Malware Analysis Report

2025-08-05 15:31

Sample ID 240203-epjjqaggc2
Target 8b5a798a5aefc7817f4ad1412e69a6ce
SHA256 36bcbc6f042482039ffd4e6f5c4c83ce5b86394da2506670b86d3d7525f79549
Tags
0909909 njrat 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

36bcbc6f042482039ffd4e6f5c4c83ce5b86394da2506670b86d3d7525f79549

Threat Level: Known bad

The file 8b5a798a5aefc7817f4ad1412e69a6ce was found to be: Known bad.

Malicious Activity Summary

0909909 njrat persistence trojan

Njrat family

njRAT/Bladabindi

Executes dropped EXE

Checks computer location settings

Loads dropped DLL

Drops startup file

Adds Run key to start application

Enumerates physical storage devices

Unsigned PE

Suspicious use of WriteProcessMemory

Suspicious use of AdjustPrivilegeToken

Views/modifies file attributes

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-02-03 04:06

Signatures

Njrat family

njrat

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-02-03 04:06

Reported

2024-02-03 04:09

Platform

win7-20231215-en

Max time kernel

149s

Max time network

152s

Command Line

"C:\Users\Admin\AppData\Local\Temp\8b5a798a5aefc7817f4ad1412e69a6ce.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\Windows.lnk C:\Users\Admin\AppData\Local\Temp\8b5a798a5aefc7817f4ad1412e69a6ce.exe N/A
File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Windows.lnk C:\Users\Admin\AppData\Local\Temp\Payload.exe N/A
File created C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Windows.exe C:\Users\Admin\AppData\Local\Temp\Payload.exe N/A
File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Windows.exe C:\Users\Admin\AppData\Local\Temp\Payload.exe N/A

Executes dropped EXE

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

Loads dropped DLL

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\8b5a798a5aefc7817f4ad1412e69a6ce.exe N/A

Adds Run key to start application

persistence
Description Indicator Process Target
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\Windows = "C:\\Users\\Admin\\AppData\\Roaming\\Microsoft\\Windows\\Templates\\Windows.URL" C:\Users\Admin\AppData\Local\Temp\Payload.exe N/A
Set value (str) \REGISTRY\USER\S-1-5-21-3427588347-1492276948-3422228430-1000\Software\Microsoft\Windows\CurrentVersion\Run\Windows2 = "C:\\Users\\Admin\\AppData\\Local\\Temp\\Payload.exe" C:\Users\Admin\AppData\Local\Temp\8b5a798a5aefc7817f4ad1412e69a6ce.exe N/A
Set value (str) \REGISTRY\USER\S-1-5-21-3427588347-1492276948-3422228430-1000\Software\Microsoft\Windows\CurrentVersion\Run\Windows2 = "C:\\Users\\Admin\\AppData\\Roaming\\Microsoft\\Windows\\Templates\\Windows.URL" C:\Users\Admin\AppData\Local\Temp\Payload.exe N/A
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\Windows2 = "C:\\Users\\Admin\\AppData\\Roaming\\Microsoft\\Windows\\Templates\\Windows.URL" C:\Users\Admin\AppData\Local\Temp\Payload.exe N/A
Set value (str) \REGISTRY\USER\S-1-5-21-3427588347-1492276948-3422228430-1000\Software\Microsoft\Windows\CurrentVersion\Run\Windows = "C:\\Users\\Admin\\AppData\\Roaming\\Microsoft\\Windows\\Templates\\Windows.URL" C:\Users\Admin\AppData\Local\Temp\Payload.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\Payload.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\Payload.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\Payload.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\Payload.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\Payload.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\Payload.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\Payload.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\Payload.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\Payload.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\Payload.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\Payload.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\Payload.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\Payload.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\Payload.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\Payload.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\Payload.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\Payload.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\Payload.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\Payload.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\Payload.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\Payload.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\Payload.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\Payload.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\Payload.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\Payload.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\Payload.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\Payload.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\Payload.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\Payload.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\Payload.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\Payload.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\Payload.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\Payload.exe N/A

Views/modifies file attributes

evasion
Description Indicator Process Target
N/A N/A C:\Windows\SysWOW64\attrib.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\8b5a798a5aefc7817f4ad1412e69a6ce.exe

"C:\Users\Admin\AppData\Local\Temp\8b5a798a5aefc7817f4ad1412e69a6ce.exe"

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

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

C:\Windows\SysWOW64\attrib.exe

attrib +h +r +s "C:\Users\Admin\AppData\Local\Temp\Payload.exe"

