Malware Analysis Report

2025-03-15 06:06

Sample ID 240727-z1f8ysseng
Target 391eb94842f32dbe0e91fefca980b51c83676f853ddd8c279d2868b6d9239ff7
SHA256 391eb94842f32dbe0e91fefca980b51c83676f853ddd8c279d2868b6d9239ff7
Tags
njrat oct discovery 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

391eb94842f32dbe0e91fefca980b51c83676f853ddd8c279d2868b6d9239ff7

Threat Level: Known bad

The file 391eb94842f32dbe0e91fefca980b51c83676f853ddd8c279d2868b6d9239ff7 was found to be: Known bad.

Malicious Activity Summary

njrat oct discovery trojan

njRAT/Bladabindi

Drops startup file

AutoIT Executable

Suspicious use of SetThreadContext

Unsigned PE

System Location Discovery: System Language Discovery

Suspicious use of AdjustPrivilegeToken

Suspicious use of FindShellTrayWindow

Suspicious use of SendNotifyMessage

Suspicious use of WriteProcessMemory

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-07-27 21:10

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-07-27 21:10

Reported

2024-07-27 22:24

Platform

win7-20240708-en

Max time kernel

149s

Max time network

125s

Command Line

"C:\Users\Admin\AppData\Local\Temp\391eb94842f32dbe0e91fefca980b51c83676f853ddd8c279d2868b6d9239ff7.exe"

Signatures

njRAT/Bladabindi

trojan njrat

Drops startup file

Description Indicator Process Target
File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\sftp.url C:\Users\Admin\AppData\Local\Temp\391eb94842f32dbe0e91fefca980b51c83676f853ddd8c279d2868b6d9239ff7.exe N/A

AutoIT Executable

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

Suspicious use of SetThreadContext

Description Indicator Process Target
PID 2956 set thread context of 2236 N/A C:\Users\Admin\AppData\Local\Temp\391eb94842f32dbe0e91fefca980b51c83676f853ddd8c279d2868b6d9239ff7.exe C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe

System Location Discovery: System Language Discovery

discovery
Description Indicator Process Target
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Users\Admin\AppData\Local\Temp\391eb94842f32dbe0e91fefca980b51c83676f853ddd8c279d2868b6d9239ff7.exe N/A

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe N/A
Token: 33 N/A C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe N/A
Token: 33 N/A C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe N/A
Token: 33 N/A C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe N/A
Token: 33 N/A C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe N/A
Token: 33 N/A C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe N/A
Token: 33 N/A C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe N/A
Token: 33 N/A C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe N/A
Token: 33 N/A C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe N/A
Token: 33 N/A C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe N/A
Token: 33 N/A C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe N/A
Token: 33 N/A C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe N/A
Token: 33 N/A C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe N/A
Token: 33 N/A C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 2956 wrote to memory of 2236 N/A C:\Users\Admin\AppData\Local\Temp\391eb94842f32dbe0e91fefca980b51c83676f853ddd8c279d2868b6d9239ff7.exe C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe
PID 2956 wrote to memory of 2236 N/A C:\Users\Admin\AppData\Local\Temp\391eb94842f32dbe0e91fefca980b51c83676f853ddd8c279d2868b6d9239ff7.exe C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe
PID 2956 wrote to memory of 2236 N/A C:\Users\Admin\AppData\Local\Temp\391eb94842f32dbe0e91fefca980b51c83676f853ddd8c279d2868b6d9239ff7.exe C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe
PID 2956 wrote to memory of 2236 N/A C:\Users\Admin\AppData\Local\Temp\391eb94842f32dbe0e91fefca980b51c83676f853ddd8c279d2868b6d9239ff7.exe C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe
PID 2956 wrote to memory of 2236 N/A C:\Users\Admin\AppData\Local\Temp\391eb94842f32dbe0e91fefca980b51c83676f853ddd8c279d2868b6d9239ff7.exe C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe
PID 2956 wrote to memory of 2236 N/A C:\Users\Admin\AppData\Local\Temp\391eb94842f32dbe0e91fefca980b51c83676f853ddd8c279d2868b6d9239ff7.exe C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe
PID 2956 wrote to memory of 2236 N/A C:\Users\Admin\AppData\Local\Temp\391eb94842f32dbe0e91fefca980b51c83676f853ddd8c279d2868b6d9239ff7.exe C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe
PID 2956 wrote to memory of 2236 N/A C:\Users\Admin\AppData\Local\Temp\391eb94842f32dbe0e91fefca980b51c83676f853ddd8c279d2868b6d9239ff7.exe C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe
PID 2956 wrote to memory of 2236 N/A C:\Users\Admin\AppData\Local\Temp\391eb94842f32dbe0e91fefca980b51c83676f853ddd8c279d2868b6d9239ff7.exe C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe

Processes

C:\Users\Admin\AppData\Local\Temp\391eb94842f32dbe0e91fefca980b51c83676f853ddd8c279d2868b6d9239ff7.exe

"C:\Users\Admin\AppData\Local\Temp\391eb94842f32dbe0e91fefca980b51c83676f853ddd8c279d2868b6d9239ff7.exe"

C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe

"C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe"

