Malware Analysis Report

2024-10-19 08:32

Sample ID 240817-graeya1alg
Target dc9f9ea5a8dc888825beff4a93f9b4909d4f55b83d1bb19360aec3e5aa53568d
SHA256 dc9f9ea5a8dc888825beff4a93f9b4909d4f55b83d1bb19360aec3e5aa53568d
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

dc9f9ea5a8dc888825beff4a93f9b4909d4f55b83d1bb19360aec3e5aa53568d

Threat Level: Known bad

The file dc9f9ea5a8dc888825beff4a93f9b4909d4f55b83d1bb19360aec3e5aa53568d was found to be: Known bad.

Malicious Activity Summary

revengerat marzo26 discovery trojan

RevengeRAT

Drops startup file

Suspicious use of SetThreadContext

AutoIT Executable

Unsigned PE

System Location Discovery: System Language Discovery

Suspicious use of AdjustPrivilegeToken

Suspicious use of FindShellTrayWindow

Suspicious use of WriteProcessMemory

Suspicious use of SendNotifyMessage

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-08-17 06:01

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

2024-08-17 06:01

Reported

2024-08-17 06:04

Platform

win7-20240704-en

Max time kernel

127s

Max time network

142s

Command Line

"C:\Users\Admin\AppData\Local\Temp\dc9f9ea5a8dc888825beff4a93f9b4909d4f55b83d1bb19360aec3e5aa53568d.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\dc9f9ea5a8dc888825beff4a93f9b4909d4f55b83d1bb19360aec3e5aa53568d.exe N/A

Suspicious use of SetThreadContext

Description Indicator Process Target
PID 2488 set thread context of 1948 N/A C:\Users\Admin\AppData\Local\Temp\dc9f9ea5a8dc888825beff4a93f9b4909d4f55b83d1bb19360aec3e5aa53568d.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\dc9f9ea5a8dc888825beff4a93f9b4909d4f55b83d1bb19360aec3e5aa53568d.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 2488 wrote to memory of 1948 N/A C:\Users\Admin\AppData\Local\Temp\dc9f9ea5a8dc888825beff4a93f9b4909d4f55b83d1bb19360aec3e5aa53568d.exe C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe
PID 2488 wrote to memory of 1948 N/A C:\Users\Admin\AppData\Local\Temp\dc9f9ea5a8dc888825beff4a93f9b4909d4f55b83d1bb19360aec3e5aa53568d.exe C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe
PID 2488 wrote to memory of 1948 N/A C:\Users\Admin\AppData\Local\Temp\dc9f9ea5a8dc888825beff4a93f9b4909d4f55b83d1bb19360aec3e5aa53568d.exe C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe
PID 2488 wrote to memory of 1948 N/A C:\Users\Admin\AppData\Local\Temp\dc9f9ea5a8dc888825beff4a93f9b4909d4f55b83d1bb19360aec3e5aa53568d.exe C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe
PID 2488 wrote to memory of 1948 N/A C:\Users\Admin\AppData\Local\Temp\dc9f9ea5a8dc888825beff4a93f9b4909d4f55b83d1bb19360aec3e5aa53568d.exe C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe
PID 2488 wrote to memory of 1948 N/A C:\Users\Admin\AppData\Local\Temp\dc9f9ea5a8dc888825beff4a93f9b4909d4f55b83d1bb19360aec3e5aa53568d.exe C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe
PID 2488 wrote to memory of 1948 N/A C:\Users\Admin\AppData\Local\Temp\dc9f9ea5a8dc888825beff4a93f9b4909d4f55b83d1bb19360aec3e5aa53568d.exe C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe
PID 2488 wrote to memory of 1948 N/A C:\Users\Admin\AppData\Local\Temp\dc9f9ea5a8dc888825beff4a93f9b4909d4f55b83d1bb19360aec3e5aa53568d.exe C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe
PID 2488 wrote to memory of 1948 N/A C:\Users\Admin\AppData\Local\Temp\dc9f9ea5a8dc888825beff4a93f9b4909d4f55b83d1bb19360aec3e5aa53568d.exe C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe

