Malware Analysis Report

2024-12-07 03:35

Sample ID 241113-g9sdgaxbnd
Target 4599a9128ac5671a5e3ac44778542f3e67969e1c6f5021279329bf0e45085c62
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 was found to be: Known bad.

Malicious Activity Summary

remcos remotehost discovery rat

Remcos family

Remcos

Suspicious use of SetThreadContext

AutoIT Executable

System Location Discovery: System Language Discovery

Unsigned PE

Suspicious use of WriteProcessMemory

Suspicious use of FindShellTrayWindow

Suspicious behavior: MapViewOfSection

Suspicious use of SendNotifyMessage

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-11-13 06:30

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 06:30

Reported

2024-11-13 06:33

Platform

win7-20241023-en

Max time kernel

148s

Max time network

139s

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 2536 set thread context of 2896 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/2536-2-0x00000000010B0000-0x00000000011B0000-memory.dmp

memory/2896-3-0x0000000000400000-0x0000000000482000-memory.dmp

memory/2896-5-0x0000000000400000-0x0000000000482000-memory.dmp

memory/2896-6-0x0000000000400000-0x0000000000482000-memory.dmp

memory/2896-8-0x0000000000400000-0x0000000000482000-memory.dmp

memory/2896-7-0x0000000000400000-0x0000000000482000-memory.dmp

memory/2896-9-0x0000000000400000-0x0000000000482000-memory.dmp

memory/2896-10-0x0000000000400000-0x0000000000482000-memory.dmp

memory/2896-11-0x0000000000400000-0x0000000000482000-memory.dmp

memory/2896-12-0x0000000000400000-0x0000000000482000-memory.dmp

memory/2896-13-0x0000000000400000-0x0000000000482000-memory.dmp

memory/2896-14-0x0000000000400000-0x0000000000482000-memory.dmp

memory/2896-15-0x0000000000400000-0x0000000000482000-memory.dmp

memory/2896-16-0x0000000000400000-0x0000000000482000-memory.dmp

memory/2896-17-0x0000000000400000-0x0000000000482000-memory.dmp

memory/2896-19-0x0000000000400000-0x0000000000482000-memory.dmp

memory/2896-18-0x0000000000400000-0x0000000000482000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-11-13 06:30

Reported

2024-11-13 06:33

Platform

win10v2004-20241007-en

Max time kernel

148s

Max time network

139s

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 216 set thread context of 808 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
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Users\Admin\AppData\Local\Temp\4599a9128ac5671a5e3ac44778542f3e67969e1c6f5021279329bf0e45085c62.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Users\Admin\AppData\Local\Temp\4599a9128ac5671a5e3ac44778542f3e67969e1c6f5021279329bf0e45085c62.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 1892 wrote to memory of 1684 N/A C:\Users\Admin\AppData\Local\Temp\4599a9128ac5671a5e3ac44778542f3e67969e1c6f5021279329bf0e45085c62.exe C:\Windows\SysWOW64\svchost.exe
PID 1892 wrote to memory of 1684 N/A C:\Users\Admin\AppData\Local\Temp\4599a9128ac5671a5e3ac44778542f3e67969e1c6f5021279329bf0e45085c62.exe C:\Windows\SysWOW64\svchost.exe
PID 1892 wrote to memory of 1684 N/A C:\Users\Admin\AppData\Local\Temp\4599a9128ac5671a5e3ac44778542f3e67969e1c6f5021279329bf0e45085c62.exe C:\Windows\SysWOW64\svchost.exe
PID 1892 wrote to memory of 3076 N/A C:\Users\Admin\AppData\Local\Temp\4599a9128ac5671a5e3ac44778542f3e67969e1c6f5021279329bf0e45085c62.exe C:\Users\Admin\AppData\Local\Temp\4599a9128ac5671a5e3ac44778542f3e67969e1c6f5021279329bf0e45085c62.exe
PID 1892 wrote to memory of 3076 N/A C:\Users\Admin\AppData\Local\Temp\4599a9128ac5671a5e3ac44778542f3e67969e1c6f5021279329bf0e45085c62.exe C:\Users\Admin\AppData\Local\Temp\4599a9128ac5671a5e3ac44778542f3e67969e1c6f5021279329bf0e45085c62.exe
PID 1892 wrote to memory of 3076 N/A C:\Users\Admin\AppData\Local\Temp\4599a9128ac5671a5e3ac44778542f3e67969e1c6f5021279329bf0e45085c62.exe C:\Users\Admin\AppData\Local\Temp\4599a9128ac5671a5e3ac44778542f3e67969e1c6f5021279329bf0e45085c62.exe
PID 3076 wrote to memory of 1032 N/A C:\Users\Admin\AppData\Local\Temp\4599a9128ac5671a5e3ac44778542f3e67969e1c6f5021279329bf0e45085c62.exe C:\Windows\SysWOW64\svchost.exe
PID 3076 wrote to memory of 1032 N/A C:\Users\Admin\AppData\Local\Temp\4599a9128ac5671a5e3ac44778542f3e67969e1c6f5021279329bf0e45085c62.exe C:\Windows\SysWOW64\svchost.exe
PID 3076 wrote to memory of 1032 N/A C:\Users\Admin\AppData\Local\Temp\4599a9128ac5671a5e3ac44778542f3e67969e1c6f5021279329bf0e45085c62.exe C:\Windows\SysWOW64\svchost.exe
PID 3076 wrote to memory of 216 N/A C:\Users\Admin\AppData\Local\Temp\4599a9128ac5671a5e3ac44778542f3e67969e1c6f5021279329bf0e45085c62.exe C:\Users\Admin\AppData\Local\Temp\4599a9128ac5671a5e3ac44778542f3e67969e1c6f5021279329bf0e45085c62.exe
PID 3076 wrote to memory of 216 N/A C:\Users\Admin\AppData\Local\Temp\4599a9128ac5671a5e3ac44778542f3e67969e1c6f5021279329bf0e45085c62.exe C:\Users\Admin\AppData\Local\Temp\4599a9128ac5671a5e3ac44778542f3e67969e1c6f5021279329bf0e45085c62.exe
PID 3076 wrote to memory of 216 N/A C:\Users\Admin\AppData\Local\Temp\4599a9128ac5671a5e3ac44778542f3e67969e1c6f5021279329bf0e45085c62.exe C:\Users\Admin\AppData\Local\Temp\4599a9128ac5671a5e3ac44778542f3e67969e1c6f5021279329bf0e45085c62.exe
PID 216 wrote to memory of 808 N/A C:\Users\Admin\AppData\Local\Temp\4599a9128ac5671a5e3ac44778542f3e67969e1c6f5021279329bf0e45085c62.exe C:\Windows\SysWOW64\svchost.exe
PID 216 wrote to memory of 808 N/A C:\Users\Admin\AppData\Local\Temp\4599a9128ac5671a5e3ac44778542f3e67969e1c6f5021279329bf0e45085c62.exe C:\Windows\SysWOW64\svchost.exe
PID 216 wrote to memory of 808 N/A C:\Users\Admin\AppData\Local\Temp\4599a9128ac5671a5e3ac44778542f3e67969e1c6f5021279329bf0e45085c62.exe C:\Windows\SysWOW64\svchost.exe
PID 216 wrote to memory of 808 N/A C:\Users\Admin\AppData\Local\Temp\4599a9128ac5671a5e3ac44778542f3e67969e1c6f5021279329bf0e45085c62.exe C:\Windows\SysWOW64\svchost.exe

