Malware Analysis Report

2025-01-22 14:04

Sample ID 240229-zzlr2scf3v
Target af7a066fd0f8019f24d87e5242cbc629
SHA256 8439c9df064fdbfcae73b11a271f8b1e6f39d03a80fedd5872b15ca5a4d3a9f9
Tags
njrat evasion persistence trojan hacked
score
10/10

Table of Contents

Analysis Overview

MITRE ATT&CK

Enterprise Matrix V15

Analysis: static1

Detonation Overview

Signatures

Analysis: behavioral2

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis: behavioral1

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis Overview

score
10/10

SHA256

8439c9df064fdbfcae73b11a271f8b1e6f39d03a80fedd5872b15ca5a4d3a9f9

Threat Level: Known bad

The file af7a066fd0f8019f24d87e5242cbc629 was found to be: Known bad.

Malicious Activity Summary

njrat evasion persistence trojan hacked

njRAT/Bladabindi

Modifies Windows Firewall

Loads dropped DLL

Checks computer location settings

Executes dropped EXE

Adds Run key to start application

Unsigned PE

Enumerates physical storage devices

Suspicious use of WriteProcessMemory

Suspicious use of AdjustPrivilegeToken

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-02-29 21:09

Signatures

Unsigned PE

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

Analysis: behavioral2

Detonation Overview

Submitted

2024-02-29 21:09

Reported

2024-02-29 21:12

Platform

win10v2004-20240226-en

Max time kernel

162s

Max time network

161s

Command Line

"C:\Users\Admin\AppData\Local\Temp\af7a066fd0f8019f24d87e5242cbc629.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-1-5-21-3808065738-1666277613-1125846146-1000\Control Panel\International\Geo\Nation C:\Users\Admin\AppData\Local\Temp\af7a066fd0f8019f24d87e5242cbc629.exe N/A
Key value queried \REGISTRY\USER\S-1-5-21-3808065738-1666277613-1125846146-1000\Control Panel\International\Geo\Nation C:\Users\Admin\AppData\Local\Temp\.exe N/A

Executes dropped EXE

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\.exe N/A
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-1-5-21-3808065738-1666277613-1125846146-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\279f6960ed84a752570aca7fb2dc1552 = "\"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\279f6960ed84a752570aca7fb2dc1552 = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\server.exe\" .." C:\Users\Admin\AppData\Local\Temp\server.exe N/A

Enumerates physical storage devices

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

Processes

C:\Users\Admin\AppData\Local\Temp\af7a066fd0f8019f24d87e5242cbc629.exe

"C:\Users\Admin\AppData\Local\Temp\af7a066fd0f8019f24d87e5242cbc629.exe"

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

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

C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe

"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --no-appcompat-clear --mojo-platform-channel-handle=3988 --field-trial-handle=2276,i,11674642242468042059,14711253743544118298,262144 --variations-seed-version /prefetch:8

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 8.8.8.8:53 140.32.126.40.in-addr.arpa udp
US 8.8.8.8:53 88.156.103.20.in-addr.arpa udp
US 8.8.8.8:53 179.178.17.96.in-addr.arpa udp
US 8.8.8.8:53 g.bing.com udp
US 204.79.197.200:443 g.bing.com tcp
US 8.8.8.8:53 200.197.79.204.in-addr.arpa udp
US 8.8.8.8:53 26.165.165.52.in-addr.arpa udp
US 8.8.8.8:53 198.187.3.20.in-addr.arpa udp
US 8.8.8.8:53 23.160.77.104.in-addr.arpa udp
US 8.8.8.8:53 0.204.248.87.in-addr.arpa udp
N/A 127.0.0.1:5552 tcp
N/A 127.0.0.1:5552 tcp
N/A 127.0.0.1:5552 tcp
N/A 127.0.0.1:5552 tcp
N/A 127.0.0.1:5552 tcp
N/A 127.0.0.1:5552 tcp
N/A 127.0.0.1:5552 tcp
N/A 127.0.0.1:5552 tcp
N/A 127.0.0.1:5552 tcp
N/A 127.0.0.1:5552 tcp
N/A 127.0.0.1:5552 tcp
N/A 127.0.0.1:5552 tcp
N/A 127.0.0.1:5552 tcp
N/A 127.0.0.1:5552 tcp
US 8.8.8.8:53 9.173.189.20.in-addr.arpa udp
N/A 127.0.0.1:5552 tcp
N/A 127.0.0.1:5552 tcp
N/A 127.0.0.1:5552 tcp
N/A 127.0.0.1:5552 tcp
N/A 127.0.0.1:5552 tcp
N/A 127.0.0.1:5552 tcp
N/A 127.0.0.1:5552 tcp

