Malware Analysis Report

2024-10-23 20:47

Sample ID 240529-f86zssch69
Target 7fa672943d27b23830fad41370e368ab_JaffaCakes118
SHA256 3b4ecbb8e3c09e42166df0d2c159671ae46d7ea739556cf6da53ccb3fbf95dbe
Tags
extrimhack 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

3b4ecbb8e3c09e42166df0d2c159671ae46d7ea739556cf6da53ccb3fbf95dbe

Threat Level: Known bad

The file 7fa672943d27b23830fad41370e368ab_JaffaCakes118 was found to be: Known bad.

Malicious Activity Summary

extrimhack njrat evasion persistence trojan

Njrat family

njRAT/Bladabindi

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

2024-05-29 05:33

Signatures

Njrat family

njrat

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-05-29 05:33

Reported

2024-05-29 05:36

Platform

win7-20240221-en

Max time kernel

149s

Max time network

148s

Command Line

"C:\Users\Admin\AppData\Local\Temp\7fa672943d27b23830fad41370e368ab_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 opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\95f5ec3bd7a8e3e281a57a314113d408.exe C:\Users\Admin\AppData\Local\Temp\7fa672943d27b23830fad41370e368ab_JaffaCakes118.exe N/A
File created C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\95f5ec3bd7a8e3e281a57a314113d408.exe C:\Users\Admin\AppData\Local\Temp\7fa672943d27b23830fad41370e368ab_JaffaCakes118.exe N/A

Adds Run key to start application

persistence
Description Indicator Process Target
Set value (str) \REGISTRY\USER\S-1-5-21-1298544033-3225604241-2703760938-1000\Software\Microsoft\Windows\CurrentVersion\Run\95f5ec3bd7a8e3e281a57a314113d408 = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\7fa672943d27b23830fad41370e368ab_JaffaCakes118.exe\" .." C:\Users\Admin\AppData\Local\Temp\7fa672943d27b23830fad41370e368ab_JaffaCakes118.exe N/A
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\95f5ec3bd7a8e3e281a57a314113d408 = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\7fa672943d27b23830fad41370e368ab_JaffaCakes118.exe\" .." C:\Users\Admin\AppData\Local\Temp\7fa672943d27b23830fad41370e368ab_JaffaCakes118.exe N/A

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Local\Temp\7fa672943d27b23830fad41370e368ab_JaffaCakes118.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\7fa672943d27b23830fad41370e368ab_JaffaCakes118.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\7fa672943d27b23830fad41370e368ab_JaffaCakes118.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\7fa672943d27b23830fad41370e368ab_JaffaCakes118.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\7fa672943d27b23830fad41370e368ab_JaffaCakes118.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\7fa672943d27b23830fad41370e368ab_JaffaCakes118.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\7fa672943d27b23830fad41370e368ab_JaffaCakes118.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\7fa672943d27b23830fad41370e368ab_JaffaCakes118.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\7fa672943d27b23830fad41370e368ab_JaffaCakes118.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\7fa672943d27b23830fad41370e368ab_JaffaCakes118.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\7fa672943d27b23830fad41370e368ab_JaffaCakes118.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\7fa672943d27b23830fad41370e368ab_JaffaCakes118.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\7fa672943d27b23830fad41370e368ab_JaffaCakes118.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\7fa672943d27b23830fad41370e368ab_JaffaCakes118.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\7fa672943d27b23830fad41370e368ab_JaffaCakes118.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\7fa672943d27b23830fad41370e368ab_JaffaCakes118.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\7fa672943d27b23830fad41370e368ab_JaffaCakes118.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\7fa672943d27b23830fad41370e368ab_JaffaCakes118.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\7fa672943d27b23830fad41370e368ab_JaffaCakes118.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\7fa672943d27b23830fad41370e368ab_JaffaCakes118.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\7fa672943d27b23830fad41370e368ab_JaffaCakes118.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\7fa672943d27b23830fad41370e368ab_JaffaCakes118.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\7fa672943d27b23830fad41370e368ab_JaffaCakes118.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\7fa672943d27b23830fad41370e368ab_JaffaCakes118.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\7fa672943d27b23830fad41370e368ab_JaffaCakes118.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\7fa672943d27b23830fad41370e368ab_JaffaCakes118.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\7fa672943d27b23830fad41370e368ab_JaffaCakes118.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\7fa672943d27b23830fad41370e368ab_JaffaCakes118.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\7fa672943d27b23830fad41370e368ab_JaffaCakes118.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\7fa672943d27b23830fad41370e368ab_JaffaCakes118.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\7fa672943d27b23830fad41370e368ab_JaffaCakes118.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\7fa672943d27b23830fad41370e368ab_JaffaCakes118.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\7fa672943d27b23830fad41370e368ab_JaffaCakes118.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\7fa672943d27b23830fad41370e368ab_JaffaCakes118.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\7fa672943d27b23830fad41370e368ab_JaffaCakes118.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\7fa672943d27b23830fad41370e368ab_JaffaCakes118.exe

