Malware Analysis Report

2025-04-13 23:42

Sample ID 230821-xx13vahc5t
Target ba4e87b503573bc23a39337de023711bf0346da26f64d1df83341414632cc07b_JC.exe
SHA256 ba4e87b503573bc23a39337de023711bf0346da26f64d1df83341414632cc07b
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

ba4e87b503573bc23a39337de023711bf0346da26f64d1df83341414632cc07b

Threat Level: Known bad

The file ba4e87b503573bc23a39337de023711bf0346da26f64d1df83341414632cc07b_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

2023-08-21 19:14

Signatures

Njrat family

njrat

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2023-08-21 19:14

Reported

2023-08-21 19:17

Platform

win7-20230712-en

Max time kernel

149s

Max time network

143s

Command Line

"C:\Users\Admin\AppData\Local\Temp\ba4e87b503573bc23a39337de023711bf0346da26f64d1df83341414632cc07b_JC.exe"

Signatures

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Local\Temp\ba4e87b503573bc23a39337de023711bf0346da26f64d1df83341414632cc07b_JC.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\ba4e87b503573bc23a39337de023711bf0346da26f64d1df83341414632cc07b_JC.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\ba4e87b503573bc23a39337de023711bf0346da26f64d1df83341414632cc07b_JC.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\ba4e87b503573bc23a39337de023711bf0346da26f64d1df83341414632cc07b_JC.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\ba4e87b503573bc23a39337de023711bf0346da26f64d1df83341414632cc07b_JC.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\ba4e87b503573bc23a39337de023711bf0346da26f64d1df83341414632cc07b_JC.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\ba4e87b503573bc23a39337de023711bf0346da26f64d1df83341414632cc07b_JC.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\ba4e87b503573bc23a39337de023711bf0346da26f64d1df83341414632cc07b_JC.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\ba4e87b503573bc23a39337de023711bf0346da26f64d1df83341414632cc07b_JC.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\ba4e87b503573bc23a39337de023711bf0346da26f64d1df83341414632cc07b_JC.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\ba4e87b503573bc23a39337de023711bf0346da26f64d1df83341414632cc07b_JC.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\ba4e87b503573bc23a39337de023711bf0346da26f64d1df83341414632cc07b_JC.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\ba4e87b503573bc23a39337de023711bf0346da26f64d1df83341414632cc07b_JC.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\ba4e87b503573bc23a39337de023711bf0346da26f64d1df83341414632cc07b_JC.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\ba4e87b503573bc23a39337de023711bf0346da26f64d1df83341414632cc07b_JC.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\ba4e87b503573bc23a39337de023711bf0346da26f64d1df83341414632cc07b_JC.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\ba4e87b503573bc23a39337de023711bf0346da26f64d1df83341414632cc07b_JC.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\ba4e87b503573bc23a39337de023711bf0346da26f64d1df83341414632cc07b_JC.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\ba4e87b503573bc23a39337de023711bf0346da26f64d1df83341414632cc07b_JC.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\ba4e87b503573bc23a39337de023711bf0346da26f64d1df83341414632cc07b_JC.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\ba4e87b503573bc23a39337de023711bf0346da26f64d1df83341414632cc07b_JC.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\ba4e87b503573bc23a39337de023711bf0346da26f64d1df83341414632cc07b_JC.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\ba4e87b503573bc23a39337de023711bf0346da26f64d1df83341414632cc07b_JC.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\ba4e87b503573bc23a39337de023711bf0346da26f64d1df83341414632cc07b_JC.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\ba4e87b503573bc23a39337de023711bf0346da26f64d1df83341414632cc07b_JC.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\ba4e87b503573bc23a39337de023711bf0346da26f64d1df83341414632cc07b_JC.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\ba4e87b503573bc23a39337de023711bf0346da26f64d1df83341414632cc07b_JC.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\ba4e87b503573bc23a39337de023711bf0346da26f64d1df83341414632cc07b_JC.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\ba4e87b503573bc23a39337de023711bf0346da26f64d1df83341414632cc07b_JC.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\ba4e87b503573bc23a39337de023711bf0346da26f64d1df83341414632cc07b_JC.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\ba4e87b503573bc23a39337de023711bf0346da26f64d1df83341414632cc07b_JC.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\ba4e87b503573bc23a39337de023711bf0346da26f64d1df83341414632cc07b_JC.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\ba4e87b503573bc23a39337de023711bf0346da26f64d1df83341414632cc07b_JC.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\ba4e87b503573bc23a39337de023711bf0346da26f64d1df83341414632cc07b_JC.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\ba4e87b503573bc23a39337de023711bf0346da26f64d1df83341414632cc07b_JC.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\ba4e87b503573bc23a39337de023711bf0346da26f64d1df83341414632cc07b_JC.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\ba4e87b503573bc23a39337de023711bf0346da26f64d1df83341414632cc07b_JC.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\ba4e87b503573bc23a39337de023711bf0346da26f64d1df83341414632cc07b_JC.exe

