Malware Analysis Report

2025-01-02 03:10

Sample ID 240815-2hnw7atcqj
Target 6afee9297b79284e33678518f3b97c01ed816e1c387ae7087bc6da29bc389a17
SHA256 6afee9297b79284e33678518f3b97c01ed816e1c387ae7087bc6da29bc389a17
Tags
remcos remotehost discovery rat
score
10/10

Table of Contents

Analysis Overview

MITRE ATT&CK

Enterprise Matrix V15

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

6afee9297b79284e33678518f3b97c01ed816e1c387ae7087bc6da29bc389a17

Threat Level: Known bad

The file 6afee9297b79284e33678518f3b97c01ed816e1c387ae7087bc6da29bc389a17 was found to be: Known bad.

Malicious Activity Summary

remcos remotehost discovery rat

Remcos

Unsigned PE

System Location Discovery: System Language Discovery

Suspicious use of SetWindowsHookEx

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-08-15 22:35

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-08-15 22:35

Reported

2024-08-15 22:40

Platform

win7-20240705-en

Max time kernel

298s

Max time network

298s

Command Line

"C:\Users\Admin\AppData\Local\Temp\6afee9297b79284e33678518f3b97c01ed816e1c387ae7087bc6da29bc389a17.exe"

Signatures

Remcos

rat remcos

System Location Discovery: System Language Discovery

discovery
Description Indicator Process Target
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Users\Admin\AppData\Local\Temp\6afee9297b79284e33678518f3b97c01ed816e1c387ae7087bc6da29bc389a17.exe N/A

Suspicious use of SetWindowsHookEx

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\6afee9297b79284e33678518f3b97c01ed816e1c387ae7087bc6da29bc389a17.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\6afee9297b79284e33678518f3b97c01ed816e1c387ae7087bc6da29bc389a17.exe

"C:\Users\Admin\AppData\Local\Temp\6afee9297b79284e33678518f3b97c01ed816e1c387ae7087bc6da29bc389a17.exe"

Network

Country Destination Domain Proto
N/A 127.0.0.1:59089 tcp
US 8.8.8.8:53 legacyrem.duckdns.org udp
MY 103.186.116.130:59089 legacyrem.duckdns.org tcp
N/A 127.0.0.1:59089 tcp
MY 103.186.116.130:59089 legacyrem.duckdns.org tcp
N/A 127.0.0.1:59089 tcp
MY 103.186.116.130:59089 legacyrem.duckdns.org tcp
N/A 127.0.0.1:59089 tcp
MY 103.186.116.130:59089 legacyrem.duckdns.org tcp
N/A 127.0.0.1:59089 tcp
MY 103.186.116.130:59089 legacyrem.duckdns.org tcp
N/A 127.0.0.1:59089 tcp
MY 103.186.116.130:59089 legacyrem.duckdns.org tcp
MY 103.186.116.130:59089 legacyrem.duckdns.org tcp
N/A 127.0.0.1:59089 tcp
MY 103.186.116.130:59089 legacyrem.duckdns.org tcp
N/A 127.0.0.1:59089 tcp
N/A 127.0.0.1:59089 tcp
US 8.8.8.8:53 legacyrem.duckdns.org udp
MY 103.186.116.130:59089 legacyrem.duckdns.org tcp
MY 103.186.116.130:59089 legacyrem.duckdns.org tcp
N/A 127.0.0.1:59089 tcp
N/A 127.0.0.1:59089 tcp
MY 103.186.116.130:59089 legacyrem.duckdns.org tcp
N/A 127.0.0.1:59089 tcp
MY 103.186.116.130:59089 legacyrem.duckdns.org tcp
N/A 127.0.0.1:59089 tcp
MY 103.186.116.130:59089 legacyrem.duckdns.org tcp
N/A 127.0.0.1:59089 tcp
MY 103.186.116.130:59089 legacyrem.duckdns.org tcp
MY 103.186.116.130:59089 legacyrem.duckdns.org tcp
N/A 127.0.0.1:59089 tcp
N/A 127.0.0.1:59089 tcp
US 8.8.8.8:53 legacyrem.duckdns.org udp
MY 103.186.116.130:59089 legacyrem.duckdns.org tcp
N/A 127.0.0.1:59089 tcp
MY 103.186.116.130:59089 legacyrem.duckdns.org tcp
US 8.8.8.8:53 legacyrem.duckdns.org udp
N/A 127.0.0.1:59089 tcp
MY 103.186.116.130:59089 legacyrem.duckdns.org tcp
N/A 127.0.0.1:59089 tcp
MY 103.186.116.130:59089 legacyrem.duckdns.org tcp
N/A 127.0.0.1:59089 tcp
MY 103.186.116.130:59089 legacyrem.duckdns.org tcp
MY 103.186.116.130:59089 legacyrem.duckdns.org tcp
N/A 127.0.0.1:59089 tcp
N/A 127.0.0.1:59089 tcp
MY 103.186.116.130:59089 legacyrem.duckdns.org tcp
N/A 127.0.0.1:59089 tcp
US 8.8.8.8:53 legacyrem.duckdns.org udp
MY 103.186.116.130:59089 legacyrem.duckdns.org tcp
N/A 127.0.0.1:59089 tcp
MY 103.186.116.130:59089 legacyrem.duckdns.org tcp
N/A 127.0.0.1:59089 tcp
MY 103.186.116.130:59089 legacyrem.duckdns.org tcp
N/A 127.0.0.1:59089 tcp
MY 103.186.116.130:59089 legacyrem.duckdns.org tcp
N/A 127.0.0.1:59089 tcp
MY 103.186.116.130:59089 legacyrem.duckdns.org tcp
N/A 127.0.0.1:59089 tcp
MY 103.186.116.130:59089 legacyrem.duckdns.org tcp
N/A 127.0.0.1:59089 tcp
US 8.8.8.8:53 legacyrem.duckdns.org udp
MY 103.186.116.130:59089 legacyrem.duckdns.org tcp
N/A 127.0.0.1:59089 tcp
MY 103.186.116.130:59089 legacyrem.duckdns.org tcp

