Malware Analysis Report

2025-01-02 03:28

Sample ID 240724-njv51axbkb
Target Quotation.exe
SHA256 38e861d71b9182f040db8d503b709b57f1b73ba9cfa64abffbf57fa49457b6d0
Tags
remcos zip 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

38e861d71b9182f040db8d503b709b57f1b73ba9cfa64abffbf57fa49457b6d0

Threat Level: Known bad

The file Quotation.exe was found to be: Known bad.

Malicious Activity Summary

remcos zip discovery rat

Remcos

Suspicious use of SetThreadContext

Unsigned PE

System Location Discovery: System Language Discovery

Suspicious use of WriteProcessMemory

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-07-24 11:26

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-07-24 11:26

Reported

2024-07-24 11:28

Platform

win7-20240705-en

Max time kernel

148s

Max time network

142s

Command Line

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

Signatures

Remcos

rat remcos

Suspicious use of SetThreadContext

Description Indicator Process Target
PID 2952 set thread context of 1860 N/A C:\Users\Admin\AppData\Local\Temp\Quotation.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\jsc.exe

System Location Discovery: System Language Discovery

discovery
Description Indicator Process Target
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Windows\Microsoft.NET\Framework\v4.0.30319\jsc.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 2952 wrote to memory of 1856 N/A C:\Users\Admin\AppData\Local\Temp\Quotation.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\regsvcs.exe
PID 2952 wrote to memory of 1856 N/A C:\Users\Admin\AppData\Local\Temp\Quotation.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\regsvcs.exe
PID 2952 wrote to memory of 1856 N/A C:\Users\Admin\AppData\Local\Temp\Quotation.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\regsvcs.exe
PID 2952 wrote to memory of 1856 N/A C:\Users\Admin\AppData\Local\Temp\Quotation.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\regsvcs.exe
PID 2952 wrote to memory of 1856 N/A C:\Users\Admin\AppData\Local\Temp\Quotation.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\regsvcs.exe
PID 2952 wrote to memory of 1856 N/A C:\Users\Admin\AppData\Local\Temp\Quotation.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\regsvcs.exe
PID 2952 wrote to memory of 1856 N/A C:\Users\Admin\AppData\Local\Temp\Quotation.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\regsvcs.exe
PID 2952 wrote to memory of 1856 N/A C:\Users\Admin\AppData\Local\Temp\Quotation.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\regsvcs.exe
PID 2952 wrote to memory of 2304 N/A C:\Users\Admin\AppData\Local\Temp\Quotation.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\msbuild.exe
PID 2952 wrote to memory of 2304 N/A C:\Users\Admin\AppData\Local\Temp\Quotation.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\msbuild.exe
PID 2952 wrote to memory of 2304 N/A C:\Users\Admin\AppData\Local\Temp\Quotation.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\msbuild.exe
PID 2952 wrote to memory of 2304 N/A C:\Users\Admin\AppData\Local\Temp\Quotation.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\msbuild.exe
PID 2952 wrote to memory of 2304 N/A C:\Users\Admin\AppData\Local\Temp\Quotation.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\msbuild.exe
PID 2952 wrote to memory of 2264 N/A C:\Users\Admin\AppData\Local\Temp\Quotation.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\installutil.exe
PID 2952 wrote to memory of 2264 N/A C:\Users\Admin\AppData\Local\Temp\Quotation.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\installutil.exe
PID 2952 wrote to memory of 2264 N/A C:\Users\Admin\AppData\Local\Temp\Quotation.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\installutil.exe
PID 2952 wrote to memory of 2264 N/A C:\Users\Admin\AppData\Local\Temp\Quotation.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\installutil.exe
PID 2952 wrote to memory of 2264 N/A C:\Users\Admin\AppData\Local\Temp\Quotation.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\installutil.exe
PID 2952 wrote to memory of 2264 N/A C:\Users\Admin\AppData\Local\Temp\Quotation.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\installutil.exe
PID 2952 wrote to memory of 2264 N/A C:\Users\Admin\AppData\Local\Temp\Quotation.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\installutil.exe
PID 2952 wrote to memory of 2264 N/A C:\Users\Admin\AppData\Local\Temp\Quotation.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\installutil.exe
PID 2952 wrote to memory of 1860 N/A C:\Users\Admin\AppData\Local\Temp\Quotation.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\jsc.exe
PID 2952 wrote to memory of 1860 N/A C:\Users\Admin\AppData\Local\Temp\Quotation.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\jsc.exe
PID 2952 wrote to memory of 1860 N/A C:\Users\Admin\AppData\Local\Temp\Quotation.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\jsc.exe
PID 2952 wrote to memory of 1860 N/A C:\Users\Admin\AppData\Local\Temp\Quotation.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\jsc.exe
PID 2952 wrote to memory of 1860 N/A C:\Users\Admin\AppData\Local\Temp\Quotation.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\jsc.exe
PID 2952 wrote to memory of 1860 N/A C:\Users\Admin\AppData\Local\Temp\Quotation.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\jsc.exe
PID 2952 wrote to memory of 1860 N/A C:\Users\Admin\AppData\Local\Temp\Quotation.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\jsc.exe
PID 2952 wrote to memory of 1860 N/A C:\Users\Admin\AppData\Local\Temp\Quotation.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\jsc.exe
PID 2952 wrote to memory of 1860 N/A C:\Users\Admin\AppData\Local\Temp\Quotation.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\jsc.exe
PID 2952 wrote to memory of 1860 N/A C:\Users\Admin\AppData\Local\Temp\Quotation.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\jsc.exe
PID 2952 wrote to memory of 1860 N/A C:\Users\Admin\AppData\Local\Temp\Quotation.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\jsc.exe
PID 2952 wrote to memory of 1860 N/A C:\Users\Admin\AppData\Local\Temp\Quotation.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\jsc.exe
PID 2952 wrote to memory of 1860 N/A C:\Users\Admin\AppData\Local\Temp\Quotation.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\jsc.exe