Network

Country Destination Domain Proto
US 8.8.8.8:53 film.royalprop.trade udp

Files

memory/2956-0-0x0000000000400000-0x0000000000569000-memory.dmp

memory/2956-1-0x0000000000400000-0x0000000000569000-memory.dmp

memory/2956-2-0x0000000000400000-0x0000000000569000-memory.dmp

memory/2956-3-0x0000000000400000-0x0000000000569000-memory.dmp

memory/2956-9-0x0000000000160000-0x0000000000161000-memory.dmp

memory/2236-10-0x0000000000400000-0x000000000041A000-memory.dmp

memory/2236-18-0x0000000000400000-0x000000000041A000-memory.dmp

memory/2236-19-0x0000000000400000-0x000000000041A000-memory.dmp

memory/2236-16-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

memory/2236-12-0x0000000000400000-0x000000000041A000-memory.dmp

memory/2956-21-0x0000000000400000-0x0000000000569000-memory.dmp

memory/2236-22-0x0000000073C82000-0x0000000073C84000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-07-27 21:10

Reported

2024-07-27 22:23

Platform

win10v2004-20240709-en

Max time kernel

147s

Max time network

151s

Command Line

"C:\Users\Admin\AppData\Local\Temp\391eb94842f32dbe0e91fefca980b51c83676f853ddd8c279d2868b6d9239ff7.exe"

Signatures

njRAT/Bladabindi

trojan njrat

Drops startup file

Description Indicator Process Target
File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\sftp.url C:\Users\Admin\AppData\Local\Temp\391eb94842f32dbe0e91fefca980b51c83676f853ddd8c279d2868b6d9239ff7.exe N/A

AutoIT Executable

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

Suspicious use of SetThreadContext

Description Indicator Process Target
PID 2528 set thread context of 1728 N/A C:\Users\Admin\AppData\Local\Temp\391eb94842f32dbe0e91fefca980b51c83676f853ddd8c279d2868b6d9239ff7.exe C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe

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\391eb94842f32dbe0e91fefca980b51c83676f853ddd8c279d2868b6d9239ff7.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe N/A

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe N/A
Token: 33 N/A C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe N/A
Token: 33 N/A C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe N/A
Token: 33 N/A C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe N/A
Token: 33 N/A C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe N/A
Token: 33 N/A C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe N/A
Token: 33 N/A C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe N/A
Token: 33 N/A C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe N/A
Token: 33 N/A C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe N/A
Token: 33 N/A C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe N/A
Token: 33 N/A C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe N/A
Token: 33 N/A C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe N/A
Token: 33 N/A C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe N/A
Token: 33 N/A C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\391eb94842f32dbe0e91fefca980b51c83676f853ddd8c279d2868b6d9239ff7.exe

"C:\Users\Admin\AppData\Local\Temp\391eb94842f32dbe0e91fefca980b51c83676f853ddd8c279d2868b6d9239ff7.exe"

C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe

"C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe"

Network

Country Destination Domain Proto
US 8.8.8.8:53 58.55.71.13.in-addr.arpa udp
US 8.8.8.8:53 25.140.123.92.in-addr.arpa udp
US 8.8.8.8:53 68.32.126.40.in-addr.arpa udp
US 8.8.8.8:53 104.219.191.52.in-addr.arpa udp
US 8.8.8.8:53 88.156.103.20.in-addr.arpa udp
US 8.8.8.8:53 183.142.211.20.in-addr.arpa udp
US 8.8.8.8:53 183.59.114.20.in-addr.arpa udp
US 8.8.8.8:53 171.39.242.20.in-addr.arpa udp
US 8.8.8.8:53 192.142.123.92.in-addr.arpa udp
US 8.8.8.8:53 film.royalprop.trade udp
US 8.8.8.8:53 film.royalprop.trade udp
US 8.8.8.8:53 film.royalprop.trade udp
US 8.8.8.8:53 film.royalprop.trade udp
US 8.8.8.8:53 172.210.232.199.in-addr.arpa udp
US 8.8.8.8:53 film.royalprop.trade udp
US 8.8.8.8:53 26.35.223.20.in-addr.arpa udp
US 8.8.8.8:53 film.royalprop.trade udp
US 8.8.8.8:53 film.royalprop.trade udp
US 8.8.8.8:53 film.royalprop.trade udp
US 8.8.8.8:53 43.229.111.52.in-addr.arpa udp
US 8.8.8.8:53 film.royalprop.trade udp
US 8.8.8.8:53 film.royalprop.trade 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 10.27.171.150.in-addr.arpa udp
US 8.8.8.8:53 film.royalprop.trade udp
US 8.8.8.8:53 film.royalprop.trade udp
US 8.8.8.8:53 film.royalprop.trade udp
US 8.8.8.8:53 film.royalprop.trade udp
US 8.8.8.8:53 film.royalprop.trade udp
US 8.8.8.8:53 film.royalprop.trade udp
US 8.8.8.8:53 film.royalprop.trade udp

Files

memory/2528-0-0x0000000000400000-0x0000000000569000-memory.dmp

memory/2528-1-0x0000000000400000-0x0000000000569000-memory.dmp

memory/2528-2-0x0000000000400000-0x0000000000569000-memory.dmp

memory/2528-3-0x0000000000400000-0x0000000000569000-memory.dmp

memory/2528-4-0x0000000000400000-0x0000000000569000-memory.dmp

memory/1728-11-0x0000000000400000-0x000000000041A000-memory.dmp

memory/2528-15-0x0000000000B20000-0x0000000000B21000-memory.dmp

memory/2528-17-0x0000000000400000-0x0000000000569000-memory.dmp

memory/1728-18-0x0000000074BA2000-0x0000000074BA3000-memory.dmp

memory/1728-19-0x0000000074BA0000-0x0000000075151000-memory.dmp

memory/1728-20-0x0000000074BA0000-0x0000000075151000-memory.dmp

memory/1728-21-0x0000000074BA2000-0x0000000074BA3000-memory.dmp

memory/1728-22-0x0000000074BA0000-0x0000000075151000-memory.dmp

memory/1728-23-0x0000000074BA0000-0x0000000075151000-memory.dmp