Malware Analysis Report

2025-03-15 06:22

Sample ID 240929-w58bfsvflm
Target ff1fe20d8f6b65a29271808f5a372e69_JaffaCakes118
SHA256 ce73db2cfd2db2efd22f1fe44ce3bf428647751bd89dbb467c85578f00788130
Tags
hacked njrat discovery evasion persistence privilege_escalation 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

ce73db2cfd2db2efd22f1fe44ce3bf428647751bd89dbb467c85578f00788130

Threat Level: Known bad

The file ff1fe20d8f6b65a29271808f5a372e69_JaffaCakes118 was found to be: Known bad.

Malicious Activity Summary

hacked njrat discovery evasion persistence privilege_escalation trojan

Njrat family

njRAT/Bladabindi

Modifies Windows Firewall

Checks computer location settings

Loads dropped DLL

Executes dropped EXE

Adds Run key to start application

Unsigned PE

Event Triggered Execution: Netsh Helper DLL

Enumerates physical storage devices

System Location Discovery: System Language Discovery

Suspicious use of WriteProcessMemory

Suspicious use of AdjustPrivilegeToken

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-09-29 18:31

Signatures

Njrat family

njrat

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-09-29 18:31

Reported

2024-09-29 18:33

Platform

win7-20240708-en

Max time kernel

149s

Max time network

150s

Command Line

"C:\Users\Admin\AppData\Local\Temp\ff1fe20d8f6b65a29271808f5a372e69_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

Executes dropped EXE

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

Loads dropped DLL

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\ff1fe20d8f6b65a29271808f5a372e69_JaffaCakes118.exe N/A

Adds Run key to start application

persistence
Description Indicator Process Target
Set value (str) \REGISTRY\USER\S-1-5-21-1506706701-1246725540-2219210854-1000\Software\Microsoft\Windows\CurrentVersion\Run\8d5adf3813d692c472d93aa27a552926 = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\server.exe\" .." C:\Users\Admin\AppData\Local\Temp\server.exe N/A
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\8d5adf3813d692c472d93aa27a552926 = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\server.exe\" .." C:\Users\Admin\AppData\Local\Temp\server.exe N/A

Enumerates physical storage devices

Event Triggered Execution: Netsh Helper DLL

persistence privilege_escalation
Description Indicator Process Target
Key opened \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\NetSh C:\Windows\SysWOW64\netsh.exe N/A
Key queried \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\NetSh C:\Windows\SysWOW64\netsh.exe N/A
Key value enumerated \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\NetSh C:\Windows\SysWOW64\netsh.exe 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\ff1fe20d8f6b65a29271808f5a372e69_JaffaCakes118.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Users\Admin\AppData\Local\Temp\server.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Windows\SysWOW64\netsh.exe N/A

Suspicious use of AdjustPrivilegeToken

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

Processes

C:\Users\Admin\AppData\Local\Temp\ff1fe20d8f6b65a29271808f5a372e69_JaffaCakes118.exe

"C:\Users\Admin\AppData\Local\Temp\ff1fe20d8f6b65a29271808f5a372e69_JaffaCakes118.exe"

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

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

C:\Windows\SysWOW64\netsh.exe

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

Network

Country Destination Domain Proto
US 8.8.8.8:53 zdzdzdzd.kro.kr udp

Files

memory/1080-0-0x0000000074871000-0x0000000074872000-memory.dmp

memory/1080-1-0x0000000074870000-0x0000000074E1B000-memory.dmp

memory/1080-2-0x0000000074870000-0x0000000074E1B000-memory.dmp

\Users\Admin\AppData\Local\Temp\server.exe

MD5 ff1fe20d8f6b65a29271808f5a372e69
SHA1 0b59bec87fbc249ff555bd4425b782d6a7a8514d
SHA256 ce73db2cfd2db2efd22f1fe44ce3bf428647751bd89dbb467c85578f00788130
SHA512 a485e9d305ca0e0e3a1b4b042b30cd2f051298a1b501d9e3f38c6adc28991180213fc2241f43b548edfe2e6c294f0360e2d90c817fef4fe64c8698e7429b36b8

memory/2540-10-0x0000000074870000-0x0000000074E1B000-memory.dmp

memory/1080-12-0x0000000074870000-0x0000000074E1B000-memory.dmp

memory/2540-11-0x0000000074870000-0x0000000074E1B000-memory.dmp

memory/2540-13-0x0000000074870000-0x0000000074E1B000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-09-29 18:31

Reported

2024-09-29 18:33

Platform

win10v2004-20240802-en

Max time kernel

149s

Max time network

148s

Command Line

"C:\Users\Admin\AppData\Local\Temp\ff1fe20d8f6b65a29271808f5a372e69_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

Checks computer location settings

Description Indicator Process Target
Key value queried \REGISTRY\USER\S-1-5-21-656926755-4116854191-210765258-1000\Control Panel\International\Geo\Nation C:\Users\Admin\AppData\Local\Temp\ff1fe20d8f6b65a29271808f5a372e69_JaffaCakes118.exe N/A

