Malware Analysis Report

2025-01-22 14:01

Sample ID 240226-1jxeaagg27
Target 021b477ace5e87113272fd8b16830051.exe
SHA256 e31f4f05884e97c569d6641257f40c4634004565874178c122817538e89948bd
Tags
njrat hacked evasion persistence trojan
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

e31f4f05884e97c569d6641257f40c4634004565874178c122817538e89948bd

Threat Level: Known bad

The file 021b477ace5e87113272fd8b16830051.exe was found to be: Known bad.

Malicious Activity Summary

njrat hacked evasion persistence trojan

njRAT/Bladabindi

Modifies Windows Firewall

Checks computer location settings

Executes dropped EXE

Adds Run key to start application

Suspicious use of SetThreadContext

Unsigned PE

Enumerates physical storage devices

Suspicious use of AdjustPrivilegeToken

Suspicious use of WriteProcessMemory

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-02-26 21:41

Signatures

Unsigned PE

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

Analysis: behavioral2

Detonation Overview

Submitted

2024-02-26 21:41

Reported

2024-02-26 21:43

Platform

win10v2004-20240226-en

Max time kernel

150s

Max time network

151s

Command Line

"C:\Users\Admin\AppData\Local\Temp\021b477ace5e87113272fd8b16830051.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-1-5-21-3045580317-3728985860-206385570-1000\Control Panel\International\Geo\Nation C:\Users\Admin\AppData\Local\Temp\021b477ace5e87113272fd8b16830051.exe N/A

Executes dropped EXE

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

Adds Run key to start application

persistence
Description Indicator Process Target
Set value (str) \REGISTRY\USER\S-1-5-21-3045580317-3728985860-206385570-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\4ac5522ba6619835b9ac056e603570c4 = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\server.exe\" .." C:\Users\Admin\AppData\Local\Temp\server.exe N/A
Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\4ac5522ba6619835b9ac056e603570c4 = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\server.exe\" .." C:\Users\Admin\AppData\Local\Temp\server.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\021b477ace5e87113272fd8b16830051.exe N/A
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Local\Temp\server.exe N/A
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Local\Temp\server.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\server.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\server.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\server.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\server.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\server.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\server.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\server.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\server.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\server.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\server.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\server.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\server.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\server.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\server.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\server.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\server.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\server.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\server.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\server.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\server.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\server.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\server.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\server.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\server.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\server.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\server.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\server.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\server.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\server.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\server.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\server.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\server.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 4456 wrote to memory of 4612 N/A C:\Users\Admin\AppData\Local\Temp\021b477ace5e87113272fd8b16830051.exe C:\Users\Admin\AppData\Local\Temp\021b477ace5e87113272fd8b16830051.exe
PID 4456 wrote to memory of 4612 N/A C:\Users\Admin\AppData\Local\Temp\021b477ace5e87113272fd8b16830051.exe C:\Users\Admin\AppData\Local\Temp\021b477ace5e87113272fd8b16830051.exe
PID 4456 wrote to memory of 4612 N/A C:\Users\Admin\AppData\Local\Temp\021b477ace5e87113272fd8b16830051.exe C:\Users\Admin\AppData\Local\Temp\021b477ace5e87113272fd8b16830051.exe
PID 4456 wrote to memory of 4612 N/A C:\Users\Admin\AppData\Local\Temp\021b477ace5e87113272fd8b16830051.exe C:\Users\Admin\AppData\Local\Temp\021b477ace5e87113272fd8b16830051.exe
PID 4456 wrote to memory of 4612 N/A C:\Users\Admin\AppData\Local\Temp\021b477ace5e87113272fd8b16830051.exe C:\Users\Admin\AppData\Local\Temp\021b477ace5e87113272fd8b16830051.exe
PID 4456 wrote to memory of 4612 N/A C:\Users\Admin\AppData\Local\Temp\021b477ace5e87113272fd8b16830051.exe C:\Users\Admin\AppData\Local\Temp\021b477ace5e87113272fd8b16830051.exe
PID 4456 wrote to memory of 4612 N/A C:\Users\Admin\AppData\Local\Temp\021b477ace5e87113272fd8b16830051.exe C:\Users\Admin\AppData\Local\Temp\021b477ace5e87113272fd8b16830051.exe
PID 4456 wrote to memory of 4612 N/A C:\Users\Admin\AppData\Local\Temp\021b477ace5e87113272fd8b16830051.exe C:\Users\Admin\AppData\Local\Temp\021b477ace5e87113272fd8b16830051.exe
PID 4612 wrote to memory of 1036 N/A C:\Users\Admin\AppData\Local\Temp\021b477ace5e87113272fd8b16830051.exe C:\Users\Admin\AppData\Local\Temp\server.exe
PID 4612 wrote to memory of 1036 N/A C:\Users\Admin\AppData\Local\Temp\021b477ace5e87113272fd8b16830051.exe C:\Users\Admin\AppData\Local\Temp\server.exe
PID 4612 wrote to memory of 1036 N/A C:\Users\Admin\AppData\Local\Temp\021b477ace5e87113272fd8b16830051.exe C:\Users\Admin\AppData\Local\Temp\server.exe
PID 1036 wrote to memory of 1252 N/A C:\Users\Admin\AppData\Local\Temp\server.exe C:\Users\Admin\AppData\Local\Temp\server.exe
PID 1036 wrote to memory of 1252 N/A C:\Users\Admin\AppData\Local\Temp\server.exe C:\Users\Admin\AppData\Local\Temp\server.exe
PID 1036 wrote to memory of 1252 N/A C:\Users\Admin\AppData\Local\Temp\server.exe C:\Users\Admin\AppData\Local\Temp\server.exe
PID 1036 wrote to memory of 1252 N/A C:\Users\Admin\AppData\Local\Temp\server.exe C:\Users\Admin\AppData\Local\Temp\server.exe
PID 1036 wrote to memory of 1252 N/A C:\Users\Admin\AppData\Local\Temp\server.exe C:\Users\Admin\AppData\Local\Temp\server.exe
PID 1036 wrote to memory of 1252 N/A C:\Users\Admin\AppData\Local\Temp\server.exe C:\Users\Admin\AppData\Local\Temp\server.exe
PID 1036 wrote to memory of 1252 N/A C:\Users\Admin\AppData\Local\Temp\server.exe C:\Users\Admin\AppData\Local\Temp\server.exe
PID 1036 wrote to memory of 1252 N/A C:\Users\Admin\AppData\Local\Temp\server.exe C:\Users\Admin\AppData\Local\Temp\server.exe
PID 1252 wrote to memory of 3348 N/A C:\Users\Admin\AppData\Local\Temp\server.exe C:\Windows\SysWOW64\netsh.exe
PID 1252 wrote to memory of 3348 N/A C:\Users\Admin\AppData\Local\Temp\server.exe C:\Windows\SysWOW64\netsh.exe
PID 1252 wrote to memory of 3348 N/A C:\Users\Admin\AppData\Local\Temp\server.exe C:\Windows\SysWOW64\netsh.exe

