Malware Analysis Report

2024-10-23 21:20

Sample ID 240824-p21nwa1bkb
Target 81952458dd5f25e4b7929cfbb5b0e340N.exe
SHA256 e43cb78e0fc4e7861b9870f25f9102c55b47c9a0d272db53e1f91f5cab74f286
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

e43cb78e0fc4e7861b9870f25f9102c55b47c9a0d272db53e1f91f5cab74f286

Threat Level: Known bad

The file 81952458dd5f25e4b7929cfbb5b0e340N.exe was found to be: Known bad.

Malicious Activity Summary

revengerat marzo26 discovery trojan

RevengeRAT

Drops startup file

Suspicious use of SetThreadContext

AutoIT Executable

System Location Discovery: System Language Discovery

Unsigned PE

Suspicious use of AdjustPrivilegeToken

Suspicious use of SendNotifyMessage

Suspicious use of FindShellTrayWindow

Suspicious use of WriteProcessMemory

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-08-24 12:50

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

2024-08-24 12:50

Reported

2024-08-24 12:52

Platform

win7-20240704-en

Max time kernel

119s

Max time network

120s

Command Line

"C:\Users\Admin\AppData\Local\Temp\81952458dd5f25e4b7929cfbb5b0e340N.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\81952458dd5f25e4b7929cfbb5b0e340N.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 2636 set thread context of 2728 N/A C:\Users\Admin\AppData\Local\Temp\81952458dd5f25e4b7929cfbb5b0e340N.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\81952458dd5f25e4b7929cfbb5b0e340N.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 2636 wrote to memory of 2728 N/A C:\Users\Admin\AppData\Local\Temp\81952458dd5f25e4b7929cfbb5b0e340N.exe C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe
PID 2636 wrote to memory of 2728 N/A C:\Users\Admin\AppData\Local\Temp\81952458dd5f25e4b7929cfbb5b0e340N.exe C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe
PID 2636 wrote to memory of 2728 N/A C:\Users\Admin\AppData\Local\Temp\81952458dd5f25e4b7929cfbb5b0e340N.exe C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe
PID 2636 wrote to memory of 2728 N/A C:\Users\Admin\AppData\Local\Temp\81952458dd5f25e4b7929cfbb5b0e340N.exe C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe
PID 2636 wrote to memory of 2728 N/A C:\Users\Admin\AppData\Local\Temp\81952458dd5f25e4b7929cfbb5b0e340N.exe C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe
PID 2636 wrote to memory of 2728 N/A C:\Users\Admin\AppData\Local\Temp\81952458dd5f25e4b7929cfbb5b0e340N.exe C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe
PID 2636 wrote to memory of 2728 N/A C:\Users\Admin\AppData\Local\Temp\81952458dd5f25e4b7929cfbb5b0e340N.exe C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe
PID 2636 wrote to memory of 2728 N/A C:\Users\Admin\AppData\Local\Temp\81952458dd5f25e4b7929cfbb5b0e340N.exe C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe
PID 2636 wrote to memory of 2728 N/A C:\Users\Admin\AppData\Local\Temp\81952458dd5f25e4b7929cfbb5b0e340N.exe C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe

Processes

C:\Users\Admin\AppData\Local\Temp\81952458dd5f25e4b7929cfbb5b0e340N.exe

"C:\Users\Admin\AppData\Local\Temp\81952458dd5f25e4b7929cfbb5b0e340N.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

Files

memory/2636-0-0x0000000001060000-0x0000000001153000-memory.dmp

memory/2636-1-0x0000000000630000-0x0000000000631000-memory.dmp

memory/2728-2-0x0000000000400000-0x0000000000408000-memory.dmp

memory/2728-6-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

memory/2728-3-0x0000000000400000-0x0000000000408000-memory.dmp

memory/2728-9-0x0000000000400000-0x0000000000408000-memory.dmp

memory/2728-8-0x0000000000400000-0x0000000000408000-memory.dmp

memory/2728-10-0x0000000073FE2000-0x0000000073FE4000-memory.dmp

memory/2636-11-0x0000000001060000-0x0000000001153000-memory.dmp

memory/2728-12-0x0000000073FE2000-0x0000000073FE4000-memory.dmp

memory/2636-16-0x0000000001060000-0x0000000001153000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-08-24 12:50

Reported

2024-08-24 12:52

Platform

win10v2004-20240802-en

Max time kernel

114s

Max time network

119s

Command Line

"C:\Users\Admin\AppData\Local\Temp\81952458dd5f25e4b7929cfbb5b0e340N.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\81952458dd5f25e4b7929cfbb5b0e340N.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 2248 set thread context of 5028 N/A C:\Users\Admin\AppData\Local\Temp\81952458dd5f25e4b7929cfbb5b0e340N.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\81952458dd5f25e4b7929cfbb5b0e340N.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\81952458dd5f25e4b7929cfbb5b0e340N.exe

"C:\Users\Admin\AppData\Local\Temp\81952458dd5f25e4b7929cfbb5b0e340N.exe"

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

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

C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe

"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --field-trial-handle=4316,i,10065386245627775856,6567048529106473151,262144 --variations-seed-version --mojo-platform-channel-handle=4280 /prefetch:8

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 8.8.8.8.in-addr.arpa udp
US 8.8.8.8:53 marzorevenger.duckdns.org udp
US 8.8.8.8:53 g.bing.com udp
US 150.171.28.10:443 g.bing.com tcp
US 8.8.8.8:53 133.32.126.40.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 10.28.171.150.in-addr.arpa udp
US 8.8.8.8:53 43.58.199.20.in-addr.arpa udp
CO 186.85.86.137:4230 marzorevenger.duckdns.org tcp
US 8.8.8.8:53 154.239.44.20.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 8.8.8.8:53 198.187.3.20.in-addr.arpa udp
US 8.8.8.8:53 65.139.73.23.in-addr.arpa udp
CO 186.85.86.137:4230 marzorevenger.duckdns.org tcp
US 8.8.8.8:53 14.227.111.52.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 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

Files

memory/2248-0-0x0000000000060000-0x0000000000153000-memory.dmp

memory/2248-1-0x0000000002940000-0x0000000002941000-memory.dmp

memory/5028-2-0x0000000000400000-0x0000000000408000-memory.dmp

memory/5028-6-0x0000000073AA2000-0x0000000073AA3000-memory.dmp

memory/5028-7-0x0000000073AA0000-0x0000000074051000-memory.dmp

memory/5028-8-0x0000000073AA0000-0x0000000074051000-memory.dmp

memory/2248-9-0x0000000000060000-0x0000000000153000-memory.dmp

memory/5028-10-0x0000000073AA2000-0x0000000073AA3000-memory.dmp

memory/5028-11-0x0000000073AA0000-0x0000000074051000-memory.dmp

memory/2248-15-0x0000000000060000-0x0000000000153000-memory.dmp