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"

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"

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 8.8.8.8.in-addr.arpa udp
US 8.8.8.8:53 104.219.191.52.in-addr.arpa udp
US 8.8.8.8:53 240.221.184.93.in-addr.arpa udp
US 154.216.17.14:2404 tcp
US 8.8.8.8:53 14.17.216.154.in-addr.arpa udp
US 8.8.8.8:53 209.205.72.20.in-addr.arpa udp
US 8.8.8.8:53 50.23.12.20.in-addr.arpa udp
US 8.8.8.8:53 198.187.3.20.in-addr.arpa udp
US 8.8.8.8:53 105.208.201.84.in-addr.arpa udp
US 154.216.17.14:2404 tcp
US 8.8.8.8:53 19.229.111.52.in-addr.arpa udp
US 154.216.17.14:2404 tcp

Files

memory/1892-2-0x0000000003CB0000-0x0000000003DB0000-memory.dmp

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

MD5 d41d8cd98f00b204e9800998ecf8427e
SHA1 da39a3ee5e6b4b0d3255bfef95601890afd80709
SHA256 e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855
SHA512 cf83e1357eefb8bdf1542850d66d8007d620e4050b5715dc83f4a921d36ce9ce47d0d13c5d85f2b0ff8318d2877eec2f63b931bd47417a81a538327af927da3e

memory/3076-6-0x00000000040F0000-0x00000000041F0000-memory.dmp

memory/216-10-0x00000000037D0000-0x00000000038D0000-memory.dmp

memory/808-11-0x0000000000400000-0x0000000000482000-memory.dmp

memory/808-12-0x0000000000400000-0x0000000000482000-memory.dmp

memory/808-13-0x0000000000400000-0x0000000000482000-memory.dmp

memory/808-14-0x0000000000400000-0x0000000000482000-memory.dmp

memory/808-15-0x0000000000400000-0x0000000000482000-memory.dmp

memory/808-16-0x0000000000400000-0x0000000000482000-memory.dmp

memory/808-17-0x0000000000400000-0x0000000000482000-memory.dmp

memory/808-18-0x0000000000400000-0x0000000000482000-memory.dmp

memory/808-19-0x0000000000400000-0x0000000000482000-memory.dmp

memory/808-20-0x0000000000400000-0x0000000000482000-memory.dmp

memory/808-21-0x0000000000400000-0x0000000000482000-memory.dmp

memory/808-22-0x0000000000400000-0x0000000000482000-memory.dmp

memory/808-23-0x0000000000400000-0x0000000000482000-memory.dmp

memory/808-24-0x0000000000400000-0x0000000000482000-memory.dmp

memory/808-25-0x0000000000400000-0x0000000000482000-memory.dmp

memory/808-26-0x0000000000400000-0x0000000000482000-memory.dmp

memory/808-27-0x0000000000400000-0x0000000000482000-memory.dmp