Malware Analysis Report

2025-01-18 03:00

Sample ID 241203-yryafa1pay
Target 881f0fde97e3a94f2f88e4023abc52c03ff1ece316222ff6a69741e6243f6aa3.exe
SHA256 881f0fde97e3a94f2f88e4023abc52c03ff1ece316222ff6a69741e6243f6aa3
Tags
revengerat marzo26 discovery 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

881f0fde97e3a94f2f88e4023abc52c03ff1ece316222ff6a69741e6243f6aa3

Threat Level: Known bad

The file 881f0fde97e3a94f2f88e4023abc52c03ff1ece316222ff6a69741e6243f6aa3.exe was found to be: Known bad.

Malicious Activity Summary

revengerat marzo26 discovery trojan

Revengerat family

RevengeRAT

Drops startup file

Suspicious use of SetThreadContext

AutoIT Executable

System Location Discovery: System Language Discovery

Unsigned PE

Checks processor information in registry

Suspicious use of AdjustPrivilegeToken

Suspicious use of FindShellTrayWindow

Suspicious use of SendNotifyMessage

Suspicious use of WriteProcessMemory

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-12-03 20:01

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

2024-12-03 20:01

Reported

2024-12-03 20:03

Platform

win7-20240708-en

Max time kernel

120s

Max time network

120s

Command Line

"C:\Users\Admin\AppData\Local\Temp\881f0fde97e3a94f2f88e4023abc52c03ff1ece316222ff6a69741e6243f6aa3.exe"

Signatures

RevengeRAT

trojan revengerat

Revengerat family

revengerat

Drops startup file

Description Indicator Process Target
File created C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\AudioHandlers.url C:\Users\Admin\AppData\Local\Temp\881f0fde97e3a94f2f88e4023abc52c03ff1ece316222ff6a69741e6243f6aa3.exe N/A

Suspicious use of SetThreadContext

Description Indicator Process Target
PID 2084 set thread context of 2856 N/A C:\Users\Admin\AppData\Local\Temp\881f0fde97e3a94f2f88e4023abc52c03ff1ece316222ff6a69741e6243f6aa3.exe C:\Windows\Microsoft.NET\Framework\v2.0.50727\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\881f0fde97e3a94f2f88e4023abc52c03ff1ece316222ff6a69741e6243f6aa3.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe N/A

Checks processor information in registry

Description Indicator Process Target
Key opened \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\SYSTEM\CENTRALPROCESSOR\0 C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe N/A
Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe N/A

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 2084 wrote to memory of 2856 N/A C:\Users\Admin\AppData\Local\Temp\881f0fde97e3a94f2f88e4023abc52c03ff1ece316222ff6a69741e6243f6aa3.exe C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe
PID 2084 wrote to memory of 2856 N/A C:\Users\Admin\AppData\Local\Temp\881f0fde97e3a94f2f88e4023abc52c03ff1ece316222ff6a69741e6243f6aa3.exe C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe
PID 2084 wrote to memory of 2856 N/A C:\Users\Admin\AppData\Local\Temp\881f0fde97e3a94f2f88e4023abc52c03ff1ece316222ff6a69741e6243f6aa3.exe C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe
PID 2084 wrote to memory of 2856 N/A C:\Users\Admin\AppData\Local\Temp\881f0fde97e3a94f2f88e4023abc52c03ff1ece316222ff6a69741e6243f6aa3.exe C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe
PID 2084 wrote to memory of 2856 N/A C:\Users\Admin\AppData\Local\Temp\881f0fde97e3a94f2f88e4023abc52c03ff1ece316222ff6a69741e6243f6aa3.exe C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe
PID 2084 wrote to memory of 2856 N/A C:\Users\Admin\AppData\Local\Temp\881f0fde97e3a94f2f88e4023abc52c03ff1ece316222ff6a69741e6243f6aa3.exe C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe
PID 2084 wrote to memory of 2856 N/A C:\Users\Admin\AppData\Local\Temp\881f0fde97e3a94f2f88e4023abc52c03ff1ece316222ff6a69741e6243f6aa3.exe C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe
PID 2084 wrote to memory of 2856 N/A C:\Users\Admin\AppData\Local\Temp\881f0fde97e3a94f2f88e4023abc52c03ff1ece316222ff6a69741e6243f6aa3.exe C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe
PID 2084 wrote to memory of 2856 N/A C:\Users\Admin\AppData\Local\Temp\881f0fde97e3a94f2f88e4023abc52c03ff1ece316222ff6a69741e6243f6aa3.exe C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe

Processes

C:\Users\Admin\AppData\Local\Temp\881f0fde97e3a94f2f88e4023abc52c03ff1ece316222ff6a69741e6243f6aa3.exe