Network

Country Destination Domain Proto
US 174.67.28.4:6786 tcp
US 174.67.28.4:6786 tcp
US 174.67.28.4:6786 tcp
US 174.67.28.4:6786 tcp
US 174.67.28.4:6786 tcp
US 174.67.28.4:6786 tcp

Files

memory/2280-0-0x0000000074360000-0x000000007490B000-memory.dmp

memory/2280-1-0x0000000074360000-0x000000007490B000-memory.dmp

memory/2280-2-0x0000000002010000-0x0000000002050000-memory.dmp

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

MD5 8b5a798a5aefc7817f4ad1412e69a6ce
SHA1 cef0d699332025e8da7fe747eb69346be932cb9d
SHA256 36bcbc6f042482039ffd4e6f5c4c83ce5b86394da2506670b86d3d7525f79549
SHA512 0af6f31e22c82890d5e81424fa2ff7a47d2c98e43d5d3ba4541c045920a536158cdc080f32194ccfb84d1e802be3e5192e5d0bdeb89740fcadca33bf08fefafd

memory/2280-12-0x0000000074360000-0x000000007490B000-memory.dmp

memory/2776-13-0x0000000000340000-0x0000000000380000-memory.dmp

memory/2776-14-0x0000000074360000-0x000000007490B000-memory.dmp

memory/2776-19-0x0000000074360000-0x000000007490B000-memory.dmp

C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Templates\Windows.lnk

MD5 92f19613c496364ce789460ab170df13
SHA1 928eee23d3385c60f6b767b6e489f591c0231599
SHA256 dc6f5e77fdab54bbc9ecf447282977fa0ac7bfc9c49aeb8f1125b3ce94353515
SHA512 d3089580132c248f2ebcb1474da5a9777fb1919f63c0f1d59d502ff1287fb3f8430abf831bb0074c6a05a6ff3b918c9c75ab6a93b3ef9e8c440c84ac413c0ebf

C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Windows.lnk

MD5 2a5cb068b79e07db9f89c97868325267
SHA1 a19e71347f4763e408cad2bb15430956045cf002
SHA256 7c17c22002894349eb618786aae5f72b3bc168d5e9e48b4de6efe98ab05bc6db
SHA512 8a235c4c397f4d4864834392a808260ad643d213b0cced98675ef56e3ed169bcb7cefc2a46ff743fa5443ddf006f2864627baf273dfbe0b5abf996352e7d4961

memory/2776-21-0x0000000000340000-0x0000000000380000-memory.dmp

memory/2776-22-0x0000000074360000-0x000000007490B000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-02-03 04:06

Reported

2024-02-03 04:09

Platform

win10v2004-20231215-en

Max time kernel

152s

Max time network

158s

Command Line

"C:\Users\Admin\AppData\Local\Temp\8b5a798a5aefc7817f4ad1412e69a6ce.exe"

Signatures

Checks computer location settings

Description Indicator Process Target
Key value queried \REGISTRY\USER\S-1-5-21-3073191680-435865314-2862784915-1000\Control Panel\International\Geo\Nation C:\Users\Admin\AppData\Local\Temp\8b5a798a5aefc7817f4ad1412e69a6ce.exe N/A

Drops startup file

Description Indicator Process Target
File created C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Windows.exe C:\Users\Admin\AppData\Local\Temp\Payload.exe N/A
File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Windows.exe C:\Users\Admin\AppData\Local\Temp\Payload.exe N/A
File created C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Windows.lnk C:\Users\Admin\AppData\Local\Temp\8b5a798a5aefc7817f4ad1412e69a6ce.exe N/A
File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Windows.lnk C:\Users\Admin\AppData\Local\Temp\Payload.exe N/A