"C:\Users\Admin\AppData\Local\Temp\7fa672943d27b23830fad41370e368ab_JaffaCakes118.exe"

C:\Windows\SysWOW64\netsh.exe

netsh firewall add allowedprogram "C:\Users\Admin\AppData\Local\Temp\7fa672943d27b23830fad41370e368ab_JaffaCakes118.exe" "7fa672943d27b23830fad41370e368ab_JaffaCakes118.exe" ENABLE

Network

Country Destination Domain Proto
N/A 192.168.0.102:6522 tcp
N/A 192.168.0.102:6522 tcp
N/A 192.168.0.102:6522 tcp
N/A 192.168.0.102:6522 tcp
N/A 192.168.0.102:6522 tcp
N/A 192.168.0.102:6522 tcp
N/A 192.168.0.102:6522 tcp

Files

memory/1728-0-0x0000000074E11000-0x0000000074E12000-memory.dmp

memory/1728-1-0x0000000074E10000-0x00000000753BB000-memory.dmp

memory/1728-2-0x0000000074E10000-0x00000000753BB000-memory.dmp

memory/1728-6-0x0000000074E10000-0x00000000753BB000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-05-29 05:33

Reported

2024-05-29 05:36

Platform

win10v2004-20240508-en

Max time kernel

149s

Max time network

151s

Command Line

"C:\Users\Admin\AppData\Local\Temp\7fa672943d27b23830fad41370e368ab_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\95f5ec3bd7a8e3e281a57a314113d408.exe C:\Users\Admin\AppData\Local\Temp\7fa672943d27b23830fad41370e368ab_JaffaCakes118.exe N/A
File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\95f5ec3bd7a8e3e281a57a314113d408.exe C:\Users\Admin\AppData\Local\Temp\7fa672943d27b23830fad41370e368ab_JaffaCakes118.exe N/A

Adds Run key to start application

persistence
Description Indicator Process Target
Set value (str) \REGISTRY\USER\S-1-5-21-4124900551-4068476067-3491212533-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\95f5ec3bd7a8e3e281a57a314113d408 = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\7fa672943d27b23830fad41370e368ab_JaffaCakes118.exe\" .." C:\Users\Admin\AppData\Local\Temp\7fa672943d27b23830fad41370e368ab_JaffaCakes118.exe N/A
Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\95f5ec3bd7a8e3e281a57a314113d408 = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\7fa672943d27b23830fad41370e368ab_JaffaCakes118.exe\" .." C:\Users\Admin\AppData\Local\Temp\7fa672943d27b23830fad41370e368ab_JaffaCakes118.exe N/A

