Malware Analysis Report

2025-03-15 06:27

Sample ID 240119-nv8kgadgf2
Target 6789cecc505f1df9b92f14e313f17909
SHA256 6a0c4323f4136983cdb028b083730ac7dc3127087f495354dc3d8c07279aff92
Tags
njrat hacked 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

6a0c4323f4136983cdb028b083730ac7dc3127087f495354dc3d8c07279aff92

Threat Level: Known bad

The file 6789cecc505f1df9b92f14e313f17909 was found to be: Known bad.

Malicious Activity Summary

njrat hacked evasion persistence trojan

njRAT/Bladabindi

Modifies Windows Firewall

Checks computer location settings

Drops startup file

Executes dropped EXE

Loads dropped DLL

Drops desktop.ini file(s)

Adds Run key to start application

Drops file in Windows directory

Enumerates physical storage devices

Unsigned PE

Suspicious use of WriteProcessMemory

Suspicious use of AdjustPrivilegeToken

Suspicious behavior: EnumeratesProcesses

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-01-19 11:44

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-01-19 11:44

Reported

2024-01-19 11:46

Platform

win7-20231215-en

Max time kernel

150s

Max time network

144s

Command Line

"C:\Users\Admin\AppData\Local\Temp\6789cecc505f1df9b92f14e313f17909.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\5f805e177fa7c673482c92c255460b67.exe C:\Users\Admin\AppData\Roaming\System.exe N/A
File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\5f805e177fa7c673482c92c255460b67.exe C:\Users\Admin\AppData\Roaming\System.exe N/A

Executes dropped EXE

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Roaming\CJRqJYXiFF6jGf2AbP16.exe N/A
N/A N/A C:\Users\Admin\AppData\Roaming\System.exe N/A

Adds Run key to start application

persistence
Description Indicator Process Target
Set value (str) \REGISTRY\USER\S-1-5-21-3427588347-1492276948-3422228430-1000\Software\Microsoft\Windows\CurrentVersion\Run\5f805e177fa7c673482c92c255460b67 = "\"C:\\Users\\Admin\\AppData\\Roaming\\System.exe\" .." C:\Users\Admin\AppData\Roaming\System.exe N/A
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\5f805e177fa7c673482c92c255460b67 = "\"C:\\Users\\Admin\\AppData\\Roaming\\System.exe\" .." C:\Users\Admin\AppData\Roaming\System.exe N/A

Enumerates physical storage devices

Suspicious behavior: EnumeratesProcesses

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Roaming\System.exe N/A
N/A N/A C:\Users\Admin\AppData\Roaming\System.exe N/A
N/A N/A C:\Users\Admin\AppData\Roaming\System.exe N/A
N/A N/A C:\Users\Admin\AppData\Roaming\System.exe N/A
N/A N/A C:\Users\Admin\AppData\Roaming\System.exe N/A
N/A N/A C:\Users\Admin\AppData\Roaming\System.exe N/A
N/A N/A C:\Users\Admin\AppData\Roaming\System.exe N/A
N/A N/A C:\Users\Admin\AppData\Roaming\System.exe N/A
N/A N/A C:\Users\Admin\AppData\Roaming\System.exe N/A
N/A N/A C:\Users\Admin\AppData\Roaming\System.exe N/A
N/A N/A C:\Users\Admin\AppData\Roaming\System.exe N/A
N/A N/A C:\Users\Admin\AppData\Roaming\System.exe N/A
N/A N/A C:\Users\Admin\AppData\Roaming\System.exe N/A
N/A N/A C:\Users\Admin\AppData\Roaming\System.exe N/A
N/A N/A C:\Users\Admin\AppData\Roaming\System.exe N/A
N/A N/A C:\Users\Admin\AppData\Roaming\System.exe N/A
N/A N/A C:\Users\Admin\AppData\Roaming\System.exe N/A
N/A N/A C:\Users\Admin\AppData\Roaming\System.exe N/A
N/A N/A C:\Users\Admin\AppData\Roaming\System.exe N/A
N/A N/A C:\Users\Admin\AppData\Roaming\System.exe N/A
N/A N/A C:\Users\Admin\AppData\Roaming\System.exe N/A
N/A N/A C:\Users\Admin\AppData\Roaming\System.exe N/A
N/A N/A C:\Users\Admin\AppData\Roaming\System.exe N/A
N/A N/A C:\Users\Admin\AppData\Roaming\System.exe N/A
N/A N/A C:\Users\Admin\AppData\Roaming\System.exe N/A
N/A N/A C:\Users\Admin\AppData\Roaming\System.exe N/A
N/A N/A C:\Users\Admin\AppData\Roaming\System.exe N/A
N/A N/A C:\Users\Admin\AppData\Roaming\System.exe N/A
N/A N/A C:\Users\Admin\AppData\Roaming\System.exe N/A
N/A N/A C:\Users\Admin\AppData\Roaming\System.exe N/A
N/A N/A C:\Users\Admin\AppData\Roaming\System.exe N/A
N/A N/A C:\Users\Admin\AppData\Roaming\System.exe N/A
N/A N/A C:\Users\Admin\AppData\Roaming\System.exe N/A
N/A N/A C:\Users\Admin\AppData\Roaming\System.exe N/A

