Malware Analysis Report

2025-01-02 05:45

Sample ID 241004-cdgvmsybkn
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: behavioral2

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis: behavioral1

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 01:57

Signatures

Unsigned PE

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

Analysis: behavioral2

Detonation Overview

Submitted

2024-10-04 01:57

Reported

2024-10-04 02:00

Platform

win10v2004-20240802-en

Max time kernel

105s

Max time network

149s

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-1-5-21-523280732-2327480845-3730041215-1000\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 3100 set thread context of 4644 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 3100 wrote to memory of 4644 N/A C:\Users\Admin\AppData\Local\Temp\9ef0b7351873989dde1b4bf5e244c617b92bb904152ac1d55a4a1fd93b732d05.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
PID 3100 wrote to memory of 4644 N/A C:\Users\Admin\AppData\Local\Temp\9ef0b7351873989dde1b4bf5e244c617b92bb904152ac1d55a4a1fd93b732d05.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
PID 3100 wrote to memory of 4644 N/A C:\Users\Admin\AppData\Local\Temp\9ef0b7351873989dde1b4bf5e244c617b92bb904152ac1d55a4a1fd93b732d05.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
PID 3100 wrote to memory of 4644 N/A C:\Users\Admin\AppData\Local\Temp\9ef0b7351873989dde1b4bf5e244c617b92bb904152ac1d55a4a1fd93b732d05.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
PID 3100 wrote to memory of 4644 N/A C:\Users\Admin\AppData\Local\Temp\9ef0b7351873989dde1b4bf5e244c617b92bb904152ac1d55a4a1fd93b732d05.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
PID 3100 wrote to memory of 4644 N/A C:\Users\Admin\AppData\Local\Temp\9ef0b7351873989dde1b4bf5e244c617b92bb904152ac1d55a4a1fd93b732d05.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
PID 3100 wrote to memory of 4644 N/A C:\Users\Admin\AppData\Local\Temp\9ef0b7351873989dde1b4bf5e244c617b92bb904152ac1d55a4a1fd93b732d05.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
PID 3100 wrote to memory of 4644 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 8.8.8.8:53 228.249.119.40.in-addr.arpa udp
US 8.8.8.8:53 14.160.190.20.in-addr.arpa udp
US 8.8.8.8:53 83.210.23.2.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
RU 176.111.174.142:15647 tcp
US 8.8.8.8:53 133.211.185.52.in-addr.arpa udp
US 8.8.8.8:53 53.210.109.20.in-addr.arpa udp
US 8.8.8.8:53 198.187.3.20.in-addr.arpa udp
US 8.8.8.8:53 98.117.19.2.in-addr.arpa udp
RU 176.111.174.142:15647 tcp
US 8.8.8.8:53 172.214.232.199.in-addr.arpa udp
RU 176.111.174.142:15647 tcp
US 8.8.8.8:53 19.229.111.52.in-addr.arpa udp
RU 176.111.174.142:15647 tcp

