Malware Analysis Report

2025-01-02 03:19

Sample ID 240326-dx8cdace49
Target remcos_a.exe
SHA256 9ce03c9dc889b000432c6418cbd1e2e19c4e04a17657ab99ef7e10cdac38b861
Tags
remotehost remcos
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 Overview

score
10/10

SHA256

9ce03c9dc889b000432c6418cbd1e2e19c4e04a17657ab99ef7e10cdac38b861

Threat Level: Known bad

The file remcos_a.exe was found to be: Known bad.

Malicious Activity Summary

remotehost remcos

Remcos family

Unsigned PE

Suspicious use of FindShellTrayWindow

Suspicious use of SendNotifyMessage

MITRE ATT&CK

N/A

Analysis: static1

Detonation Overview

Reported

2024-03-26 03:24

Signatures

Remcos family

remcos

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-03-26 03:24

Reported

2024-03-26 03:25

Platform

win10v2004-20240226-en

Max time kernel

35s

Max time network

36s

Command Line

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

Signatures

Suspicious use of FindShellTrayWindow

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\remcos_a.exe N/A

Suspicious use of SendNotifyMessage

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\remcos_a.exe N/A

Processes

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

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

Network

Country Destination Domain Proto
N/A 192.168.66.1:6169 tcp
US 8.8.8.8:53 68.32.126.40.in-addr.arpa udp
US 8.8.8.8:53 g.bing.com udp
US 204.79.197.200:443 g.bing.com tcp
US 8.8.8.8:53 183.142.211.20.in-addr.arpa udp
US 8.8.8.8:53 240.221.184.93.in-addr.arpa udp
US 8.8.8.8:53 9.228.82.20.in-addr.arpa udp
US 8.8.8.8:53 200.197.79.204.in-addr.arpa udp
US 8.8.8.8:53 tse1.mm.bing.net udp
US 204.79.197.200:443 tse1.mm.bing.net tcp
US 204.79.197.200:443 tse1.mm.bing.net tcp
US 204.79.197.200:443 tse1.mm.bing.net tcp
US 204.79.197.200:443 tse1.mm.bing.net tcp
US 204.79.197.200:443 tse1.mm.bing.net tcp
US 8.8.8.8:53 55.36.223.20.in-addr.arpa udp
US 8.8.8.8:53 41.110.16.96.in-addr.arpa udp
US 20.231.121.79:80 tcp
US 8.8.8.8:53 149.220.183.52.in-addr.arpa udp
N/A 192.168.66.1:6169 tcp
US 8.8.8.8:53 86.23.85.13.in-addr.arpa udp
US 8.8.8.8:53 198.187.3.20.in-addr.arpa udp
US 8.8.8.8:53 217.135.221.88.in-addr.arpa udp

Files

N/A