Executes dropped EXE

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

Adds Run key to start application

persistence
Description Indicator Process Target
Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\Windows = "C:\\Users\\Admin\\AppData\\Roaming\\Microsoft\\Windows\\Templates\\Windows.URL" C:\Users\Admin\AppData\Local\Temp\Payload.exe N/A
Set value (str) \REGISTRY\USER\S-1-5-21-3073191680-435865314-2862784915-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Windows2 = "C:\\Users\\Admin\\AppData\\Local\\Temp\\Payload.exe" C:\Users\Admin\AppData\Local\Temp\8b5a798a5aefc7817f4ad1412e69a6ce.exe N/A
Set value (str) \REGISTRY\USER\S-1-5-21-3073191680-435865314-2862784915-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Windows2 = "C:\\Users\\Admin\\AppData\\Roaming\\Microsoft\\Windows\\Templates\\Windows.URL" C:\Users\Admin\AppData\Local\Temp\Payload.exe N/A
Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\Windows2 = "C:\\Users\\Admin\\AppData\\Roaming\\Microsoft\\Windows\\Templates\\Windows.URL" C:\Users\Admin\AppData\Local\Temp\Payload.exe N/A
Set value (str) \REGISTRY\USER\S-1-5-21-3073191680-435865314-2862784915-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Windows = "C:\\Users\\Admin\\AppData\\Roaming\\Microsoft\\Windows\\Templates\\Windows.URL" C:\Users\Admin\AppData\Local\Temp\Payload.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\Payload.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\Payload.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\Payload.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\Payload.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\Payload.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\Payload.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\Payload.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\Payload.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\Payload.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\Payload.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\Payload.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\Payload.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\Payload.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\Payload.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\Payload.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\Payload.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\Payload.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\Payload.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\Payload.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\Payload.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\Payload.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\Payload.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\Payload.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\Payload.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\Payload.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\Payload.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\Payload.exe N/A

Views/modifies file attributes

evasion
Description Indicator Process Target
N/A N/A C:\Windows\SysWOW64\attrib.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\8b5a798a5aefc7817f4ad1412e69a6ce.exe

"C:\Users\Admin\AppData\Local\Temp\8b5a798a5aefc7817f4ad1412e69a6ce.exe"

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

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

C:\Windows\SysWOW64\attrib.exe

attrib +h +r +s "C:\Users\Admin\AppData\Local\Temp\Payload.exe"

Network

Country Destination Domain Proto
US 8.8.8.8:53 97.17.167.52.in-addr.arpa udp
US 8.8.8.8:53 194.178.17.96.in-addr.arpa udp
US 8.8.8.8:53 136.32.126.40.in-addr.arpa udp
US 8.8.8.8:53 241.150.49.20.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 86.23.85.13.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
US 8.8.8.8:53 209.205.72.20.in-addr.arpa udp
US 174.67.28.4:6786 tcp
US 174.67.28.4:6786 tcp
US 8.8.8.8:53 180.178.17.96.in-addr.arpa udp
US 174.67.28.4:6786 tcp
US 174.67.28.4:6786 tcp
US 174.67.28.4:6786 tcp

Files

memory/740-0-0x0000000074C80000-0x0000000075231000-memory.dmp

memory/740-2-0x00000000018D0000-0x00000000018E0000-memory.dmp

memory/740-1-0x0000000074C80000-0x0000000075231000-memory.dmp

memory/740-5-0x0000000074C80000-0x0000000075231000-memory.dmp

memory/740-7-0x00000000018D0000-0x00000000018E0000-memory.dmp

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

MD5 8b5a798a5aefc7817f4ad1412e69a6ce
SHA1 cef0d699332025e8da7fe747eb69346be932cb9d
SHA256 36bcbc6f042482039ffd4e6f5c4c83ce5b86394da2506670b86d3d7525f79549
SHA512 0af6f31e22c82890d5e81424fa2ff7a47d2c98e43d5d3ba4541c045920a536158cdc080f32194ccfb84d1e802be3e5192e5d0bdeb89740fcadca33bf08fefafd

memory/3252-15-0x0000000074C80000-0x0000000075231000-memory.dmp

memory/3252-16-0x0000000000C70000-0x0000000000C80000-memory.dmp

C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Windows.lnk

MD5 371e9f5c5222743275e228f1b3d27fb1
SHA1 31b0a7ada0ee8c593d1f7d4b8fa3f830566a5fd6
SHA256 5684b6a81a92bef5cd5eb049a0e905dc99e7db95d907443f182614b9b48602f1
SHA512 14f203f243e9c69a3b3e1beaf8599d5cd0f18627e446a3beac78cb611bb4259ffb4c47ece4da3d3ff4ee1dd01aa379b081a3548844070d3b7312f56d22ffc78f

C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Templates\Windows.lnk

MD5 a0e21c3cda955b529c05da3ebc737559
SHA1 7cede9bd6a34b2ddb326c3733057cf76b11e3d45
SHA256 b34c6f792079e84046ce8c2049f6f233e6c235f025770a028dfc8d57bc54af8c
SHA512 e37365ed423d523ca996460ab7adab0a19923906413d22cccde2f1ce144ea25deef5e1a2a6d3cc8580952ebd58438f36f5eb2cb82348e1e3d126fa248d5fc18a

memory/740-22-0x0000000074C80000-0x0000000075231000-memory.dmp

memory/3252-24-0x0000000074C80000-0x0000000075231000-memory.dmp

memory/3252-25-0x0000000000C70000-0x0000000000C80000-memory.dmp