Malware Analysis Report

2025-01-02 05:46

Sample ID 241004-b9yycssamh
Target 9ef0b7351873989dde1b4bf5e244c617b92bb904152ac1d55a4a1fd93b732d05.exe
SHA256 9ef0b7351873989dde1b4bf5e244c617b92bb904152ac1d55a4a1fd93b732d05
Tags
sectoprat discovery persistence rat trojan
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

9ef0b7351873989dde1b4bf5e244c617b92bb904152ac1d55a4a1fd93b732d05

Threat Level: Known bad

The file 9ef0b7351873989dde1b4bf5e244c617b92bb904152ac1d55a4a1fd93b732d05.exe was found to be: Known bad.

Malicious Activity Summary

sectoprat discovery persistence rat trojan

SectopRAT

SectopRAT payload

Adds Run key to start application

Legitimate hosting services abused for malware hosting/C2

Suspicious use of SetThreadContext

Unsigned PE

System Location Discovery: System Language Discovery

Suspicious use of AdjustPrivilegeToken

Suspicious use of WriteProcessMemory

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-10-04 01:51

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-10-04 01:51

Reported

2024-10-04 01:53

Platform

win7-20240729-en

Max time kernel

134s

Max time network

137s

Command Line

"C:\Users\Admin\AppData\Local\Temp\9ef0b7351873989dde1b4bf5e244c617b92bb904152ac1d55a4a1fd93b732d05.exe"

Signatures

SectopRAT

trojan rat sectoprat

SectopRAT payload

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

Adds Run key to start application

persistence
Description Indicator Process Target
Set value (str) \REGISTRY\USER\S-1-5-21-2703099537-420551529-3771253338-1000\Software\Microsoft\Windows\CurrentVersion\Run\ = "C:\\ProgramData\\3Ahm8Ytw2JgFFB1ZvHN\\mQ8U4j328nh5XRy8i.vbs" C:\Users\Admin\AppData\Local\Temp\9ef0b7351873989dde1b4bf5e244c617b92bb904152ac1d55a4a1fd93b732d05.exe N/A

Legitimate hosting services abused for malware hosting/C2

Description Indicator Process Target
N/A pastebin.com N/A N/A
N/A pastebin.com N/A N/A

Suspicious use of SetThreadContext

Description Indicator Process Target
PID 2384 set thread context of 2380 N/A C:\Users\Admin\AppData\Local\Temp\9ef0b7351873989dde1b4bf5e244c617b92bb904152ac1d55a4a1fd93b732d05.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
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Users\Admin\AppData\Local\Temp\9ef0b7351873989dde1b4bf5e244c617b92bb904152ac1d55a4a1fd93b732d05.exe N/A

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 2384 wrote to memory of 2380 N/A C:\Users\Admin\AppData\Local\Temp\9ef0b7351873989dde1b4bf5e244c617b92bb904152ac1d55a4a1fd93b732d05.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
PID 2384 wrote to memory of 2380 N/A C:\Users\Admin\AppData\Local\Temp\9ef0b7351873989dde1b4bf5e244c617b92bb904152ac1d55a4a1fd93b732d05.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
PID 2384 wrote to memory of 2380 N/A C:\Users\Admin\AppData\Local\Temp\9ef0b7351873989dde1b4bf5e244c617b92bb904152ac1d55a4a1fd93b732d05.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
PID 2384 wrote to memory of 2380 N/A C:\Users\Admin\AppData\Local\Temp\9ef0b7351873989dde1b4bf5e244c617b92bb904152ac1d55a4a1fd93b732d05.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
PID 2384 wrote to memory of 2380 N/A C:\Users\Admin\AppData\Local\Temp\9ef0b7351873989dde1b4bf5e244c617b92bb904152ac1d55a4a1fd93b732d05.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
PID 2384 wrote to memory of 2380 N/A C:\Users\Admin\AppData\Local\Temp\9ef0b7351873989dde1b4bf5e244c617b92bb904152ac1d55a4a1fd93b732d05.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
PID 2384 wrote to memory of 2380 N/A C:\Users\Admin\AppData\Local\Temp\9ef0b7351873989dde1b4bf5e244c617b92bb904152ac1d55a4a1fd93b732d05.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
PID 2384 wrote to memory of 2380 N/A C:\Users\Admin\AppData\Local\Temp\9ef0b7351873989dde1b4bf5e244c617b92bb904152ac1d55a4a1fd93b732d05.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
PID 2384 wrote to memory of 2380 N/A C:\Users\Admin\AppData\Local\Temp\9ef0b7351873989dde1b4bf5e244c617b92bb904152ac1d55a4a1fd93b732d05.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
PID 2384 wrote to memory of 2380 N/A C:\Users\Admin\AppData\Local\Temp\9ef0b7351873989dde1b4bf5e244c617b92bb904152ac1d55a4a1fd93b732d05.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
PID 2384 wrote to memory of 2380 N/A C:\Users\Admin\AppData\Local\Temp\9ef0b7351873989dde1b4bf5e244c617b92bb904152ac1d55a4a1fd93b732d05.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
PID 2384 wrote to memory of 2380 N/A C:\Users\Admin\AppData\Local\Temp\9ef0b7351873989dde1b4bf5e244c617b92bb904152ac1d55a4a1fd93b732d05.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe

