Malware Analysis Report

2024-12-08 01:27

Sample ID 240903-nyxx5sxblb
Target c683eb9eea4611afb7550ca9a4019e77.zip
SHA256 a93b446d1d9064c15928fe6eb6ab5b5a3baa6bd38d2e2c85e780ed20763fd526
Tags
redline sectoprat discovery infostealer 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

a93b446d1d9064c15928fe6eb6ab5b5a3baa6bd38d2e2c85e780ed20763fd526

Threat Level: Known bad

The file c683eb9eea4611afb7550ca9a4019e77.zip was found to be: Known bad.

Malicious Activity Summary

redline sectoprat discovery infostealer rat trojan

RedLine

RedLine payload

SectopRAT

SectopRAT payload

Suspicious use of SetThreadContext

System Location Discovery: System Language Discovery

Suspicious use of WriteProcessMemory

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-09-03 11:48

Signatures

N/A

Analysis: behavioral1

Detonation Overview

Submitted

2024-09-03 11:48

Reported

2024-09-03 11:51

Platform

win7-20240729-en

Max time kernel

132s

Max time network

146s

Command Line

"C:\Users\Admin\AppData\Local\Temp\4e6e6547c384f489b1666e3f9e026c992fcf416f6ce090b4a6b678e361d03dbf.exe"

Signatures

RedLine

infostealer redline

RedLine 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

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

Suspicious use of SetThreadContext

Description Indicator Process Target
PID 2284 set thread context of 1740 N/A C:\Users\Admin\AppData\Local\Temp\4e6e6547c384f489b1666e3f9e026c992fcf416f6ce090b4a6b678e361d03dbf.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

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 2284 wrote to memory of 1740 N/A C:\Users\Admin\AppData\Local\Temp\4e6e6547c384f489b1666e3f9e026c992fcf416f6ce090b4a6b678e361d03dbf.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
PID 2284 wrote to memory of 1740 N/A C:\Users\Admin\AppData\Local\Temp\4e6e6547c384f489b1666e3f9e026c992fcf416f6ce090b4a6b678e361d03dbf.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
PID 2284 wrote to memory of 1740 N/A C:\Users\Admin\AppData\Local\Temp\4e6e6547c384f489b1666e3f9e026c992fcf416f6ce090b4a6b678e361d03dbf.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
PID 2284 wrote to memory of 1740 N/A C:\Users\Admin\AppData\Local\Temp\4e6e6547c384f489b1666e3f9e026c992fcf416f6ce090b4a6b678e361d03dbf.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
PID 2284 wrote to memory of 1740 N/A C:\Users\Admin\AppData\Local\Temp\4e6e6547c384f489b1666e3f9e026c992fcf416f6ce090b4a6b678e361d03dbf.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
PID 2284 wrote to memory of 1740 N/A C:\Users\Admin\AppData\Local\Temp\4e6e6547c384f489b1666e3f9e026c992fcf416f6ce090b4a6b678e361d03dbf.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
PID 2284 wrote to memory of 1740 N/A C:\Users\Admin\AppData\Local\Temp\4e6e6547c384f489b1666e3f9e026c992fcf416f6ce090b4a6b678e361d03dbf.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
PID 2284 wrote to memory of 1740 N/A C:\Users\Admin\AppData\Local\Temp\4e6e6547c384f489b1666e3f9e026c992fcf416f6ce090b4a6b678e361d03dbf.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
PID 2284 wrote to memory of 1740 N/A C:\Users\Admin\AppData\Local\Temp\4e6e6547c384f489b1666e3f9e026c992fcf416f6ce090b4a6b678e361d03dbf.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
PID 2284 wrote to memory of 1740 N/A C:\Users\Admin\AppData\Local\Temp\4e6e6547c384f489b1666e3f9e026c992fcf416f6ce090b4a6b678e361d03dbf.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
PID 2284 wrote to memory of 1740 N/A C:\Users\Admin\AppData\Local\Temp\4e6e6547c384f489b1666e3f9e026c992fcf416f6ce090b4a6b678e361d03dbf.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
PID 2284 wrote to memory of 1740 N/A C:\Users\Admin\AppData\Local\Temp\4e6e6547c384f489b1666e3f9e026c992fcf416f6ce090b4a6b678e361d03dbf.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe

Processes

C:\Users\Admin\AppData\Local\Temp\4e6e6547c384f489b1666e3f9e026c992fcf416f6ce090b4a6b678e361d03dbf.exe

"C:\Users\Admin\AppData\Local\Temp\4e6e6547c384f489b1666e3f9e026c992fcf416f6ce090b4a6b678e361d03dbf.exe"

C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe

#cmd

Network

Country Destination Domain Proto
FI 65.108.29.210:21638 tcp
FI 65.108.29.210:21638 tcp
FI 65.108.29.210:21638 tcp
FI 65.108.29.210:21638 tcp
FI 65.108.29.210:21638 tcp
FI 65.108.29.210:21638 tcp

Files

memory/2284-0-0x000007FEF57F3000-0x000007FEF57F4000-memory.dmp

memory/2284-1-0x0000000000FA0000-0x0000000000FD2000-memory.dmp

memory/2284-2-0x000007FEF57F0000-0x000007FEF61DC000-memory.dmp

memory/1740-9-0x0000000000400000-0x0000000000422000-memory.dmp

memory/1740-12-0x0000000000400000-0x0000000000422000-memory.dmp

memory/1740-11-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

memory/1740-7-0x0000000000400000-0x0000000000422000-memory.dmp

memory/1740-5-0x0000000000400000-0x0000000000422000-memory.dmp

memory/1740-3-0x0000000000400000-0x0000000000422000-memory.dmp

memory/1740-16-0x0000000000400000-0x0000000000422000-memory.dmp

memory/1740-14-0x0000000000400000-0x0000000000422000-memory.dmp

memory/2284-17-0x000007FEF57F0000-0x000007FEF61DC000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-09-03 11:48

