Malware Analysis Report

2024-12-07 22:34

Sample ID 240720-snagba1hjl
Target 48f21c28de9fa584e101c2bce41bbe66740530d053a82fa5dd52146696613313
SHA256 48f21c28de9fa584e101c2bce41bbe66740530d053a82fa5dd52146696613313
Tags
remcos junio2024 persistence 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

48f21c28de9fa584e101c2bce41bbe66740530d053a82fa5dd52146696613313

Threat Level: Known bad

The file 48f21c28de9fa584e101c2bce41bbe66740530d053a82fa5dd52146696613313 was found to be: Known bad.

Malicious Activity Summary

remcos junio2024 persistence rat

Remcos

Adds Run key to start application

Unsigned PE

Suspicious use of SetWindowsHookEx

Suspicious use of WriteProcessMemory

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-07-20 15:16

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-07-20 15:15

Reported

2024-07-20 15:19

Platform

win7-20240705-en

Max time kernel

122s

Max time network

124s

Command Line

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

Signatures

N/A

Processes

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

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

Network

N/A

Files

memory/3016-1-0x0000000000407000-0x0000000000421000-memory.dmp

memory/3016-0-0x0000000000400000-0x00000000009AD000-memory.dmp

memory/3016-3-0x000000000092B000-0x0000000000936000-memory.dmp

memory/3016-9-0x0000000000945000-0x0000000000986000-memory.dmp

memory/3016-8-0x0000000000940000-0x0000000000945000-memory.dmp

memory/3016-7-0x000000000093D000-0x0000000000945000-memory.dmp

memory/3016-6-0x0000000000938000-0x000000000093C000-memory.dmp

memory/3016-5-0x0000000000935000-0x000000000093C000-memory.dmp

memory/3016-4-0x000000000092E000-0x0000000000936000-memory.dmp

memory/3016-2-0x0000000000400000-0x00000000009AD000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-07-20 15:15

Reported

2024-07-20 15:19

Platform

win10v2004-20240709-en

Max time kernel

153s

Max time network

156s

Command Line

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

Signatures

Remcos

rat remcos

Adds Run key to start application

persistence
Description Indicator Process Target
Set value (str) \REGISTRY\USER\S-1-5-21-2636447293-1148739154-93880854-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\nooooo = "C:\\Users\\Admin\\Documents\\MOTOTOTO\\OTOTjU.exe" C:\Users\Admin\AppData\Local\Temp\OTOTjU.exe N/A

Suspicious use of SetWindowsHookEx

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

Processes

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

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

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

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

Network

Country Destination Domain Proto
US 8.8.8.8:53 g.bing.com udp
US 13.107.21.237:443 g.bing.com tcp
US 8.8.8.8:53 8.8.8.8.in-addr.arpa udp
US 8.8.8.8:53 13.86.106.20.in-addr.arpa udp
US 8.8.8.8:53 237.21.107.13.in-addr.arpa udp
US 8.8.8.8:53 14.160.190.20.in-addr.arpa udp
US 8.8.8.8:53 172.214.232.199.in-addr.arpa udp
US 8.8.8.8:53 43.58.199.20.in-addr.arpa udp
US 8.8.8.8:53 228.249.119.40.in-addr.arpa udp
US 8.8.8.8:53 hotsdefender.webredirect.org udp
UA 5.34.182.173:2404 hotsdefender.webredirect.org tcp
US 8.8.8.8:53 173.182.34.5.in-addr.arpa udp
US 8.8.8.8:53 geoplugin.net udp
NL 178.237.33.50:80 geoplugin.net tcp
US 8.8.8.8:53 50.33.237.178.in-addr.arpa udp
US 8.8.8.8:53 183.59.114.20.in-addr.arpa udp
US 8.8.8.8:53 206.23.85.13.in-addr.arpa udp
US 8.8.8.8:53 147.142.123.92.in-addr.arpa udp
US 8.8.8.8:53 tse1.mm.bing.net udp
US 150.171.28.10:443 tse1.mm.bing.net tcp
US 150.171.28.10:443 tse1.mm.bing.net tcp
US 150.171.28.10:443 tse1.mm.bing.net tcp
US 150.171.28.10:443 tse1.mm.bing.net tcp
US 150.171.28.10:443 tse1.mm.bing.net tcp
US 8.8.8.8:53 26.35.223.20.in-addr.arpa udp
US 8.8.8.8:53 172.210.232.199.in-addr.arpa udp
US 8.8.8.8:53 11.179.89.13.in-addr.arpa udp

Files

memory/936-0-0x0000000000400000-0x00000000009AD000-memory.dmp

memory/936-1-0x0000000000400000-0x00000000009AD000-memory.dmp

memory/936-2-0x0000000000407000-0x0000000000421000-memory.dmp

memory/936-3-0x0000000000400000-0x00000000009AD000-memory.dmp

memory/3316-4-0x00000000000C0000-0x0000000000142000-memory.dmp

memory/3316-5-0x00000000000C0000-0x0000000000142000-memory.dmp

memory/3316-6-0x00000000000C0000-0x0000000000142000-memory.dmp

memory/936-11-0x0000000000400000-0x00000000009AD000-memory.dmp

memory/3316-12-0x0000000000400000-0x00000000009AD000-memory.dmp

memory/3316-10-0x00000000000C0000-0x0000000000142000-memory.dmp

memory/3316-7-0x00000000000C0000-0x0000000000142000-memory.dmp

memory/3316-13-0x00000000000C0000-0x0000000000142000-memory.dmp

memory/3316-15-0x00000000000C0000-0x0000000000142000-memory.dmp

memory/3316-14-0x00000000000C0000-0x0000000000142000-memory.dmp

memory/3316-16-0x00000000000C0000-0x0000000000142000-memory.dmp

memory/3316-18-0x00000000000C0000-0x0000000000142000-memory.dmp

memory/3316-21-0x00000000000C0000-0x0000000000142000-memory.dmp

memory/3316-22-0x00000000000C0000-0x0000000000142000-memory.dmp

memory/3316-23-0x00000000000C0000-0x0000000000142000-memory.dmp

memory/3316-25-0x00000000000C0000-0x0000000000142000-memory.dmp

memory/3316-26-0x00000000000C0000-0x0000000000142000-memory.dmp

memory/3316-27-0x00000000000C0000-0x0000000000142000-memory.dmp

memory/3316-28-0x00000000000C0000-0x0000000000142000-memory.dmp