Files

memory/3100-0-0x000000000063D000-0x000000000063F000-memory.dmp

memory/4644-3-0x0000000000400000-0x00000000004D4000-memory.dmp

memory/4644-6-0x0000000000400000-0x00000000004D4000-memory.dmp

memory/4644-7-0x0000000000400000-0x00000000004D4000-memory.dmp

memory/3100-8-0x0000000000400000-0x0000000000A54000-memory.dmp

memory/3100-10-0x0000000000400000-0x0000000000A54000-memory.dmp

memory/3100-9-0x0000000000BF0000-0x0000000000C03000-memory.dmp

memory/4644-5-0x0000000000400000-0x00000000004D4000-memory.dmp

memory/4644-4-0x0000000000400000-0x00000000004D4000-memory.dmp

memory/4644-11-0x0000000074FDE000-0x0000000074FDF000-memory.dmp

memory/4644-12-0x00000000056E0000-0x0000000005772000-memory.dmp

memory/4644-13-0x0000000074FD0000-0x0000000075780000-memory.dmp

memory/4644-14-0x0000000005970000-0x0000000005B32000-memory.dmp

memory/4644-15-0x00000000060F0000-0x0000000006694000-memory.dmp

memory/4644-16-0x0000000005790000-0x00000000057E0000-memory.dmp

memory/4644-17-0x0000000074FDE000-0x0000000074FDF000-memory.dmp

memory/4644-18-0x0000000074FD0000-0x0000000075780000-memory.dmp

Analysis: behavioral1

Detonation Overview

Submitted

2024-10-04 01:57

Reported

2024-10-04 02:00

Platform

win7-20240903-en

Max time kernel

141s

Max time network

143s

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-1-5-21-1846800975-3917212583-2893086201-1000\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 880 set thread context of 2924 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 880 wrote to memory of 2924 N/A C:\Users\Admin\AppData\Local\Temp\9ef0b7351873989dde1b4bf5e244c617b92bb904152ac1d55a4a1fd93b732d05.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
PID 880 wrote to memory of 2924 N/A C:\Users\Admin\AppData\Local\Temp\9ef0b7351873989dde1b4bf5e244c617b92bb904152ac1d55a4a1fd93b732d05.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
PID 880 wrote to memory of 2924 N/A C:\Users\Admin\AppData\Local\Temp\9ef0b7351873989dde1b4bf5e244c617b92bb904152ac1d55a4a1fd93b732d05.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
PID 880 wrote to memory of 2924 N/A C:\Users\Admin\AppData\Local\Temp\9ef0b7351873989dde1b4bf5e244c617b92bb904152ac1d55a4a1fd93b732d05.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
PID 880 wrote to memory of 2924 N/A C:\Users\Admin\AppData\Local\Temp\9ef0b7351873989dde1b4bf5e244c617b92bb904152ac1d55a4a1fd93b732d05.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
PID 880 wrote to memory of 2924 N/A C:\Users\Admin\AppData\Local\Temp\9ef0b7351873989dde1b4bf5e244c617b92bb904152ac1d55a4a1fd93b732d05.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
PID 880 wrote to memory of 2924 N/A C:\Users\Admin\AppData\Local\Temp\9ef0b7351873989dde1b4bf5e244c617b92bb904152ac1d55a4a1fd93b732d05.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
PID 880 wrote to memory of 2924 N/A C:\Users\Admin\AppData\Local\Temp\9ef0b7351873989dde1b4bf5e244c617b92bb904152ac1d55a4a1fd93b732d05.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
PID 880 wrote to memory of 2924 N/A C:\Users\Admin\AppData\Local\Temp\9ef0b7351873989dde1b4bf5e244c617b92bb904152ac1d55a4a1fd93b732d05.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
PID 880 wrote to memory of 2924 N/A C:\Users\Admin\AppData\Local\Temp\9ef0b7351873989dde1b4bf5e244c617b92bb904152ac1d55a4a1fd93b732d05.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
PID 880 wrote to memory of 2924 N/A C:\Users\Admin\AppData\Local\Temp\9ef0b7351873989dde1b4bf5e244c617b92bb904152ac1d55a4a1fd93b732d05.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
PID 880 wrote to memory of 2924 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

Files

memory/880-0-0x000000000063D000-0x000000000063F000-memory.dmp

memory/2924-3-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

memory/2924-14-0x0000000000400000-0x00000000004D4000-memory.dmp

memory/880-20-0x0000000000400000-0x0000000000A54000-memory.dmp

memory/2924-19-0x0000000000400000-0x00000000004D4000-memory.dmp

memory/2924-18-0x0000000000400000-0x00000000004D4000-memory.dmp

memory/2924-17-0x0000000000400000-0x00000000004D4000-memory.dmp

memory/880-10-0x0000000000400000-0x0000000000A54000-memory.dmp

memory/2924-7-0x0000000000400000-0x00000000004D4000-memory.dmp

memory/2924-4-0x0000000000400000-0x00000000004D4000-memory.dmp

memory/2924-11-0x0000000000400000-0x00000000004D4000-memory.dmp