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Local\Temp\6789cecc505f1df9b92f14e313f17909.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\6789cecc505f1df9b92f14e313f17909.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\6789cecc505f1df9b92f14e313f17909.exe N/A
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Roaming\System.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 1588 wrote to memory of 2692 N/A C:\Users\Admin\AppData\Local\Temp\6789cecc505f1df9b92f14e313f17909.exe C:\Users\Admin\AppData\Roaming\CJRqJYXiFF6jGf2AbP16.exe
PID 1588 wrote to memory of 2692 N/A C:\Users\Admin\AppData\Local\Temp\6789cecc505f1df9b92f14e313f17909.exe C:\Users\Admin\AppData\Roaming\CJRqJYXiFF6jGf2AbP16.exe
PID 1588 wrote to memory of 2692 N/A C:\Users\Admin\AppData\Local\Temp\6789cecc505f1df9b92f14e313f17909.exe C:\Users\Admin\AppData\Roaming\CJRqJYXiFF6jGf2AbP16.exe
PID 1588 wrote to memory of 2692 N/A C:\Users\Admin\AppData\Local\Temp\6789cecc505f1df9b92f14e313f17909.exe C:\Users\Admin\AppData\Roaming\CJRqJYXiFF6jGf2AbP16.exe
PID 2692 wrote to memory of 2696 N/A C:\Users\Admin\AppData\Roaming\CJRqJYXiFF6jGf2AbP16.exe C:\Users\Admin\AppData\Roaming\System.exe
PID 2692 wrote to memory of 2696 N/A C:\Users\Admin\AppData\Roaming\CJRqJYXiFF6jGf2AbP16.exe C:\Users\Admin\AppData\Roaming\System.exe
PID 2692 wrote to memory of 2696 N/A C:\Users\Admin\AppData\Roaming\CJRqJYXiFF6jGf2AbP16.exe C:\Users\Admin\AppData\Roaming\System.exe
PID 2692 wrote to memory of 2696 N/A C:\Users\Admin\AppData\Roaming\CJRqJYXiFF6jGf2AbP16.exe C:\Users\Admin\AppData\Roaming\System.exe
PID 2696 wrote to memory of 2792 N/A C:\Users\Admin\AppData\Roaming\System.exe C:\Windows\SysWOW64\netsh.exe
PID 2696 wrote to memory of 2792 N/A C:\Users\Admin\AppData\Roaming\System.exe C:\Windows\SysWOW64\netsh.exe
PID 2696 wrote to memory of 2792 N/A C:\Users\Admin\AppData\Roaming\System.exe C:\Windows\SysWOW64\netsh.exe
PID 2696 wrote to memory of 2792 N/A C:\Users\Admin\AppData\Roaming\System.exe C:\Windows\SysWOW64\netsh.exe

Processes

C:\Users\Admin\AppData\Local\Temp\6789cecc505f1df9b92f14e313f17909.exe

"C:\Users\Admin\AppData\Local\Temp\6789cecc505f1df9b92f14e313f17909.exe"

C:\Users\Admin\AppData\Roaming\CJRqJYXiFF6jGf2AbP16.exe

"C:\Users\Admin\AppData\Roaming\CJRqJYXiFF6jGf2AbP16.exe"

C:\Users\Admin\AppData\Roaming\System.exe

"C:\Users\Admin\AppData\Roaming\System.exe"

C:\Windows\SysWOW64\netsh.exe

netsh firewall add allowedprogram "C:\Users\Admin\AppData\Roaming\System.exe" "System.exe" ENABLE