Files

memory/1948-1-0x0000000000400000-0x0000000000482000-memory.dmp

memory/1948-0-0x0000000000590000-0x0000000000615000-memory.dmp

memory/1948-2-0x0000000000400000-0x0000000000482000-memory.dmp

memory/1948-6-0x0000000000400000-0x0000000000482000-memory.dmp

memory/1948-5-0x0000000000400000-0x0000000000482000-memory.dmp

memory/1948-7-0x0000000000400000-0x0000000000482000-memory.dmp

memory/1948-9-0x0000000000400000-0x0000000000482000-memory.dmp

memory/1948-10-0x0000000000400000-0x0000000000482000-memory.dmp

memory/1948-11-0x0000000000400000-0x0000000000482000-memory.dmp

memory/1948-12-0x0000000000400000-0x0000000000482000-memory.dmp

memory/1948-13-0x0000000000400000-0x0000000000482000-memory.dmp

memory/1948-15-0x0000000000590000-0x0000000000615000-memory.dmp

memory/1948-16-0x0000000000400000-0x0000000000482000-memory.dmp

memory/1948-17-0x0000000000400000-0x0000000000482000-memory.dmp

memory/1948-18-0x0000000000400000-0x0000000000482000-memory.dmp

memory/1948-19-0x0000000000400000-0x0000000000482000-memory.dmp

memory/1948-20-0x0000000000400000-0x0000000000482000-memory.dmp

memory/1948-21-0x0000000000400000-0x0000000000482000-memory.dmp

memory/1948-23-0x0000000000400000-0x0000000000482000-memory.dmp

memory/1948-25-0x0000000000400000-0x0000000000482000-memory.dmp

memory/1948-28-0x0000000000400000-0x0000000000482000-memory.dmp

memory/1948-29-0x0000000000400000-0x0000000000482000-memory.dmp

C:\ProgramData\remcos\logs.dat

MD5 935c049976f71c8c870127a2a214c0ea
SHA1 b588fe33e9a7806498434b38cfcbd9071d2cfcf7
SHA256 e1949a07ed6b17eb7f02f7a14336595fa0553a03433b653bcbb86c8035610c3d
SHA512 faccb8679031f15be3213696c728dd5fdcc1bef08e2e938a616519f473833baad5461ed04ea8680757a3e0bc56f7efdc8dd878c4ac1d0d06644f4963e76dea12