Reported

2024-09-03 11:51

Platform

win10v2004-20240802-en

Max time kernel

132s

Max time network

150s

Command Line

"C:\Users\Admin\AppData\Local\Temp\4e6e6547c384f489b1666e3f9e026c992fcf416f6ce090b4a6b678e361d03dbf.exe"

Signatures

RedLine

infostealer redline

RedLine payload

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

SectopRAT

trojan rat sectoprat

SectopRAT payload

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

Suspicious use of SetThreadContext

Description Indicator Process Target
PID 2620 set thread context of 4376 N/A C:\Users\Admin\AppData\Local\Temp\4e6e6547c384f489b1666e3f9e026c992fcf416f6ce090b4a6b678e361d03dbf.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

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 2620 wrote to memory of 4376 N/A C:\Users\Admin\AppData\Local\Temp\4e6e6547c384f489b1666e3f9e026c992fcf416f6ce090b4a6b678e361d03dbf.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
PID 2620 wrote to memory of 4376 N/A C:\Users\Admin\AppData\Local\Temp\4e6e6547c384f489b1666e3f9e026c992fcf416f6ce090b4a6b678e361d03dbf.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
PID 2620 wrote to memory of 4376 N/A C:\Users\Admin\AppData\Local\Temp\4e6e6547c384f489b1666e3f9e026c992fcf416f6ce090b4a6b678e361d03dbf.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
PID 2620 wrote to memory of 4376 N/A C:\Users\Admin\AppData\Local\Temp\4e6e6547c384f489b1666e3f9e026c992fcf416f6ce090b4a6b678e361d03dbf.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
PID 2620 wrote to memory of 4376 N/A C:\Users\Admin\AppData\Local\Temp\4e6e6547c384f489b1666e3f9e026c992fcf416f6ce090b4a6b678e361d03dbf.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
PID 2620 wrote to memory of 4376 N/A C:\Users\Admin\AppData\Local\Temp\4e6e6547c384f489b1666e3f9e026c992fcf416f6ce090b4a6b678e361d03dbf.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
PID 2620 wrote to memory of 4376 N/A C:\Users\Admin\AppData\Local\Temp\4e6e6547c384f489b1666e3f9e026c992fcf416f6ce090b4a6b678e361d03dbf.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
PID 2620 wrote to memory of 4376 N/A C:\Users\Admin\AppData\Local\Temp\4e6e6547c384f489b1666e3f9e026c992fcf416f6ce090b4a6b678e361d03dbf.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe

Processes

C:\Users\Admin\AppData\Local\Temp\4e6e6547c384f489b1666e3f9e026c992fcf416f6ce090b4a6b678e361d03dbf.exe

"C:\Users\Admin\AppData\Local\Temp\4e6e6547c384f489b1666e3f9e026c992fcf416f6ce090b4a6b678e361d03dbf.exe"

C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe

#cmd

Network

Country Destination Domain Proto
US 8.8.8.8:53 73.144.22.2.in-addr.arpa udp
US 8.8.8.8:53 232.168.11.51.in-addr.arpa udp
FI 65.108.29.210:21638 tcp
US 8.8.8.8:53 71.159.190.20.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 217.106.137.52.in-addr.arpa udp
US 8.8.8.8:53 209.205.72.20.in-addr.arpa udp
FI 65.108.29.210:21638 tcp
US 8.8.8.8:53 103.169.127.40.in-addr.arpa udp
US 8.8.8.8:53 206.23.85.13.in-addr.arpa udp
US 8.8.8.8:53 24.139.73.23.in-addr.arpa udp
FI 65.108.29.210:21638 tcp
US 8.8.8.8:53 172.214.232.199.in-addr.arpa udp
FI 65.108.29.210:21638 tcp
US 8.8.8.8:53 11.227.111.52.in-addr.arpa udp
FI 65.108.29.210:21638 tcp
FI 65.108.29.210:21638 tcp

Files

memory/2620-0-0x00007FF844513000-0x00007FF844515000-memory.dmp

memory/2620-1-0x0000000000F20000-0x0000000000F52000-memory.dmp

memory/2620-2-0x00007FF844510000-0x00007FF844FD1000-memory.dmp

memory/4376-3-0x0000000000400000-0x0000000000422000-memory.dmp

memory/2620-5-0x00007FF844510000-0x00007FF844FD1000-memory.dmp

memory/4376-6-0x000000007466E000-0x000000007466F000-memory.dmp

memory/4376-7-0x00000000052E0000-0x00000000058F8000-memory.dmp

memory/4376-8-0x0000000004D80000-0x0000000004D92000-memory.dmp

memory/4376-9-0x0000000004EF0000-0x0000000004FFA000-memory.dmp

memory/4376-10-0x0000000004E30000-0x0000000004E6C000-memory.dmp

memory/4376-11-0x0000000074660000-0x0000000074E10000-memory.dmp

memory/4376-12-0x0000000004E70000-0x0000000004EBC000-memory.dmp

memory/4376-13-0x000000007466E000-0x000000007466F000-memory.dmp

memory/4376-14-0x0000000074660000-0x0000000074E10000-memory.dmp