Network

Country Destination Domain Proto
US 8.8.8.8:53 nj.con-ip.com udp
DZ 41.107.65.191:1177 nj.con-ip.com tcp
DZ 41.107.65.191:1177 nj.con-ip.com tcp
DZ 41.107.65.191:1177 nj.con-ip.com tcp
DZ 41.107.65.191:1177 nj.con-ip.com tcp
DZ 41.107.65.191:1177 nj.con-ip.com tcp
DZ 41.107.65.191:1177 nj.con-ip.com tcp

Files

memory/1588-0-0x00000000740B0000-0x000000007465B000-memory.dmp

memory/1588-2-0x0000000001EB0000-0x0000000001EF0000-memory.dmp

memory/1588-1-0x00000000740B0000-0x000000007465B000-memory.dmp

\Users\Admin\AppData\Roaming\CJRqJYXiFF6jGf2AbP16.exe

MD5 77f54ad81c4e3267c773d90e6f14feb3
SHA1 47af82fe19c20b59aef9a4394d41a5b8fc22310b
SHA256 d4926fd99c2edf0b5a1a82e0895e6b466370562361507fb9eda6ad82c0026b1f
SHA512 806dc86dcbde255e18bac8e45d32a18fabe4d5061fe680add7a7deaf92a67417fb9f436192c509b4f29322f69c1b49215d1db7b1ee76085e3d44f6da04d51bb9

memory/1588-10-0x00000000740B0000-0x000000007465B000-memory.dmp

memory/2692-11-0x00000000740B0000-0x000000007465B000-memory.dmp

memory/2692-12-0x00000000740B0000-0x000000007465B000-memory.dmp

memory/2692-20-0x00000000740B0000-0x000000007465B000-memory.dmp

memory/2696-21-0x00000000740B0000-0x000000007465B000-memory.dmp

memory/2696-23-0x00000000001A0000-0x00000000001E0000-memory.dmp

memory/2696-24-0x00000000740B0000-0x000000007465B000-memory.dmp

memory/2696-25-0x00000000740B0000-0x000000007465B000-memory.dmp

memory/2696-26-0x00000000001A0000-0x00000000001E0000-memory.dmp

memory/2696-27-0x00000000001A0000-0x00000000001E0000-memory.dmp

memory/2696-28-0x00000000001A0000-0x00000000001E0000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-01-19 11:44

Reported

2024-01-19 11:46

Platform

win10v2004-20231215-en

Max time kernel

149s

Max time network

146s

Command Line

"C:\Users\Admin\AppData\Local\Temp\6789cecc505f1df9b92f14e313f17909.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-1-5-21-768304381-2824894965-3840216961-1000\Control Panel\International\Geo\Nation C:\Users\Admin\AppData\Local\Temp\6789cecc505f1df9b92f14e313f17909.exe N/A
Key value queried \REGISTRY\USER\S-1-5-21-768304381-2824894965-3840216961-1000\Control Panel\International\Geo\Nation C:\Users\Admin\AppData\Roaming\CJRqJYXiFF6jGf2AbP16.exe N/A

Drops startup file

Description Indicator Process Target
File created C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\5f805e177fa7c673482c92c255460b67.exe C:\Users\Admin\AppData\Roaming\System.exe N/A
File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\5f805e177fa7c673482c92c255460b67.exe C:\Users\Admin\AppData\Roaming\System.exe N/A

Executes dropped EXE

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Roaming\CJRqJYXiFF6jGf2AbP16.exe N/A
N/A N/A C:\Users\Admin\AppData\Roaming\System.exe N/A

Adds Run key to start application

persistence
Description Indicator Process Target
Set value (str) \REGISTRY\USER\S-1-5-21-768304381-2824894965-3840216961-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\5f805e177fa7c673482c92c255460b67 = "\"C:\\Users\\Admin\\AppData\\Roaming\\System.exe\" .." C:\Users\Admin\AppData\Roaming\System.exe N/A
Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\5f805e177fa7c673482c92c255460b67 = "\"C:\\Users\\Admin\\AppData\\Roaming\\System.exe\" .." C:\Users\Admin\AppData\Roaming\System.exe N/A

Drops desktop.ini file(s)

