Malware Analysis Report

2025-03-15 06:22

Sample ID 241005-rkmrsszana
Target bca1a5ae15dcd96a52275f594fc5dd6a9727414c7a1b0fc91b09aaa306ea2d57.zip
SHA256 b1fcd3eda30600436aeea23653892d86895c10901a8123ec088644a93669c52b
Tags
njrat hacked discovery 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 Overview

score
10/10

SHA256

b1fcd3eda30600436aeea23653892d86895c10901a8123ec088644a93669c52b

Threat Level: Known bad

The file bca1a5ae15dcd96a52275f594fc5dd6a9727414c7a1b0fc91b09aaa306ea2d57.zip was found to be: Known bad.

Malicious Activity Summary

njrat hacked discovery persistence trojan

njRAT/Bladabindi

Drops startup file

Adds Run key to start application

System Location Discovery: System Language Discovery

Unsigned PE

Suspicious behavior: GetForegroundWindowSpam

Suspicious use of AdjustPrivilegeToken

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-10-05 14:15

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-10-05 14:15

Reported

2024-10-05 14:17

Platform

win10-20240404-en

Max time kernel

119s

Max time network

106s

Command Line

"C:\Users\Admin\AppData\Local\Temp\bca1a5ae15dcd96a52275f594fc5dd6a9727414c7a1b0fc91b09aaa306ea2d57.exe"

Signatures

njRAT/Bladabindi

trojan njrat

Drops startup file

Description Indicator Process Target
File created C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Java update.exe C:\Users\Admin\AppData\Local\Temp\bca1a5ae15dcd96a52275f594fc5dd6a9727414c7a1b0fc91b09aaa306ea2d57.exe N/A
File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Java update.exe C:\Users\Admin\AppData\Local\Temp\bca1a5ae15dcd96a52275f594fc5dd6a9727414c7a1b0fc91b09aaa306ea2d57.exe N/A

Adds Run key to start application

persistence
Description Indicator Process Target
Set value (str) \REGISTRY\USER\S-1-5-21-160447019-1232603106-4168707212-1000\Software\Microsoft\Windows\CurrentVersion\Run\Windows Update = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\bca1a5ae15dcd96a52275f594fc5dd6a9727414c7a1b0fc91b09aaa306ea2d57.exe\" .." C:\Users\Admin\AppData\Local\Temp\bca1a5ae15dcd96a52275f594fc5dd6a9727414c7a1b0fc91b09aaa306ea2d57.exe N/A
Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\Windows Update = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\bca1a5ae15dcd96a52275f594fc5dd6a9727414c7a1b0fc91b09aaa306ea2d57.exe\" .." C:\Users\Admin\AppData\Local\Temp\bca1a5ae15dcd96a52275f594fc5dd6a9727414c7a1b0fc91b09aaa306ea2d57.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\bca1a5ae15dcd96a52275f594fc5dd6a9727414c7a1b0fc91b09aaa306ea2d57.exe N/A

Suspicious behavior: GetForegroundWindowSpam

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\bca1a5ae15dcd96a52275f594fc5dd6a9727414c7a1b0fc91b09aaa306ea2d57.exe N/A

