcp
US 8.8.8.8:53 m4k0y.duckdns.org udp

Files

memory/108-0-0x0000000074DE1000-0x0000000074DE2000-memory.dmp

memory/108-1-0x0000000074DE0000-0x000000007538B000-memory.dmp

memory/108-2-0x0000000074DE0000-0x000000007538B000-memory.dmp

memory/108-4-0x0000000074DE0000-0x000000007538B000-memory.dmp

memory/108-5-0x0000000074DE0000-0x000000007538B000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-05-28 12:01

Reported

2024-05-28 12:35

Platform

win10v2004-20240508-en

Max time kernel

149s

Max time network

151s

Command Line

"C:\Users\Admin\AppData\Local\Temp\7cdeacbb18a2c81582a05eef50d4d3fd_JaffaCakes118.exe"

Signatures

njRAT/Bladabindi

trojan njrat

Modifies Windows Firewall

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

Drops startup file

Description Indicator Process Target
File created C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\c397e8d4919f87cbbc87852792f41d36.exe C:\Users\Admin\AppData\Local\Temp\7cdeacbb18a2c81582a05eef50d4d3fd_JaffaCakes118.exe N/A
File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\c397e8d4919f87cbbc87852792f41d36.exe C:\Users\Admin\AppData\Local\Temp\7cdeacbb18a2c81582a05eef50d4d3fd_JaffaCakes118.exe N/A

Adds Run key to start application

persistence
Description Indicator Process Target
Set value (str) \REGISTRY\USER\S-1-5-21-1337824034-2731376981-3755436523-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\c397e8d4919f87cbbc87852792f41d36 = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\7cdeacbb18a2c81582a05eef50d4d3fd_JaffaCakes118.exe\" .." C:\Users\Admin\AppData\Local\Temp\7cdeacbb18a2c81582a05eef50d4d3fd_JaffaCakes118.exe N/A
Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\c397e8d4919f87cbbc87852792f41d36 = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\7cdeacbb18a2c81582a05eef50d4d3fd_JaffaCakes118.exe\" .." C:\Users\Admin\AppData\Local\Temp\7cdeacbb18a2c81582a05eef50d4d3fd_JaffaCakes118.exe N/A

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Local\Temp\7cdeacbb18a2c81582a05eef50d4d3fd_JaffaCakes118.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\7cdeacbb18a2c81582a05eef50d4d3fd_JaffaCakes118.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\7cdeacbb18a2c81582a05eef50d4d3fd_JaffaCakes118.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\7cdeacbb18a2c81582a05eef50d4d3fd_JaffaCakes118.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\7cdeacbb18a2c81582a05eef50d4d3fd_JaffaCakes118.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\7cdeacbb18a2c81582a05eef50d4d3fd_JaffaCakes118.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\7cdeacbb18a2c81582a05eef50d4d3fd_JaffaCakes118.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\7cdeacbb18a2c81582a05eef50d4d3fd_JaffaCakes118.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\7cdeacbb18a2c81582a05eef50d4d3fd_JaffaCakes118.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\7cdeacbb18a2c81582a05eef50d4d3fd_JaffaCakes118.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\7cdeacbb18a2c81582a05eef50d4d3fd_JaffaCakes118.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\7cdeacbb18a2c81582a05eef50d4d3fd_JaffaCakes118.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\7cdeacbb18a2c81582a05eef50d4d3fd_JaffaCakes118.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\7cdeacbb18a2c81582a05eef50d4d3fd_JaffaCakes118.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\7cdeacbb18a2c81582a05eef50d4d3fd_JaffaCakes118.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\7cdeacbb18a2c81582a05eef50d4d3fd_JaffaCakes118.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\7cdeacbb18a2c81582a05eef50d4d3fd_JaffaCakes118.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\7cdeacbb18a2c81582a05eef50d4d3fd_JaffaCakes118.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\7cdeacbb18a2c81582a05eef50d4d3fd_JaffaCakes118.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\7cdeacbb18a2c81582a05eef50d4d3fd_JaffaCakes118.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\7cdeacbb18a2c81582a05eef50d4d3fd_JaffaCakes118.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\7cdeacbb18a2c81582a05eef50d4d3fd_JaffaCakes118.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\7cdeacbb18a2c81582a05eef50d4d3fd_JaffaCakes118.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\7cdeacbb18a2c81582a05eef50d4d3fd_JaffaCakes118.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\7cdeacbb18a2c81582a05eef50d4d3fd_JaffaCakes118.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\7cdeacbb18a2c81582a05eef50d4d3fd_JaffaCakes118.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\7cdeacbb18a2c81582a05eef50d4d3fd_JaffaCakes118.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\7cdeacbb18a2c81582a05eef50d4d3fd_JaffaCakes118.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\7cdeacbb18a2c81582a05eef50d4d3fd_JaffaCakes118.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\7cdeacbb18a2c81582a05eef50d4d3fd_JaffaCakes118.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\7cdeacbb18a2c81582a05eef50d4d3fd_JaffaCakes118.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\7cdeacbb18a2c81582a05eef50d4d3fd_JaffaCakes118.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\7cdeacbb18a2c81582a05eef50d4d3fd_JaffaCakes118.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\7cdeacbb18a2c81582a05eef50d4d3fd_JaffaCakes118.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\7cdeacbb18a2c81582a05eef50d4d3fd_JaffaCakes118.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\7cdeacbb18a2c81582a05eef50d4d3fd_JaffaCakes118.exe

