Malware Analysis Report

2025-04-13 23:42

Sample ID 230819-s473hsbc65
Target 49561ba535b0ace7088275850c7226178f964937f30a69455513034e5ffb9bb5_JC.exe
SHA256 49561ba535b0ace7088275850c7226178f964937f30a69455513034e5ffb9bb5
Tags
nyan cat njrat
score
10/10

Table of Contents

Analysis Overview

MITRE ATT&CK

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

49561ba535b0ace7088275850c7226178f964937f30a69455513034e5ffb9bb5

Threat Level: Known bad

The file 49561ba535b0ace7088275850c7226178f964937f30a69455513034e5ffb9bb5_JC.exe was found to be: Known bad.

Malicious Activity Summary

nyan cat njrat

Njrat family

Unsigned PE

Suspicious use of AdjustPrivilegeToken

MITRE ATT&CK

N/A

Analysis: static1

Detonation Overview

Reported

2023-08-19 15:41

Signatures

Njrat family

njrat

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2023-08-19 15:41

Reported

2023-08-19 15:44

Platform

win7-20230712-en

Max time kernel

151s

Max time network

148s

Command Line

"C:\Users\Admin\AppData\Local\Temp\49561ba535b0ace7088275850c7226178f964937f30a69455513034e5ffb9bb5_JC.exe"

Signatures

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Local\Temp\49561ba535b0ace7088275850c7226178f964937f30a69455513034e5ffb9bb5_JC.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\49561ba535b0ace7088275850c7226178f964937f30a69455513034e5ffb9bb5_JC.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\49561ba535b0ace7088275850c7226178f964937f30a69455513034e5ffb9bb5_JC.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\49561ba535b0ace7088275850c7226178f964937f30a69455513034e5ffb9bb5_JC.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\49561ba535b0ace7088275850c7226178f964937f30a69455513034e5ffb9bb5_JC.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\49561ba535b0ace7088275850c7226178f964937f30a69455513034e5ffb9bb5_JC.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\49561ba535b0ace7088275850c7226178f964937f30a69455513034e5ffb9bb5_JC.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\49561ba535b0ace7088275850c7226178f964937f30a69455513034e5ffb9bb5_JC.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\49561ba535b0ace7088275850c7226178f964937f30a69455513034e5ffb9bb5_JC.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\49561ba535b0ace7088275850c7226178f964937f30a69455513034e5ffb9bb5_JC.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\49561ba535b0ace7088275850c7226178f964937f30a69455513034e5ffb9bb5_JC.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\49561ba535b0ace7088275850c7226178f964937f30a69455513034e5ffb9bb5_JC.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\49561ba535b0ace7088275850c7226178f964937f30a69455513034e5ffb9bb5_JC.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\49561ba535b0ace7088275850c7226178f964937f30a69455513034e5ffb9bb5_JC.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\49561ba535b0ace7088275850c7226178f964937f30a69455513034e5ffb9bb5_JC.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\49561ba535b0ace7088275850c7226178f964937f30a69455513034e5ffb9bb5_JC.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\49561ba535b0ace7088275850c7226178f964937f30a69455513034e5ffb9bb5_JC.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\49561ba535b0ace7088275850c7226178f964937f30a69455513034e5ffb9bb5_JC.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\49561ba535b0ace7088275850c7226178f964937f30a69455513034e5ffb9bb5_JC.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\49561ba535b0ace7088275850c7226178f964937f30a69455513034e5ffb9bb5_JC.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\49561ba535b0ace7088275850c7226178f964937f30a69455513034e5ffb9bb5_JC.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\49561ba535b0ace7088275850c7226178f964937f30a69455513034e5ffb9bb5_JC.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\49561ba535b0ace7088275850c7226178f964937f30a69455513034e5ffb9bb5_JC.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\49561ba535b0ace7088275850c7226178f964937f30a69455513034e5ffb9bb5_JC.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\49561ba535b0ace7088275850c7226178f964937f30a69455513034e5ffb9bb5_JC.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\49561ba535b0ace7088275850c7226178f964937f30a69455513034e5ffb9bb5_JC.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\49561ba535b0ace7088275850c7226178f964937f30a69455513034e5ffb9bb5_JC.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\49561ba535b0ace7088275850c7226178f964937f30a69455513034e5ffb9bb5_JC.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\49561ba535b0ace7088275850c7226178f964937f30a69455513034e5ffb9bb5_JC.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\49561ba535b0ace7088275850c7226178f964937f30a69455513034e5ffb9bb5_JC.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\49561ba535b0ace7088275850c7226178f964937f30a69455513034e5ffb9bb5_JC.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\49561ba535b0ace7088275850c7226178f964937f30a69455513034e5ffb9bb5_JC.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\49561ba535b0ace7088275850c7226178f964937f30a69455513034e5ffb9bb5_JC.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\49561ba535b0ace7088275850c7226178f964937f30a69455513034e5ffb9bb5_JC.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\49561ba535b0ace7088275850c7226178f964937f30a69455513034e5ffb9bb5_JC.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\49561ba535b0ace7088275850c7226178f964937f30a69455513034e5ffb9bb5_JC.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\49561ba535b0ace7088275850c7226178f964937f30a69455513034e5ffb9bb5_JC.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\49561ba535b0ace7088275850c7226178f964937f30a69455513034e5ffb9bb5_JC.exe