Processes

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

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

C:\Windows\Microsoft.NET\Framework\v4.0.30319\regsvcs.exe

"C:\Windows\Microsoft.NET\Framework\v4.0.30319\regsvcs.exe"

C:\Windows\Microsoft.NET\Framework\v4.0.30319\msbuild.exe

"C:\Windows\Microsoft.NET\Framework\v4.0.30319\msbuild.exe"

C:\Windows\Microsoft.NET\Framework\v4.0.30319\installutil.exe

"C:\Windows\Microsoft.NET\Framework\v4.0.30319\installutil.exe"

C:\Windows\Microsoft.NET\Framework\v4.0.30319\jsc.exe

"C:\Windows\Microsoft.NET\Framework\v4.0.30319\jsc.exe"

Network

Country Destination Domain Proto
US 8.8.8.8:53 vegetachcnc.com udp
US 107.173.4.18:2556 vegetachcnc.com tcp
US 8.8.8.8:53 geoplugin.net udp
NL 178.237.33.50:80 geoplugin.net tcp

Files

memory/1860-0-0x0000000000400000-0x0000000000482000-memory.dmp

memory/1860-2-0x0000000000400000-0x0000000000482000-memory.dmp

memory/1860-3-0x0000000000400000-0x0000000000482000-memory.dmp

memory/1860-4-0x0000000000400000-0x0000000000482000-memory.dmp

memory/1860-5-0x0000000000400000-0x0000000000482000-memory.dmp

memory/1860-6-0x0000000000400000-0x0000000000482000-memory.dmp

memory/1860-7-0x0000000000400000-0x0000000000482000-memory.dmp

memory/1860-8-0x0000000000400000-0x0000000000482000-memory.dmp

memory/1860-11-0x0000000000400000-0x0000000000482000-memory.dmp

memory/1860-12-0x0000000000400000-0x0000000000482000-memory.dmp

memory/1860-13-0x0000000000400000-0x0000000000482000-memory.dmp

memory/1860-14-0x0000000000400000-0x0000000000482000-memory.dmp

memory/1860-16-0x0000000000400000-0x0000000000482000-memory.dmp

memory/1860-17-0x0000000000400000-0x0000000000482000-memory.dmp

memory/1860-18-0x0000000000400000-0x0000000000482000-memory.dmp

memory/1860-19-0x0000000000400000-0x0000000000482000-memory.dmp

memory/1860-20-0x0000000000400000-0x0000000000482000-memory.dmp

memory/1860-21-0x0000000000400000-0x0000000000482000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-07-24 11:26

Reported

2024-07-24 11:28

Platform

win10v2004-20240709-en

Max time kernel

149s

Max time network

151s

Command Line

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

Signatures

Remcos

rat remcos

Suspicious use of SetThreadContext

Description Indicator Process Target
PID 3944 set thread context of 3664 N/A C:\Users\Admin\AppData\Local\Temp\Quotation.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\regasm.exe