Processes

C:\Users\Admin\AppData\Local\Temp\9ef0b7351873989dde1b4bf5e244c617b92bb904152ac1d55a4a1fd93b732d05.exe

"C:\Users\Admin\AppData\Local\Temp\9ef0b7351873989dde1b4bf5e244c617b92bb904152ac1d55a4a1fd93b732d05.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
RU 176.111.174.142:15647 tcp
US 8.8.8.8:53 pastebin.com udp
US 172.67.19.24:443 pastebin.com tcp
RU 176.111.174.142:15647 tcp
RU 176.111.174.142:15647 tcp
RU 176.111.174.142:15647 tcp
RU 176.111.174.142:15647 tcp
RU 176.111.174.142:15647 tcp

Files

memory/2384-0-0x000000000063D000-0x000000000063F000-memory.dmp

memory/2380-4-0x0000000000400000-0x00000000004D4000-memory.dmp

memory/2380-14-0x0000000000400000-0x00000000004D4000-memory.dmp

memory/2380-19-0x0000000000400000-0x00000000004D4000-memory.dmp

memory/2384-20-0x0000000000400000-0x0000000000A54000-memory.dmp

memory/2380-18-0x0000000000400000-0x00000000004D4000-memory.dmp

memory/2380-11-0x0000000000400000-0x00000000004D4000-memory.dmp

memory/2380-17-0x0000000000400000-0x00000000004D4000-memory.dmp

memory/2380-8-0x0000000000400000-0x00000000004D4000-memory.dmp

memory/2384-5-0x0000000000400000-0x0000000000A54000-memory.dmp

memory/2380-3-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-10-04 01:51

Reported

2024-10-04 01:53

Platform

win10v2004-20240802-en

Max time kernel

150s

Max time network

151s

Command Line

"C:\Users\Admin\AppData\Local\Temp\9ef0b7351873989dde1b4bf5e244c617b92bb904152ac1d55a4a1fd93b732d05.exe"

Signatures

SectopRAT

trojan rat sectoprat

SectopRAT payload

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

Adds Run key to start application

persistence
Description Indicator Process Target
Set value (str) \REGISTRY\USER\S-1-5-21-2392887640-1187051047-2909758433-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\ = "C:\\ProgramData\\3Ahm8Ytw2JgFFB1ZvHN\\mQ8U4j328nh5XRy8i.vbs" C:\Users\Admin\AppData\Local\Temp\9ef0b7351873989dde1b4bf5e244c617b92bb904152ac1d55a4a1fd93b732d05.exe N/A

Legitimate hosting services abused for malware hosting/C2

Description Indicator Process Target
N/A pastebin.com N/A N/A
N/A pastebin.com N/A N/A

Suspicious use of SetThreadContext

Description Indicator Process Target
PID 3508 set thread context of 400 N/A C:\Users\Admin\AppData\Local\Temp\9ef0b7351873989dde1b4bf5e244c617b92bb904152ac1d55a4a1fd93b732d05.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:\Users\Admin\AppData\Local\Temp\9ef0b7351873989dde1b4bf5e244c617b92bb904152ac1d55a4a1fd93b732d05.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe N/A