memory/1948-32-0x0000000000400000-0x0000000000482000-memory.dmp

memory/1948-33-0x0000000000400000-0x0000000000482000-memory.dmp

memory/1948-36-0x0000000000400000-0x0000000000482000-memory.dmp

memory/1948-38-0x0000000000400000-0x0000000000482000-memory.dmp

memory/1948-43-0x0000000000400000-0x0000000000482000-memory.dmp

memory/1948-44-0x0000000000400000-0x0000000000482000-memory.dmp

memory/1948-46-0x0000000000400000-0x0000000000482000-memory.dmp

memory/1948-49-0x0000000000400000-0x0000000000482000-memory.dmp

memory/1948-50-0x0000000000400000-0x0000000000482000-memory.dmp

memory/1948-52-0x0000000000400000-0x0000000000482000-memory.dmp

memory/1948-57-0x0000000000400000-0x0000000000482000-memory.dmp

memory/1948-58-0x0000000000400000-0x0000000000482000-memory.dmp

memory/1948-61-0x0000000000400000-0x0000000000482000-memory.dmp

memory/1948-64-0x0000000000400000-0x0000000000482000-memory.dmp

memory/1948-67-0x0000000000400000-0x0000000000482000-memory.dmp

memory/1948-69-0x0000000000400000-0x0000000000482000-memory.dmp

memory/1948-71-0x0000000000400000-0x0000000000482000-memory.dmp

memory/1948-72-0x0000000000400000-0x0000000000482000-memory.dmp

memory/1948-76-0x0000000000400000-0x0000000000482000-memory.dmp

memory/1948-77-0x0000000000400000-0x0000000000482000-memory.dmp

memory/1948-78-0x0000000000400000-0x0000000000482000-memory.dmp

memory/1948-80-0x0000000000400000-0x0000000000482000-memory.dmp

memory/1948-82-0x0000000000400000-0x0000000000482000-memory.dmp

memory/1948-83-0x0000000000400000-0x0000000000482000-memory.dmp

memory/1948-85-0x0000000000400000-0x0000000000482000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-08-15 22:35

Reported

2024-08-15 22:40

Platform

win10-20240404-en

Max time kernel

299s

Max time network

298s

Command Line

"C:\Users\Admin\AppData\Local\Temp\6afee9297b79284e33678518f3b97c01ed816e1c387ae7087bc6da29bc389a17.exe"

Signatures

Remcos

rat remcos

System Location Discovery: System Language Discovery

discovery
Description Indicator Process Target
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Users\Admin\AppData\Local\Temp\6afee9297b79284e33678518f3b97c01ed816e1c387ae7087bc6da29bc389a17.exe N/A

Suspicious use of SetWindowsHookEx

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\6afee9297b79284e33678518f3b97c01ed816e1c387ae7087bc6da29bc389a17.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\6afee9297b79284e33678518f3b97c01ed816e1c387ae7087bc6da29bc389a17.exe

"C:\Users\Admin\AppData\Local\Temp\6afee9297b79284e33678518f3b97c01ed816e1c387ae7087bc6da29bc389a17.exe"

