Malware Analysis Report

2024-12-07 03:30

Sample ID 241113-csj9batpdy
Target 4599a9128ac5671a5e3ac44778542f3e67969e1c6f5021279329bf0e45085c62.exe
SHA256 4599a9128ac5671a5e3ac44778542f3e67969e1c6f5021279329bf0e45085c62
Tags
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

4599a9128ac5671a5e3ac44778542f3e67969e1c6f5021279329bf0e45085c62

Threat Level: Known bad

The file 4599a9128ac5671a5e3ac44778542f3e67969e1c6f5021279329bf0e45085c62.exe was found to be: Known bad.

Malicious Activity Summary

remcos remotehost discovery rat

Remcos family

Remcos

AutoIT Executable

Suspicious use of SetThreadContext

Unsigned PE

System Location Discovery: System Language Discovery

Suspicious use of WriteProcessMemory

Suspicious behavior: MapViewOfSection

Suspicious use of FindShellTrayWindow

Suspicious use of SendNotifyMessage

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-11-13 02:20

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

2024-11-13 02:20

Reported

2024-11-13 02:22

Platform

win7-20240903-en

Max time kernel

148s

Max time network

123s

Command Line

"C:\Users\Admin\AppData\Local\Temp\4599a9128ac5671a5e3ac44778542f3e67969e1c6f5021279329bf0e45085c62.exe"

Signatures

Remcos

rat remcos

Remcos family

remcos

Suspicious use of SetThreadContext

Description Indicator Process Target
PID 2348 set thread context of 3056 N/A C:\Users\Admin\AppData\Local\Temp\4599a9128ac5671a5e3ac44778542f3e67969e1c6f5021279329bf0e45085c62.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\4599a9128ac5671a5e3ac44778542f3e67969e1c6f5021279329bf0e45085c62.exe N/A

Suspicious behavior: MapViewOfSection

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\4599a9128ac5671a5e3ac44778542f3e67969e1c6f5021279329bf0e45085c62.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\4599a9128ac5671a5e3ac44778542f3e67969e1c6f5021279329bf0e45085c62.exe

"C:\Users\Admin\AppData\Local\Temp\4599a9128ac5671a5e3ac44778542f3e67969e1c6f5021279329bf0e45085c62.exe"

C:\Windows\SysWOW64\svchost.exe

"C:\Users\Admin\AppData\Local\Temp\4599a9128ac5671a5e3ac44778542f3e67969e1c6f5021279329bf0e45085c62.exe"

Network

Country Destination Domain Proto
US 154.216.17.14:2404 tcp
US 154.216.17.14:2404 tcp
US 154.216.17.14:2404 tcp

Files

memory/2348-2-0x0000000002B20000-0x0000000002C20000-memory.dmp

memory/3056-3-0x0000000000400000-0x0000000000482000-memory.dmp

memory/3056-5-0x0000000000400000-0x0000000000482000-memory.dmp

memory/3056-6-0x0000000000400000-0x0000000000482000-memory.dmp

memory/3056-8-0x0000000000400000-0x0000000000482000-memory.dmp

memory/3056-7-0x0000000000400000-0x0000000000482000-memory.dmp

memory/3056-9-0x0000000000400000-0x0000000000482000-memory.dmp

memory/3056-10-0x0000000000400000-0x0000000000482000-memory.dmp

memory/3056-11-0x0000000000400000-0x0000000000482000-memory.dmp

memory/3056-12-0x0000000000400000-0x0000000000482000-memory.dmp

memory/3056-13-0x0000000000400000-0x0000000000482000-memory.dmp

memory/3056-14-0x0000000000400000-0x0000000000482000-memory.dmp

memory/3056-15-0x0000000000400000-0x0000000000482000-memory.dmp

memory/3056-16-0x0000000000400000-0x0000000000482000-memory.dmp

memory/3056-17-0x0000000000400000-0x0000000000482000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-11-13 02:20