"C:\Users\Admin\AppData\Local\Temp\7cdeacbb18a2c81582a05eef50d4d3fd_JaffaCakes118.exe"

C:\Windows\SysWOW64\netsh.exe

netsh firewall add allowedprogram "C:\Users\Admin\AppData\Local\Temp\7cdeacbb18a2c81582a05eef50d4d3fd_JaffaCakes118.exe" "7cdeacbb18a2c81582a05eef50d4d3fd_JaffaCakes118.exe" ENABLE

Network

Country Destination Domain Proto
US 8.8.8.8:53 149.220.183.52.in-addr.arpa udp
US 8.8.8.8:53 18.24.18.2.in-addr.arpa udp
NL 23.62.61.121:443 www.bing.com tcp
US 8.8.8.8:53 57.169.31.20.in-addr.arpa udp
US 8.8.8.8:53 121.61.62.23.in-addr.arpa udp
US 8.8.8.8:53 m4k0y.duckdns.org udp
US 8.8.8.8:53 228.249.119.40.in-addr.arpa udp
BR 189.26.148.23:1009 m4k0y.duckdns.org tcp
US 8.8.8.8:53 26.165.165.52.in-addr.arpa udp
NL 52.142.223.178:80 tcp
US 8.8.8.8:53 15.164.165.52.in-addr.arpa udp
US 8.8.8.8:53 140.71.91.104.in-addr.arpa udp
BR 189.26.148.23:1009 m4k0y.duckdns.org tcp
BR 189.26.148.23:1009 m4k0y.duckdns.org tcp
US 8.8.8.8:53 25.24.18.2.in-addr.arpa udp
US 8.8.8.8:53 43.58.199.20.in-addr.arpa udp
US 8.8.8.8:53 m4k0y.duckdns.org udp
BR 189.26.148.23:1009 m4k0y.duckdns.org tcp
US 8.8.8.8:53 21.236.111.52.in-addr.arpa udp
US 8.8.8.8:53 172.210.232.199.in-addr.arpa udp
US 8.8.8.8:53 tse1.mm.bing.net udp
US 204.79.197.200:443 tse1.mm.bing.net tcp
US 204.79.197.200:443 tse1.mm.bing.net tcp
US 8.8.8.8:53 200.197.79.204.in-addr.arpa udp
BR 189.26.148.23:1009 m4k0y.duckdns.org tcp
BR 189.26.148.23:1009 m4k0y.duckdns.org tcp
US 8.8.8.8:53 170.117.168.52.in-addr.arpa udp

Files

memory/4528-0-0x0000000074A32000-0x0000000074A33000-memory.dmp

memory/4528-1-0x0000000074A30000-0x0000000074FE1000-memory.dmp

memory/4528-2-0x0000000074A30000-0x0000000074FE1000-memory.dmp

memory/4528-4-0x0000000074A32000-0x0000000074A33000-memory.dmp

memory/4528-5-0x0000000074A30000-0x0000000074FE1000-memory.dmp