Malware Analysis Report

2025-01-18 03:01

Sample ID 241202-zrbbcayjen
Target 3837831ce8b944076c88e4341840d20daa4c84e22fc64ce4c6a6f971e2bda8c5
SHA256 3837831ce8b944076c88e4341840d20daa4c84e22fc64ce4c6a6f971e2bda8c5
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

3837831ce8b944076c88e4341840d20daa4c84e22fc64ce4c6a6f971e2bda8c5

Threat Level: Known bad

The file 3837831ce8b944076c88e4341840d20daa4c84e22fc64ce4c6a6f971e2bda8c5 was found to be: Known bad.

Malicious Activity Summary

revengerat marzo26 discovery trojan

RevengeRAT

Revengerat family

Drops startup file

Suspicious use of SetThreadContext

AutoIT Executable

Unsigned PE

System Location Discovery: System Language Discovery

Suspicious use of AdjustPrivilegeToken

Suspicious use of SendNotifyMessage

Suspicious use of WriteProcessMemory

Checks processor information in registry

Suspicious use of FindShellTrayWindow

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-12-02 20:56

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

2024-12-02 20:56

Reported

2024-12-02 20:59

Platform

win7-20240708-en

Max time kernel

150s

Max time network

149s

Command Line

"C:\Users\Admin\AppData\Local\Temp\3837831ce8b944076c88e4341840d20daa4c84e22fc64ce4c6a6f971e2bda8c5.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\3837831ce8b944076c88e4341840d20daa4c84e22fc64ce4c6a6f971e2bda8c5.exe N/A

AutoIT Executable

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

Suspicious use of SetThreadContext

Description Indicator Process Target
PID 2028 set thread context of 2768 N/A C:\Users\Admin\AppData\Local\Temp\3837831ce8b944076c88e4341840d20daa4c84e22fc64ce4c6a6f971e2bda8c5.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\3837831ce8b944076c88e4341840d20daa4c84e22fc64ce4c6a6f971e2bda8c5.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 2028 wrote to memory of 2768 N/A C:\Users\Admin\AppData\Local\Temp\3837831ce8b944076c88e4341840d20daa4c84e22fc64ce4c6a6f971e2bda8c5.exe C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe
PID 2028 wrote to memory of 2768 N/A C:\Users\Admin\AppData\Local\Temp\3837831ce8b944076c88e4341840d20daa4c84e22fc64ce4c6a6f971e2bda8c5.exe C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe
PID 2028 wrote to memory of 2768 N/A C:\Users\Admin\AppData\Local\Temp\3837831ce8b944076c88e4341840d20daa4c84e22fc64ce4c6a6f971e2bda8c5.exe C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe
PID 2028 wrote to memory of 2768 N/A C:\Users\Admin\AppData\Local\Temp\3837831ce8b944076c88e4341840d20daa4c84e22fc64ce4c6a6f971e2bda8c5.exe C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe
PID 2028 wrote to memory of 2768 N/A C:\Users\Admin\AppData\Local\Temp\3837831ce8b944076c88e4341840d20daa4c84e22fc64ce4c6a6f971e2bda8c5.exe C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe
PID 2028 wrote to memory of 2768 N/A C:\Users\Admin\AppData\Local\Temp\3837831ce8b944076c88e4341840d20daa4c84e22fc64ce4c6a6f971e2bda8c5.exe C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe
PID 2028 wrote to memory of 2768 N/A C:\Users\Admin\AppData\Local\Temp\3837831ce8b944076c88e4341840d20daa4c84e22fc64ce4c6a6f971e2bda8c5.exe C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe
PID 2028 wrote to memory of 2768 N/A C:\Users\Admin\AppData\Local\Temp\3837831ce8b944076c88e4341840d20daa4c84e22fc64ce4c6a6f971e2bda8c5.exe C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe
PID 2028 wrote to memory of 2768 N/A C:\Users\Admin\AppData\Local\Temp\3837831ce8b944076c88e4341840d20daa4c84e22fc64ce4c6a6f971e2bda8c5.exe C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe

