Malware Analysis Report

2025-01-22 13:52

Sample ID 240827-fpre1ateqd
Target c4638c93bd124746244d43dc15faace8_JaffaCakes118
SHA256 2232b50bd5e872f159cafded24c853d3b07328e1977ebbf399c480329220fa4a
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

2232b50bd5e872f159cafded24c853d3b07328e1977ebbf399c480329220fa4a

Threat Level: Known bad

The file c4638c93bd124746244d43dc15faace8_JaffaCakes118 was found to be: Known bad.

Malicious Activity Summary

hacked njrat discovery evasion persistence privilege_escalation trojan

njRAT/Bladabindi

Njrat family

Modifies Windows Firewall

Drops startup file

Loads dropped DLL

Checks computer location settings

Executes dropped EXE

Adds Run key to start application

System Location Discovery: System Language Discovery

Unsigned PE

Enumerates physical storage devices

Event Triggered Execution: Netsh Helper DLL

Suspicious use of AdjustPrivilegeToken

Suspicious use of WriteProcessMemory

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-08-27 05:03

Signatures

Njrat family

njrat

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-08-27 05:03

Reported

2024-08-27 05:05

Platform

win7-20240704-en

Max time kernel

149s

Max time network

121s

Command Line

"C:\Users\Admin\AppData\Local\Temp\c4638c93bd124746244d43dc15faace8_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\bfad6d74138a6d7abc3bd0ae4aa3394a.exe C:\Users\Admin\AppData\Local\Temp\taskmsr.exe N/A
File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\bfad6d74138a6d7abc3bd0ae4aa3394a.exe C:\Users\Admin\AppData\Local\Temp\taskmsr.exe N/A

Executes dropped EXE

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

Loads dropped DLL

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\c4638c93bd124746244d43dc15faace8_JaffaCakes118.exe N/A

Adds Run key to start application

persistence
Description Indicator Process Target
Set value (str) \REGISTRY\USER\S-1-5-21-3434294380-2554721341-1919518612-1000\Software\Microsoft\Windows\CurrentVersion\Run\bfad6d74138a6d7abc3bd0ae4aa3394a = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\taskmsr.exe\" .." C:\Users\Admin\AppData\Local\Temp\taskmsr.exe N/A
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\bfad6d74138a6d7abc3bd0ae4aa3394a = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\taskmsr.exe\" .." C:\Users\Admin\AppData\Local\Temp\taskmsr.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\c4638c93bd124746244d43dc15faace8_JaffaCakes118.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Users\Admin\AppData\Local\Temp\taskmsr.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\taskmsr.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\taskmsr.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\taskmsr.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\taskmsr.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\taskmsr.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\taskmsr.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\taskmsr.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\taskmsr.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\taskmsr.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\taskmsr.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\taskmsr.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\taskmsr.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\taskmsr.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\taskmsr.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\taskmsr.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\taskmsr.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\taskmsr.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\taskmsr.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\taskmsr.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\taskmsr.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\taskmsr.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\taskmsr.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\taskmsr.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\taskmsr.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\taskmsr.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\taskmsr.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\taskmsr.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\taskmsr.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\taskmsr.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\taskmsr.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\taskmsr.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\taskmsr.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\taskmsr.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\taskmsr.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\taskmsr.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\c4638c93bd124746244d43dc15faace8_JaffaCakes118.exe

"C:\Users\Admin\AppData\Local\Temp\c4638c93bd124746244d43dc15faace8_JaffaCakes118.exe"

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

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

C:\Windows\SysWOW64\netsh.exe

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

Network

Country Destination Domain Proto
US 8.8.8.8:53 eladawi.zapto.org udp

Files

memory/2212-0-0x0000000074841000-0x0000000074842000-memory.dmp

memory/2212-1-0x0000000074840000-0x0000000074DEB000-memory.dmp

memory/2212-2-0x0000000074840000-0x0000000074DEB000-memory.dmp

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

MD5 c4638c93bd124746244d43dc15faace8
SHA1 29422972d0c013fd6c74d523f2f235dba34a824f
SHA256 2232b50bd5e872f159cafded24c853d3b07328e1977ebbf399c480329220fa4a
SHA512 7e1eadf1d1ce58f19ba6ca69645a42c176db0db617093efbe539060e8c13a07555286d578154701fa5122bd1e2b403229cacf5fd019d4be48c0db44995578954

memory/2568-11-0x0000000074840000-0x0000000074DEB000-memory.dmp

memory/2212-10-0x0000000074840000-0x0000000074DEB000-memory.dmp

memory/2568-13-0x0000000074840000-0x0000000074DEB000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-08-27 05:03

Reported

2024-08-27 05:05

Platform

win10v2004-20240802-en

Max time kernel

150s

Max time network

149s

Command Line

"C:\Users\Admin\AppData\Local\Temp\c4638c93bd124746244d43dc15faace8_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-1-5-21-786284298-625481688-3210388970-1000\Control Panel\International\Geo\Nation C:\Users\Admin\AppData\Local\Temp\c4638c93bd124746244d43dc15faace8_JaffaCakes118.exe N/A

Drops startup file

Description Indicator Process Target
File created C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\bfad6d74138a6d7abc3bd0ae4aa3394a.exe C:\Users\Admin\AppData\Local\Temp\taskmsr.exe N/A
File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\bfad6d74138a6d7abc3bd0ae4aa3394a.exe C:\Users\Admin\AppData\Local\Temp\taskmsr.exe N/A

