Malware Analysis Report

2024-10-19 08:32

Sample ID 240817-dy8pjavckg
Target a691f6f8e00fdd33e850cd44f5c5f4692c82954afdaf185b7d939e1f7f39c306
SHA256 a691f6f8e00fdd33e850cd44f5c5f4692c82954afdaf185b7d939e1f7f39c306
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

a691f6f8e00fdd33e850cd44f5c5f4692c82954afdaf185b7d939e1f7f39c306

Threat Level: Known bad

The file a691f6f8e00fdd33e850cd44f5c5f4692c82954afdaf185b7d939e1f7f39c306 was found to be: Known bad.

Malicious Activity Summary

revengerat marzo26 discovery trojan

RevengeRAT

Drops startup file

AutoIT Executable

Suspicious use of SetThreadContext

Unsigned PE

System Location Discovery: System Language Discovery

Suspicious use of FindShellTrayWindow

Suspicious use of WriteProcessMemory

Suspicious use of AdjustPrivilegeToken

Suspicious use of SendNotifyMessage

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-08-17 03:26

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

2024-08-17 03:26

Reported

2024-08-17 03:28

Platform

win7-20240708-en

Max time kernel

147s

Max time network

149s

Command Line

"C:\Users\Admin\AppData\Local\Temp\a691f6f8e00fdd33e850cd44f5c5f4692c82954afdaf185b7d939e1f7f39c306.exe"

Signatures

RevengeRAT

trojan 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\a691f6f8e00fdd33e850cd44f5c5f4692c82954afdaf185b7d939e1f7f39c306.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 2360 set thread context of 2408 N/A C:\Users\Admin\AppData\Local\Temp\a691f6f8e00fdd33e850cd44f5c5f4692c82954afdaf185b7d939e1f7f39c306.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\a691f6f8e00fdd33e850cd44f5c5f4692c82954afdaf185b7d939e1f7f39c306.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language 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 2360 wrote to memory of 2408 N/A C:\Users\Admin\AppData\Local\Temp\a691f6f8e00fdd33e850cd44f5c5f4692c82954afdaf185b7d939e1f7f39c306.exe C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe
PID 2360 wrote to memory of 2408 N/A C:\Users\Admin\AppData\Local\Temp\a691f6f8e00fdd33e850cd44f5c5f4692c82954afdaf185b7d939e1f7f39c306.exe C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe
PID 2360 wrote to memory of 2408 N/A C:\Users\Admin\AppData\Local\Temp\a691f6f8e00fdd33e850cd44f5c5f4692c82954afdaf185b7d939e1f7f39c306.exe C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe
PID 2360 wrote to memory of 2408 N/A C:\Users\Admin\AppData\Local\Temp\a691f6f8e00fdd33e850cd44f5c5f4692c82954afdaf185b7d939e1f7f39c306.exe C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe
PID 2360 wrote to memory of 2408 N/A C:\Users\Admin\AppData\Local\Temp\a691f6f8e00fdd33e850cd44f5c5f4692c82954afdaf185b7d939e1f7f39c306.exe C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe
PID 2360 wrote to memory of 2408 N/A C:\Users\Admin\AppData\Local\Temp\a691f6f8e00fdd33e850cd44f5c5f4692c82954afdaf185b7d939e1f7f39c306.exe C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe
PID 2360 wrote to memory of 2408 N/A C:\Users\Admin\AppData\Local\Temp\a691f6f8e00fdd33e850cd44f5c5f4692c82954afdaf185b7d939e1f7f39c306.exe C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe
PID 2360 wrote to memory of 2408 N/A C:\Users\Admin\AppData\Local\Temp\a691f6f8e00fdd33e850cd44f5c5f4692c82954afdaf185b7d939e1f7f39c306.exe C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe
PID 2360 wrote to memory of 2408 N/A C:\Users\Admin\AppData\Local\Temp\a691f6f8e00fdd33e850cd44f5c5f4692c82954afdaf185b7d939e1f7f39c306.exe C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe

Processes

C:\Users\Admin\AppData\Local\Temp\a691f6f8e00fdd33e850cd44f5c5f4692c82954afdaf185b7d939e1f7f39c306.exe

"C:\Users\Admin\AppData\Local\Temp\a691f6f8e00fdd33e850cd44f5c5f4692c82954afdaf185b7d939e1f7f39c306.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
CO 186.85.86.137:4230 marzorevenger.duckdns.org tcp
CO 186.85.86.137:4230 marzorevenger.duckdns.org tcp
CO 186.85.86.137:4230 marzorevenger.duckdns.org tcp
US 8.8.8.8:53 marzorevenger.duckdns.org udp
CO 186.85.86.137:4230 marzorevenger.duckdns.org tcp
CO 186.85.86.137:4230 marzorevenger.duckdns.org tcp
CO 186.85.86.137:4230 marzorevenger.duckdns.org tcp
US 8.8.8.8:53 marzorevenger.duckdns.org udp
CO 186.85.86.137:4230 marzorevenger.duckdns.org tcp