Processes

C:\Users\Admin\AppData\Local\Temp\dc9f9ea5a8dc888825beff4a93f9b4909d4f55b83d1bb19360aec3e5aa53568d.exe

"C:\Users\Admin\AppData\Local\Temp\dc9f9ea5a8dc888825beff4a93f9b4909d4f55b83d1bb19360aec3e5aa53568d.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 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/2488-0-0x00000000001A0000-0x00000000001A1000-memory.dmp

memory/1948-2-0x0000000000400000-0x0000000000408000-memory.dmp

memory/1948-1-0x0000000000400000-0x0000000000408000-memory.dmp

memory/1948-5-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

memory/1948-7-0x0000000000400000-0x0000000000408000-memory.dmp

memory/1948-8-0x0000000000400000-0x0000000000408000-memory.dmp

memory/1948-9-0x0000000073C52000-0x0000000073C54000-memory.dmp

memory/1948-10-0x0000000073C52000-0x0000000073C54000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-08-17 06:01

Reported

2024-08-17 06:04

Platform

win10v2004-20240802-en

Max time kernel

149s

Max time network

150s

Command Line

"C:\Users\Admin\AppData\Local\Temp\dc9f9ea5a8dc888825beff4a93f9b4909d4f55b83d1bb19360aec3e5aa53568d.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\dc9f9ea5a8dc888825beff4a93f9b4909d4f55b83d1bb19360aec3e5aa53568d.exe N/A

Suspicious use of SetThreadContext

Description Indicator Process Target
PID 3264 set thread context of 4556 N/A C:\Users\Admin\AppData\Local\Temp\dc9f9ea5a8dc888825beff4a93f9b4909d4f55b83d1bb19360aec3e5aa53568d.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\dc9f9ea5a8dc888825beff4a93f9b4909d4f55b83d1bb19360aec3e5aa53568d.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\dc9f9ea5a8dc888825beff4a93f9b4909d4f55b83d1bb19360aec3e5aa53568d.exe

"C:\Users\Admin\AppData\Local\Temp\dc9f9ea5a8dc888825beff4a93f9b4909d4f55b83d1bb19360aec3e5aa53568d.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 97.17.167.52.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 204.79.197.237:443 g.bing.com tcp
US 8.8.8.8:53 172.210.232.199.in-addr.arpa udp
US 8.8.8.8:53 237.197.79.204.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 13.86.106.20.in-addr.arpa udp
CO 186.85.86.137:4230 marzorevenger.duckdns.org tcp
US 8.8.8.8:53 26.165.165.52.in-addr.arpa udp
US 8.8.8.8:53 198.187.3.20.in-addr.arpa udp
US 8.8.8.8:53 172.214.232.199.in-addr.arpa udp
US 8.8.8.8:53 tse1.mm.bing.net udp
US 150.171.27.10:443 tse1.mm.bing.net tcp
US 150.171.27.10:443 tse1.mm.bing.net tcp
US 150.171.27.10:443 tse1.mm.bing.net tcp
US 150.171.27.10:443 tse1.mm.bing.net tcp
US 150.171.27.10:443 tse1.mm.bing.net tcp
US 8.8.8.8:53 26.35.223.20.in-addr.arpa udp
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
US 8.8.8.8:53 48.229.111.52.in-addr.arpa udp
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 tcp

Files

memory/3264-0-0x0000000000B90000-0x0000000000B91000-memory.dmp

memory/4556-1-0x0000000000390000-0x0000000000398000-memory.dmp

memory/4556-5-0x0000000073F52000-0x0000000073F53000-memory.dmp

memory/4556-6-0x0000000073F50000-0x0000000074501000-memory.dmp

memory/4556-7-0x0000000073F50000-0x0000000074501000-memory.dmp

memory/4556-8-0x0000000073F52000-0x0000000073F53000-memory.dmp

memory/4556-9-0x0000000073F50000-0x0000000074501000-memory.dmp