Malware Analysis Report

2025-03-15 06:27

Sample ID 240120-zrv1raghe8
Target 9DF2B193396F5BE4C1636B0619362EC6.exe
SHA256 bc77b4592acc8dc3708179fd8719405271052addb074c04db57f0f1699e77708
Tags
hacked njrat 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

bc77b4592acc8dc3708179fd8719405271052addb074c04db57f0f1699e77708

Threat Level: Known bad

The file 9DF2B193396F5BE4C1636B0619362EC6.exe was found to be: Known bad.

Malicious Activity Summary

hacked njrat evasion persistence trojan

Njrat family

njRAT/Bladabindi

Modifies Windows Firewall

Checks computer location settings

Drops startup file

Executes dropped EXE

Loads dropped DLL

Adds Run key to start application

Enumerates physical storage devices

Unsigned PE

Suspicious use of AdjustPrivilegeToken

Suspicious use of WriteProcessMemory

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-01-20 20:57

Signatures

Njrat family

njrat

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-01-20 20:57

Reported

2024-01-20 21:00

Platform

win7-20231129-en

Max time kernel

149s

Max time network

148s

Command Line

"C:\Users\Admin\AppData\Local\Temp\9DF2B193396F5BE4C1636B0619362EC6.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\5a1dceb696560575497ef5faf4d00de1.exe C:\Users\Admin\AppData\Local\Temp\tst.exe N/A
File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\5a1dceb696560575497ef5faf4d00de1.exe C:\Users\Admin\AppData\Local\Temp\tst.exe N/A

Executes dropped EXE

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

Loads dropped DLL

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\9DF2B193396F5BE4C1636B0619362EC6.exe N/A

Adds Run key to start application

persistence
Description Indicator Process Target
Set value (str) \REGISTRY\USER\S-1-5-21-3470981204-343661084-3367201002-1000\Software\Microsoft\Windows\CurrentVersion\Run\5a1dceb696560575497ef5faf4d00de1 = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\tst.exe\" .." C:\Users\Admin\AppData\Local\Temp\tst.exe N/A
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\5a1dceb696560575497ef5faf4d00de1 = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\tst.exe\" .." C:\Users\Admin\AppData\Local\Temp\tst.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\tst.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\tst.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\tst.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\tst.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\tst.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\tst.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\tst.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\tst.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\tst.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\tst.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\tst.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\tst.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\tst.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\tst.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\tst.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\tst.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\tst.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\tst.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\tst.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\tst.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\tst.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\tst.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\tst.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\tst.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\tst.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\tst.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\tst.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\tst.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\tst.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\tst.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\tst.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\tst.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\tst.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\tst.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\tst.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\9DF2B193396F5BE4C1636B0619362EC6.exe

"C:\Users\Admin\AppData\Local\Temp\9DF2B193396F5BE4C1636B0619362EC6.exe"

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

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

C:\Windows\SysWOW64\netsh.exe

netsh firewall add allowedprogram "C:\Users\Admin\AppData\Local\Temp\tst.exe" "tst.exe" ENABLE

Network

Country Destination Domain Proto
US 8.8.8.8:53 fallenvrsdo7ne.ddns.net udp
BR 191.242.28.210:1177 fallenvrsdo7ne.ddns.net tcp

Files

memory/2384-0-0x0000000074430000-0x00000000749DB000-memory.dmp

memory/2384-1-0x0000000074430000-0x00000000749DB000-memory.dmp

memory/2384-2-0x00000000002E0000-0x0000000000320000-memory.dmp

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

MD5 9df2b193396f5be4c1636b0619362ec6
SHA1 91803a123fa7ceb1359c797a98632208bc4597d9
SHA256 bc77b4592acc8dc3708179fd8719405271052addb074c04db57f0f1699e77708
SHA512 bf81c77d2c5528a835721d3d70dabf030a37573dc8c5a1b4cb9a1b714bd66fde4e279881f8783d765c60d6cc279406d0ab7af9028974f2a750088e01bafdd578

memory/2384-11-0x0000000074430000-0x00000000749DB000-memory.dmp

memory/2544-12-0x0000000001E60000-0x0000000001EA0000-memory.dmp

memory/2544-10-0x0000000074430000-0x00000000749DB000-memory.dmp

memory/2544-13-0x0000000074430000-0x00000000749DB000-memory.dmp

memory/2544-15-0x0000000074430000-0x00000000749DB000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-01-20 20:57