"C:\Users\Admin\AppData\Local\Temp\49561ba535b0ace7088275850c7226178f964937f30a69455513034e5ffb9bb5_JC.exe"

Network

Country Destination Domain Proto
US 8.8.8.8:53 deidf.duckdns.org udp
CO 191.89.247.6:9993 deidf.duckdns.org tcp

Files

memory/2616-54-0x0000000074D90000-0x000000007533B000-memory.dmp

memory/2616-55-0x0000000074D90000-0x000000007533B000-memory.dmp

memory/2616-56-0x0000000000980000-0x00000000009C0000-memory.dmp

memory/2616-57-0x0000000074D90000-0x000000007533B000-memory.dmp

memory/2616-58-0x0000000074D90000-0x000000007533B000-memory.dmp

memory/2616-59-0x0000000000980000-0x00000000009C0000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2023-08-19 15:41

Reported

2023-08-19 15:44

Platform

win10v2004-20230703-en

Max time kernel

148s

Max time network

149s

Command Line

"C:\Users\Admin\AppData\Local\Temp\49561ba535b0ace7088275850c7226178f964937f30a69455513034e5ffb9bb5_JC.exe"

Signatures

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Local\Temp\49561ba535b0ace7088275850c7226178f964937f30a69455513034e5ffb9bb5_JC.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\49561ba535b0ace7088275850c7226178f964937f30a69455513034e5ffb9bb5_JC.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\49561ba535b0ace7088275850c7226178f964937f30a69455513034e5ffb9bb5_JC.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\49561ba535b0ace7088275850c7226178f964937f30a69455513034e5ffb9bb5_JC.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\49561ba535b0ace7088275850c7226178f964937f30a69455513034e5ffb9bb5_JC.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\49561ba535b0ace7088275850c7226178f964937f30a69455513034e5ffb9bb5_JC.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\49561ba535b0ace7088275850c7226178f964937f30a69455513034e5ffb9bb5_JC.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\49561ba535b0ace7088275850c7226178f964937f30a69455513034e5ffb9bb5_JC.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\49561ba535b0ace7088275850c7226178f964937f30a69455513034e5ffb9bb5_JC.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\49561ba535b0ace7088275850c7226178f964937f30a69455513034e5ffb9bb5_JC.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\49561ba535b0ace7088275850c7226178f964937f30a69455513034e5ffb9bb5_JC.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\49561ba535b0ace7088275850c7226178f964937f30a69455513034e5ffb9bb5_JC.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\49561ba535b0ace7088275850c7226178f964937f30a69455513034e5ffb9bb5_JC.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\49561ba535b0ace7088275850c7226178f964937f30a69455513034e5ffb9bb5_JC.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\49561ba535b0ace7088275850c7226178f964937f30a69455513034e5ffb9bb5_JC.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\49561ba535b0ace7088275850c7226178f964937f30a69455513034e5ffb9bb5_JC.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\49561ba535b0ace7088275850c7226178f964937f30a69455513034e5ffb9bb5_JC.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\49561ba535b0ace7088275850c7226178f964937f30a69455513034e5ffb9bb5_JC.