"C:\Users\Admin\AppData\Local\Temp\881f0fde97e3a94f2f88e4023abc52c03ff1ece316222ff6a69741e6243f6aa3.exe"

C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe

"C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe"

Network

Country Destination Domain Proto
US 8.8.8.8:53 marzorevenger.duckdns.org udp
US 192.169.69.26:4230 marzorevenger.duckdns.org tcp
US 192.169.69.26:4230 marzorevenger.duckdns.org tcp
US 192.169.69.26:4230 marzorevenger.duckdns.org tcp
US 192.169.69.26:4230 marzorevenger.duckdns.org tcp
US 192.169.69.26:4230 marzorevenger.duckdns.org tcp
US 192.169.69.26:4230 marzorevenger.duckdns.org tcp
US 192.169.69.26:4230 marzorevenger.duckdns.org tcp
US 192.169.69.26:4230 marzorevenger.duckdns.org tcp
US 192.169.69.26:4230 marzorevenger.duckdns.org tcp
US 192.169.69.26:4230 marzorevenger.duckdns.org tcp
US 192.169.69.26:4230 marzorevenger.duckdns.org tcp
US 192.169.69.26:4230 marzorevenger.duckdns.org tcp
US 192.169.69.26:4230 marzorevenger.duckdns.org tcp
US 192.169.69.26:4230 marzorevenger.duckdns.org tcp
US 192.169.69.26:4230 marzorevenger.duckdns.org tcp
US 192.169.69.26:4230 marzorevenger.duckdns.org tcp
US 192.169.69.26:4230 marzorevenger.duckdns.org tcp
US 8.8.8.8:53 marzorevenger.duckdns.org udp
US 192.169.69.26:4230 marzorevenger.duckdns.org tcp
US 192.169.69.26:4230 marzorevenger.duckdns.org tcp
US 192.169.69.26:4230 marzorevenger.duckdns.org tcp
US 192.169.69.26:4230 marzorevenger.duckdns.org tcp
US 192.169.69.26:4230 marzorevenger.duckdns.org tcp
US 192.169.69.26:4230 marzorevenger.duckdns.org tcp
US 192.169.69.26:4230 marzorevenger.duckdns.org tcp
US 192.169.69.26:4230 marzorevenger.duckdns.org tcp
US 192.169.69.26:4230 marzorevenger.duckdns.org tcp
US 192.169.69.26:4230 marzorevenger.duckdns.org tcp
US 192.169.69.26:4230 marzorevenger.duckdns.org tcp
US 192.169.69.26:4230 marzorevenger.duckdns.org tcp
US 192.169.69.26:4230 marzorevenger.duckdns.org tcp
US 192.169.69.26:4230 marzorevenger.duckdns.org tcp
US 192.169.69.26:4230 marzorevenger.duckdns.org tcp
US 192.169.69.26:4230 marzorevenger.duckdns.org tcp
US 192.169.69.26:4230 marzorevenger.duckdns.org tcp

Files

memory/2084-0-0x00000000001A0000-0x00000000001A1000-memory.dmp

memory/2856-1-0x0000000000400000-0x0000000000408000-memory.dmp

memory/2856-5-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

memory/2856-2-0x0000000000400000-0x0000000000408000-memory.dmp

memory/2856-7-0x0000000000400000-0x0000000000408000-memory.dmp

memory/2856-8-0x0000000000400000-0x0000000000408000-memory.dmp

memory/2856-9-0x00000000747A2000-0x00000000747A4000-memory.dmp

memory/2856-10-0x00000000747A2000-0x00000000747A4000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-12-03 20:01

Reported

2024-12-03 20:03

Platform

win10v2004-20241007-en

Max time kernel

117s

Max time network

119s

Command Line

"C:\Users\Admin\AppData\Local\Temp\881f0fde97e3a94f2f88e4023abc52c03ff1ece316222ff6a69741e6243f6aa3.exe"

Signatures

RevengeRAT

trojan revengerat

Revengerat family

revengerat

Drops startup file

Description Indicator Process Target
File created C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\AudioHandlers.url C:\Users\Admin\AppData\Local\Temp\881f0fde97e3a94f2f88e4023abc52c03ff1ece316222ff6a69741e6243f6aa3.exe N/A

Suspicious use of SetThreadContext

Description Indicator Process Target
PID 2408 set thread context of 4008 N/A C:\Users\Admin\AppData\Local\Temp\881f0fde97e3a94f2f88e4023abc52c03ff1ece316222ff6a69741e6243f6aa3.exe C:\Windows\Microsoft.NET\Framework\v2.0.50727\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\881f0fde97e3a94f2f88e4023abc52c03ff1ece316222ff6a69741e6243f6aa3.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe N/A