Processes

C:\Users\Admin\AppData\Local\Temp\021b477ace5e87113272fd8b16830051.exe

"C:\Users\Admin\AppData\Local\Temp\021b477ace5e87113272fd8b16830051.exe"

C:\Users\Admin\AppData\Local\Temp\021b477ace5e87113272fd8b16830051.exe

C:\Users\Admin\AppData\Local\Temp\021b477ace5e87113272fd8b16830051.exe

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

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

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

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

C:\Windows\SysWOW64\netsh.exe

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

Network

Country Destination Domain Proto
US 8.8.8.8:53 41.110.16.96.in-addr.arpa udp
US 8.8.8.8:53 71.31.126.40.in-addr.arpa udp
US 8.8.8.8:53 9.228.82.20.in-addr.arpa udp
US 8.8.8.8:53 18.ip.gl.ply.gg udp
US 147.185.221.18:43389 18.ip.gl.ply.gg tcp
US 8.8.8.8:53 18.221.185.147.in-addr.arpa udp
US 8.8.8.8:53 173.178.17.96.in-addr.arpa udp
US 8.8.8.8:53 43.229.111.52.in-addr.arpa udp
US 8.8.8.8:53 27.73.42.20.in-addr.arpa udp

Files

memory/4456-0-0x00000000751E0000-0x0000000075791000-memory.dmp

memory/4456-1-0x00000000751E0000-0x0000000075791000-memory.dmp

memory/4456-2-0x0000000001430000-0x0000000001440000-memory.dmp

memory/4612-3-0x0000000000400000-0x000000000040C000-memory.dmp

C:\Users\Admin\AppData\Local\Microsoft\CLR_v2.0_32\UsageLogs\021b477ace5e87113272fd8b16830051.exe.log

MD5 9c4b66f77f12558c48b620ddfb44029d
SHA1 446651db643b943ec37b9b3599655e211a4bc73e
SHA256 42f723d18283fda6a0904046cc29ee8d10e562d20c7615259a46ae9c0e4c9708
SHA512 983aed0ec15a79b716ac6dc080146e4ed098c117c31167053fb5971649dc621d1db5292fdd76f3010f094b75d57ea0bdb35bc829c6ba37e4d276b266361dee8e

memory/4612-6-0x00000000751E0000-0x0000000075791000-memory.dmp

memory/4456-7-0x00000000751E0000-0x0000000075791000-memory.dmp

memory/4612-8-0x0000000001240000-0x0000000001250000-memory.dmp

memory/4612-9-0x00000000751E0000-0x0000000075791000-memory.dmp

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

MD5 021b477ace5e87113272fd8b16830051
SHA1 d55ddb61b67e53245adc5bd12822ea56f1602820
SHA256 e31f4f05884e97c569d6641257f40c4634004565874178c122817538e89948bd
SHA512 ef8c8ff1ff3326848becef2615bd2a629dd1eced13c9b9776d75f3a5cfd2e913324422f806264126befdd0d6908d16be081218ab61fe20ef95111cf9a41c8817

