Malware Analysis Report

2024-12-07 22:21

Sample ID 240807-q62x6ssfrb
Target CEC_Bon_de_plata.pdf.bat
SHA256 cb810150b6ce80f61a808726d5abfbf598239c2e8f260f83bc27d6be9488f45e
Tags
remcos remotehost discovery execution 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 Overview

score
10/10

SHA256

cb810150b6ce80f61a808726d5abfbf598239c2e8f260f83bc27d6be9488f45e

Threat Level: Known bad

The file CEC_Bon_de_plata.pdf.bat was found to be: Known bad.

Malicious Activity Summary

remcos remotehost discovery execution rat

Remcos

Command and Scripting Interpreter: PowerShell

Suspicious use of SetThreadContext

Enumerates physical storage devices

System Location Discovery: System Language Discovery

Suspicious behavior: EnumeratesProcesses

Suspicious use of AdjustPrivilegeToken

Suspicious use of WriteProcessMemory

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-08-07 13:53

Signatures

N/A

Analysis: behavioral1

Detonation Overview

Submitted

2024-08-07 13:53

Reported

2024-08-07 13:55

Platform

win7-20240708-en

Max time kernel

149s

Max time network

150s

Command Line

"C:\Users\Admin\AppData\Local\Temp\CEC_Bon_de_plata.pdf.exe"

Signatures

Remcos

rat remcos

Command and Scripting Interpreter: PowerShell

execution
Description Indicator Process Target
N/A N/A C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe N/A

Suspicious use of SetThreadContext

Description Indicator Process Target
PID 1984 set thread context of 1924 N/A C:\Users\Admin\AppData\Local\Temp\CEC_Bon_de_plata.pdf.exe C:\Users\Admin\AppData\Local\Temp\CEC_Bon_de_plata.pdf.exe

Enumerates physical storage devices

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\CEC_Bon_de_plata.pdf.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Users\Admin\AppData\Local\Temp\CEC_Bon_de_plata.pdf.exe N/A

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Local\Temp\CEC_Bon_de_plata.pdf.exe N/A
Token: SeDebugPrivilege N/A C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 1984 wrote to memory of 2740 N/A C:\Users\Admin\AppData\Local\Temp\CEC_Bon_de_plata.pdf.exe C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
PID 1984 wrote to memory of 2740 N/A C:\Users\Admin\AppData\Local\Temp\CEC_Bon_de_plata.pdf.exe C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
PID 1984 wrote to memory of 2740 N/A C:\Users\Admin\AppData\Local\Temp\CEC_Bon_de_plata.pdf.exe C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
PID 1984 wrote to memory of 2740 N/A C:\Users\Admin\AppData\Local\Temp\CEC_Bon_de_plata.pdf.exe C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
PID 1984 wrote to memory of 2640 N/A C:\Users\Admin\AppData\Local\Temp\CEC_Bon_de_plata.pdf.exe C:\Users\Admin\AppData\Local\Temp\CEC_Bon_de_plata.pdf.exe
PID 1984 wrote to memory of 2640 N/A C:\Users\Admin\AppData\Local\Temp\CEC_Bon_de_plata.pdf.exe C:\Users\Admin\AppData\Local\Temp\CEC_Bon_de_plata.pdf.exe
PID 1984 wrote to memory of 2640 N/A C:\Users\Admin\AppData\Local\Temp\CEC_Bon_de_plata.pdf.exe C:\Users\Admin\AppData\Local\Temp\CEC_Bon_de_plata.pdf.exe
PID 1984 wrote to memory of 2640 N/A C:\Users\Admin\AppData\Local\Temp\CEC_Bon_de_plata.pdf.exe C:\Users\Admin\AppData\Local\Temp\CEC_Bon_de_plata.pdf.exe
PID 1984 wrote to memory of 1924 N/A C:\Users\Admin\AppData\Local\Temp\CEC_Bon_de_plata.pdf.exe C:\Users\Admin\AppData\Local\Temp\CEC_Bon_de_plata.pdf.exe
PID 1984 wrote to memory of 1924 N/A C:\Users\Admin\AppData\Local\Temp\CEC_Bon_de_plata.pdf.exe C:\Users\Admin\AppData\Local\Temp\CEC_Bon_de_plata.pdf.exe
PID 1984 wrote to memory of 1924 N/A C:\Users\Admin\AppData\Local\Temp\CEC_Bon_de_plata.pdf.exe C:\Users\Admin\AppData\Local\Temp\CEC_Bon_de_plata.pdf.exe
PID 1984 wrote to memory of 1924 N/A C:\Users\Admin\AppData\Local\Temp\CEC_Bon_de_plata.pdf.exe C:\Users\Admin\AppData\Local\Temp\CEC_Bon_de_plata.pdf.exe
PID 1984 wrote to memory of 1924 N/A C:\Users\Admin\AppData\Local\Temp\CEC_Bon_de_plata.pdf.exe C:\Users\Admin\AppData\Local\Temp\CEC_Bon_de_plata.pdf.exe
PID 1984 wrote to memory of 1924 N/A C:\Users\Admin\AppData\Local\Temp\CEC_Bon_de_plata.pdf.exe C:\Users\Admin\AppData\Local\Temp\CEC_Bon_de_plata.pdf.exe
PID 1984 wrote to memory of 1924 N/A C:\Users\Admin\AppData\Local\Temp\CEC_Bon_de_plata.pdf.exe C:\Users\Admin\AppData\Local\Temp\CEC_Bon_de_plata.pdf.exe
PID 1984 wrote to memory of 1924 N/A C:\Users\Admin\AppData\Local\Temp\CEC_Bon_de_plata.pdf.exe C:\Users\Admin\AppData\Local\Temp\CEC_Bon_de_plata.pdf.exe
PID 1984 wrote to memory of 1924 N/A C:\Users\Admin\AppData\Local\Temp\CEC_Bon_de_plata.pdf.exe C:\Users\Admin\AppData\Local\Temp\CEC_Bon_de_plata.pdf.exe
PID 1984 wrote to memory of 1924 N/A C:\Users\Admin\AppData\Local\Temp\CEC_Bon_de_plata.pdf.exe C:\Users\Admin\AppData\Local\Temp\CEC_Bon_de_plata.pdf.exe
PID 1984 wrote to memory of 1924 N/A C:\Users\Admin\AppData\Local\Temp\CEC_Bon_de_plata.pdf.exe C:\Users\Admin\AppData\Local\Temp\CEC_Bon_de_plata.pdf.exe
PID 1984 wrote to memory of 1924 N/A C:\Users\Admin\AppData\Local\Temp\CEC_Bon_de_plata.pdf.exe C:\Users\Admin\AppData\Local\Temp\CEC_Bon_de_plata.pdf.exe
PID 1984 wrote to memory of 1924 N/A C:\Users\Admin\AppData\Local\Temp\CEC_Bon_de_plata.pdf.exe C:\Users\Admin\AppData\Local\Temp\CEC_Bon_de_plata.pdf.exe