"C:\Users\Admin\AppData\Local\Temp\ba4e87b503573bc23a39337de023711bf0346da26f64d1df83341414632cc07b_JC.exe"

Network

Country Destination Domain Proto
US 8.8.8.8:53 fortuna777.duckdns.org udp
SE 46.246.14.10:1994 fortuna777.duckdns.org tcp
SE 46.246.14.10:1994 fortuna777.duckdns.org tcp
SE 46.246.14.10:1994 fortuna777.duckdns.org tcp
US 8.8.8.8:53 fortuna777.duckdns.org udp
SE 46.246.84.11:1994 fortuna777.duckdns.org tcp

Files

memory/1232-54-0x0000000074BD0000-0x000000007517B000-memory.dmp

memory/1232-55-0x0000000074BD0000-0x000000007517B000-memory.dmp

memory/1232-56-0x0000000000620000-0x0000000000660000-memory.dmp

memory/1232-57-0x0000000074BD0000-0x000000007517B000-memory.dmp

memory/1232-58-0x0000000074BD0000-0x000000007517B000-memory.dmp

memory/1232-59-0x0000000000620000-0x0000000000660000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2023-08-21 19:14

Reported

2023-08-21 19:17

Platform

win10v2004-20230703-en

Max time kernel

149s

Max time network

153s

Command Line

"C:\Users\Admin\AppData\Local\Temp\ba4e87b503573bc23a39337de023711bf0346da26f64d1df83341414632cc07b_JC.exe"

