Malware Analysis Report

2025-03-15 06:25

Sample ID 240126-tbz2wahbf2
Target 77c54c4cd49f985ece2f8d54139915ba
SHA256 26a006720aac70749a0c2f1cce2b2464800c6213c947b4d6fd1cdc967617b43a
Tags
njrat hacked trojan upx evasion persistence
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

26a006720aac70749a0c2f1cce2b2464800c6213c947b4d6fd1cdc967617b43a

Threat Level: Known bad

The file 77c54c4cd49f985ece2f8d54139915ba was found to be: Known bad.

Malicious Activity Summary

njrat hacked trojan upx evasion persistence

njRAT/Bladabindi

Modifies Windows Firewall

Loads dropped DLL

UPX packed file

Executes dropped EXE

Drops startup file

Checks computer location settings

Adds Run key to start application

Enumerates physical storage devices

Unsigned PE

Suspicious behavior: EnumeratesProcesses

Suspicious use of AdjustPrivilegeToken

Suspicious use of WriteProcessMemory

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-01-26 15:53

Signatures

UPX packed file

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

Unsigned PE

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

Analysis: behavioral2

Detonation Overview

Submitted

2024-01-26 15:53

Reported

2024-01-26 15:56

Platform

win10v2004-20231215-en

Max time kernel

92s

Max time network

123s

Command Line

"C:\Users\Admin\AppData\Local\Temp\77c54c4cd49f985ece2f8d54139915ba.exe"

Signatures

njRAT/Bladabindi

trojan njrat

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\test.exe N/A

Executes dropped EXE

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

UPX packed file

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

Enumerates physical storage devices

Processes

C:\Users\Admin\AppData\Local\Temp\77c54c4cd49f985ece2f8d54139915ba.exe

"C:\Users\Admin\AppData\Local\Temp\77c54c4cd49f985ece2f8d54139915ba.exe"

C:\Windows\SysWOW64\cmd.exe

C:\Windows\system32\cmd.exe /c test.exe

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

test.exe

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

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

Network

Country Destination Domain Proto
US 8.8.8.8:53 8.8.8.8.in-addr.arpa udp
US 8.8.8.8:53 149.220.183.52.in-addr.arpa udp
US 8.8.8.8:53 194.178.17.96.in-addr.arpa udp
US 8.8.8.8:53 67.31.126.40.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 209.205.72.20.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 18.134.221.88.in-addr.arpa udp
US 8.8.8.8:53 209.178.17.96.in-addr.arpa udp

Files

memory/4580-0-0x0000000000400000-0x0000000000498000-memory.dmp

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

MD5 fc42513e45503d510fb011bbb309e51e
SHA1 e9741466f6e68dadb9e874f12d5b62fe14693741
SHA256 766240fd9026a04e4a7f20240f699133eef24a969e242afdd471ad0a179cefe3
SHA512 0f2a88f96a8a47abe062ccca986d2b3d98310374629c9067b19dbfeb73f23ba411b3ca5ae3877684770fb2d25947305b42c38a913a329e6220de6cd5d539a8ca

memory/3568-5-0x0000000075370000-0x0000000075921000-memory.dmp

memory/3568-6-0x0000000075370000-0x0000000075921000-memory.dmp

memory/3568-7-0x0000000000E00000-0x0000000000E10000-memory.dmp

memory/3744-18-0x0000000075370000-0x0000000075921000-memory.dmp

memory/3744-19-0x0000000001330000-0x0000000001340000-memory.dmp

memory/3744-20-0x0000000075370000-0x0000000075921000-memory.dmp

memory/3744-21-0x0000000075370000-0x0000000075921000-memory.dmp

memory/3568-22-0x0000000075370000-0x0000000075921000-memory.dmp

memory/4580-23-0x0000000000400000-0x0000000000498000-memory.dmp

Analysis: behavioral1

Detonation Overview

Submitted

2024-01-26 15:53

Reported

2024-01-26 15:56

Platform

win7-20231215-en

Max time kernel

149s

Max time network

146s

Command Line

"C:\Users\Admin\AppData\Local\Temp\77c54c4cd49f985ece2f8d54139915ba.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\ed6e2bf930f6d35b3ac57c049d10ac2c.exe C:\Users\Admin\AppData\Local\Temp\Explorer.exe N/A
File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\ed6e2bf930f6d35b3ac57c049d10ac2c.exe C:\Users\Admin\AppData\Local\Temp\Explorer.exe N/A

Executes dropped EXE

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

Loads dropped DLL

Description Indicator Process Target
N/A N/A C:\Windows\SysWOW64\cmd.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\test.exe N/A

UPX packed file

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

Adds Run key to start application

persistence
Description Indicator Process Target
Set value (str) \REGISTRY\USER\S-1-5-21-3601492379-692465709-652514833-1000\Software\Microsoft\Windows\CurrentVersion\Run\ed6e2bf930f6d35b3ac57c049d10ac2c = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\Explorer.exe\" .." C:\Users\Admin\AppData\Local\Temp\Explorer.exe N/A
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\ed6e2bf930f6d35b3ac57c049d10ac2c = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\Explorer.exe\" .." C:\Users\Admin\AppData\Local\Temp\Explorer.exe N/A