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 3508 wrote to memory of 400 N/A C:\Users\Admin\AppData\Local\Temp\9ef0b7351873989dde1b4bf5e244c617b92bb904152ac1d55a4a1fd93b732d05.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
PID 3508 wrote to memory of 400 N/A C:\Users\Admin\AppData\Local\Temp\9ef0b7351873989dde1b4bf5e244c617b92bb904152ac1d55a4a1fd93b732d05.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
PID 3508 wrote to memory of 400 N/A C:\Users\Admin\AppData\Local\Temp\9ef0b7351873989dde1b4bf5e244c617b92bb904152ac1d55a4a1fd93b732d05.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
PID 3508 wrote to memory of 400 N/A C:\Users\Admin\AppData\Local\Temp\9ef0b7351873989dde1b4bf5e244c617b92bb904152ac1d55a4a1fd93b732d05.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
PID 3508 wrote to memory of 400 N/A C:\Users\Admin\AppData\Local\Temp\9ef0b7351873989dde1b4bf5e244c617b92bb904152ac1d55a4a1fd93b732d05.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
PID 3508 wrote to memory of 400 N/A C:\Users\Admin\AppData\Local\Temp\9ef0b7351873989dde1b4bf5e244c617b92bb904152ac1d55a4a1fd93b732d05.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
PID 3508 wrote to memory of 400 N/A C:\Users\Admin\AppData\Local\Temp\9ef0b7351873989dde1b4bf5e244c617b92bb904152ac1d55a4a1fd93b732d05.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
PID 3508 wrote to memory of 400 N/A C:\Users\Admin\AppData\Local\Temp\9ef0b7351873989dde1b4bf5e244c617b92bb904152ac1d55a4a1fd93b732d05.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe

Processes

C:\Users\Admin\AppData\Local\Temp\9ef0b7351873989dde1b4bf5e244c617b92bb904152ac1d55a4a1fd93b732d05.exe

"C:\Users\Admin\AppData\Local\Temp\9ef0b7351873989dde1b4bf5e244c617b92bb904152ac1d55a4a1fd93b732d05.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
RU 176.111.174.142:15647 tcp
US 8.8.8.8:53 88.210.23.2.in-addr.arpa udp
US 8.8.8.8:53 133.211.185.52.in-addr.arpa udp
US 8.8.8.8:53 76.32.126.40.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 pastebin.com udp
US 104.20.4.235:443 pastebin.com tcp
US 8.8.8.8:53 235.4.20.104.in-addr.arpa udp
US 8.8.8.8:53 28.118.140.52.in-addr.arpa udp
US 8.8.8.8:53 56.163.245.4.in-addr.arpa udp
US 8.8.8.8:53 18.31.95.13.in-addr.arpa udp
US 8.8.8.8:53 75.117.19.2.in-addr.arpa udp
RU 176.111.174.142:15647 tcp
US 8.8.8.8:53 83.210.23.2.in-addr.arpa udp
US 8.8.8.8:53 172.210.232.199.in-addr.arpa udp
US 8.8.8.8:53 21.236.111.52.in-addr.arpa udp
RU 176.111.174.142:15647 tcp
RU 176.111.174.142:15647 tcp
RU 176.111.174.142:15647 tcp
US 8.8.8.8:53 udp

Files

memory/3508-0-0x000000000063D000-0x000000000063F000-memory.dmp

memory/400-7-0x0000000000630000-0x0000000000704000-memory.dmp

memory/400-6-0x0000000000630000-0x0000000000704000-memory.dmp

memory/3508-9-0x0000000000BD0000-0x0000000000BE3000-memory.dmp

memory/3508-8-0x0000000000400000-0x0000000000A54000-memory.dmp

memory/400-5-0x0000000000630000-0x0000000000704000-memory.dmp

memory/400-4-0x0000000000630000-0x0000000000704000-memory.dmp

memory/400-3-0x0000000000630000-0x0000000000704000-memory.dmp

memory/400-10-0x0000000074D3E000-0x0000000074D3F000-memory.dmp

memory/400-11-0x0000000004DC0000-0x0000000004E52000-memory.dmp

memory/400-12-0x0000000005030000-0x00000000051F2000-memory.dmp

memory/400-13-0x0000000074D30000-0x00000000754E0000-memory.dmp

memory/400-14-0x00000000057B0000-0x0000000005D54000-memory.dmp

memory/400-15-0x0000000004D50000-0x0000000004DA0000-memory.dmp

memory/3508-16-0x0000000000400000-0x0000000000A54000-memory.dmp

memory/400-17-0x0000000074D3E000-0x0000000074D3F000-memory.dmp

memory/400-18-0x0000000074D30000-0x00000000754E0000-memory.dmp