Malware Analysis Report

2025-06-16 06:49

Sample ID 221010-vhd9esceh4
Target cbc4c00395ee3d24d1f5a1dd64cfb0b74648f0371a0665287dd8108181e7668b.zip
SHA256 f3a196c1a71bbcb30d6aa8dcb01b4fb60c49446b6b704b821281e38ac31227e9
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

f3a196c1a71bbcb30d6aa8dcb01b4fb60c49446b6b704b821281e38ac31227e9

Threat Level: Known bad

The file cbc4c00395ee3d24d1f5a1dd64cfb0b74648f0371a0665287dd8108181e7668b.zip was found to be: Known bad.

Malicious Activity Summary

nyan cat njrat

Njrat family

Suspicious use of AdjustPrivilegeToken

MITRE ATT&CK

N/A

Analysis: static1

Detonation Overview

Reported

2022-10-10 16:59

Signatures

Njrat family

njrat

Analysis: behavioral1

Detonation Overview

Submitted

2022-10-10 16:59

Reported

2022-10-10 17:01

Platform

win7-20220812-en

Max time kernel

143s

Max time network

138s

Command Line

"C:\Users\Admin\AppData\Local\Temp\cbc4c00395ee3d24d1f5a1dd64cfb0b74648f0371a0665287dd8108181e7668b.exe"

Signatures

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Local\Temp\cbc4c00395ee3d24d1f5a1dd64cfb0b74648f0371a0665287dd8108181e7668b.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\cbc4c00395ee3d24d1f5a1dd64cfb0b74648f0371a0665287dd8108181e7668b.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\cbc4c00395ee3d24d1f5a1dd64cfb0b74648f0371a0665287dd8108181e7668b.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\cbc4c00395ee3d24d1f5a1dd64cfb0b74648f0371a0665287dd8108181e7668b.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\cbc4c00395ee3d24d1f5a1dd64cfb0b74648f0371a0665287dd8108181e7668b.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\cbc4c00395ee3d24d1f5a1dd64cfb0b74648f0371a0665287dd8108181e7668b.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\cbc4c00395ee3d24d1f5a1dd64cfb0b74648f0371a0665287dd8108181e7668b.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\cbc4c00395ee3d24d1f5a1dd64cfb0b74648f0371a0665287dd8108181e7668b.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\cbc4c00395ee3d24d1f5a1dd64cfb0b74648f0371a0665287dd8108181e7668b.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\cbc4c00395ee3d24d1f5a1dd64cfb0b74648f0371a0665287dd8108181e7668b.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\cbc4c00395ee3d24d1f5a1dd64cfb0b74648f0371a0665287dd8108181e7668b.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\cbc4c00395ee3d24d1f5a1dd64cfb0b74648f0371a0665287dd8108181e7668b.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\cbc4c00395ee3d24d1f5a1dd64cfb0b74648f0371a0665287dd8108181e7668b.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\cbc4c00395ee3d24d1f5a1dd64cfb0b74648f0371a0665287dd8108181e7668b.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\cbc4c00395ee3d24d1f5a1dd64cfb0b74648f0371a0665287dd8108181e7668b.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\cbc4c00395ee3d24d1f5a1dd64cfb0b74648f0371a0665287dd8108181e7668b.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\cbc4c00395ee3d24d1f5a1dd64cfb0b74648f0371a0665287dd8108181e7668b.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\cbc4c00395ee3d24d1f5a1dd64cfb0b74648f0371a0665287dd8108181e7668b.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\cbc4c00395ee3d24d1f5a1dd64cfb0b74648f0371a0665287dd8108181e7668b.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\cbc4c00395ee3d24d1f5a1dd64cfb0b74648f0371a0665287dd8108181e7668b.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\cbc4c00395ee3d24d1f5a1dd64cfb0b74648f0371a0665287dd8108181e7668b.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\cbc4c00395ee3d24d1f5a1dd64cfb0b74648f0371a0665287dd8108181e7668b.exe

"C:\Users\Admin\AppData\Local\Temp\cbc4c00395ee3d24d1f5a1dd64cfb0b74648f0371a0665287dd8108181e7668b.exe"

Network

Country Destination Domain Proto
US 8.8.8.8:53 nyas22.duckdns.org udp
US 64.44.167.136:57831 nyas22.duckdns.org tcp
US 64.44.167.136:57831 nyas22.duckdns.org tcp

Files

memory/1896-54-0x0000000075201000-0x0000000075203000-memory.dmp

memory/1896-55-0x0000000074740000-0x0000000074CEB000-memory.dmp

memory/1896-56-0x0000000074740000-0x0000000074CEB000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2022-10-10 16:59

Reported

2022-10-10 17:01

Platform

win10v2004-20220812-en

Max time kernel

143s

Max time network

145s

Command Line

"C:\Users\Admin\AppData\Local\Temp\cbc4c00395ee3d24d1f5a1dd64cfb0b74648f0371a0665287dd8108181e7668b.exe"