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Local\Temp\bca1a5ae15dcd96a52275f594fc5dd6a9727414c7a1b0fc91b09aaa306ea2d57.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\bca1a5ae15dcd96a52275f594fc5dd6a9727414c7a1b0fc91b09aaa306ea2d57.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\bca1a5ae15dcd96a52275f594fc5dd6a9727414c7a1b0fc91b09aaa306ea2d57.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\bca1a5ae15dcd96a52275f594fc5dd6a9727414c7a1b0fc91b09aaa306ea2d57.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\bca1a5ae15dcd96a52275f594fc5dd6a9727414c7a1b0fc91b09aaa306ea2d57.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\bca1a5ae15dcd96a52275f594fc5dd6a9727414c7a1b0fc91b09aaa306ea2d57.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\bca1a5ae15dcd96a52275f594fc5dd6a9727414c7a1b0fc91b09aaa306ea2d57.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\bca1a5ae15dcd96a52275f594fc5dd6a9727414c7a1b0fc91b09aaa306ea2d57.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\bca1a5ae15dcd96a52275f594fc5dd6a9727414c7a1b0fc91b09aaa306ea2d57.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\bca1a5ae15dcd96a52275f594fc5dd6a9727414c7a1b0fc91b09aaa306ea2d57.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\bca1a5ae15dcd96a52275f594fc5dd6a9727414c7a1b0fc91b09aaa306ea2d57.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\bca1a5ae15dcd96a52275f594fc5dd6a9727414c7a1b0fc91b09aaa306ea2d57.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\bca1a5ae15dcd96a52275f594fc5dd6a9727414c7a1b0fc91b09aaa306ea2d57.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\bca1a5ae15dcd96a52275f594fc5dd6a9727414c7a1b0fc91b09aaa306ea2d57.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\bca1a5ae15dcd96a52275f594fc5dd6a9727414c7a1b0fc91b09aaa306ea2d57.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\bca1a5ae15dcd96a52275f594fc5dd6a9727414c7a1b0fc91b09aaa306ea2d57.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\bca1a5ae15dcd96a52275f594fc5dd6a9727414c7a1b0fc91b09aaa306ea2d57.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\bca1a5ae15dcd96a52275f594fc5dd6a9727414c7a1b0fc91b09aaa306ea2d57.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\bca1a5ae15dcd96a52275f594fc5dd6a9727414c7a1b0fc91b09aaa306ea2d57.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\bca1a5ae15dcd96a52275f594fc5dd6a9727414c7a1b0fc91b09aaa306ea2d57.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\bca1a5ae15dcd96a52275f594fc5dd6a9727414c7a1b0fc91b09aaa306ea2d57.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\bca1a5ae15dcd96a52275f594fc5dd6a9727414c7a1b0fc91b09aaa306ea2d57.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\bca1a5ae15dcd96a52275f594fc5dd6a9727414c7a1b0fc91b09aaa306ea2d57.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\bca1a5ae15dcd96a52275f594fc5dd6a9727414c7a1b0fc91b09aaa306ea2d57.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\bca1a5ae15dcd96a52275f594fc5dd6a9727414c7a1b0fc91b09aaa306ea2d57.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\bca1a5ae15dcd96a52275f594fc5dd6a9727414c7a1b0fc91b09aaa306ea2d57.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\bca1a5ae15dcd96a52275f594fc5dd6a9727414c7a1b0fc91b09aaa306ea2d57.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\bca1a5ae15dcd96a52275f594fc5dd6a9727414c7a1b0fc91b09aaa306ea2d57.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\bca1a5ae15dcd96a52275f594fc5dd6a9727414c7a1b0fc91b09aaa306ea2d57.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\bca1a5ae15dcd96a52275f594fc5dd6a9727414c7a1b0fc91b09aaa306ea2d57.exe

"C:\Users\Admin\AppData\Local\Temp\bca1a5ae15dcd96a52275f594fc5dd6a9727414c7a1b0fc91b09aaa306ea2d57.exe"

Network

Country Destination Domain Proto
NL 52.142.223.178:80 tcp
US 8.8.8.8:53 encrypted7745.hopto.org udp
PS 85.113.101.120:1177 encrypted7745.hopto.org tcp
US 8.8.8.8:53 120.101.113.85.in-addr.arpa udp
US 8.8.8.8:53 167.205.23.2.in-addr.arpa udp
US 8.8.8.8:53 13.227.111.52.in-addr.arpa udp

Files

memory/3796-0-0x000000007407E000-0x000000007407F000-memory.dmp

memory/3796-1-0x0000000000BA0000-0x0000000000BCE000-memory.dmp

memory/3796-2-0x00000000053C0000-0x000000000545C000-memory.dmp

memory/3796-3-0x0000000001530000-0x0000000001542000-memory.dmp

memory/3796-4-0x0000000005CD0000-0x00000000061CE000-memory.dmp

memory/3796-5-0x0000000074070000-0x000000007475E000-memory.dmp

memory/3796-6-0x0000000005870000-0x0000000005902000-memory.dmp

memory/3796-8-0x00000000057E0000-0x00000000057EA000-memory.dmp

memory/3796-9-0x0000000005A40000-0x0000000005AA6000-memory.dmp

memory/3796-10-0x00000000068A0000-0x00000000068B8000-memory.dmp

memory/3796-11-0x000000007407E000-0x000000007407F000-memory.dmp

memory/3796-12-0x0000000074070000-0x000000007475E000-memory.dmp