Files

memory/2324-0-0x0000000000380000-0x00000000003A4000-memory.dmp

memory/2324-1-0x00007FFA052F0000-0x00007FFA05DB1000-memory.dmp

memory/2324-3-0x00000000025B0000-0x00000000025C0000-memory.dmp

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

MD5 6a37d776ed563c963cf82ccf86747bf4
SHA1 5464506f881a97e5e6d4e420829f2b2efb649194
SHA256 f64d95307444247308846be26689cdc713bf65f9f5032a5a0d70a420a70846cc
SHA512 1b465b637817ed3e7c90206c59d5361ea3bbbac239a4f8e055278abca4461179eac49a8baa00d8800980934dcb0bfba5076d17e8841aa7cc786b58477c2b842d

memory/2324-11-0x00007FFA052F0000-0x00007FFA05DB1000-memory.dmp

memory/3572-13-0x00000000750F0000-0x00000000756A1000-memory.dmp

memory/3572-14-0x00000000750F0000-0x00000000756A1000-memory.dmp

memory/3572-15-0x0000000001760000-0x0000000001770000-memory.dmp

memory/3572-16-0x00000000750F0000-0x00000000756A1000-memory.dmp

memory/3572-17-0x00000000750F0000-0x00000000756A1000-memory.dmp

memory/32-26-0x00000000750F0000-0x00000000756A1000-memory.dmp

memory/32-27-0x00000000750F0000-0x00000000756A1000-memory.dmp

memory/3572-29-0x00000000750F0000-0x00000000756A1000-memory.dmp

memory/32-30-0x00000000750F0000-0x00000000756A1000-memory.dmp

memory/32-31-0x00000000750F0000-0x00000000756A1000-memory.dmp

memory/32-32-0x0000000001080000-0x0000000001090000-memory.dmp

Analysis: behavioral1

Detonation Overview

Submitted

2024-02-29 21:09

Reported

2024-02-29 21:12

Platform

win7-20240221-en

Max time kernel

153s

Max time network

126s

Command Line

"C:\Users\Admin\AppData\Local\Temp\af7a066fd0f8019f24d87e5242cbc629.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\.exe N/A
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\.exe N/A

Adds Run key to start application

persistence
Description Indicator Process Target
Set value (str) \REGISTRY\USER\S-1-5-21-406356229-2805545415-1236085040-1000\Software\Microsoft\Windows\CurrentVersion\Run\279f6960ed84a752570aca7fb2dc1552 = "\"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\279f6960ed84a752570aca7fb2dc1552 = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\server.exe\" .." C:\Users\Admin\AppData\Local\Temp\server.exe N/A

Enumerates physical storage devices

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

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 1712 wrote to memory of 2376 N/A C:\Users\Admin\AppData\Local\Temp\af7a066fd0f8019f24d87e5242cbc629.exe C:\Users\Admin\AppData\Local\Temp\.exe
PID 1712 wrote to memory of 2376 N/A C:\Users\Admin\AppData\Local\Temp\af7a066fd0f8019f24d87e5242cbc629.exe C:\Users\Admin\AppData\Local\Temp\.exe
PID 1712 wrote to memory of 2376 N/A C:\Users\Admin\AppData\Local\Temp\af7a066fd0f8019f24d87e5242cbc629.exe C:\Users\Admin\AppData\Local\Temp\.exe
PID 1712 wrote to memory of 2376 N/A C:\Users\Admin\AppData\Local\Temp\af7a066fd0f8019f24d87e5242cbc629.exe C:\Users\Admin\AppData\Local\Temp\.exe
PID 2376 wrote to memory of 2544 N/A C:\Users\Admin\AppData\Local\Temp\.exe C:\Users\Admin\AppData\Local\Temp\server.exe
PID 2376 wrote to memory of 2544 N/A C:\Users\Admin\AppData\Local\Temp\.exe C:\Users\Admin\AppData\Local\Temp\server.exe
PID 2376 wrote to memory of 2544 N/A C:\Users\Admin\AppData\Local\Temp\.exe C:\Users\Admin\AppData\Local\Temp\server.exe
PID 2376 wrote to memory of 2544 N/A C:\Users\Admin\AppData\Local\Temp\.exe C:\Users\Admin\AppData\Local\Temp\server.exe
PID 2544 wrote to memory of 2632 N/A C:\Users\Admin\AppData\Local\Temp\server.exe C:\Windows\SysWOW64\netsh.exe
PID 2544 wrote to memory of 2632 N/A C:\Users\Admin\AppData\Local\Temp\server.exe C:\Windows\SysWOW64\netsh.exe
PID 2544 wrote to memory of 2632 N/A C:\Users\Admin\AppData\Local\Temp\server.exe C:\Windows\SysWOW64\netsh.exe
PID 2544 wrote to memory of 2632 N/A C:\Users\Admin\AppData\Local\Temp\server.exe C:\Windows\SysWOW64\netsh.exe

