Malware Analysis Report

2024-12-07 22:22

Sample ID 240809-p5dzaa1bkp
Target 391ac1ceedd3c960f32890f834a86ba1570ee5a0cc12dcef1714d43bb29fc457.exe
SHA256 391ac1ceedd3c960f32890f834a86ba1570ee5a0cc12dcef1714d43bb29fc457
Tags
upx 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

391ac1ceedd3c960f32890f834a86ba1570ee5a0cc12dcef1714d43bb29fc457

Threat Level: Known bad

The file 391ac1ceedd3c960f32890f834a86ba1570ee5a0cc12dcef1714d43bb29fc457.exe was found to be: Known bad.

Malicious Activity Summary

upx remcos remotehost discovery rat

Remcos

UPX packed file

AutoIT Executable

Suspicious use of SetThreadContext

Unsigned PE

System Location Discovery: System Language Discovery

Suspicious behavior: MapViewOfSection

Suspicious use of WriteProcessMemory

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-08-09 12:54

Signatures

UPX packed file

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

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
N/A N/A N/A N/A

Analysis: behavioral1

Detonation Overview

Submitted

2024-08-09 12:54

Reported

2024-08-09 12:56

Platform

win7-20240705-en

Max time kernel

148s

Max time network

142s

Command Line

"C:\Users\Admin\AppData\Local\Temp\391ac1ceedd3c960f32890f834a86ba1570ee5a0cc12dcef1714d43bb29fc457.exe"

Signatures

Remcos

rat remcos

UPX packed file

upx
Description Indicator Process Target
N/A N/A N/A N/A
N/A N/A N/A 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 2548 set thread context of 2136 N/A C:\Users\Admin\AppData\Local\Temp\391ac1ceedd3c960f32890f834a86ba1570ee5a0cc12dcef1714d43bb29fc457.exe C:\Windows\SysWOW64\svchost.exe

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\391ac1ceedd3c960f32890f834a86ba1570ee5a0cc12dcef1714d43bb29fc457.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Windows\SysWOW64\svchost.exe N/A

Suspicious behavior: MapViewOfSection

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\391ac1ceedd3c960f32890f834a86ba1570ee5a0cc12dcef1714d43bb29fc457.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\391ac1ceedd3c960f32890f834a86ba1570ee5a0cc12dcef1714d43bb29fc457.exe

"C:\Users\Admin\AppData\Local\Temp\391ac1ceedd3c960f32890f834a86ba1570ee5a0cc12dcef1714d43bb29fc457.exe"

C:\Windows\SysWOW64\svchost.exe

"C:\Users\Admin\AppData\Local\Temp\391ac1ceedd3c960f32890f834a86ba1570ee5a0cc12dcef1714d43bb29fc457.exe"

Network

Country Destination Domain Proto
LT 194.169.175.190:2404 tcp
LT 194.169.175.190:2404 tcp
LT 194.169.175.190:2404 tcp
LT 194.169.175.190:2404 tcp
LT 194.169.175.190:2404 tcp
LT 194.169.175.190:2404 tcp
LT 194.169.175.190:2404 tcp

Files

memory/2548-0-0x0000000000CE0000-0x0000000000ECB000-memory.dmp

memory/2548-12-0x0000000000150000-0x0000000000154000-memory.dmp

memory/2136-13-0x0000000000400000-0x0000000000482000-memory.dmp

memory/2136-16-0x0000000000400000-0x0000000000482000-memory.dmp

memory/2136-15-0x0000000000400000-0x0000000000482000-memory.dmp

memory/2548-19-0x0000000000CE0000-0x0000000000ECB000-memory.dmp

memory/2136-18-0x0000000000400000-0x0000000000482000-memory.dmp

memory/2136-20-0x0000000000400000-0x0000000000482000-memory.dmp

memory/2136-21-0x0000000000400000-0x0000000000482000-memory.dmp

memory/2136-22-0x0000000000400000-0x0000000000482000-memory.dmp

memory/2136-23-0x0000000000400000-0x0000000000482000-memory.dmp

memory/2136-24-0x0000000000400000-0x0000000000482000-memory.dmp

memory/2136-25-0x0000000000400000-0x0000000000482000-memory.dmp

memory/2136-26-0x0000000000400000-0x0000000000482000-memory.dmp

memory/2136-27-0x0000000000400000-0x0000000000482000-memory.dmp

memory/2136-28-0x0000000000400000-0x0000000000482000-memory.dmp

memory/2136-29-0x0000000000400000-0x0000000000482000-memory.dmp

memory/2136-30-0x0000000000400000-0x0000000000482000-memory.dmp

memory/2136-31-0x0000000000400000-0x0000000000482000-memory.dmp

memory/2136-32-0x0000000000400000-0x0000000000482000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-08-09 12:54