Enumerates physical storage devices

Suspicious behavior: EnumeratesProcesses

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

Suspicious use of AdjustPrivilegeToken

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

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 2436 wrote to memory of 2460 N/A C:\Users\Admin\AppData\Local\Temp\77c54c4cd49f985ece2f8d54139915ba.exe C:\Windows\SysWOW64\cmd.exe
PID 2436 wrote to memory of 2460 N/A C:\Users\Admin\AppData\Local\Temp\77c54c4cd49f985ece2f8d54139915ba.exe C:\Windows\SysWOW64\cmd.exe
PID 2436 wrote to memory of 2460 N/A C:\Users\Admin\AppData\Local\Temp\77c54c4cd49f985ece2f8d54139915ba.exe C:\Windows\SysWOW64\cmd.exe
PID 2436 wrote to memory of 2460 N/A C:\Users\Admin\AppData\Local\Temp\77c54c4cd49f985ece2f8d54139915ba.exe C:\Windows\SysWOW64\cmd.exe
PID 2460 wrote to memory of 1216 N/A C:\Windows\SysWOW64\cmd.exe C:\Users\Admin\AppData\Local\Temp\test.exe
PID 2460 wrote to memory of 1216 N/A C:\Windows\SysWOW64\cmd.exe C:\Users\Admin\AppData\Local\Temp\test.exe
PID 2460 wrote to memory of 1216 N/A C:\Windows\SysWOW64\cmd.exe C:\Users\Admin\AppData\Local\Temp\test.exe
PID 2460 wrote to memory of 1216 N/A C:\Windows\SysWOW64\cmd.exe C:\Users\Admin\AppData\Local\Temp\test.exe
PID 1216 wrote to memory of 2996 N/A C:\Users\Admin\AppData\Local\Temp\test.exe C:\Users\Admin\AppData\Local\Temp\Explorer.exe
PID 1216 wrote to memory of 2996 N/A C:\Users\Admin\AppData\Local\Temp\test.exe C:\Users\Admin\AppData\Local\Temp\Explorer.exe
PID 1216 wrote to memory of 2996 N/A C:\Users\Admin\AppData\Local\Temp\test.exe C:\Users\Admin\AppData\Local\Temp\Explorer.exe
PID 1216 wrote to memory of 2996 N/A C:\Users\Admin\AppData\Local\Temp\test.exe C:\Users\Admin\AppData\Local\Temp\Explorer.exe
PID 2996 wrote to memory of 2760 N/A C:\Users\Admin\AppData\Local\Temp\Explorer.exe C:\Windows\SysWOW64\netsh.exe
PID 2996 wrote to memory of 2760 N/A C:\Users\Admin\AppData\Local\Temp\Explorer.exe C:\Windows\SysWOW64\netsh.exe
PID 2996 wrote to memory of 2760 N/A C:\Users\Admin\AppData\Local\Temp\Explorer.exe C:\Windows\SysWOW64\netsh.exe
PID 2996 wrote to memory of 2760 N/A C:\Users\Admin\AppData\Local\Temp\Explorer.exe C:\Windows\SysWOW64\netsh.exe

Processes

C:\Users\Admin\AppData\Local\Temp\77c54c4cd49f985ece2f8d54139915ba.exe

"C:\Users\Admin\AppData\Local\Temp\77c54c4cd49f985ece2f8d54139915ba.exe"

C:\Windows\SysWOW64\cmd.exe

C:\Windows\system32\cmd.exe /c test.exe

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

test.exe

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

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

C:\Windows\SysWOW64\netsh.exe

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

Network

Country Destination Domain Proto
US 8.8.8.8:53 abdo95.ddns.net udp

Files

memory/2436-0-0x0000000000400000-0x0000000000498000-memory.dmp

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

MD5 fc42513e45503d510fb011bbb309e51e
SHA1 e9741466f6e68dadb9e874f12d5b62fe14693741
SHA256 766240fd9026a04e4a7f20240f699133eef24a969e242afdd471ad0a179cefe3
SHA512 0f2a88f96a8a47abe062ccca986d2b3d98310374629c9067b19dbfeb73f23ba411b3ca5ae3877684770fb2d25947305b42c38a913a329e6220de6cd5d539a8ca

memory/1216-5-0x0000000074620000-0x0000000074BCB000-memory.dmp

memory/1216-6-0x00000000004A0000-0x00000000004E0000-memory.dmp

memory/1216-7-0x0000000074620000-0x0000000074BCB000-memory.dmp

memory/2996-16-0x0000000074620000-0x0000000074BCB000-memory.dmp

memory/1216-15-0x0000000074620000-0x0000000074BCB000-memory.dmp

memory/2436-18-0x0000000000400000-0x0000000000498000-memory.dmp

memory/2996-17-0x0000000000B90000-0x0000000000BD0000-memory.dmp

memory/2996-20-0x0000000074620000-0x0000000074BCB000-memory.dmp