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\49561ba535b0ace7088275850c7226178f964937f30a69455513034e5ffb9bb5_JC.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\49561ba535b0ace7088275850c7226178f964937f30a69455513034e5ffb9bb5_JC.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\49561ba535b0ace7088275850c7226178f964937f30a69455513034e5ffb9bb5_JC.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\49561ba535b0ace7088275850c7226178f964937f30a69455513034e5ffb9bb5_JC.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\49561ba535b0ace7088275850c7226178f964937f30a69455513034e5ffb9bb5_JC.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\49561ba535b0ace7088275850c7226178f964937f30a69455513034e5ffb9bb5_JC.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\49561ba535b0ace7088275850c7226178f964937f30a69455513034e5ffb9bb5_JC.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\49561ba535b0ace7088275850c7226178f964937f30a69455513034e5ffb9bb5_JC.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\49561ba535b0ace7088275850c7226178f964937f30a69455513034e5ffb9bb5_JC.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\49561ba535b0ace7088275850c7226178f964937f30a69455513034e5ffb9bb5_JC.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\49561ba535b0ace7088275850c7226178f964937f30a69455513034e5ffb9bb5_JC.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\49561ba535b0ace7088275850c7226178f964937f30a69455513034e5ffb9bb5_JC.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\49561ba535b0ace7088275850c7226178f964937f30a69455513034e5ffb9bb5_JC.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\49561ba535b0ace7088275850c7226178f964937f30a69455513034e5ffb9bb5_JC.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\49561ba535b0ace7088275850c7226178f964937f30a69455513034e5ffb9bb5_JC.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\49561ba535b0ace7088275850c7226178f964937f30a69455513034e5ffb9bb5_JC.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\49561ba535b0ace7088275850c7226178f964937f30a69455513034e5ffb9bb5_JC.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\49561ba535b0ace7088275850c7226178f964937f30a69455513034e5ffb9bb5_JC.exe

"C:\Users\Admin\AppData\Local\Temp\49561ba535b0ace7088275850c7226178f964937f30a69455513034e5ffb9bb5_JC.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 59.128.231.4.in-addr.arpa udp
US 8.8.8.8:53 240.81.21.72.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 140.32.126.40.in-addr.arpa udp
US 8.8.8.8:53 158.240.127.40.in-addr.arpa udp
US 8.8.8.8:53 deidf.duckdns.org udp
CO 191.89.247.6:9993 deidf.duckdns.org tcp
US 8.8.8.8:53 6.247.89.191.in-addr.arpa udp
US 8.8.8.8:53 157.123.68.40.in-addr.arpa udp
US 8.8.8.8:53 198.187.3.20.in-addr.arpa udp
US 8.8.8.8:53 254.133.241.8.in-addr.arpa udp
US 8.8.8.8:53 1.77.109.52.in-addr.arpa udp
US 8.8.8.8:53 8.173.189.20.in-addr.arpa udp

Files

memory/752-136-0x00000000747B0000-0x0000000074D61000-memory.dmp

memory/752-137-0x00000000747B0000-0x0000000074D61000-memory.dmp

memory/752-138-0x0000000000D50000-0x0000000000D60000-memory.dmp

memory/752-139-0x00000000747B0000-0x0000000074D61000-memory.dmp

memory/752-140-0x00000000747B0000-0x0000000074D61000-memory.dmp