Network

Country Destination Domain Proto
N/A 127.0.0.1:59089 tcp
US 8.8.8.8:53 legacyrem.duckdns.org udp
N/A 127.0.0.1:59089 tcp
US 8.8.8.8:53 legacyrem.duckdns.org udp
MY 103.186.116.130:59089 legacyrem.duckdns.org tcp
MY 103.186.116.130:59089 legacyrem.duckdns.org tcp
N/A 127.0.0.1:59089 tcp
N/A 127.0.0.1:59089 tcp
MY 103.186.116.130:59089 legacyrem.duckdns.org tcp
N/A 127.0.0.1:59089 tcp
MY 103.186.116.130:59089 legacyrem.duckdns.org tcp
N/A 127.0.0.1:59089 tcp
MY 103.186.116.130:59089 legacyrem.duckdns.org tcp
N/A 127.0.0.1:59089 tcp
MY 103.186.116.130:59089 legacyrem.duckdns.org tcp
N/A 127.0.0.1:59089 tcp
MY 103.186.116.130:59089 legacyrem.duckdns.org tcp
N/A 127.0.0.1:59089 tcp
MY 103.186.116.130:59089 legacyrem.duckdns.org tcp
US 52.111.227.11:443 tcp
N/A 127.0.0.1:59089 tcp
MY 103.186.116.130:59089 legacyrem.duckdns.org tcp
US 8.8.8.8:53 13.227.111.52.in-addr.arpa udp
N/A 127.0.0.1:59089 tcp
US 8.8.8.8:53 legacyrem.duckdns.org udp
MY 103.186.116.130:59089 legacyrem.duckdns.org tcp
N/A 127.0.0.1:59089 tcp
MY 103.186.116.130:59089 legacyrem.duckdns.org tcp
MY 103.186.116.130:59089 legacyrem.duckdns.org tcp
N/A 127.0.0.1:59089 tcp
N/A 127.0.0.1:59089 tcp
MY 103.186.116.130:59089 legacyrem.duckdns.org tcp
US 8.8.8.8:53 94.65.42.20.in-addr.arpa udp
US 8.8.8.8:53 172.214.232.199.in-addr.arpa udp
N/A 127.0.0.1:59089 tcp
MY 103.186.116.130:59089 legacyrem.duckdns.org tcp
US 8.8.8.8:53 legacyrem.duckdns.org udp
N/A 127.0.0.1:59089 tcp
MY 103.186.116.130:59089 legacyrem.duckdns.org tcp
N/A 127.0.0.1:59089 tcp
MY 103.186.116.130:59089 legacyrem.duckdns.org tcp
N/A 127.0.0.1:59089 tcp
MY 103.186.116.130:59089 legacyrem.duckdns.org tcp
MY 103.186.116.130:59089 legacyrem.duckdns.org tcp
N/A 127.0.0.1:59089 tcp
N/A 127.0.0.1:59089 tcp
MY 103.186.116.130:59089 legacyrem.duckdns.org tcp
N/A 127.0.0.1:59089 tcp
US 8.8.8.8:53 172.210.232.199.in-addr.arpa udp
US 8.8.8.8:53 legacyrem.duckdns.org udp
MY 103.186.116.130:59089 legacyrem.duckdns.org tcp
MY 103.186.116.130:59089 legacyrem.duckdns.org tcp
N/A 127.0.0.1:59089 tcp
N/A 127.0.0.1:59089 tcp
MY 103.186.116.130:59089 legacyrem.duckdns.org tcp
N/A 127.0.0.1:59089 tcp
MY 103.186.116.130:59089 legacyrem.duckdns.org tcp
N/A 127.0.0.1:59089 tcp
US 8.8.8.8:53 legacyrem.duckdns.org udp
MY 103.186.116.130:59089 legacyrem.duckdns.org tcp
US 8.8.8.8:53 57.110.18.2.in-addr.arpa udp

Files

memory/3668-0-0x0000000000590000-0x0000000000615000-memory.dmp

memory/3668-1-0x0000000000400000-0x0000000000482000-memory.dmp

memory/3668-2-0x0000000000400000-0x0000000000482000-memory.dmp

memory/3668-6-0x0000000000400000-0x0000000000482000-memory.dmp

memory/3668-5-0x0000000000400000-0x0000000000482000-memory.dmp

memory/3668-7-0x0000000000400000-0x0000000000482000-memory.dmp

memory/3668-9-0x0000000000400000-0x0000000000482000-memory.dmp

memory/3668-10-0x0000000000400000-0x0000000000482000-memory.dmp

memory/3668-12-0x0000000000590000-0x0000000000615000-memory.dmp

memory/3668-13-0x0000000000400000-0x0000000000482000-memory.dmp

C:\ProgramData\remcos\logs.dat

MD5 45124c4e3eabab0219624a71600550b0
SHA1 15f1e7b28969d6c403fcc85040c4e5052692871b
SHA256 b16fc804674deb43e7683c46d68c383beaeb7f1ab96221ec9dbb920dc6a22d99
SHA512 345d9d5d0320d1545c2e237199ea082ce4680f32daccf93bf042f91d60a88ef893e5faabf3190f7076d1af79f48606a4f80ea00a4c3802ab44893355ec03a11c