Description Indicator Process Target
File created C:\Windows\assembly\Desktop.ini C:\Users\Admin\AppData\Local\Temp\6789cecc505f1df9b92f14e313f17909.exe N/A
File opened for modification C:\Windows\assembly\Desktop.ini C:\Users\Admin\AppData\Local\Temp\6789cecc505f1df9b92f14e313f17909.exe N/A

Drops file in Windows directory

Description Indicator Process Target
File opened for modification C:\Windows\assembly C:\Users\Admin\AppData\Local\Temp\6789cecc505f1df9b92f14e313f17909.exe N/A
File created C:\Windows\assembly\Desktop.ini C:\Users\Admin\AppData\Local\Temp\6789cecc505f1df9b92f14e313f17909.exe N/A
File opened for modification C:\Windows\assembly\Desktop.ini C:\Users\Admin\AppData\Local\Temp\6789cecc505f1df9b92f14e313f17909.exe N/A

Enumerates physical storage devices

Suspicious behavior: EnumeratesProcesses

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Roaming\System.exe N/A
N/A N/A C:\Users\Admin\AppData\Roaming\System.exe N/A
N/A N/A C:\Users\Admin\AppData\Roaming\System.exe N/A
N/A N/A C:\Users\Admin\AppData\Roaming\System.exe N/A
N/A N/A C:\Users\Admin\AppData\Roaming\System.exe N/A
N/A N/A C:\Users\Admin\AppData\Roaming\System.exe N/A
N/A N/A C:\Users\Admin\AppData\Roaming\System.exe N/A
N/A N/A C:\Users\Admin\AppData\Roaming\System.exe N/A
N/A N/A C:\Users\Admin\AppData\Roaming\System.exe N/A
N/A N/A C:\Users\Admin\AppData\Roaming\System.exe N/A
N/A N/A C:\Users\Admin\AppData\Roaming\System.exe N/A
N/A N/A C:\Users\Admin\AppData\Roaming\System.exe N/A
N/A N/A C:\Users\Admin\AppData\Roaming\System.exe N/A
N/A N/A C:\Users\Admin\AppData\Roaming\System.exe N/A
N/A N/A C:\Users\Admin\AppData\Roaming\System.exe N/A
N/A N/A C:\Users\Admin\AppData\Roaming\System.exe N/A
N/A N/A C:\Users\Admin\AppData\Roaming\System.exe N/A
N/A N/A C:\Users\Admin\AppData\Roaming\System.exe N/A
N/A N/A C:\Users\Admin\AppData\Roaming\System.exe N/A
N/A N/A C:\Users\Admin\AppData\Roaming\System.exe N/A
N/A N/A C:\Users\Admin\AppData\Roaming\System.exe N/A
N/A N/A C:\Users\Admin\AppData\Roaming\System.exe N/A
N/A N/A C:\Users\Admin\AppData\Roaming\System.exe N/A
N/A N/A C:\Users\Admin\AppData\Roaming\System.exe N/A
N/A N/A C:\Users\Admin\AppData\Roaming\System.exe N/A
N/A N/A C:\Users\Admin\AppData\Roaming\System.exe N/A
N/A N/A C:\Users\Admin\AppData\Roaming\System.exe N/A
N/A N/A C:\Users\Admin\AppData\Roaming\System.exe N/A
N/A N/A C:\Users\Admin\AppData\Roaming\System.exe N/A
N/A N/A C:\Users\Admin\AppData\Roaming\System.exe N/A
N/A N/A C:\Users\Admin\AppData\Roaming\System.exe N/A
N/A N/A C:\Users\Admin\AppData\Roaming\System.exe N/A
N/A N/A C:\Users\Admin\AppData\Roaming\System.exe N/A
N/A N/A C:\Users\Admin\AppData\Roaming\System.exe N/A
N/A N/A C:\Users\Admin\AppData\Roaming\System.exe N/A
N/A N/A C:\Users\Admin\AppData\Roaming\System.exe N/A
N/A N/A C:\Users\Admin\AppData\Roaming\System.exe N/A
N/A N/A C:\Users\Admin\AppData\Roaming\System.exe N/A
N/A N/A C:\Users\Admin\AppData\Roaming\System.exe N/A
N/A N/A C:\Users\Admin\AppData\Roaming\System.exe N/A
N/A N/A C:\Users\Admin\AppData\Roaming\System.exe N/A
N/A N/A C:\Users\Admin\AppData\Roaming\System.exe N/A
N/A N/A C:\Users\Admin\AppData\Roaming\System.exe N/A
N/A N/A C:\Users\Admin\AppData\Roaming\System.exe N/A
N/A N/A C:\Users\Admin\AppData\Roaming\System.exe N/A
N/A N/A C:\Users\Admin\AppData\Roaming\System.exe N/A
N/A N/A C:\Users\Admin\AppData\Roaming\System.exe N/A
N/A N/A C:\Users\Admin\AppData\Roaming\System.exe N/A