Signatures

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Local\Temp\cbc4c00395ee3d24d1f5a1dd64cfb0b74648f0371a0665287dd8108181e7668b.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\cbc4c00395ee3d24d1f5a1dd64cfb0b74648f0371a0665287dd8108181e7668b.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\cbc4c00395ee3d24d1f5a1dd64cfb0b74648f0371a0665287dd8108181e7668b.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\cbc4c00395ee3d24d1f5a1dd64cfb0b74648f0371a0665287dd8108181e7668b.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\cbc4c00395ee3d24d1f5a1dd64cfb0b74648f0371a0665287dd8108181e7668b.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\cbc4c00395ee3d24d1f5a1dd64cfb0b74648f0371a0665287dd8108181e7668b.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\cbc4c00395ee3d24d1f5a1dd64cfb0b74648f0371a0665287dd8108181e7668b.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\cbc4c00395ee3d24d1f5a1dd64cfb0b74648f0371a0665287dd8108181e7668b.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\cbc4c00395ee3d24d1f5a1dd64cfb0b74648f0371a0665287dd8108181e7668b.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\cbc4c00395ee3d24d1f5a1dd64cfb0b74648f0371a0665287dd8108181e7668b.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\cbc4c00395ee3d24d1f5a1dd64cfb0b74648f0371a0665287dd8108181e7668b.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\cbc4c00395ee3d24d1f5a1dd64cfb0b74648f0371a0665287dd8108181e7668b.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\cbc4c00395ee3d24d1f5a1dd64cfb0b74648f0371a0665287dd8108181e7668b.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\cbc4c00395ee3d24d1f5a1dd64cfb0b74648f0371a0665287dd8108181e7668b.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\cbc4c00395ee3d24d1f5a1dd64cfb0b74648f0371a0665287dd8108181e7668b.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\cbc4c00395ee3d24d1f5a1dd64cfb0b74648f0371a0665287dd8108181e7668b.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\cbc4c00395ee3d24d1f5a1dd64cfb0b74648f0371a0665287dd8108181e7668b.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\cbc4c00395ee3d24d1f5a1dd64cfb0b74648f0371a0665287dd8108181e7668b.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\cbc4c00395ee3d24d1f5a1dd64cfb0b74648f0371a0665287dd8108181e7668b.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\cbc4c00395ee3d24d1f5a1dd64cfb0b74648f0371a0665287dd8108181e7668b.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\cbc4c00395ee3d24d1f5a1dd64cfb0b74648f0371a0665287dd8108181e7668b.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\cbc4c00395ee3d24d1f5a1dd64cfb0b74648f0371a0665287dd8108181e7668b.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\cbc4c00395ee3d24d1f5a1dd64cfb0b74648f0371a0665287dd8108181e7668b.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\cbc4c00395ee3d24d1f5a1dd64cfb0b74648f0371a0665287dd8108181e7668b.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\cbc4c00395ee3d24d1f5a1dd64cfb0b74648f0371a0665287dd8108181e7668b.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\cbc4c00395ee3d24d1f5a1dd64cfb0b74648f0371a0665287dd8108181e7668b.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\cbc4c00395ee3d24d1f5a1dd64cfb0b74648f0371a0665287dd8108181e7668b.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\cbc4c00395ee3d24d1f5a1dd64cfb0b74648f0371a0665287dd8108181e7668b.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\cbc4c00395ee3d24d1f5a1dd64cfb0b74648f0371a0665287dd8108181e7668b.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\cbc4c00395ee3d24d1f5a1dd64cfb0b74648f0371a0665287dd8108181e7668b.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\cbc4c00395ee3d24d1f5a1dd64cfb0b74648f0371a0665287dd8108181e7668b.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\cbc4c00395ee3d24d1f5a1dd64cfb0b74648f0371a0665287dd8108181e7668b.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\cbc4c00395ee3d24d1f5a1dd64cfb0b74648f0371a0665287dd8108181e7668b.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\cbc4c00395ee3d24d1f5a1dd64cfb0b74648f0371a0665287dd8108181e7668b.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\cbc4c00395ee3d24d1f5a1dd64cfb0b74648f0371a0665287dd8108181e7668b.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\cbc4c00395ee3d24d1f5a1dd64cfb0b74648f0371a0665287dd8108181e7668b.exe

"C:\Users\Admin\AppData\Local\Temp\cbc4c00395ee3d24d1f5a1dd64cfb0b74648f0371a0665287dd8108181e7668b.exe"

Network

Country Destination Domain Proto
US 93.184.220.29:80 tcp
US 8.8.8.8:53 nyas22.duckdns.org udp
US 64.44.167.136:57831 nyas22.duckdns.org tcp
NL 13.69.109.130:443 tcp
NL 104.80.225.205:443 tcp
US 209.197.3.8:80 tcp
US 209.197.3.8:80 tcp

Files

memory/4512-132-0x0000000074B90000-0x0000000075141000-memory.dmp

memory/4512-133-0x0000000074B90000-0x0000000075141000-memory.dmp