Malware Analysis Report

2025-06-16 06:50

Sample ID 220820-1mlryshafj
Target a995f654512c7d95ddb62ab82f260f60.exe
SHA256 0ef9750fc229e63524e488c690fcba909187c777f46a5c165b839a755c466b23
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

0ef9750fc229e63524e488c690fcba909187c777f46a5c165b839a755c466b23

Threat Level: Known bad

The file a995f654512c7d95ddb62ab82f260f60.exe 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

2022-08-20 21:46

Signatures

Njrat family

njrat

Analysis: behavioral1

Detonation Overview

Submitted

2022-08-20 21:46

Reported

2022-08-20 21:48

Platform

win7-20220812-en

Max time kernel

142s

Max time network

146s

Command Line

"C:\Users\Admin\AppData\Local\Temp\a995f654512c7d95ddb62ab82f260f60.exe"

Signatures

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Local\Temp\a995f654512c7d95ddb62ab82f260f60.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\a995f654512c7d95ddb62ab82f260f60.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\a995f654512c7d95ddb62ab82f260f60.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\a995f654512c7d95ddb62ab82f260f60.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\a995f654512c7d95ddb62ab82f260f60.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\a995f654512c7d95ddb62ab82f260f60.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\a995f654512c7d95ddb62ab82f260f60.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\a995f654512c7d95ddb62ab82f260f60.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\a995f654512c7d95ddb62ab82f260f60.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\a995f654512c7d95ddb62ab82f260f60.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\a995f654512c7d95ddb62ab82f260f60.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\a995f654512c7d95ddb62ab82f260f60.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\a995f654512c7d95ddb62ab82f260f60.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\a995f654512c7d95ddb62ab82f260f60.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\a995f654512c7d95ddb62ab82f260f60.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\a995f654512c7d95ddb62ab82f260f60.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\a995f654512c7d95ddb62ab82f260f60.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\a995f654512c7d95ddb62ab82f260f60.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\a995f654512c7d95ddb62ab82f260f60.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\a995f654512c7d95ddb62ab82f260f60.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\a995f654512c7d95ddb62ab82f260f60.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\a995f654512c7d95ddb62ab82f260f60.exe

"C:\Users\Admin\AppData\Local\Temp\a995f654512c7d95ddb62ab82f260f60.exe"

Network

Country Destination Domain Proto
US 8.8.8.8:53 isanachase.duckdns.org udp
CO 186.169.41.31:8080 isanachase.duckdns.org tcp

Files

memory/1176-54-0x00000000759E1000-0x00000000759E3000-memory.dmp

memory/1176-55-0x00000000740D0000-0x000000007467B000-memory.dmp

memory/1176-56-0x00000000740D0000-0x000000007467B000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2022-08-20 21:46

Reported

2022-08-20 21:48

Platform

win10v2004-20220812-en

Max time kernel

150s

Max time network

152s

Command Line

"C:\Users\Admin\AppData\Local\Temp\a995f654512c7d95ddb62ab82f260f60.exe"

Signatures

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Local\Temp\a995f654512c7d95ddb62ab82f260f60.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\a995f654512c7d95ddb62ab82f260f60.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\a995f654512c7d95ddb62ab82f260f60.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\a995f654512c7d95ddb62ab82f260f60.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\a995f654512c7d95ddb62ab82f260f60.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\a995f654512c7d95ddb62ab82f260f60.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\a995f654512c7d95ddb62ab82f260f60.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\a995f654512c7d95ddb62ab82f260f60.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\a995f654512c7d95ddb62ab82f260f60.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\a995f654512c7d95ddb62ab82f260f60.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\a995f654512c7d95ddb62ab82f260f60.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\a995f654512c7d95ddb62ab82f260f60.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\a995f654512c7d95ddb62ab82f260f60.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\a995f654512c7d95ddb62ab82f260f60.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\a995f654512c7d95ddb62ab82f260f60.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\a995f654512c7d95ddb62ab82f260f60.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\a995f654512c7d95ddb62ab82f260f60.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\a995f654512c7d95ddb62ab82f260f60.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\a995f654512c7d95ddb62ab82f260f60.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\a995f654512c7d95ddb62ab82f260f60.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\a995f654512c7d95ddb62ab82f260f60.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\a995f654512c7d95ddb62ab82f260f60.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\a995f654512c7d95ddb62ab82f260f60.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\a995f654512c7d95ddb62ab82f260f60.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\a995f654512c7d95ddb62ab82f260f60.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\a995f654512c7d95ddb62ab82f260f60.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\a995f654512c7d95ddb62ab82f260f60.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\a995f654512c7d95ddb62ab82f260f60.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\a995f654512c7d95ddb62ab82f260f60.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\a995f654512c7d95ddb62ab82f260f60.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\a995f654512c7d95ddb62ab82f260f60.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\a995f654512c7d95ddb62ab82f260f60.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\a995f654512c7d95ddb62ab82f260f60.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\a995f654512c7d95ddb62ab82f260f60.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\a995f654512c7d95ddb62ab82f260f60.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\a995f654512c7d95ddb62ab82f260f60.exe

"C:\Users\Admin\AppData\Local\Temp\a995f654512c7d95ddb62ab82f260f60.exe"

Network

Country Destination Domain Proto
US 8.238.20.126:80 tcp
US 8.8.8.8:53 isanachase.duckdns.org udp
CO 186.169.41.31:8080 isanachase.duckdns.org tcp
US 8.238.20.126:80 tcp
US 8.247.210.126:80 tcp
US 20.42.65.84:443 tcp
US 93.184.220.29:80 tcp
US 8.238.20.126:80 tcp
US 93.184.220.29:80 tcp
US 93.184.220.29:80 tcp
US 93.184.220.29:80 tcp
US 93.184.220.29:80 tcp

Files

memory/4036-132-0x0000000075420000-0x00000000759D1000-memory.dmp

memory/4036-133-0x0000000075420000-0x00000000759D1000-memory.dmp