Malware Analysis Report

2025-04-13 23:42

Sample ID 230814-ywjb3sha5y
Target bOTj.exe
SHA256 d6ad84287643e005e6a53037fbddd106b224524ad2b6157eee6445942cb6a954
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

d6ad84287643e005e6a53037fbddd106b224524ad2b6157eee6445942cb6a954

Threat Level: Known bad

The file bOTj.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 20:08

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 20:08

Reported

2023-08-14 20:10

Platform

win7-20230712-en

Max time kernel

150s

Max time network

146s

Command Line

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

Signatures

Suspicious use of AdjustPrivilegeToken

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

Processes

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

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

Network

Country Destination Domain Proto
US 8.8.8.8:53 fortuna777.duckdns.org udp
SE 46.246.14.22:1994 fortuna777.duckdns.org tcp

Files

memory/2272-53-0x00000000741D0000-0x000000007477B000-memory.dmp

memory/2272-54-0x00000000741D0000-0x000000007477B000-memory.dmp

memory/2272-55-0x00000000009D0000-0x0000000000A10000-memory.dmp

memory/2272-56-0x00000000741D0000-0x000000007477B000-memory.dmp

memory/2272-57-0x00000000741D0000-0x000000007477B000-memory.dmp

memory/2272-58-0x00000000009D0000-0x0000000000A10000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2023-08-14 20:08

Reported

2023-08-14 20:10

Platform

win10v2004-20230703-en

Max time kernel

150s

Max time network

147s

Command Line

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

Signatures

Suspicious use of AdjustPrivilegeToken

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

Processes

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

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

Network

Country Destination Domain Proto
US 8.8.8.8:53 8.8.8.8.in-addr.arpa udp
US 8.8.8.8:53 126.135.241.8.in-addr.arpa udp
US 8.8.8.8:53 158.240.127.40.in-addr.arpa udp
US 8.8.8.8:53 67.31.126.40.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 46.246.14.22:1994 fortuna777.duckdns.org tcp
US 8.8.8.8:53 22.14.246.46.in-addr.arpa udp
US 8.8.8.8:53 146.78.124.51.in-addr.arpa udp
US 8.8.8.8:53 56.126.166.20.in-addr.arpa udp
US 8.8.8.8:53 43.229.111.52.in-addr.arpa udp
US 8.8.8.8:53 254.137.241.8.in-addr.arpa udp
US 8.8.8.8:53 24.73.42.20.in-addr.arpa udp

Files

memory/4756-133-0x0000000074710000-0x0000000074CC1000-memory.dmp

memory/4756-134-0x0000000074710000-0x0000000074CC1000-memory.dmp

memory/4756-135-0x0000000001500000-0x0000000001510000-memory.dmp

memory/4756-136-0x0000000074710000-0x0000000074CC1000-memory.dmp

memory/4756-137-0x0000000074710000-0x0000000074CC1000-memory.dmp