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Local\Temp\7fa672943d27b23830fad41370e368ab_JaffaCakes118.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\7fa672943d27b23830fad41370e368ab_JaffaCakes118.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\7fa672943d27b23830fad41370e368ab_JaffaCakes118.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\7fa672943d27b23830fad41370e368ab_JaffaCakes118.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\7fa672943d27b23830fad41370e368ab_JaffaCakes118.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\7fa672943d27b23830fad41370e368ab_JaffaCakes118.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\7fa672943d27b23830fad41370e368ab_JaffaCakes118.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\7fa672943d27b23830fad41370e368ab_JaffaCakes118.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\7fa672943d27b23830fad41370e368ab_JaffaCakes118.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\7fa672943d27b23830fad41370e368ab_JaffaCakes118.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\7fa672943d27b23830fad41370e368ab_JaffaCakes118.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\7fa672943d27b23830fad41370e368ab_JaffaCakes118.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\7fa672943d27b23830fad41370e368ab_JaffaCakes118.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\7fa672943d27b23830fad41370e368ab_JaffaCakes118.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\7fa672943d27b23830fad41370e368ab_JaffaCakes118.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\7fa672943d27b23830fad41370e368ab_JaffaCakes118.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\7fa672943d27b23830fad41370e368ab_JaffaCakes118.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\7fa672943d27b23830fad41370e368ab_JaffaCakes118.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\7fa672943d27b23830fad41370e368ab_JaffaCakes118.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\7fa672943d27b23830fad41370e368ab_JaffaCakes118.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\7fa672943d27b23830fad41370e368ab_JaffaCakes118.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\7fa672943d27b23830fad41370e368ab_JaffaCakes118.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\7fa672943d27b23830fad41370e368ab_JaffaCakes118.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\7fa672943d27b23830fad41370e368ab_JaffaCakes118.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\7fa672943d27b23830fad41370e368ab_JaffaCakes118.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\7fa672943d27b23830fad41370e368ab_JaffaCakes118.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\7fa672943d27b23830fad41370e368ab_JaffaCakes118.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\7fa672943d27b23830fad41370e368ab_JaffaCakes118.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\7fa672943d27b23830fad41370e368ab_JaffaCakes118.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\7fa672943d27b23830fad41370e368ab_JaffaCakes118.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\7fa672943d27b23830fad41370e368ab_JaffaCakes118.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\7fa672943d27b23830fad41370e368ab_JaffaCakes118.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\7fa672943d27b23830fad41370e368ab_JaffaCakes118.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\7fa672943d27b23830fad41370e368ab_JaffaCakes118.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\7fa672943d27b23830fad41370e368ab_JaffaCakes118.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\7fa672943d27b23830fad41370e368ab_JaffaCakes118.exe

"C:\Users\Admin\AppData\Local\Temp\7fa672943d27b23830fad41370e368ab_JaffaCakes118.exe"

C:\Windows\SysWOW64\netsh.exe

netsh firewall add allowedprogram "C:\Users\Admin\AppData\Local\Temp\7fa672943d27b23830fad41370e368ab_JaffaCakes118.exe" "7fa672943d27b23830fad41370e368ab_JaffaCakes118.exe" ENABLE

Network

Country Destination Domain Proto
US 8.8.8.8:53 25.24.18.2.in-addr.arpa udp
US 8.8.8.8:53 183.142.211.20.in-addr.arpa udp
US 8.8.8.8:53 g.bing.com udp
US 204.79.197.237:443 g.bing.com tcp
US 8.8.8.8:53 237.197.79.204.in-addr.arpa udp
US 8.8.8.8:53 68.159.190.20.in-addr.arpa udp
NL 23.62.61.97:443 www.bing.com tcp
US 8.8.8.8:53 55.36.223.20.in-addr.arpa udp
US 8.8.8.8:53 97.61.62.23.in-addr.arpa udp
N/A 192.168.0.102:6522 tcp
US 8.8.8.8:53 133.211.185.52.in-addr.arpa udp
US 8.8.8.8:53 103.169.127.40.in-addr.arpa udp
US 8.8.8.8:53 171.39.242.20.in-addr.arpa udp
N/A 192.168.0.102:6522 tcp
N/A 192.168.0.102:6522 tcp
US 8.8.8.8:53 205.47.74.20.in-addr.arpa udp
N/A 192.168.0.102:6522 tcp
US 52.111.229.43:443 tcp
US 8.8.8.8:53 172.210.232.199.in-addr.arpa udp
US 8.8.8.8:53 21.236.111.52.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 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 26.35.223.20.in-addr.arpa udp
N/A 192.168.0.102:6522 tcp
N/A 192.168.0.102:6522 tcp
N/A 192.168.0.102:6522 tcp
US 8.8.8.8:53 6.173.189.20.in-addr.arpa udp

Files

memory/1624-0-0x0000000074732000-0x0000000074733000-memory.dmp

memory/1624-1-0x0000000074730000-0x0000000074CE1000-memory.dmp

memory/1624-2-0x0000000074730000-0x0000000074CE1000-memory.dmp

memory/1624-6-0x0000000074732000-0x0000000074733000-memory.dmp

memory/1624-7-0x0000000074730000-0x0000000074CE1000-memory.dmp