Processes

C:\Users\Admin\AppData\Local\Temp\af7a066fd0f8019f24d87e5242cbc629.exe

"C:\Users\Admin\AppData\Local\Temp\af7a066fd0f8019f24d87e5242cbc629.exe"

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

"C:\Users\Admin\AppData\Local\Temp\.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
N/A 127.0.0.1:5552 tcp
N/A 127.0.0.1:5552 tcp
N/A 127.0.0.1:5552 tcp
N/A 127.0.0.1:5552 tcp
N/A 127.0.0.1:5552 tcp
N/A 127.0.0.1:5552 tcp
N/A 127.0.0.1:5552 tcp
N/A 127.0.0.1:5552 tcp
N/A 127.0.0.1:5552 tcp
N/A 127.0.0.1:5552 tcp
N/A 127.0.0.1:5552 tcp
N/A 127.0.0.1:5552 tcp
N/A 127.0.0.1:5552 tcp
N/A 127.0.0.1:5552 tcp
N/A 127.0.0.1:5552 tcp
N/A 127.0.0.1:5552 tcp
N/A 127.0.0.1:5552 tcp
N/A 127.0.0.1:5552 tcp
N/A 127.0.0.1:5552 tcp
N/A 127.0.0.1:5552 tcp
N/A 127.0.0.1:5552 tcp
N/A 127.0.0.1:5552 tcp
N/A 127.0.0.1:5552 tcp
N/A 127.0.0.1:5552 tcp
N/A 127.0.0.1:5552 tcp
N/A 127.0.0.1:5552 tcp
N/A 127.0.0.1:5552 tcp
N/A 127.0.0.1:5552 tcp
N/A 127.0.0.1:5552 tcp
N/A 127.0.0.1:5552 tcp
N/A 127.0.0.1:5552 tcp
N/A 127.0.0.1:5552 tcp
N/A 127.0.0.1:5552 tcp
N/A 127.0.0.1:5552 tcp
N/A 127.0.0.1:5552 tcp
N/A 127.0.0.1:5552 tcp
N/A 127.0.0.1:5552 tcp
N/A 127.0.0.1:5552 tcp
N/A 127.0.0.1:5552 tcp
N/A 127.0.0.1:5552 tcp
N/A 127.0.0.1:5552 tcp
N/A 127.0.0.1:5552 tcp
N/A 127.0.0.1:5552 tcp

Files

memory/1712-0-0x00000000008F0000-0x0000000000914000-memory.dmp

memory/1712-1-0x000007FEF5CA0000-0x000007FEF668C000-memory.dmp

memory/1712-3-0x000000001AEC0000-0x000000001AF40000-memory.dmp

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

MD5 6a37d776ed563c963cf82ccf86747bf4
SHA1 5464506f881a97e5e6d4e420829f2b2efb649194
SHA256 f64d95307444247308846be26689cdc713bf65f9f5032a5a0d70a420a70846cc
SHA512 1b465b637817ed3e7c90206c59d5361ea3bbbac239a4f8e055278abca4461179eac49a8baa00d8800980934dcb0bfba5076d17e8841aa7cc786b58477c2b842d

memory/1712-9-0x000007FEF5CA0000-0x000007FEF668C000-memory.dmp

memory/2376-10-0x0000000074C20000-0x00000000751CB000-memory.dmp

memory/2376-11-0x0000000074C20000-0x00000000751CB000-memory.dmp

memory/2376-12-0x0000000000B30000-0x0000000000B70000-memory.dmp

memory/2544-20-0x0000000074C20000-0x00000000751CB000-memory.dmp

memory/2376-21-0x0000000074C20000-0x00000000751CB000-memory.dmp

memory/2544-22-0x0000000074C20000-0x00000000751CB000-memory.dmp

memory/2544-23-0x0000000074C20000-0x00000000751CB000-memory.dmp