Reported

2024-01-20 21:00

Platform

win10v2004-20231222-en

Max time kernel

149s

Max time network

149s

Command Line

"C:\Users\Admin\AppData\Local\Temp\9DF2B193396F5BE4C1636B0619362EC6.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-1-5-21-1168293393-3419776239-306423207-1000\Control Panel\International\Geo\Nation C:\Users\Admin\AppData\Local\Temp\9DF2B193396F5BE4C1636B0619362EC6.exe N/A

Drops startup file

Description Indicator Process Target
File created C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\5a1dceb696560575497ef5faf4d00de1.exe C:\Users\Admin\AppData\Local\Temp\tst.exe N/A
File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\5a1dceb696560575497ef5faf4d00de1.exe C:\Users\Admin\AppData\Local\Temp\tst.exe N/A

Executes dropped EXE

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

Adds Run key to start application

persistence
Description Indicator Process Target
Set value (str) \REGISTRY\USER\S-1-5-21-1168293393-3419776239-306423207-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\5a1dceb696560575497ef5faf4d00de1 = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\tst.exe\" .." C:\Users\Admin\AppData\Local\Temp\tst.exe N/A
Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\5a1dceb696560575497ef5faf4d00de1 = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\tst.exe\" .." C:\Users\Admin\AppData\Local\Temp\tst.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\tst.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\tst.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\tst.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\tst.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\tst.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\tst.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\tst.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\tst.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\tst.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\tst.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\tst.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\tst.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\tst.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\tst.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\tst.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\tst.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\tst.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\tst.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\tst.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\tst.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\tst.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\tst.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\tst.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\tst.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\tst.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\tst.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\tst.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\tst.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\tst.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\tst.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\tst.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\tst.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\tst.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\tst.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\tst.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\9DF2B193396F5BE4C1636B0619362EC6.exe

"C:\Users\Admin\AppData\Local\Temp\9DF2B193396F5BE4C1636B0619362EC6.exe"

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

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

C:\Windows\SysWOW64\netsh.exe

netsh firewall add allowedprogram "C:\Users\Admin\AppData\Local\Temp\tst.exe" "tst.exe" ENABLE

Network

Country Destination Domain Proto
US 8.8.8.8:53 74.32.126.40.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 228.249.119.40.in-addr.arpa udp
US 8.8.8.8:53 241.154.82.20.in-addr.arpa udp
US 8.8.8.8:53 178.178.17.96.in-addr.arpa udp
US 8.8.8.8:53 41.110.16.96.in-addr.arpa udp
US 8.8.8.8:53 9.228.82.20.in-addr.arpa udp
US 8.8.8.8:53 fallenvrsdo7ne.ddns.net udp
BR 191.242.28.210:1177 fallenvrsdo7ne.ddns.net tcp
US 8.8.8.8:53 210.28.242.191.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 8.8.8.8:53 140.71.91.104.in-addr.arpa udp
US 8.8.8.8:53 0.204.248.87.in-addr.arpa udp
US 8.8.8.8:53 43.229.111.52.in-addr.arpa udp
US 8.8.8.8:53 tse1.mm.bing.net udp
US 204.79.197.200:443 tse1.mm.bing.net tcp
US 204.79.197.200:443 tse1.mm.bing.net tcp
US 204.79.197.200:443 tse1.mm.bing.net tcp
US 204.79.197.200:443 tse1.mm.bing.net tcp
US 204.79.197.200:443 tse1.mm.bing.net tcp

Files

memory/844-2-0x00000000013D0000-0x00000000013E0000-memory.dmp

memory/844-1-0x00000000753E0000-0x0000000075991000-memory.dmp

memory/844-0-0x00000000753E0000-0x0000000075991000-memory.dmp

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

MD5 9df2b193396f5be4c1636b0619362ec6
SHA1 91803a123fa7ceb1359c797a98632208bc4597d9
SHA256 bc77b4592acc8dc3708179fd8719405271052addb074c04db57f0f1699e77708
SHA512 bf81c77d2c5528a835721d3d70dabf030a37573dc8c5a1b4cb9a1b714bd66fde4e279881f8783d765c60d6cc279406d0ab7af9028974f2a750088e01bafdd578

memory/2644-13-0x00000000753E0000-0x0000000075991000-memory.dmp

memory/844-12-0x00000000753E0000-0x0000000075991000-memory.dmp

memory/2644-15-0x0000000000FD0000-0x0000000000FE0000-memory.dmp

memory/2644-14-0x00000000753E0000-0x0000000075991000-memory.dmp

memory/2644-17-0x00000000753E0000-0x0000000075991000-memory.dmp

memory/2644-18-0x0000000000FD0000-0x0000000000FE0000-memory.dmp