Reported

2024-11-13 02:22

Platform

win10v2004-20241007-en

Max time kernel

149s

Max time network

150s

Command Line

"C:\Users\Admin\AppData\Local\Temp\4599a9128ac5671a5e3ac44778542f3e67969e1c6f5021279329bf0e45085c62.exe"

Signatures

Remcos

rat remcos

Remcos family

remcos

Suspicious use of SetThreadContext

Description Indicator Process Target
PID 4920 set thread context of 4224 N/A C:\Users\Admin\AppData\Local\Temp\4599a9128ac5671a5e3ac44778542f3e67969e1c6f5021279329bf0e45085c62.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\4599a9128ac5671a5e3ac44778542f3e67969e1c6f5021279329bf0e45085c62.exe N/A

Suspicious behavior: MapViewOfSection

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\4599a9128ac5671a5e3ac44778542f3e67969e1c6f5021279329bf0e45085c62.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\4599a9128ac5671a5e3ac44778542f3e67969e1c6f5021279329bf0e45085c62.exe

"C:\Users\Admin\AppData\Local\Temp\4599a9128ac5671a5e3ac44778542f3e67969e1c6f5021279329bf0e45085c62.exe"

C:\Windows\SysWOW64\svchost.exe

"C:\Users\Admin\AppData\Local\Temp\4599a9128ac5671a5e3ac44778542f3e67969e1c6f5021279329bf0e45085c62.exe"

Network

Country Destination Domain Proto
US 8.8.8.8:53 97.17.167.52.in-addr.arpa udp
US 8.8.8.8:53 88.210.23.2.in-addr.arpa udp
US 154.216.17.14:2404 tcp
US 8.8.8.8:53 68.159.190.20.in-addr.arpa udp
US 8.8.8.8:53 14.17.216.154.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 133.211.185.52.in-addr.arpa udp
US 8.8.8.8:53 209.205.72.20.in-addr.arpa udp
US 8.8.8.8:53 53.210.109.20.in-addr.arpa udp
US 8.8.8.8:53 241.42.69.40.in-addr.arpa udp
US 8.8.8.8:53 98.117.19.2.in-addr.arpa udp
US 154.216.17.14:2404 tcp
US 8.8.8.8:53 98.208.201.84.in-addr.arpa udp
US 8.8.8.8:53 83.210.23.2.in-addr.arpa udp
US 8.8.8.8:53 48.229.111.52.in-addr.arpa udp
US 154.216.17.14:2404 tcp
US 8.8.8.8:53 7.173.189.20.in-addr.arpa udp

Files

memory/4920-2-0x0000000003A90000-0x0000000003B90000-memory.dmp

memory/4224-3-0x0000000000400000-0x0000000000482000-memory.dmp

memory/4224-4-0x0000000000400000-0x0000000000482000-memory.dmp

memory/4224-5-0x0000000000400000-0x0000000000482000-memory.dmp

memory/4224-6-0x0000000000400000-0x0000000000482000-memory.dmp

memory/4224-7-0x0000000000400000-0x0000000000482000-memory.dmp

memory/4224-8-0x0000000000400000-0x0000000000482000-memory.dmp

memory/4224-9-0x0000000000400000-0x0000000000482000-memory.dmp

memory/4224-10-0x0000000000400000-0x0000000000482000-memory.dmp

memory/4224-11-0x0000000000400000-0x0000000000482000-memory.dmp

memory/4224-12-0x0000000000400000-0x0000000000482000-memory.dmp

memory/4224-13-0x0000000000400000-0x0000000000482000-memory.dmp

memory/4224-15-0x0000000000400000-0x0000000000482000-memory.dmp

memory/4224-14-0x0000000000400000-0x0000000000482000-memory.dmp

memory/4224-16-0x0000000000400000-0x0000000000482000-memory.dmp

memory/4224-17-0x0000000000400000-0x0000000000482000-memory.dmp