Reported

2024-08-09 12:56

Platform

win10v2004-20240802-en

Max time kernel

148s

Max time network

150s

Command Line

"C:\Users\Admin\AppData\Local\Temp\391ac1ceedd3c960f32890f834a86ba1570ee5a0cc12dcef1714d43bb29fc457.exe"

Signatures

Remcos

rat remcos

UPX packed file

upx
Description Indicator Process Target
N/A N/A N/A N/A
N/A N/A N/A 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 3344 set thread context of 2012 N/A C:\Users\Admin\AppData\Local\Temp\391ac1ceedd3c960f32890f834a86ba1570ee5a0cc12dcef1714d43bb29fc457.exe C:\Windows\SysWOW64\svchost.exe

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\391ac1ceedd3c960f32890f834a86ba1570ee5a0cc12dcef1714d43bb29fc457.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Windows\SysWOW64\svchost.exe N/A

Suspicious behavior: MapViewOfSection

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\391ac1ceedd3c960f32890f834a86ba1570ee5a0cc12dcef1714d43bb29fc457.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\391ac1ceedd3c960f32890f834a86ba1570ee5a0cc12dcef1714d43bb29fc457.exe

"C:\Users\Admin\AppData\Local\Temp\391ac1ceedd3c960f32890f834a86ba1570ee5a0cc12dcef1714d43bb29fc457.exe"

C:\Windows\SysWOW64\svchost.exe

"C:\Users\Admin\AppData\Local\Temp\391ac1ceedd3c960f32890f834a86ba1570ee5a0cc12dcef1714d43bb29fc457.exe"

Network

Country Destination Domain Proto
LT 194.169.175.190:2404 tcp
US 8.8.8.8:53 19.53.126.40.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 43.58.199.20.in-addr.arpa udp
LT 194.169.175.190:2404 tcp
US 8.8.8.8:53 183.59.114.20.in-addr.arpa udp
US 8.8.8.8:53 15.164.165.52.in-addr.arpa udp
US 8.8.8.8:53 147.142.123.92.in-addr.arpa udp
LT 194.169.175.190:2404 tcp
US 8.8.8.8:53 73.144.22.2.in-addr.arpa udp
LT 194.169.175.190:2404 tcp
LT 194.169.175.190:2404 tcp
US 8.8.8.8:53 172.210.232.199.in-addr.arpa udp
LT 194.169.175.190:2404 tcp
LT 194.169.175.190:2404 tcp

Files

memory/3344-0-0x0000000000FE0000-0x00000000011CB000-memory.dmp

memory/3344-12-0x0000000000DB0000-0x0000000000DB4000-memory.dmp

memory/2012-13-0x0000000000400000-0x0000000000482000-memory.dmp

memory/2012-14-0x0000000000400000-0x0000000000482000-memory.dmp

memory/3344-16-0x0000000000FE0000-0x00000000011CB000-memory.dmp

memory/2012-17-0x0000000000400000-0x0000000000482000-memory.dmp

memory/2012-18-0x0000000000400000-0x0000000000482000-memory.dmp

memory/2012-19-0x0000000000400000-0x0000000000482000-memory.dmp

memory/2012-20-0x0000000000400000-0x0000000000482000-memory.dmp

memory/2012-21-0x0000000000400000-0x0000000000482000-memory.dmp

memory/2012-22-0x0000000000400000-0x0000000000482000-memory.dmp

memory/2012-23-0x0000000000400000-0x0000000000482000-memory.dmp

memory/2012-24-0x0000000000400000-0x0000000000482000-memory.dmp

memory/2012-25-0x0000000000400000-0x0000000000482000-memory.dmp

memory/2012-26-0x0000000000400000-0x0000000000482000-memory.dmp

memory/2012-27-0x0000000000400000-0x0000000000482000-memory.dmp

memory/2012-28-0x0000000000400000-0x0000000000482000-memory.dmp

memory/2012-29-0x0000000000400000-0x0000000000482000-memory.dmp

memory/2012-30-0x0000000000400000-0x0000000000482000-memory.dmp

memory/2012-31-0x0000000000400000-0x0000000000482000-memory.dmp

memory/2012-32-0x0000000000400000-0x0000000000482000-memory.dmp