Executes dropped EXE

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

Adds Run key to start application

persistence
Description Indicator Process Target
Set value (str) \REGISTRY\USER\S-1-5-21-786284298-625481688-3210388970-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\bfad6d74138a6d7abc3bd0ae4aa3394a = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\taskmsr.exe\" .." C:\Users\Admin\AppData\Local\Temp\taskmsr.exe N/A
Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\bfad6d74138a6d7abc3bd0ae4aa3394a = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\taskmsr.exe\" .." C:\Users\Admin\AppData\Local\Temp\taskmsr.exe N/A

Enumerates physical storage devices

Event Triggered Execution: Netsh Helper DLL

persistence privilege_escalation
Description Indicator Process Target
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
Key opened \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\c4638c93bd124746244d43dc15faace8_JaffaCakes118.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Users\Admin\AppData\Local\Temp\taskmsr.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\taskmsr.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\taskmsr.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\taskmsr.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\taskmsr.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\taskmsr.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\taskmsr.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\taskmsr.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\taskmsr.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\taskmsr.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\taskmsr.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\taskmsr.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\taskmsr.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\taskmsr.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\taskmsr.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\taskmsr.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\taskmsr.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\taskmsr.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\taskmsr.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\taskmsr.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\taskmsr.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\taskmsr.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\taskmsr.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\taskmsr.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\taskmsr.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\taskmsr.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\taskmsr.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\taskmsr.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\taskmsr.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\taskmsr.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\taskmsr.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\taskmsr.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\taskmsr.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\taskmsr.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\taskmsr.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\taskmsr.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\c4638c93bd124746244d43dc15faace8_JaffaCakes118.exe

"C:\Users\Admin\AppData\Local\Temp\c4638c93bd124746244d43dc15faace8_JaffaCakes118.exe"

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

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

C:\Windows\SysWOW64\netsh.exe

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

Network

Country Destination Domain Proto
US 8.8.8.8:53 8.8.8.8.in-addr.arpa udp
US 8.8.8.8:53 209.205.72.20.in-addr.arpa udp
US 8.8.8.8:53 240.221.184.93.in-addr.arpa udp
US 8.8.8.8:53 68.32.126.40.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 43.58.199.20.in-addr.arpa udp
US 8.8.8.8:53 196.249.167.52.in-addr.arpa udp
US 8.8.8.8:53 228.249.119.40.in-addr.arpa udp
US 8.8.8.8:53 eladawi.zapto.org udp
US 8.8.8.8:53 eladawi.zapto.org udp
US 8.8.8.8:53 eladawi.zapto.org udp
US 8.8.8.8:53 103.169.127.40.in-addr.arpa udp
US 8.8.8.8:53 198.187.3.20.in-addr.arpa udp
US 8.8.8.8:53 172.210.232.199.in-addr.arpa udp
US 8.8.8.8:53 eladawi.zapto.org udp
US 8.8.8.8:53 eladawi.zapto.org udp
US 8.8.8.8:53 eladawi.zapto.org udp
US 8.8.8.8:53 eladawi.zapto.org udp
US 8.8.8.8:53 eladawi.zapto.org udp
US 8.8.8.8:53 eladawi.zapto.org udp
US 8.8.8.8:53 eladawi.zapto.org udp
US 8.8.8.8:53 eladawi.zapto.org udp
US 8.8.8.8:53 eladawi.zapto.org udp
US 8.8.8.8:53 eladawi.zapto.org udp
US 8.8.8.8:53 eladawi.zapto.org udp
US 8.8.8.8:53 tse1.mm.bing.net udp
US 150.171.27.10:443 tse1.mm.bing.net tcp
US 150.171.27.10:443 tse1.mm.bing.net tcp
US 150.171.27.10:443 tse1.mm.bing.net tcp
US 150.171.27.10:443 tse1.mm.bing.net tcp
US 150.171.27.10:443 tse1.mm.bing.net tcp
US 8.8.8.8:53 45.19.74.20.in-addr.arpa udp
US 8.8.8.8:53 eladawi.zapto.org udp
US 8.8.8.8:53 eladawi.zapto.org udp
US 8.8.8.8:53 eladawi.zapto.org udp
US 8.8.8.8:53 eladawi.zapto.org udp
US 8.8.8.8:53 eladawi.zapto.org udp
US 8.8.8.8:53 eladawi.zapto.org udp
US 8.8.8.8:53 eladawi.zapto.org udp
US 8.8.8.8:53 eladawi.zapto.org udp
US 8.8.8.8:53 eladawi.zapto.org udp

Files

memory/3724-0-0x0000000075192000-0x0000000075193000-memory.dmp

memory/3724-1-0x0000000075190000-0x0000000075741000-memory.dmp

memory/3724-2-0x0000000075190000-0x0000000075741000-memory.dmp

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

MD5 c4638c93bd124746244d43dc15faace8
SHA1 29422972d0c013fd6c74d523f2f235dba34a824f
SHA256 2232b50bd5e872f159cafded24c853d3b07328e1977ebbf399c480329220fa4a
SHA512 7e1eadf1d1ce58f19ba6ca69645a42c176db0db617093efbe539060e8c13a07555286d578154701fa5122bd1e2b403229cacf5fd019d4be48c0db44995578954

memory/3724-13-0x0000000075190000-0x0000000075741000-memory.dmp

memory/4380-14-0x0000000075190000-0x0000000075741000-memory.dmp

memory/4380-12-0x0000000075190000-0x0000000075741000-memory.dmp

memory/4380-15-0x0000000075190000-0x0000000075741000-memory.dmp

memory/4380-17-0x0000000075190000-0x0000000075741000-memory.dmp