Signatures

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Local\Temp\ba4e87b503573bc23a39337de023711bf0346da26f64d1df83341414632cc07b_JC.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\ba4e87b503573bc23a39337de023711bf0346da26f64d1df83341414632cc07b_JC.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\ba4e87b503573bc23a39337de023711bf0346da26f64d1df83341414632cc07b_JC.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\ba4e87b503573bc23a39337de023711bf0346da26f64d1df83341414632cc07b_JC.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\ba4e87b503573bc23a39337de023711bf0346da26f64d1df83341414632cc07b_JC.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\ba4e87b503573bc23a39337de023711bf0346da26f64d1df83341414632cc07b_JC.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\ba4e87b503573bc23a39337de023711bf0346da26f64d1df83341414632cc07b_JC.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\ba4e87b503573bc23a39337de023711bf0346da26f64d1df83341414632cc07b_JC.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\ba4e87b503573bc23a39337de023711bf0346da26f64d1df83341414632cc07b_JC.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\ba4e87b503573bc23a39337de023711bf0346da26f64d1df83341414632cc07b_JC.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\ba4e87b503573bc23a39337de023711bf0346da26f64d1df83341414632cc07b_JC.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\ba4e87b503573bc23a39337de023711bf0346da26f64d1df83341414632cc07b_JC.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\ba4e87b503573bc23a39337de023711bf0346da26f64d1df83341414632cc07b_JC.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\ba4e87b503573bc23a39337de023711bf0346da26f64d1df83341414632cc07b_JC.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\ba4e87b503573bc23a39337de023711bf0346da26f64d1df83341414632cc07b_JC.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\ba4e87b503573bc23a39337de023711bf0346da26f64d1df83341414632cc07b_JC.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\ba4e87b503573bc23a39337de023711bf0346da26f64d1df83341414632cc07b_JC.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\ba4e87b503573bc23a39337de023711bf0346da26f64d1df83341414632cc07b_JC.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\ba4e87b503573bc23a39337de023711bf0346da26f64d1df83341414632cc07b_JC.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\ba4e87b503573bc23a39337de023711bf0346da26f64d1df83341414632cc07b_JC.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\ba4e87b503573bc23a39337de023711bf0346da26f64d1df83341414632cc07b_JC.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\ba4e87b503573bc23a39337de023711bf0346da26f64d1df83341414632cc07b_JC.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\ba4e87b503573bc23a39337de023711bf0346da26f64d1df83341414632cc07b_JC.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\ba4e87b503573bc23a39337de023711bf0346da26f64d1df83341414632cc07b_JC.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\ba4e87b503573bc23a39337de023711bf0346da26f64d1df83341414632cc07b_JC.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\ba4e87b503573bc23a39337de023711bf0346da26f64d1df83341414632cc07b_JC.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\ba4e87b503573bc23a39337de023711bf0346da26f64d1df83341414632cc07b_JC.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\ba4e87b503573bc23a39337de023711bf0346da26f64d1df83341414632cc07b_JC.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\ba4e87b503573bc23a39337de023711bf0346da26f64d1df83341414632cc07b_JC.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\ba4e87b503573bc23a39337de023711bf0346da26f64d1df83341414632cc07b_JC.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\ba4e87b503573bc23a39337de023711bf0346da26f64d1df83341414632cc07b_JC.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\ba4e87b503573bc23a39337de023711bf0346da26f64d1df83341414632cc07b_JC.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\ba4e87b503573bc23a39337de023711bf0346da26f64d1df83341414632cc07b_JC.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\ba4e87b503573bc23a39337de023711bf0346da26f64d1df83341414632cc07b_JC.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\ba4e87b503573bc23a39337de023711bf0346da26f64d1df83341414632cc07b_JC.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\ba4e87b503573bc23a39337de023711bf0346da26f64d1df83341414632cc07b_JC.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\ba4e87b503573bc23a39337de023711bf0346da26f64d1df83341414632cc07b_JC.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\ba4e87b503573bc23a39337de023711bf0346da26f64d1df83341414632cc07b_JC.exe

"C:\Users\Admin\AppData\Local\Temp\ba4e87b503573bc23a39337de023711bf0346da26f64d1df83341414632cc07b_JC.exe"

Network

Country Destination Domain Proto
US 8.8.8.8:53 2.136.104.51.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 74.32.126.40.in-addr.arpa udp
US 8.8.8.8:53 fortuna777.duckdns.org udp
SE 46.246.14.10:1994 fortuna777.duckdns.org tcp
US 8.8.8.8:53 183.59.114.20.in-addr.arpa udp
SE 46.246.14.10:1994 fortuna777.duckdns.org tcp
US 8.8.8.8:53 18.31.95.13.in-addr.arpa udp
US 8.8.8.8:53 254.131.241.8.in-addr.arpa udp
SE 46.246.14.10:1994 fortuna777.duckdns.org tcp
US 8.8.8.8:53 fortuna777.duckdns.org udp
SE 46.246.84.11:1994 fortuna777.duckdns.org tcp
US 8.8.8.8:53 11.84.246.46.in-addr.arpa udp
US 8.8.8.8:53 45.8.109.52.in-addr.arpa udp
US 8.8.8.8:53 123.10.44.20.in-addr.arpa udp

Files

memory/5104-133-0x0000000075500000-0x0000000075AB1000-memory.dmp

memory/5104-134-0x0000000075500000-0x0000000075AB1000-memory.dmp

memory/5104-135-0x0000000001170000-0x0000000001180000-memory.dmp

memory/5104-136-0x0000000075500000-0x0000000075AB1000-memory.dmp

memory/5104-137-0x0000000075500000-0x0000000075AB1000-memory.dmp

memory/5104-138-0x0000000001170000-0x0000000001180000-memory.dmp