Malware Analysis Report

2025-04-13 23:42

Sample ID 230814-s22gysfa2y
Target e936c50b852c04e153e12893717f7ef6e059dbce99fe615243d1109c5cd1de66_JC.exe
SHA256 e936c50b852c04e153e12893717f7ef6e059dbce99fe615243d1109c5cd1de66
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

e936c50b852c04e153e12893717f7ef6e059dbce99fe615243d1109c5cd1de66

Threat Level: Known bad

The file e936c50b852c04e153e12893717f7ef6e059dbce99fe615243d1109c5cd1de66_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

2023-08-14 15:38

Signatures

Njrat family

njrat

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2023-08-14 15:38

Reported

2023-08-14 15:40

Platform

win7-20230712-en

Max time kernel

149s

Max time network

151s

Command Line

"C:\Users\Admin\AppData\Local\Temp\e936c50b852c04e153e12893717f7ef6e059dbce99fe615243d1109c5cd1de66_JC.exe"

Signatures

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Local\Temp\e936c50b852c04e153e12893717f7ef6e059dbce99fe615243d1109c5cd1de66_JC.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\e936c50b852c04e153e12893717f7ef6e059dbce99fe615243d1109c5cd1de66_JC.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\e936c50b852c04e153e12893717f7ef6e059dbce99fe615243d1109c5cd1de66_JC.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\e936c50b852c04e153e12893717f7ef6e059dbce99fe615243d1109c5cd1de66_JC.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\e936c50b852c04e153e12893717f7ef6e059dbce99fe615243d1109c5cd1de66_JC.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\e936c50b852c04e153e12893717f7ef6e059dbce99fe615243d1109c5cd1de66_JC.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\e936c50b852c04e153e12893717f7ef6e059dbce99fe615243d1109c5cd1de66_JC.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\e936c50b852c04e153e12893717f7ef6e059dbce99fe615243d1109c5cd1de66_JC.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\e936c50b852c04e153e12893717f7ef6e059dbce99fe615243d1109c5cd1de66_JC.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\e936c50b852c04e153e12893717f7ef6e059dbce99fe615243d1109c5cd1de66_JC.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\e936c50b852c04e153e12893717f7ef6e059dbce99fe615243d1109c5cd1de66_JC.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\e936c50b852c04e153e12893717f7ef6e059dbce99fe615243d1109c5cd1de66_JC.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\e936c50b852c04e153e12893717f7ef6e059dbce99fe615243d1109c5cd1de66_JC.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\e936c50b852c04e153e12893717f7ef6e059dbce99fe615243d1109c5cd1de66_JC.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\e936c50b852c04e153e12893717f7ef6e059dbce99fe615243d1109c5cd1de66_JC.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\e936c50b852c04e153e12893717f7ef6e059dbce99fe615243d1109c5cd1de66_JC.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\e936c50b852c04e153e12893717f7ef6e059dbce99fe615243d1109c5cd1de66_JC.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\e936c50b852c04e153e12893717f7ef6e059dbce99fe615243d1109c5cd1de66_JC.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\e936c50b852c04e153e12893717f7ef6e059dbce99fe615243d1109c5cd1de66_JC.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\e936c50b852c04e153e12893717f7ef6e059dbce99fe615243d1109c5cd1de66_JC.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\e936c50b852c04e153e12893717f7ef6e059dbce99fe615243d1109c5cd1de66_JC.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\e936c50b852c04e153e12893717f7ef6e059dbce99fe615243d1109c5cd1de66_JC.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\e936c50b852c04e153e12893717f7ef6e059dbce99fe615243d1109c5cd1de66_JC.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\e936c50b852c04e153e12893717f7ef6e059dbce99fe615243d1109c5cd1de66_JC.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\e936c50b852c04e153e12893717f7ef6e059dbce99fe615243d1109c5cd1de66_JC.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\e936c50b852c04e153e12893717f7ef6e059dbce99fe615243d1109c5cd1de66_JC.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\e936c50b852c04e153e12893717f7ef6e059dbce99fe615243d1109c5cd1de66_JC.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\e936c50b852c04e153e12893717f7ef6e059dbce99fe615243d1109c5cd1de66_JC.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\e936c50b852c04e153e12893717f7ef6e059dbce99fe615243d1109c5cd1de66_JC.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\e936c50b852c04e153e12893717f7ef6e059dbce99fe615243d1109c5cd1de66_JC.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\e936c50b852c04e153e12893717f7ef6e059dbce99fe615243d1109c5cd1de66_JC.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\e936c50b852c04e153e12893717f7ef6e059dbce99fe615243d1109c5cd1de66_JC.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\e936c50b852c04e153e12893717f7ef6e059dbce99fe615243d1109c5cd1de66_JC.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\e936c50b852c04e153e12893717f7ef6e059dbce99fe615243d1109c5cd1de66_JC.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\e936c50b852c04e153e12893717f7ef6e059dbce99fe615243d1109c5cd1de66_JC.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\e936c50b852c04e153e12893717f7ef6e059dbce99fe615243d1109c5cd1de66_JC.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\e936c50b852c04e153e12893717f7ef6e059dbce99fe615243d1109c5cd1de66_JC.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\e936c50b852c04e153e12893717f7ef6e059dbce99fe615243d1109c5cd1de66_JC.exe