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Local\Temp\6789cecc505f1df9b92f14e313f17909.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\6789cecc505f1df9b92f14e313f17909.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\6789cecc505f1df9b92f14e313f17909.exe N/A
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Roaming\System.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\6789cecc505f1df9b92f14e313f17909.exe

"C:\Users\Admin\AppData\Local\Temp\6789cecc505f1df9b92f14e313f17909.exe"

C:\Users\Admin\AppData\Roaming\CJRqJYXiFF6jGf2AbP16.exe

"C:\Users\Admin\AppData\Roaming\CJRqJYXiFF6jGf2AbP16.exe"

C:\Users\Admin\AppData\Roaming\System.exe

"C:\Users\Admin\AppData\Roaming\System.exe"

C:\Windows\SysWOW64\netsh.exe

netsh firewall add allowedprogram "C:\Users\Admin\AppData\Roaming\System.exe" "System.exe" ENABLE

Network

Country Destination Domain Proto
US 8.8.8.8:53 133.211.185.52.in-addr.arpa udp
US 8.8.8.8:53 173.178.17.96.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 nj.con-ip.com udp
DZ 41.107.65.191:1177 nj.con-ip.com tcp
US 8.8.8.8:53 104.219.191.52.in-addr.arpa udp
DZ 41.107.65.191:1177 nj.con-ip.com tcp
US 8.8.8.8:53 26.165.165.52.in-addr.arpa udp
US 8.8.8.8:53 15.164.165.52.in-addr.arpa udp
US 8.8.8.8:53 217.135.221.88.in-addr.arpa udp
DZ 41.107.65.191:1177 nj.con-ip.com tcp
US 8.8.8.8:53 202.178.17.96.in-addr.arpa udp
DZ 41.107.65.191:1177 nj.con-ip.com tcp
US 8.8.8.8:53 14.227.111.52.in-addr.arpa udp
US 8.8.8.8:53 187.178.17.96.in-addr.arpa udp
DZ 41.107.65.191:1177 nj.con-ip.com tcp
DZ 41.107.65.191:1177 nj.con-ip.com tcp

Files

memory/4460-0-0x0000000074AB0000-0x0000000075061000-memory.dmp

memory/4460-1-0x0000000074AB0000-0x0000000075061000-memory.dmp

memory/4460-2-0x00000000015E0000-0x00000000015F0000-memory.dmp

C:\Users\Admin\AppData\Roaming\CJRqJYXiFF6jGf2AbP16.exe

MD5 77f54ad81c4e3267c773d90e6f14feb3
SHA1 47af82fe19c20b59aef9a4394d41a5b8fc22310b
SHA256 d4926fd99c2edf0b5a1a82e0895e6b466370562361507fb9eda6ad82c0026b1f
SHA512 806dc86dcbde255e18bac8e45d32a18fabe4d5061fe680add7a7deaf92a67417fb9f436192c509b4f29322f69c1b49215d1db7b1ee76085e3d44f6da04d51bb9

memory/4460-14-0x0000000074AB0000-0x0000000075061000-memory.dmp

memory/1724-16-0x0000000074AB0000-0x0000000075061000-memory.dmp

memory/1724-17-0x0000000001A30000-0x0000000001A40000-memory.dmp

memory/1724-18-0x0000000074AB0000-0x0000000075061000-memory.dmp

memory/1724-27-0x0000000074AB0000-0x0000000075061000-memory.dmp

memory/2976-29-0x0000000074AB0000-0x0000000075061000-memory.dmp

memory/2976-30-0x00000000013E0000-0x00000000013F0000-memory.dmp

memory/2976-31-0x0000000074AB0000-0x0000000075061000-memory.dmp

memory/2976-32-0x00000000013E0000-0x00000000013F0000-memory.dmp

memory/2976-33-0x0000000074AB0000-0x0000000075061000-memory.dmp

memory/2976-34-0x00000000013E0000-0x00000000013F0000-memory.dmp