Malware Analysis Report

2025-04-13 23:42

Sample ID 230811-ytrknsad8y
Target xZJKmUXowvtp.exe
SHA256 784e7f352ce8a8ca2e2909967bb42e67652e964c981640222ba11aaa148f092d
Tags
nyan cat njrat
score
10/10

Table of Contents

Analysis Overview

MITRE ATT&CK

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

784e7f352ce8a8ca2e2909967bb42e67652e964c981640222ba11aaa148f092d

Threat Level: Known bad

The file xZJKmUXowvtp.exe was found to be: Known bad.

Malicious Activity Summary

nyan cat njrat

Njrat family

Unsigned PE

Suspicious use of AdjustPrivilegeToken

Suspicious use of WriteProcessMemory

MITRE ATT&CK

N/A

Analysis: static1

Detonation Overview

Reported

2023-08-11 20:04

Signatures

Njrat family

njrat

Unsigned PE

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

Analysis: behavioral2

Detonation Overview

Submitted

2023-08-11 20:04

Reported

2023-08-11 20:07

Platform

win10v2004-20230703-en

Max time kernel

137s

Max time network

142s

Command Line

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

Signatures

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Local\Temp\xZJKmUXowvtp.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\xZJKmUXowvtp.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\xZJKmUXowvtp.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 956 wrote to memory of 3488 N/A C:\Users\Admin\AppData\Local\Temp\xZJKmUXowvtp.exe C:\Windows\SysWOW64\cmd.exe
PID 956 wrote to memory of 3488 N/A C:\Users\Admin\AppData\Local\Temp\xZJKmUXowvtp.exe C:\Windows\SysWOW64\cmd.exe
PID 956 wrote to memory of 3488 N/A C:\Users\Admin\AppData\Local\Temp\xZJKmUXowvtp.exe C:\Windows\SysWOW64\cmd.exe

Processes

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

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

C:\Windows\SysWOW64\cmd.exe

cmd.exe /C Y /N /D Y /T 1 & Del "C:\Users\Admin\AppData\Local\Temp\xZJKmUXowvtp.exe"

Network

Country Destination Domain Proto
US 8.8.8.8:53 158.240.127.40.in-addr.arpa udp
US 8.8.8.8:53 133.32.126.40.in-addr.arpa udp
US 8.8.8.8:53 108.211.229.192.in-addr.arpa udp
US 8.8.8.8:53 fortuna777.duckdns.org udp
SE 46.246.82.6:1994 fortuna777.duckdns.org tcp
US 8.8.8.8:53 6.82.246.46.in-addr.arpa udp
US 8.8.8.8:53 208.194.73.20.in-addr.arpa udp
US 8.8.8.8:53 233.141.123.20.in-addr.arpa udp

Files

memory/956-136-0x0000000075230000-0x00000000757E1000-memory.dmp

memory/956-137-0x0000000075230000-0x00000000757E1000-memory.dmp

memory/956-138-0x0000000000B40000-0x0000000000B50000-memory.dmp

memory/956-139-0x0000000075230000-0x00000000757E1000-memory.dmp

memory/956-140-0x0000000075230000-0x00000000757E1000-memory.dmp

memory/956-141-0x0000000000B40000-0x0000000000B50000-memory.dmp

memory/956-143-0x0000000075230000-0x00000000757E1000-memory.dmp

Analysis: behavioral1

Detonation Overview

Submitted

2023-08-11 20:04

Reported

2023-08-11 20:07

Platform

win7-20230712-en

Max time kernel

117s

Max time network

119s

Command Line

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

Signatures

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Local\Temp\xZJKmUXowvtp.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\xZJKmUXowvtp.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\xZJKmUXowvtp.exe N/A

Processes

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

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

C:\Windows\SysWOW64\cmd.exe

cmd.exe /C Y /N /D Y /T 1 & Del "C:\Users\Admin\AppData\Local\Temp\xZJKmUXowvtp.exe"

Network

Country Destination Domain Proto
US 8.8.8.8:53 fortuna777.duckdns.org udp
SE 46.246.82.6:1994 fortuna777.duckdns.org tcp

Files

memory/2516-56-0x0000000002030000-0x0000000002070000-memory.dmp

memory/2516-55-0x0000000074320000-0x00000000748CB000-memory.dmp

memory/2516-54-0x0000000074320000-0x00000000748CB000-memory.dmp

memory/2516-57-0x0000000074320000-0x00000000748CB000-memory.dmp

memory/2516-58-0x0000000074320000-0x00000000748CB000-memory.dmp

memory/2516-59-0x0000000002030000-0x0000000002070000-memory.dmp

memory/2516-60-0x0000000002030000-0x0000000002070000-memory.dmp

memory/2516-61-0x0000000074320000-0x00000000748CB000-memory.dmp