memory/3668-18-0x0000000000400000-0x0000000000482000-memory.dmp

memory/3668-19-0x0000000000400000-0x0000000000482000-memory.dmp

memory/3668-20-0x0000000000400000-0x0000000000482000-memory.dmp

memory/3668-21-0x0000000000400000-0x0000000000482000-memory.dmp

memory/3668-22-0x0000000000400000-0x0000000000482000-memory.dmp

memory/3668-25-0x0000000000400000-0x0000000000482000-memory.dmp

memory/3668-26-0x0000000000400000-0x0000000000482000-memory.dmp

memory/3668-27-0x0000000000400000-0x0000000000482000-memory.dmp

memory/3668-28-0x0000000000400000-0x0000000000482000-memory.dmp

memory/3668-29-0x0000000000400000-0x0000000000482000-memory.dmp

memory/3668-31-0x0000000000400000-0x0000000000482000-memory.dmp

memory/3668-32-0x0000000000400000-0x0000000000482000-memory.dmp

memory/3668-33-0x0000000000400000-0x0000000000482000-memory.dmp

memory/3668-34-0x0000000000400000-0x0000000000482000-memory.dmp

memory/3668-35-0x0000000000400000-0x0000000000482000-memory.dmp

memory/3668-36-0x0000000000400000-0x0000000000482000-memory.dmp

memory/3668-39-0x0000000000400000-0x0000000000482000-memory.dmp

memory/3668-40-0x0000000000400000-0x0000000000482000-memory.dmp

memory/3668-41-0x0000000000400000-0x0000000000482000-memory.dmp

memory/3668-42-0x0000000000400000-0x0000000000482000-memory.dmp

memory/3668-44-0x0000000000400000-0x0000000000482000-memory.dmp

memory/3668-47-0x0000000000400000-0x0000000000482000-memory.dmp

memory/3668-48-0x0000000000400000-0x0000000000482000-memory.dmp

memory/3668-49-0x0000000000400000-0x0000000000482000-memory.dmp

memory/3668-51-0x0000000000400000-0x0000000000482000-memory.dmp

memory/3668-52-0x0000000000400000-0x0000000000482000-memory.dmp

memory/3668-55-0x0000000000400000-0x0000000000482000-memory.dmp

memory/3668-56-0x0000000000400000-0x0000000000482000-memory.dmp

memory/3668-57-0x0000000000400000-0x0000000000482000-memory.dmp

memory/3668-59-0x0000000000400000-0x0000000000482000-memory.dmp

memory/3668-60-0x0000000000400000-0x0000000000482000-memory.dmp

memory/3668-61-0x0000000000400000-0x0000000000482000-memory.dmp

memory/3668-68-0x0000000000400000-0x0000000000482000-memory.dmp

memory/3668-69-0x0000000000400000-0x0000000000482000-memory.dmp

memory/3668-70-0x0000000000400000-0x0000000000482000-memory.dmp

memory/3668-71-0x0000000000400000-0x0000000000482000-memory.dmp

memory/3668-75-0x0000000000400000-0x0000000000482000-memory.dmp

memory/3668-76-0x0000000000400000-0x0000000000482000-memory.dmp

memory/3668-77-0x0000000000400000-0x0000000000482000-memory.dmp

memory/3668-78-0x0000000000400000-0x0000000000482000-memory.dmp

memory/3668-82-0x0000000000400000-0x0000000000482000-memory.dmp

memory/3668-83-0x0000000000400000-0x0000000000482000-memory.dmp

memory/3668-84-0x0000000000400000-0x0000000000482000-memory.dmp

memory/3668-85-0x0000000000400000-0x0000000000482000-memory.dmp