Malware Analysis Report

2025-06-16 01:16

Sample ID 231207-yhh46agd7y
Target 769e79005f9f65cf5eecc068fd142bec12879d45aae6c6f0404a079a12ef739aexe.exe
SHA256 769e79005f9f65cf5eecc068fd142bec12879d45aae6c6f0404a079a12ef739a
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: behavioral2

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis Overview

score
10/10

SHA256

769e79005f9f65cf5eecc068fd142bec12879d45aae6c6f0404a079a12ef739a

Threat Level: Known bad

The file 769e79005f9f65cf5eecc068fd142bec12879d45aae6c6f0404a079a12ef739aexe.exe was found to be: Known bad.

Malicious Activity Summary

remotehost remcos

Remcos family

Unsigned PE

Suspicious use of SetWindowsHookEx

MITRE ATT&CK

N/A

Analysis: static1

Detonation Overview

Reported

2023-12-07 19:47

Signatures

Remcos family

remcos

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2023-12-07 19:47

Reported

2023-12-07 19:49

Platform

win7-20231020-en

Max time kernel

149s

Max time network

153s

Command Line

"C:\Users\Admin\AppData\Local\Temp\769e79005f9f65cf5eecc068fd142bec12879d45aae6c6f0404a079a12ef739aexe.exe"

Signatures

Suspicious use of SetWindowsHookEx

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\769e79005f9f65cf5eecc068fd142bec12879d45aae6c6f0404a079a12ef739aexe.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\769e79005f9f65cf5eecc068fd142bec12879d45aae6c6f0404a079a12ef739aexe.exe

"C:\Users\Admin\AppData\Local\Temp\769e79005f9f65cf5eecc068fd142bec12879d45aae6c6f0404a079a12ef739aexe.exe"