Processes

C:\Users\Admin\AppData\Local\Temp\3837831ce8b944076c88e4341840d20daa4c84e22fc64ce4c6a6f971e2bda8c5.exe

"C:\Users\Admin\AppData\Local\Temp\3837831ce8b944076c88e4341840d20daa4c84e22fc64ce4c6a6f971e2bda8c5.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 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 tcp

Files

memory/2028-0-0x00000000001C0000-0x00000000002B3000-memory.dmp

memory/2028-1-0x0000000000160000-0x0000000000161000-memory.dmp

memory/2768-6-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

memory/2768-3-0x0000000000400000-0x0000000000408000-memory.dmp

memory/2768-2-0x0000000000400000-0x0000000000408000-memory.dmp

memory/2768-9-0x0000000000400000-0x0000000000408000-memory.dmp

memory/2768-8-0x0000000000400000-0x0000000000408000-memory.dmp

memory/2768-10-0x00000000748D2000-0x00000000748D4000-memory.dmp

memory/2028-11-0x00000000001C0000-0x00000000002B3000-memory.dmp

memory/2768-12-0x00000000748D2000-0x00000000748D4000-memory.dmp

memory/2028-16-0x00000000001C0000-0x00000000002B3000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-12-02 20:56

Reported

2024-12-02 20:59

Platform

win10v2004-20241007-en

Max time kernel

148s

Max time network

157s

Command Line

"C:\Users\Admin\AppData\Local\Temp\3837831ce8b944076c88e4341840d20daa4c84e22fc64ce4c6a6f971e2bda8c5.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\3837831ce8b944076c88e4341840d20daa4c84e22fc64ce4c6a6f971e2bda8c5.exe N/A

AutoIT Executable

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

Suspicious use of SetThreadContext

Description Indicator Process Target
PID 5088 set thread context of 1172 N/A C:\Users\Admin\AppData\Local\Temp\3837831ce8b944076c88e4341840d20daa4c84e22fc64ce4c6a6f971e2bda8c5.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:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Users\Admin\AppData\Local\Temp\3837831ce8b944076c88e4341840d20daa4c84e22fc64ce4c6a6f971e2bda8c5.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\3837831ce8b944076c88e4341840d20daa4c84e22fc64ce4c6a6f971e2bda8c5.exe

"C:\Users\Admin\AppData\Local\Temp\3837831ce8b944076c88e4341840d20daa4c84e22fc64ce4c6a6f971e2bda8c5.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 8.8.8.8:53 196.249.167.52.in-addr.arpa udp
US 8.8.8.8:53 135.121.18.2.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 0.159.190.20.in-addr.arpa udp
US 8.8.8.8:53 26.69.169.192.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 8.8.8.8:53 104.219.191.52.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 8.8.8.8:53 56.163.245.4.in-addr.arpa udp
US 192.169.69.26:4230 marzorevenger.duckdns.org tcp
US 8.8.8.8:53 18.31.95.13.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 8.8.8.8:53 142.121.18.2.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 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 43.229.111.52.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
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

Files

memory/5088-0-0x0000000000390000-0x0000000000483000-memory.dmp

memory/5088-1-0x0000000000E30000-0x0000000000E31000-memory.dmp

memory/1172-3-0x0000000000400000-0x0000000000408000-memory.dmp

memory/1172-6-0x0000000073782000-0x0000000073783000-memory.dmp

memory/1172-7-0x0000000073780000-0x0000000073D31000-memory.dmp

memory/1172-8-0x0000000073780000-0x0000000073D31000-memory.dmp

memory/5088-9-0x0000000000390000-0x0000000000483000-memory.dmp

memory/1172-10-0x0000000073782000-0x0000000073783000-memory.dmp

memory/1172-11-0x0000000073780000-0x0000000073D31000-memory.dmp

memory/1172-12-0x0000000073780000-0x0000000073D31000-memory.dmp

memory/5088-16-0x0000000000390000-0x0000000000483000-memory.dmp