Malware Analysis Report

2025-06-16 06:50

Sample ID 220823-amrp4afbbn
Target xhm4wgmcMRkP.exe
SHA256 4625b1f6546a9ead13f9cfde4bfa29c431d32b76dd5efd7bedbf1adebde07272
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

4625b1f6546a9ead13f9cfde4bfa29c431d32b76dd5efd7bedbf1adebde07272

Threat Level: Known bad

The file xhm4wgmcMRkP.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

2022-08-23 00:20

Signatures

Njrat family

njrat

Analysis: behavioral1

Detonation Overview

Submitted

2022-08-23 00:20

Reported

2022-08-23 00:22

Platform

win7-20220812-en

Max time kernel

145s

Max time network

145s

Command Line

"C:\Users\Admin\AppData\Local\Temp\xhm4wgmcMRkP.exe"

Signatures

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Local\Temp\xhm4wgmcMRkP.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\xhm4wgmcMRkP.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\xhm4wgmcMRkP.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\xhm4wgmcMRkP.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\xhm4wgmcMRkP.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\xhm4wgmcMRkP.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\xhm4wgmcMRkP.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\xhm4wgmcMRkP.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\xhm4wgmcMRkP.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\xhm4wgmcMRkP.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\xhm4wgmcMRkP.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\xhm4wgmcMRkP.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\xhm4wgmcMRkP.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\xhm4wgmcMRkP.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\xhm4wgmcMRkP.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\xhm4wgmcMRkP.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\xhm4wgmcMRkP.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\xhm4wgmcMRkP.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\xhm4wgmcMRkP.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\xhm4wgmcMRkP.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\xhm4wgmcMRkP.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\xhm4wgmcMRkP.exe

"C:\Users\Admin\AppData\Local\Temp\xhm4wgmcMRkP.exe"

Network

Country Destination Domain Proto
US 8.8.8.8:53 4Mekey.myftp.biz udp
US 198.23.212.148:2411 4Mekey.myftp.biz tcp

Files

memory/1348-54-0x00000000750A1000-0x00000000750A3000-memory.dmp

memory/1348-55-0x0000000074290000-0x000000007483B000-memory.dmp

memory/1348-56-0x0000000074290000-0x000000007483B000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2022-08-23 00:20

Reported

2022-08-23 00:22

Platform

win10v2004-20220812-en

Max time kernel

149s

Max time network

145s

Command Line

"C:\Users\Admin\AppData\Local\Temp\xhm4wgmcMRkP.exe"

Signatures

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Local\Temp\xhm4wgmcMRkP.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\xhm4wgmcMRkP.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\xhm4wgmcMRkP.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\xhm4wgmcMRkP.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\xhm4wgmcMRkP.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\xhm4wgmcMRkP.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\xhm4wgmcMRkP.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\xhm4wgmcMRkP.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\xhm4wgmcMRkP.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\xhm4wgmcMRkP.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\xhm4wgmcMRkP.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\xhm4wgmcMRkP.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\xhm4wgmcMRkP.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\xhm4wgmcMRkP.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\xhm4wgmcMRkP.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\xhm4wgmcMRkP.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\xhm4wgmcMRkP.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\xhm4wgmcMRkP.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\xhm4wgmcMRkP.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\xhm4wgmcMRkP.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\xhm4wgmcMRkP.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\xhm4wgmcMRkP.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\xhm4wgmcMRkP.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\xhm4wgmcMRkP.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\xhm4wgmcMRkP.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\xhm4wgmcMRkP.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\xhm4wgmcMRkP.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\xhm4wgmcMRkP.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\xhm4wgmcMRkP.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\xhm4wgmcMRkP.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\xhm4wgmcMRkP.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\xhm4wgmcMRkP.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\xhm4wgmcMRkP.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\xhm4wgmcMRkP.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\xhm4wgmcMRkP.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\xhm4wgmcMRkP.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\xhm4wgmcMRkP.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\xhm4wgmcMRkP.exe

"C:\Users\Admin\AppData\Local\Temp\xhm4wgmcMRkP.exe"

Network

Country Destination Domain Proto
US 8.253.208.120:80 tcp
US 8.8.8.8:53 4Mekey.myftp.biz udp
US 198.23.212.148:2411 4Mekey.myftp.biz tcp
IE 20.50.80.209:443 tcp
NL 104.80.225.205:443 tcp
US 8.253.208.120:80 tcp
US 8.253.208.120:80 tcp
US 8.253.208.120:80 tcp
US 8.253.208.113:80 tcp
US 8.253.208.113:80 tcp

Files

memory/5060-132-0x0000000074A80000-0x0000000075031000-memory.dmp

memory/5060-133-0x0000000074A80000-0x0000000075031000-memory.dmp