"C:\Users\Admin\AppData\Local\Temp\e936c50b852c04e153e12893717f7ef6e059dbce99fe615243d1109c5cd1de66_JC.exe"

Network

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

Files

memory/1400-54-0x0000000075010000-0x00000000755BB000-memory.dmp

memory/1400-55-0x0000000075010000-0x00000000755BB000-memory.dmp

memory/1400-56-0x00000000006A0000-0x00000000006E0000-memory.dmp

memory/1400-57-0x0000000075010000-0x00000000755BB000-memory.dmp

memory/1400-58-0x0000000075010000-0x00000000755BB000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2023-08-14 15:38

Reported

2023-08-14 15:40

Platform

win10v2004-20230703-en

Max time kernel

148s

Max time network

154s

Command Line

"C:\Users\Admin\AppData\Local\Temp\e936c50b852c04e153e12893717f7ef6e059dbce99fe615243d1109c5cd1de66_JC.exe"

Signatures

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Local\Temp\e936c50b852c04e153e12893717f7ef6e059dbce99fe615243d1109c5cd1de66_JC.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\e936c50b852c04e153e12893717f7ef6e059dbce99fe615243d1109c5cd1de66_JC.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\e936c50b852c04e153e12893717f7ef6e059dbce99fe615243d1109c5cd1de66_JC.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\e936c50b852c04e153e12893717f7ef6e059dbce99fe615243d1109c5cd1de66_JC.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\e936c50b852c04e153e12893717f7ef6e059dbce99fe615243d1109c5cd1de66_JC.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\e936c50b852c04e153e12893717f7ef6e059dbce99fe615243d1109c5cd1de66_JC.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\e936c50b852c04e153e12893717f7ef6e059dbce99fe615243d1109c5cd1de66_JC.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\e936c50b852c04e153e12893717f7ef6e059dbce99fe615243d1109c5cd1de66_JC.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\e936c50b852c04e153e12893717f7ef6e059dbce99fe615243d1109c5cd1de66_JC.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\e936c50b852c04e153e12893717f7ef6e059dbce99fe615243d1109c5cd1de66_JC.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\e936c50b852c04e153e12893717f7ef6e059dbce99fe615243d1109c5cd1de66_JC.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\e936c50b852c04e153e12893717f7ef6e059dbce99fe615243d1109c5cd1de66_JC.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\e936c50b852c04e153e12893717f7ef6e059dbce99fe615243d1109c5cd1de66_JC.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\e936c50b852c04e153e12893717f7ef6e059dbce99fe615243d1109c5cd1de66_JC.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\e936c50b852c04e153e12893717f7ef6e059dbce99fe615243d1109c5cd1de66_JC.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\e936c50b852c04e153e12893717f7ef6e059dbce99fe615243d1109c5cd1de66_JC.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\e936c50b852c04e153e12893717f7ef6e059dbce99fe615243d1109c5cd1de66_JC.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\e936c50b852c04e153e12893717f7ef6e059dbce99fe615243d1109c5cd1de66_JC.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\e936c50b852c04e153e12893717f7ef6e059dbce99fe615243d1109c5cd1de66_JC.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\e936c50b852c04e153e12893717f7ef6e059dbce99fe615243d1109c5cd1de66_JC.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\e936c50b852c04e153e12893717f7ef6e059dbce99fe615243d1109c5cd1de66_JC.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\e936c50b852c04e153e12893717f7ef6e059dbce99fe615243d1109c5cd1de66_JC.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\e936c50b852c04e153e12893717f7ef6e059dbce99fe615243d1109c5cd1de66_JC.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\e936c50b852c04e153e12893717f7ef6e059dbce99fe615243d1109c5cd1de66_JC.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\e936c50b852c04e153e12893717f7ef6e059dbce99fe615243d1109c5cd1de66_JC.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\e936c50b852c04e153e12893717f7ef6e059dbce99fe615243d1109c5cd1de66_JC.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\e936c50b852c04e153e12893717f7ef6e059dbce99fe615243d1109c5cd1de66_JC.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\e936c50b852c04e153e12893717f7ef6e059dbce99fe615243d1109c5cd1de66_JC.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\e936c50b852c04e153e12893717f7ef6e059dbce99fe615243d1109c5cd1de66_JC.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\e936c50b852c04e153e12893717f7ef6e059dbce99fe615243d1109c5cd1de66_JC.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\e936c50b852c04e153e12893717f7ef6e059dbce99fe615243d1109c5cd1de66_JC.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\e936c50b852c04e153e12893717f7ef6e059dbce99fe615243d1109c5cd1de66_JC.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\e936c50b852c04e153e12893717f7ef6e059dbce99fe615243d1109c5cd1de66_JC.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\e936c50b852c04e153e12893717f7ef6e059dbce99fe615243d1109c5cd1de66_JC.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\e936c50b852c04e153e12893717f7ef6e059dbce99fe615243d1109c5cd1de66_JC.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\e936c50b852c04e153e12893717f7ef6e059dbce99fe615243d1109c5cd1de66_JC.exe