Executes dropped EXE

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

Adds Run key to start application

persistence
Description Indicator Process Target
Set value (str) \REGISTRY\USER\S-1-5-21-656926755-4116854191-210765258-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\8d5adf3813d692c472d93aa27a552926 = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\server.exe\" .." C:\Users\Admin\AppData\Local\Temp\server.exe N/A
Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\8d5adf3813d692c472d93aa27a552926 = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\server.exe\" .." C:\Users\Admin\AppData\Local\Temp\server.exe N/A

Enumerates physical storage devices

Event Triggered Execution: Netsh Helper DLL

persistence privilege_escalation
Description Indicator Process Target
Key value enumerated \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\NetSh C:\Windows\SysWOW64\netsh.exe N/A
Key opened \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\NetSh C:\Windows\SysWOW64\netsh.exe N/A
Key queried \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\NetSh C:\Windows\SysWOW64\netsh.exe 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\ff1fe20d8f6b65a29271808f5a372e69_JaffaCakes118.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Users\Admin\AppData\Local\Temp\server.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Windows\SysWOW64\netsh.exe N/A

Suspicious use of AdjustPrivilegeToken

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

Processes

C:\Users\Admin\AppData\Local\Temp\ff1fe20d8f6b65a29271808f5a372e69_JaffaCakes118.exe

"C:\Users\Admin\AppData\Local\Temp\ff1fe20d8f6b65a29271808f5a372e69_JaffaCakes118.exe"

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

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

C:\Windows\SysWOW64\netsh.exe

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

Network

Country Destination Domain Proto
US 8.8.8.8:53 209.205.72.20.in-addr.arpa udp
US 8.8.8.8:53 83.210.23.2.in-addr.arpa udp
US 8.8.8.8:53 104.219.191.52.in-addr.arpa udp
US 8.8.8.8:53 zdzdzdzd.kro.kr udp
US 8.8.8.8:53 13.86.106.20.in-addr.arpa udp
US 8.8.8.8:53 zdzdzdzd.kro.kr udp
US 8.8.8.8:53 zdzdzdzd.kro.kr udp
US 8.8.8.8:53 zdzdzdzd.kro.kr udp
US 8.8.8.8:53 86.23.85.13.in-addr.arpa udp
US 8.8.8.8:53 206.23.85.13.in-addr.arpa udp
US 8.8.8.8:53 105.210.23.2.in-addr.arpa udp
US 8.8.8.8:53 zdzdzdzd.kro.kr udp
US 8.8.8.8:53 zdzdzdzd.kro.kr udp
US 8.8.8.8:53 zdzdzdzd.kro.kr udp
US 8.8.8.8:53 zdzdzdzd.kro.kr udp
US 8.8.8.8:53 zdzdzdzd.kro.kr udp
US 8.8.8.8:53 zdzdzdzd.kro.kr udp
US 8.8.8.8:53 zdzdzdzd.kro.kr udp
US 8.8.8.8:53 zdzdzdzd.kro.kr udp
US 8.8.8.8:53 13.227.111.52.in-addr.arpa udp
US 8.8.8.8:53 zdzdzdzd.kro.kr udp
US 8.8.8.8:53 zdzdzdzd.kro.kr udp
US 8.8.8.8:53 zdzdzdzd.kro.kr udp
US 8.8.8.8:53 zdzdzdzd.kro.kr udp
US 8.8.8.8:53 zdzdzdzd.kro.kr udp
US 8.8.8.8:53 zdzdzdzd.kro.kr udp
US 8.8.8.8:53 zdzdzdzd.kro.kr udp
US 8.8.8.8:53 zdzdzdzd.kro.kr udp
US 8.8.8.8:53 zdzdzdzd.kro.kr udp
US 8.8.8.8:53 2.173.189.20.in-addr.arpa udp
US 8.8.8.8:53 zdzdzdzd.kro.kr udp
US 8.8.8.8:53 zdzdzdzd.kro.kr udp
US 8.8.8.8:53 zdzdzdzd.kro.kr udp

Files

memory/4168-0-0x0000000074952000-0x0000000074953000-memory.dmp

memory/4168-1-0x0000000074950000-0x0000000074F01000-memory.dmp

memory/4168-2-0x0000000074950000-0x0000000074F01000-memory.dmp

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

MD5 ff1fe20d8f6b65a29271808f5a372e69
SHA1 0b59bec87fbc249ff555bd4425b782d6a7a8514d
SHA256 ce73db2cfd2db2efd22f1fe44ce3bf428647751bd89dbb467c85578f00788130
SHA512 a485e9d305ca0e0e3a1b4b042b30cd2f051298a1b501d9e3f38c6adc28991180213fc2241f43b548edfe2e6c294f0360e2d90c817fef4fe64c8698e7429b36b8

memory/4168-12-0x0000000074950000-0x0000000074F01000-memory.dmp

memory/1456-13-0x0000000074950000-0x0000000074F01000-memory.dmp

memory/1456-14-0x0000000074950000-0x0000000074F01000-memory.dmp