Malware Analysis Report

2024-10-23 21:20

Sample ID 240829-smbyrazflr
Target 491f7eb35995a90505019c995e9bcd29d75167f8770e74747893807f420b107e.exe
SHA256 491f7eb35995a90505019c995e9bcd29d75167f8770e74747893807f420b107e
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

491f7eb35995a90505019c995e9bcd29d75167f8770e74747893807f420b107e

Threat Level: Known bad

The file 491f7eb35995a90505019c995e9bcd29d75167f8770e74747893807f420b107e.exe 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 SendNotifyMessage

Suspicious use of WriteProcessMemory

Suspicious use of AdjustPrivilegeToken

Suspicious use of FindShellTrayWindow

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-08-29 15:14

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

2024-08-29 15:14

Reported

2024-08-29 15:16

Platform

win7-20240708-en

Max time kernel

149s

Max time network

150s

Command Line

"C:\Users\Admin\AppData\Local\Temp\491f7eb35995a90505019c995e9bcd29d75167f8770e74747893807f420b107e.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\491f7eb35995a90505019c995e9bcd29d75167f8770e74747893807f420b107e.exe N/A

Suspicious use of SetThreadContext

Description Indicator Process Target
PID 1768 set thread context of 2084 N/A C:\Users\Admin\AppData\Local\Temp\491f7eb35995a90505019c995e9bcd29d75167f8770e74747893807f420b107e.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\491f7eb35995a90505019c995e9bcd29d75167f8770e74747893807f420b107e.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 1768 wrote to memory of 2084 N/A C:\Users\Admin\AppData\Local\Temp\491f7eb35995a90505019c995e9bcd29d75167f8770e74747893807f420b107e.exe C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe
PID 1768 wrote to memory of 2084 N/A C:\Users\Admin\AppData\Local\Temp\491f7eb35995a90505019c995e9bcd29d75167f8770e74747893807f420b107e.exe C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe
PID 1768 wrote to memory of 2084 N/A C:\Users\Admin\AppData\Local\Temp\491f7eb35995a90505019c995e9bcd29d75167f8770e74747893807f420b107e.exe C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe
PID 1768 wrote to memory of 2084 N/A C:\Users\Admin\AppData\Local\Temp\491f7eb35995a90505019c995e9bcd29d75167f8770e74747893807f420b107e.exe C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe
PID 1768 wrote to memory of 2084 N/A C:\Users\Admin\AppData\Local\Temp\491f7eb35995a90505019c995e9bcd29d75167f8770e74747893807f420b107e.exe C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe
PID 1768 wrote to memory of 2084 N/A C:\Users\Admin\AppData\Local\Temp\491f7eb35995a90505019c995e9bcd29d75167f8770e74747893807f420b107e.exe C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe
PID 1768 wrote to memory of 2084 N/A C:\Users\Admin\AppData\Local\Temp\491f7eb35995a90505019c995e9bcd29d75167f8770e74747893807f420b107e.exe C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe
PID 1768 wrote to memory of 2084 N/A C:\Users\Admin\AppData\Local\Temp\491f7eb35995a90505019c995e9bcd29d75167f8770e74747893807f420b107e.exe C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe
PID 1768 wrote to memory of 2084 N/A C:\Users\Admin\AppData\Local\Temp\491f7eb35995a90505019c995e9bcd29d75167f8770e74747893807f420b107e.exe C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe

Processes

C:\Users\Admin\AppData\Local\Temp\491f7eb35995a90505019c995e9bcd29d75167f8770e74747893807f420b107e.exe

"C:\Users\Admin\AppData\Local\Temp\491f7eb35995a90505019c995e9bcd29d75167f8770e74747893807f420b107e.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
US 8.8.8.8:53 marzorevenger.duckdns.org udp

Files

memory/1768-0-0x0000000000250000-0x0000000000251000-memory.dmp

memory/2084-5-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

memory/2084-2-0x0000000000400000-0x0000000000408000-memory.dmp

memory/2084-1-0x0000000000400000-0x0000000000408000-memory.dmp

memory/2084-7-0x0000000000400000-0x0000000000408000-memory.dmp

memory/2084-8-0x0000000000400000-0x0000000000408000-memory.dmp

memory/2084-9-0x0000000074042000-0x0000000074044000-memory.dmp

memory/2084-10-0x0000000074042000-0x0000000074044000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-08-29 15:14

Reported

2024-08-29 15:16

Platform

win10v2004-20240802-en

Max time kernel

143s

Max time network

149s

Command Line

"C:\Users\Admin\AppData\Local\Temp\491f7eb35995a90505019c995e9bcd29d75167f8770e74747893807f420b107e.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\491f7eb35995a90505019c995e9bcd29d75167f8770e74747893807f420b107e.exe N/A

Suspicious use of SetThreadContext

Description Indicator Process Target
PID 1404 set thread context of 3592 N/A C:\Users\Admin\AppData\Local\Temp\491f7eb35995a90505019c995e9bcd29d75167f8770e74747893807f420b107e.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\491f7eb35995a90505019c995e9bcd29d75167f8770e74747893807f420b107e.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\491f7eb35995a90505019c995e9bcd29d75167f8770e74747893807f420b107e.exe

"C:\Users\Admin\AppData\Local\Temp\491f7eb35995a90505019c995e9bcd29d75167f8770e74747893807f420b107e.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 8.8.8.8:53 149.220.183.52.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 8.8.8.8:53 133.32.126.40.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 43.58.199.20.in-addr.arpa udp
CO 186.85.86.137:4230 marzorevenger.duckdns.org tcp
US 8.8.8.8:53 50.23.12.20.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
CO 186.85.86.137:4230 marzorevenger.duckdns.org tcp
US 8.8.8.8:53 73.144.22.2.in-addr.arpa 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
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 10.27.171.150.in-addr.arpa udp
CO 186.85.86.137:4230 marzorevenger.duckdns.org tcp
US 8.8.8.8:53 marzorevenger.duckdns.org udp

Files

memory/3592-1-0x0000000000400000-0x0000000000408000-memory.dmp

memory/1404-0-0x0000000000DF0000-0x0000000000DF1000-memory.dmp

memory/3592-5-0x0000000074152000-0x0000000074153000-memory.dmp

memory/3592-6-0x0000000074150000-0x0000000074701000-memory.dmp

memory/3592-7-0x0000000074150000-0x0000000074701000-memory.dmp

memory/3592-8-0x0000000074152000-0x0000000074153000-memory.dmp

memory/3592-9-0x0000000074150000-0x0000000074701000-memory.dmp