memory/1036-22-0x00000000751E0000-0x0000000075791000-memory.dmp

memory/4612-21-0x00000000751E0000-0x0000000075791000-memory.dmp

memory/1036-23-0x0000000000E80000-0x0000000000E90000-memory.dmp

memory/1036-24-0x00000000751E0000-0x0000000075791000-memory.dmp

memory/1252-29-0x00000000751E0000-0x0000000075791000-memory.dmp

memory/1036-30-0x00000000751E0000-0x0000000075791000-memory.dmp

memory/1252-31-0x0000000000F90000-0x0000000000FA0000-memory.dmp

memory/1252-32-0x00000000751E0000-0x0000000075791000-memory.dmp

memory/1252-33-0x00000000751E0000-0x0000000075791000-memory.dmp

memory/1252-34-0x0000000000F90000-0x0000000000FA0000-memory.dmp

Analysis: behavioral1

Detonation Overview

Submitted

2024-02-26 21:41

Reported

2024-02-26 21:43

Platform

win7-20240221-en

Max time kernel

119s

Max time network

119s

Command Line

"C:\Users\Admin\AppData\Local\Temp\021b477ace5e87113272fd8b16830051.exe"

Signatures

Suspicious use of SetThreadContext

Description Indicator Process Target
PID 2868 set thread context of 1708 N/A C:\Users\Admin\AppData\Local\Temp\021b477ace5e87113272fd8b16830051.exe C:\Users\Admin\AppData\Local\Temp\021b477ace5e87113272fd8b16830051.exe

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Local\Temp\021b477ace5e87113272fd8b16830051.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 2868 wrote to memory of 1708 N/A C:\Users\Admin\AppData\Local\Temp\021b477ace5e87113272fd8b16830051.exe C:\Users\Admin\AppData\Local\Temp\021b477ace5e87113272fd8b16830051.exe
PID 2868 wrote to memory of 1708 N/A C:\Users\Admin\AppData\Local\Temp\021b477ace5e87113272fd8b16830051.exe C:\Users\Admin\AppData\Local\Temp\021b477ace5e87113272fd8b16830051.exe
PID 2868 wrote to memory of 1708 N/A C:\Users\Admin\AppData\Local\Temp\021b477ace5e87113272fd8b16830051.exe C:\Users\Admin\AppData\Local\Temp\021b477ace5e87113272fd8b16830051.exe
PID 2868 wrote to memory of 1708 N/A C:\Users\Admin\AppData\Local\Temp\021b477ace5e87113272fd8b16830051.exe C:\Users\Admin\AppData\Local\Temp\021b477ace5e87113272fd8b16830051.exe
PID 2868 wrote to memory of 1708 N/A C:\Users\Admin\AppData\Local\Temp\021b477ace5e87113272fd8b16830051.exe C:\Users\Admin\AppData\Local\Temp\021b477ace5e87113272fd8b16830051.exe
PID 2868 wrote to memory of 1708 N/A C:\Users\Admin\AppData\Local\Temp\021b477ace5e87113272fd8b16830051.exe C:\Users\Admin\AppData\Local\Temp\021b477ace5e87113272fd8b16830051.exe
PID 2868 wrote to memory of 1708 N/A C:\Users\Admin\AppData\Local\Temp\021b477ace5e87113272fd8b16830051.exe C:\Users\Admin\AppData\Local\Temp\021b477ace5e87113272fd8b16830051.exe
PID 2868 wrote to memory of 1708 N/A C:\Users\Admin\AppData\Local\Temp\021b477ace5e87113272fd8b16830051.exe C:\Users\Admin\AppData\Local\Temp\021b477ace5e87113272fd8b16830051.exe
PID 2868 wrote to memory of 1708 N/A C:\Users\Admin\AppData\Local\Temp\021b477ace5e87113272fd8b16830051.exe C:\Users\Admin\AppData\Local\Temp\021b477ace5e87113272fd8b16830051.exe

Processes

C:\Users\Admin\AppData\Local\Temp\021b477ace5e87113272fd8b16830051.exe

"C:\Users\Admin\AppData\Local\Temp\021b477ace5e87113272fd8b16830051.exe"

C:\Users\Admin\AppData\Local\Temp\021b477ace5e87113272fd8b16830051.exe

C:\Users\Admin\AppData\Local\Temp\021b477ace5e87113272fd8b16830051.exe

Network

N/A

Files

memory/2868-0-0x00000000746F0000-0x0000000074C9B000-memory.dmp

memory/2868-1-0x0000000002150000-0x0000000002190000-memory.dmp

memory/2868-2-0x00000000746F0000-0x0000000074C9B000-memory.dmp

memory/2868-4-0x00000000746F0000-0x0000000074C9B000-memory.dmp