Malware Analysis Report

2025-06-16 01:18

Sample ID 231206-jqdr3scg48
Target 1701849064ac095385a07377f6231c4a5ab01f6070adb38d9da668aed499e0c987abb42523360.dat-decoded.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 1701849064ac095385a07377f6231c4a5ab01f6070adb38d9da668aed499e0c987abb42523360.dat-decoded.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

2023-12-06 07:52

Signatures

Remcos family

remcos

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2023-12-06 07:52

Reported

2023-12-06 07:54

Platform

win7-20231020-en

Max time kernel

148s

Max time network

145s

Command Line

"C:\Users\Admin\AppData\Local\Temp\1701849064ac095385a07377f6231c4a5ab01f6070adb38d9da668aed499e0c987abb42523360.dat-decoded.exe"

Signatures

Processes

C:\Users\Admin\AppData\Local\Temp\1701849064ac095385a07377f6231c4a5ab01f6070adb38d9da668aed499e0c987abb42523360.dat-decoded.exe

"C:\Users\Admin\AppData\Local\Temp\1701849064ac095385a07377f6231c4a5ab01f6070adb38d9da668aed499e0c987abb42523360.dat-decoded.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
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
US 8.8.8.8:53 remccoss2023.duckdns.org udp
CO 181.142.162.155:4576 remccoss2023.duckdns.org tcp

Files

C:\ProgramData\remcos\registros.dat

MD5 6e26ee2a13494f54cf064f065cabb92d
SHA1 fb9b3f074a0503307c2ad6eef5c4b5a1e84284e8
SHA256 18d259538a1b8e4d08484fd9e7027cf5b42eb9e93a5e39083a128e9a95d05420
SHA512 1016a4c4b2cb2af3b62c3677203b4ff8d9a8fe7bc0963f6c5741ee2c7f9e033505c2d1709dc268bc6e8804e504b78af885dc661e412b2ded7204af6fe763167e

Analysis: behavioral2

Detonation Overview

Submitted

2023-12-06 07:52

Reported

2023-12-06 07:54

Platform

win10v2004-20231127-en

Max time kernel

149s

Max time network

153s

Command Line

"C:\Users\Admin\AppData\Local\Temp\1701849064ac095385a07377f6231c4a5ab01f6070adb38d9da668aed499e0c987abb42523360.dat-decoded.exe"

Signatures

Processes

C:\Users\Admin\AppData\Local\Temp\1701849064ac095385a07377f6231c4a5ab01f6070adb38d9da668aed499e0c987abb42523360.dat-decoded.exe

"C:\Users\Admin\AppData\Local\Temp\1701849064ac095385a07377f6231c4a5ab01f6070adb38d9da668aed499e0c987abb42523360.dat-decoded.exe"

Network

Country Destination Domain Proto
US 8.8.8.8:53 59.128.231.4.in-addr.arpa udp
US 8.8.8.8:53 17.160.190.20.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 remccoss2023.duckdns.org udp
CO 181.142.162.155:4576 remccoss2023.duckdns.org tcp
US 8.8.8.8:53 241.154.82.20.in-addr.arpa udp
US 8.8.8.8:53 198.1.85.104.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 8.8.8.8:53 200.197.79.204.in-addr.arpa udp
US 8.8.8.8:53 103.169.127.40.in-addr.arpa udp
US 8.8.8.8:53 171.39.242.20.in-addr.arpa udp
US 8.8.8.8:53 135.1.85.104.in-addr.arpa udp
US 8.8.8.8:53 119.110.54.20.in-addr.arpa udp
US 8.8.8.8:53 208.194.73.20.in-addr.arpa udp
US 8.8.8.8:53 240.221.184.93.in-addr.arpa udp
US 8.8.8.8:53 24.175.53.84.in-addr.arpa udp
CO 181.142.162.155:4576 remccoss2023.duckdns.org tcp
US 8.8.8.8:53 42.175.53.84.in-addr.arpa udp
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
US 8.8.8.8:53 19.229.111.52.in-addr.arpa udp
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
US 8.8.8.8:53 11.173.189.20.in-addr.arpa udp

Files

C:\ProgramData\remcos\registros.dat

MD5 2e94950b06aca895835a65863c52f07a
SHA1 57dfe5ca893bc0b460e9ecf11c0894db8894bc81
SHA256 9572f65087a2d922cac52cc93a9b7707e88e74d855942448ac375b0b015eed60
SHA512 5864dd1a0291b4b17c52e9274feff555afc5e4617819c0aeb68613f5c400e0b90028a7b2ae3f2096d5dc24f2202940c745cf8f8b1d59757f39f4bd583a5e23e5