Network

Country Destination Domain Proto
US 8.8.8.8:53 remccoss2023.duckdns.org udp
CO 181.142.162.155:4576 remccoss2023.duckdns.org tcp
CO 181.142.162.155:4576 remccoss2023.duckdns.org tcp
CO 181.142.162.155:4576 remccoss2023.duckdns.org tcp
CO 181.142.162.155:4576 remccoss2023.duckdns.org tcp
CO 181.142.162.155:4576 remccoss2023.duckdns.org tcp
CO 181.142.162.155:4576 remccoss2023.duckdns.org tcp
CO 181.142.162.155:4576 remccoss2023.duckdns.org tcp
CO 181.142.162.155:4576 remccoss2023.duckdns.org tcp
CO 181.142.162.155:4576 remccoss2023.duckdns.org tcp
CO 181.142.162.155:4576 remccoss2023.duckdns.org tcp
CO 181.142.162.155:4576 remccoss2023.duckdns.org tcp
CO 181.142.162.155:4576 remccoss2023.duckdns.org tcp
CO 181.142.162.155:4576 remccoss2023.duckdns.org tcp
CO 181.142.162.155:4576 remccoss2023.duckdns.org tcp
CO 181.142.162.155:4576 remccoss2023.duckdns.org tcp
CO 181.142.162.155:4576 remccoss2023.duckdns.org tcp
CO 181.142.162.155:4576 remccoss2023.duckdns.org tcp
CO 181.142.162.155:4576 remccoss2023.duckdns.org tcp
CO 181.142.162.155:4576 remccoss2023.duckdns.org tcp
CO 181.142.162.155:4576 remccoss2023.duckdns.org tcp
CO 181.142.162.155:4576 remccoss2023.duckdns.org tcp
CO 181.142.162.155:4576 remccoss2023.duckdns.org tcp
CO 181.142.162.155:4576 remccoss2023.duckdns.org tcp
CO 181.142.162.155:4576 remccoss2023.duckdns.org tcp
CO 181.142.162.155:4576 remccoss2023.duckdns.org tcp
CO 181.142.162.155:4576 remccoss2023.duckdns.org tcp
CO 181.142.162.155:4576 remccoss2023.duckdns.org tcp
CO 181.142.162.155:4576 remccoss2023.duckdns.org tcp
US 8.8.8.8:53 remccoss2023.duckdns.org udp
CO 181.142.162.155:4576 remccoss2023.duckdns.org tcp
CO 181.142.162.155:4576 remccoss2023.duckdns.org tcp
CO 181.142.162.155:4576 remccoss2023.duckdns.org tcp
CO 181.142.162.155:4576 remccoss2023.duckdns.org tcp
CO 181.142.162.155:4576 remccoss2023.duckdns.org tcp
CO 181.142.162.155:4576 remccoss2023.duckdns.org tcp
CO 181.142.162.155:4576 remccoss2023.duckdns.org tcp
CO 181.142.162.155:4576 remccoss2023.duckdns.org tcp
CO 181.142.162.155:4576 remccoss2023.duckdns.org tcp
CO 181.142.162.155:4576 remccoss2023.duckdns.org tcp
CO 181.142.162.155:4576 remccoss2023.duckdns.org tcp
CO 181.142.162.155:4576 remccoss2023.duckdns.org tcp
CO 181.142.162.155:4576 remccoss2023.duckdns.org tcp
CO 181.142.162.155:4576 remccoss2023.duckdns.org tcp
CO 181.142.162.155:4576 remccoss2023.duckdns.org tcp
CO 181.142.162.155:4576 remccoss2023.duckdns.org tcp
CO 181.142.162.155:4576 remccoss2023.duckdns.org tcp
CO 181.142.162.155:4576 remccoss2023.duckdns.org tcp
CO 181.142.162.155:4576 remccoss2023.duckdns.org tcp
CO 181.142.162.155:4576 remccoss2023.duckdns.org tcp
CO 181.142.162.155:4576 remccoss2023.duckdns.org tcp
CO 181.142.162.155:4576 remccoss2023.duckdns.org tcp
CO 181.142.162.155:4576 remccoss2023.duckdns.org tcp
CO 181.142.162.155:4576 remccoss2023.duckdns.org tcp
CO 181.142.162.155:4576 remccoss2023.duckdns.org tcp
CO 181.142.162.155:4576 remccoss2023.duckdns.org tcp
CO 181.142.162.155:4576 remccoss2023.duckdns.org tcp
CO 181.142.162.155:4576 remccoss2023.duckdns.org tcp
CO 181.142.162.155:4576 remccoss2023.duckdns.org tcp
CO 181.142.162.155:4576 remccoss2023.duckdns.org tcp
CO 181.142.162.155:4576 remccoss2023.duckdns.org tcp
CO 181.142.162.155:4576 remccoss2023.duckdns.org tcp
CO 181.142.162.155:4576 remccoss2023.duckdns.org tcp
CO 181.142.162.155:4576 remccoss2023.duckdns.org tcp
CO 181.142.162.155:4576 remccoss2023.duckdns.org tcp
CO 181.142.162.155:4576 remccoss2023.duckdns.org tcp
CO 181.142.162.155:4576 remccoss2023.duckdns.org tcp
CO 181.142.162.155:4576 remccoss2023.duckdns.org tcp
CO 181.142.162.155:4576 remccoss2023.duckdns.org tcp
CO 181.142.162.155:4576 remccoss2023.duckdns.org tcp
US 8.8.8.8:53 remccoss2023.duckdns.org udp
CO 181.142.162.155:4576 remccoss2023.duckdns.org tcp
CO 181.142.162.155:4576 remccoss2023.duckdns.org tcp
CO 181.142.162.155:4576 remccoss2023.duckdns.org tcp
CO 181.142.162.155:4576 remccoss2023.duckdns.org tcp
CO 181.142.162.155:4576 remccoss2023.duckdns.org tcp
CO 181.142.162.155:4576 remccoss2023.duckdns.org tcp
CO 181.142.162.155:4576 remccoss2023.duckdns.org tcp
CO 181.142.162.155:4576 remccoss2023.duckdns.org tcp
CO 181.142.162.155:4576 remccoss2023.duckdns.org tcp
CO 181.142.162.155:4576 remccoss2023.duckdns.org tcp
CO 181.142.162.155:4576 remccoss2023.duckdns.org tcp
CO 181.142.162.155:4576 remccoss2023.duckdns.org tcp
CO 181.142.162.155:4576 remccoss2023.duckdns.org tcp
CO 181.142.162.155:4576 remccoss2023.duckdns.org tcp
CO 181.142.162.155:4576 remccoss2023.duckdns.org tcp
CO 181.142.162.155:4576 remccoss2023.duckdns.org tcp
CO 181.142.162.155:4576 remccoss2023.duckdns.org tcp
CO 181.142.162.155:4576 remccoss2023.duckdns.org tcp
CO 181.142.162.155:4576 remccoss2023.duckdns.org tcp
CO 181.142.162.155:4576 remccoss2023.duckdns.org tcp
CO 181.142.162.155:4576 remccoss2023.duckdns.org tcp