Processes

C:\Users\Admin\AppData\Local\Temp\CEC_Bon_de_plata.pdf.exe

"C:\Users\Admin\AppData\Local\Temp\CEC_Bon_de_plata.pdf.exe"

C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe

"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Local\Temp\CEC_Bon_de_plata.pdf.exe"

C:\Users\Admin\AppData\Local\Temp\CEC_Bon_de_plata.pdf.exe

"C:\Users\Admin\AppData\Local\Temp\CEC_Bon_de_plata.pdf.exe"

C:\Users\Admin\AppData\Local\Temp\CEC_Bon_de_plata.pdf.exe

"C:\Users\Admin\AppData\Local\Temp\CEC_Bon_de_plata.pdf.exe"

Network

Country Destination Domain Proto
US 212.162.149.42:7118 tcp
US 8.8.8.8:53 geoplugin.net udp
NL 178.237.33.50:80 geoplugin.net tcp

Files

memory/1984-0-0x0000000074C4E000-0x0000000074C4F000-memory.dmp

memory/1984-1-0x0000000000190000-0x0000000000286000-memory.dmp

memory/1984-2-0x0000000074C40000-0x000000007532E000-memory.dmp

memory/1984-3-0x0000000000820000-0x0000000000830000-memory.dmp

memory/1984-4-0x0000000001F20000-0x0000000001F2E000-memory.dmp

memory/1984-5-0x0000000004F30000-0x0000000004FEE000-memory.dmp

memory/1924-6-0x0000000000400000-0x000000000047F000-memory.dmp

memory/1924-9-0x0000000000400000-0x000000000047F000-memory.dmp

memory/1924-8-0x0000000000400000-0x000000000047F000-memory.dmp

memory/1924-7-0x0000000000400000-0x000000000047F000-memory.dmp

memory/1924-12-0x0000000000400000-0x000000000047F000-memory.dmp

memory/1924-17-0x0000000000400000-0x000000000047F000-memory.dmp

memory/1924-15-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

memory/1924-19-0x0000000000400000-0x000000000047F000-memory.dmp

memory/1924-21-0x0000000000400000-0x000000000047F000-memory.dmp

memory/1924-20-0x0000000000400000-0x000000000047F000-memory.dmp

memory/1924-14-0x0000000000400000-0x000000000047F000-memory.dmp

memory/1924-13-0x0000000000400000-0x000000000047F000-memory.dmp

memory/1924-11-0x0000000000400000-0x000000000047F000-memory.dmp

memory/1984-24-0x0000000074C40000-0x000000007532E000-memory.dmp

memory/1924-25-0x0000000000400000-0x000000000047F000-memory.dmp

memory/1924-26-0x0000000000400000-0x000000000047F000-memory.dmp

memory/1924-27-0x0000000000400000-0x000000000047F000-memory.dmp

memory/1924-30-0x0000000000400000-0x000000000047F000-memory.dmp

memory/1924-31-0x0000000000400000-0x000000000047F000-memory.dmp

memory/1924-32-0x0000000000400000-0x000000000047F000-memory.dmp

memory/1924-33-0x0000000000400000-0x000000000047F000-memory.dmp

memory/1924-34-0x0000000000400000-0x000000000047F000-memory.dmp

memory/1924-35-0x0000000000400000-0x000000000047F000-memory.dmp

memory/1924-36-0x0000000000400000-0x000000000047F000-memory.dmp

memory/1924-37-0x0000000000400000-0x000000000047F000-memory.dmp