Files

memory/2360-0-0x0000000000A50000-0x0000000000B43000-memory.dmp

memory/2360-1-0x00000000000B0000-0x00000000000B1000-memory.dmp

memory/2408-2-0x0000000000090000-0x0000000000098000-memory.dmp

memory/2408-7-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

memory/2408-10-0x0000000000090000-0x0000000000098000-memory.dmp

memory/2408-9-0x0000000000090000-0x0000000000098000-memory.dmp

memory/2408-4-0x0000000000090000-0x0000000000098000-memory.dmp

memory/2408-11-0x00000000746D2000-0x00000000746D4000-memory.dmp

memory/2360-12-0x0000000000A50000-0x0000000000B43000-memory.dmp

memory/2408-13-0x00000000746D2000-0x00000000746D4000-memory.dmp

memory/2360-17-0x0000000000A50000-0x0000000000B43000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-08-17 03:26

Reported

2024-08-17 03:28

Platform

win10v2004-20240802-en

Max time kernel

145s

Max time network

150s

Command Line

"C:\Users\Admin\AppData\Local\Temp\a691f6f8e00fdd33e850cd44f5c5f4692c82954afdaf185b7d939e1f7f39c306.exe"

Signatures

RevengeRAT

trojan 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\a691f6f8e00fdd33e850cd44f5c5f4692c82954afdaf185b7d939e1f7f39c306.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 4560 set thread context of 1972 N/A C:\Users\Admin\AppData\Local\Temp\a691f6f8e00fdd33e850cd44f5c5f4692c82954afdaf185b7d939e1f7f39c306.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\a691f6f8e00fdd33e850cd44f5c5f4692c82954afdaf185b7d939e1f7f39c306.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language 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\a691f6f8e00fdd33e850cd44f5c5f4692c82954afdaf185b7d939e1f7f39c306.exe

"C:\Users\Admin\AppData\Local\Temp\a691f6f8e00fdd33e850cd44f5c5f4692c82954afdaf185b7d939e1f7f39c306.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 8.8.8.8:53 133.211.185.52.in-addr.arpa udp
US 8.8.8.8:53 marzorevenger.duckdns.org udp
CO 186.85.86.137:4230 marzorevenger.duckdns.org tcp
US 8.8.8.8:53 81.144.22.2.in-addr.arpa udp
US 8.8.8.8:53 g.bing.com udp
US 13.107.21.237:443 g.bing.com tcp
US 8.8.8.8:53 237.21.107.13.in-addr.arpa udp
US 8.8.8.8:53 68.32.126.40.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 205.47.74.20.in-addr.arpa udp
US 8.8.8.8:53 232.168.11.51.in-addr.arpa udp
CO 186.85.86.137:4230 marzorevenger.duckdns.org tcp
US 8.8.8.8:53 103.169.127.40.in-addr.arpa udp
US 8.8.8.8:53 171.39.242.20.in-addr.arpa udp
US 8.8.8.8:53 147.142.123.92.in-addr.arpa udp
CO 186.85.86.137:4230 marzorevenger.duckdns.org tcp
US 52.111.227.11:443 tcp
US 8.8.8.8:53 marzorevenger.duckdns.org udp
CO 186.85.86.137:4230 marzorevenger.duckdns.org tcp
US 8.8.8.8:53 48.229.111.52.in-addr.arpa udp
US 8.8.8.8:53 240.221.184.93.in-addr.arpa udp
CO 186.85.86.137:4230 marzorevenger.duckdns.org tcp
US 8.8.8.8:53 tse1.mm.bing.net udp
US 150.171.28.10:443 tse1.mm.bing.net tcp
US 150.171.28.10:443 tse1.mm.bing.net tcp
US 150.171.28.10:443 tse1.mm.bing.net tcp
US 150.171.28.10:443 tse1.mm.bing.net tcp
US 150.171.28.10:443 tse1.mm.bing.net tcp
CO 186.85.86.137:4230 marzorevenger.duckdns.org tcp
US 8.8.8.8:53 marzorevenger.duckdns.org udp
CO 186.85.86.137:4230 marzorevenger.duckdns.org tcp

Files

memory/4560-0-0x0000000000E20000-0x0000000000F13000-memory.dmp

memory/4560-1-0x0000000001710000-0x0000000001711000-memory.dmp

memory/1972-2-0x0000000000400000-0x0000000000408000-memory.dmp

memory/1972-6-0x0000000073BC2000-0x0000000073BC3000-memory.dmp

memory/1972-7-0x0000000073BC0000-0x0000000074171000-memory.dmp

memory/1972-8-0x0000000073BC0000-0x0000000074171000-memory.dmp

memory/4560-9-0x0000000000E20000-0x0000000000F13000-memory.dmp

memory/1972-10-0x0000000073BC2000-0x0000000073BC3000-memory.dmp

memory/1972-11-0x0000000073BC0000-0x0000000074171000-memory.dmp

memory/4560-15-0x0000000000E20000-0x0000000000F13000-memory.dmp