Files

C:\ProgramData\remcos\registros.dat

MD5 977993990b4605114a3ddb8ad85b5bf4
SHA1 3dbaf67ac2d53ed207ff633ceac61810ee53e9fc
SHA256 494264f534fee88f4c9564011ba73c3926c8a35183ef47ee0429e6bececbebf2
SHA512 9f7d3e54acd9914017207daaa0acb88a76179f6443cdf38b7172d98eb9dc8f4e9c05411aac981feea9c59bf0fba239ba63fc05c1c63949fde35c86092d37bf1f

Analysis: behavioral2

Detonation Overview

Submitted

2023-12-07 19:47

Reported

2023-12-07 19:49

Platform

win10v2004-20231130-en

Max time kernel

148s

Max time network

149s

Command Line

"C:\Users\Admin\AppData\Local\Temp\769e79005f9f65cf5eecc068fd142bec12879d45aae6c6f0404a079a12ef739aexe.exe"

Signatures

Suspicious use of SetWindowsHookEx

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\769e79005f9f65cf5eecc068fd142bec12879d45aae6c6f0404a079a12ef739aexe.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\769e79005f9f65cf5eecc068fd142bec12879d45aae6c6f0404a079a12ef739aexe.exe

"C:\Users\Admin\AppData\Local\Temp\769e79005f9f65cf5eecc068fd142bec12879d45aae6c6f0404a079a12ef739aexe.exe"

Network

Country Destination Domain Proto
US 8.8.8.8:53 remccoss2023.duckdns.org udp
US 8.8.8.8:53 21.53.126.40.in-addr.arpa udp
US 8.8.8.8:53 205.178.17.96.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.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 8.8.8.8:53 9.228.82.20.in-addr.arpa udp
US 8.8.8.8:53 88.156.103.20.in-addr.arpa udp
US 8.8.8.8:53 200.197.79.204.in-addr.arpa udp
US 8.8.8.8:53 182.245.100.95.in-addr.arpa udp
CO 181.142.162.155:4576 remccoss2023.duckdns.org tcp
US 8.8.8.8:53 geoplugin.net udp
NL 178.237.33.50:80 geoplugin.net tcp
US 8.8.8.8:53 155.162.142.181.in-addr.arpa udp
US 8.8.8.8:53 50.33.237.178.in-addr.arpa udp
US 8.8.8.8:53 157.123.68.40.in-addr.arpa udp
US 8.8.8.8:53 15.164.165.52.in-addr.arpa udp
US 8.8.8.8:53 140.71.91.104.in-addr.arpa udp
US 8.8.8.8:53 43.58.199.20.in-addr.arpa udp
US 8.8.8.8:53 189.178.17.96.in-addr.arpa udp
US 8.8.8.8:53 14.227.111.52.in-addr.arpa udp
US 8.8.8.8:53 173.178.17.96.in-addr.arpa udp
US 8.8.8.8:53 63.141.182.52.in-addr.arpa udp

Files

C:\ProgramData\remcos\registros.dat

MD5 f68e86c4a6dbaea09e94a8c4e2469b37
SHA1 a60339efc1dcf42bb8c16d26cf389ff58d1f353a
SHA256 beb2804e182a5b44970e57315c9b27565db78149de50d88a491a930820014a5a
SHA512 bd01ce6fe8c1166642338aedd689a64755d3341c4818c4f68a594085d12e0ef1dbaed86826832d1e93e4687f3fc4f65e6a4ab8e7c058005f187499909a850580