"C:\Users\Admin\AppData\Local\Temp\e936c50b852c04e153e12893717f7ef6e059dbce99fe615243d1109c5cd1de66_JC.exe"

Network

Country Destination Domain Proto
US 8.8.8.8:53 146.78.124.51.in-addr.arpa udp
US 8.8.8.8:53 126.131.255.8.in-addr.arpa udp
US 8.8.8.8:53 64.159.190.20.in-addr.arpa udp
US 8.8.8.8:53 108.211.229.192.in-addr.arpa udp
US 8.8.8.8:53 tiagoodiaz.duckdns.org udp
SE 46.246.82.6:1994 tiagoodiaz.duckdns.org tcp
US 8.8.8.8:53 158.240.127.40.in-addr.arpa udp
US 8.8.8.8:53 103.169.127.40.in-addr.arpa udp
US 8.8.8.8:53 206.23.85.13.in-addr.arpa udp
SE 46.246.82.6:1994 tiagoodiaz.duckdns.org tcp
SE 46.246.82.6:1994 tiagoodiaz.duckdns.org tcp
US 8.8.8.8:53 tiagoodiaz.duckdns.org udp
SE 46.246.82.6:1994 tiagoodiaz.duckdns.org tcp
US 8.8.8.8:53 1.77.109.52.in-addr.arpa udp
SE 46.246.82.6:1994 tiagoodiaz.duckdns.org tcp
SE 46.246.82.6:1994 tiagoodiaz.duckdns.org tcp
US 8.8.8.8:53 89.65.42.20.in-addr.arpa udp
US 8.8.8.8:53 tiagoodiaz.duckdns.org udp
SE 46.246.82.6:1994 tiagoodiaz.duckdns.org tcp

Files

memory/4616-133-0x0000000074920000-0x0000000074ED1000-memory.dmp

memory/4616-134-0x0000000074920000-0x0000000074ED1000-memory.dmp

memory/4616-135-0x0000000000AE0000-0x0000000000AF0000-memory.dmp

memory/4616-136-0x0000000074920000-0x0000000074ED1000-memory.dmp

memory/4616-137-0x0000000074920000-0x0000000074ED1000-memory.dmp

memory/4616-138-0x0000000000AE0000-0x0000000000AF0000-memory.dmp