Malware Analysis Report

2025-01-02 03:17

Sample ID 240403-hxmswsah93
Target Quotation.PDF.gz
SHA256 192a4af0675a942cf3ab49f8b8ac7a6508b1c09fcb90d2003611b67485201b24
Tags
remcos remotehost rat
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

192a4af0675a942cf3ab49f8b8ac7a6508b1c09fcb90d2003611b67485201b24

Threat Level: Known bad

The file Quotation.PDF.gz was found to be: Known bad.

Malicious Activity Summary

remcos remotehost rat

Remcos

Loads dropped DLL

Drops startup file

Executes dropped EXE

Suspicious use of SetThreadContext

AutoIT Executable

Unsigned PE

Suspicious use of FindShellTrayWindow

Suspicious use of SendNotifyMessage

Suspicious behavior: MapViewOfSection

Suspicious use of WriteProcessMemory

MITRE ATT&CK

N/A

Analysis: static1

Detonation Overview

Reported

2024-04-03 07:07

Signatures

AutoIT Executable

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

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-04-03 07:07

Reported

2024-04-03 07:09

Platform

win7-20240221-en

Max time kernel

149s

Max time network

153s

Command Line

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

Signatures

Remcos

rat remcos

Drops startup file

Description Indicator Process Target
File created C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\chrome.vbs C:\Users\Admin\AppData\Local\directory\chrome.exe N/A

Executes dropped EXE

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

Loads dropped DLL

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

AutoIT Executable

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

Suspicious use of SetThreadContext

Description Indicator Process Target
PID 2188 set thread context of 2780 N/A C:\Users\Admin\AppData\Local\directory\chrome.exe C:\Windows\SysWOW64\svchost.exe

Suspicious behavior: MapViewOfSection

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

Processes

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

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

C:\Users\Admin\AppData\Local\directory\chrome.exe

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

C:\Windows\SysWOW64\svchost.exe

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

Network

Country Destination Domain Proto
US 8.8.8.8:53 shgoini.com udp
US 107.175.229.143:30902 shgoini.com tcp
US 8.8.8.8:53 geoplugin.net udp
NL 178.237.33.50:80 geoplugin.net tcp

Files

memory/2020-10-0x00000000005F0000-0x00000000005F4000-memory.dmp

\Users\Admin\AppData\Local\directory\chrome.exe

MD5 789790b0ef43ea44a3d7789d9bd9a21f
SHA1 51fafc03462ab5a5f3aa9878aa9c8ae99328e596
SHA256 3690027a8de79b5e5a5448c17e11c8b6bd203aa70e19ae68691c7346b6ad2b52
SHA512 a4d3b5b3fd5af1abf2907255db880438d00324470e9dab80405f132a4095ddfd6befe3b3604ab304b5690fb514782629b6ae035e0f111bb43a22bc76a01a48bd

C:\Users\Admin\AppData\Local\Temp\pyogenesis

MD5 5ed5fbdee0b73fbae50e27ac69ad7ae7
SHA1 283d4749e5729d7c5c3a51a6c15b1f7a47cf910f
SHA256 b049894d767c9e974b8e92f448acba5a2f86ed79dba36dbfffd2b9f2517e3881
SHA512 4034eda19cb86a9bb653210c9a746f4305f1c2b9656fa42dadadfb0fff119a09b73e9fa3d6656c7a73ba6e6cf267c0c56f55869c3c503ecccfd305d23ea0be8e

C:\Users\Admin\AppData\Local\Temp\ophiolatrous

MD5 d1f9c2f8115082d19910822ccc9e5c10
SHA1 2cb10976a5deb529dcc372015dbdb6d492bd86f6
SHA256 26fdc3781343a64e156175aafa9038d5a3751bf175401c371adaf3f7c3d1e88f
SHA512 5f56c64805e3ea031de93c7b8ecf3b286a646b2de8f0a827a1e7296526d8b357ce62817ec8b1d63bd893fdc33be1c2f456fbbc0521fea136d220439a6053f01d

memory/2780-30-0x0000000000400000-0x0000000000482000-memory.dmp

memory/2780-32-0x0000000000400000-0x0000000000482000-memory.dmp

memory/2780-33-0x0000000000400000-0x0000000000482000-memory.dmp

memory/2780-34-0x0000000000400000-0x0000000000482000-memory.dmp

memory/2780-35-0x0000000000400000-0x0000000000482000-memory.dmp

memory/2780-36-0x0000000000400000-0x0000000000482000-memory.dmp

memory/2780-37-0x0000000000400000-0x0000000000482000-memory.dmp

memory/2780-38-0x0000000000400000-0x0000000000482000-memory.dmp

memory/2780-40-0x0000000000400000-0x0000000000482000-memory.dmp

memory/2780-41-0x0000000000400000-0x0000000000482000-memory.dmp

memory/2780-42-0x0000000000400000-0x0000000000482000-memory.dmp

memory/2780-43-0x0000000000400000-0x0000000000482000-memory.dmp

memory/2780-44-0x0000000000400000-0x0000000000482000-memory.dmp

memory/2780-46-0x0000000000400000-0x0000000000482000-memory.dmp

memory/2780-47-0x0000000000400000-0x0000000000482000-memory.dmp

memory/2780-48-0x0000000000400000-0x0000000000482000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-04-03 07:07

Reported

2024-04-03 07:09

Platform

win10v2004-20240226-en

Max time kernel

148s

Max time network

149s

Command Line

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

Signatures

Suspicious use of FindShellTrayWindow

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

Suspicious use of SendNotifyMessage

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

Processes

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

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

Network

Country Destination Domain Proto
US 8.8.8.8:53 13.86.106.20.in-addr.arpa udp
US 8.8.8.8:53 172.210.232.199.in-addr.arpa udp
US 8.8.8.8:53 73.159.190.20.in-addr.arpa udp
US 8.8.8.8:53 209.205.72.20.in-addr.arpa udp
US 8.8.8.8:53 157.123.68.40.in-addr.arpa udp
US 8.8.8.8:53 56.126.166.20.in-addr.arpa udp
US 8.8.8.8:53 24.66.18.2.in-addr.arpa udp
US 8.8.8.8:53 202.110.86.104.in-addr.arpa udp
US 8.8.8.8:53 21.236.111.52.in-addr.arpa udp

Files

memory/3520-10-0x0000000001450000-0x0000000001454000-memory.dmp