System Location Discovery: System Language Discovery

discovery
Description Indicator Process Target
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Windows\Microsoft.NET\Framework\v4.0.30319\regasm.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 3944 wrote to memory of 3664 N/A C:\Users\Admin\AppData\Local\Temp\Quotation.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\regasm.exe
PID 3944 wrote to memory of 3664 N/A C:\Users\Admin\AppData\Local\Temp\Quotation.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\regasm.exe
PID 3944 wrote to memory of 3664 N/A C:\Users\Admin\AppData\Local\Temp\Quotation.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\regasm.exe
PID 3944 wrote to memory of 3664 N/A C:\Users\Admin\AppData\Local\Temp\Quotation.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\regasm.exe
PID 3944 wrote to memory of 3664 N/A C:\Users\Admin\AppData\Local\Temp\Quotation.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\regasm.exe
PID 3944 wrote to memory of 3664 N/A C:\Users\Admin\AppData\Local\Temp\Quotation.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\regasm.exe
PID 3944 wrote to memory of 3664 N/A C:\Users\Admin\AppData\Local\Temp\Quotation.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\regasm.exe
PID 3944 wrote to memory of 3664 N/A C:\Users\Admin\AppData\Local\Temp\Quotation.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\regasm.exe
PID 3944 wrote to memory of 3664 N/A C:\Users\Admin\AppData\Local\Temp\Quotation.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\regasm.exe
PID 3944 wrote to memory of 3664 N/A C:\Users\Admin\AppData\Local\Temp\Quotation.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\regasm.exe
PID 3944 wrote to memory of 3664 N/A C:\Users\Admin\AppData\Local\Temp\Quotation.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\regasm.exe
PID 3944 wrote to memory of 3664 N/A C:\Users\Admin\AppData\Local\Temp\Quotation.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\regasm.exe

Processes

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

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

C:\Windows\Microsoft.NET\Framework\v4.0.30319\regasm.exe

"C:\Windows\Microsoft.NET\Framework\v4.0.30319\regasm.exe"

Network

Country Destination Domain Proto
US 8.8.8.8:53 vegetachcnc.com udp
US 8.8.8.8:53 71.31.126.40.in-addr.arpa udp
US 107.173.4.18:2556 vegetachcnc.com tcp
US 8.8.8.8:53 73.144.22.2.in-addr.arpa udp
US 8.8.8.8:53 183.142.211.20.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 55.36.223.20.in-addr.arpa udp
US 8.8.8.8:53 18.4.173.107.in-addr.arpa udp
US 8.8.8.8:53 50.33.237.178.in-addr.arpa udp
US 8.8.8.8:53 58.55.71.13.in-addr.arpa udp
US 8.8.8.8:53 209.205.72.20.in-addr.arpa udp
US 8.8.8.8:53 103.169.127.40.in-addr.arpa udp
US 8.8.8.8:53 56.126.166.20.in-addr.arpa udp
US 8.8.8.8:53 172.214.232.199.in-addr.arpa udp
US 8.8.8.8:53 101.58.20.217.in-addr.arpa udp
US 8.8.8.8:53 43.229.111.52.in-addr.arpa udp

Files

memory/3664-0-0x0000000000400000-0x0000000000482000-memory.dmp

memory/3664-1-0x0000000000400000-0x0000000000482000-memory.dmp

memory/3664-2-0x0000000000400000-0x0000000000482000-memory.dmp

memory/3664-4-0x0000000000400000-0x0000000000482000-memory.dmp

memory/3664-5-0x0000000000400000-0x0000000000482000-memory.dmp

memory/3664-6-0x0000000000400000-0x0000000000482000-memory.dmp

memory/3664-7-0x0000000000400000-0x0000000000482000-memory.dmp

memory/3664-8-0x0000000000400000-0x0000000000482000-memory.dmp

memory/3664-9-0x0000000000400000-0x0000000000482000-memory.dmp

memory/3664-12-0x0000000000400000-0x0000000000482000-memory.dmp

memory/3664-13-0x0000000000400000-0x0000000000482000-memory.dmp

memory/3664-14-0x0000000000400000-0x0000000000482000-memory.dmp

memory/3664-15-0x0000000000400000-0x0000000000482000-memory.dmp

memory/3664-16-0x0000000000400000-0x0000000000482000-memory.dmp

memory/3664-17-0x0000000000400000-0x0000000000482000-memory.dmp

memory/3664-19-0x0000000000400000-0x0000000000482000-memory.dmp

memory/3664-18-0x0000000000400000-0x0000000000482000-memory.dmp

memory/3664-20-0x0000000000400000-0x0000000000482000-memory.dmp

memory/3664-21-0x0000000000400000-0x0000000000482000-memory.dmp