Checks processor information in registry

Description Indicator Process Target
Key opened \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\SYSTEM\CENTRALPROCESSOR\0 C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe N/A
Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe N/A

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\881f0fde97e3a94f2f88e4023abc52c03ff1ece316222ff6a69741e6243f6aa3.exe

"C:\Users\Admin\AppData\Local\Temp\881f0fde97e3a94f2f88e4023abc52c03ff1ece316222ff6a69741e6243f6aa3.exe"

C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe

"C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.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 13.86.106.20.in-addr.arpa udp
US 8.8.8.8:53 marzorevenger.duckdns.org udp
US 192.169.69.26:4230 marzorevenger.duckdns.org tcp
US 8.8.8.8:53 172.214.232.199.in-addr.arpa udp
US 8.8.8.8:53 26.69.169.192.in-addr.arpa udp
US 8.8.8.8:53 71.31.126.40.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 192.169.69.26:4230 marzorevenger.duckdns.org tcp
US 192.169.69.26:4230 marzorevenger.duckdns.org tcp
US 192.169.69.26:4230 marzorevenger.duckdns.org tcp
US 192.169.69.26:4230 marzorevenger.duckdns.org tcp
US 192.169.69.26:4230 marzorevenger.duckdns.org tcp
US 192.169.69.26:4230 marzorevenger.duckdns.org tcp
US 192.169.69.26:4230 marzorevenger.duckdns.org tcp
US 192.169.69.26:4230 marzorevenger.duckdns.org tcp
US 8.8.8.8:53 56.163.245.4.in-addr.arpa udp
US 8.8.8.8:53 206.23.85.13.in-addr.arpa udp
US 8.8.8.8:53 172.210.232.199.in-addr.arpa udp
US 192.169.69.26:4230 marzorevenger.duckdns.org tcp
US 192.169.69.26:4230 marzorevenger.duckdns.org tcp
US 192.169.69.26:4230 marzorevenger.duckdns.org tcp
US 192.169.69.26:4230 marzorevenger.duckdns.org tcp
US 192.169.69.26:4230 marzorevenger.duckdns.org tcp
US 192.169.69.26:4230 marzorevenger.duckdns.org tcp
US 192.169.69.26:4230 marzorevenger.duckdns.org tcp
US 192.169.69.26:4230 marzorevenger.duckdns.org tcp
US 8.8.8.8:53 marzorevenger.duckdns.org udp
US 192.169.69.26:4230 marzorevenger.duckdns.org tcp
US 8.8.8.8:53 83.210.23.2.in-addr.arpa udp
US 192.169.69.26:4230 marzorevenger.duckdns.org tcp
US 192.169.69.26:4230 marzorevenger.duckdns.org tcp
US 192.169.69.26:4230 marzorevenger.duckdns.org tcp
US 192.169.69.26:4230 marzorevenger.duckdns.org tcp
US 192.169.69.26:4230 marzorevenger.duckdns.org tcp
US 192.169.69.26:4230 marzorevenger.duckdns.org tcp
US 192.169.69.26:4230 marzorevenger.duckdns.org tcp
US 192.169.69.26:4230 marzorevenger.duckdns.org tcp
US 8.8.8.8:53 29.243.111.52.in-addr.arpa udp
US 192.169.69.26:4230 marzorevenger.duckdns.org tcp
US 192.169.69.26:4230 marzorevenger.duckdns.org tcp
US 192.169.69.26:4230 marzorevenger.duckdns.org tcp
US 192.169.69.26:4230 marzorevenger.duckdns.org tcp
US 192.169.69.26:4230 marzorevenger.duckdns.org tcp
US 192.169.69.26:4230 marzorevenger.duckdns.org tcp
US 192.169.69.26:4230 marzorevenger.duckdns.org tcp

Files

memory/2408-0-0x0000000002620000-0x0000000002621000-memory.dmp

memory/4008-1-0x0000000000400000-0x0000000000408000-memory.dmp

memory/4008-5-0x0000000073B62000-0x0000000073B63000-memory.dmp

memory/4008-6-0x0000000073B60000-0x0000000074111000-memory.dmp

memory/4008-7-0x0000000073B60000-0x0000000074111000-memory.dmp

memory/4008-8-0x0000000073B62000-0x0000000073B63000-memory.dmp

memory/4008-9-0x0000000073B60000-0x0000000074111000-memory.dmp

memory/4008-10-0x0000000073B60000-0x0000000074111000-memory.dmp