Malware Analysis Report

2024-09-22 07:17

Sample ID 240601-a5brlacd56
Target 2024-06-01_53b2f792d05e22cea3283bbfaa6bb085_megazord
SHA256 8fe0f92974260cf06d5c6db3b5e94bba47e267889314360a086fa54812e7864f
Tags
asyncrat default evasion execution persistence rat trojan
score
10/10

Table of Contents

Analysis Overview

MITRE ATT&CK Matrix

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

8fe0f92974260cf06d5c6db3b5e94bba47e267889314360a086fa54812e7864f

Threat Level: Known bad

The file 2024-06-01_53b2f792d05e22cea3283bbfaa6bb085_megazord was found to be: Known bad.

Malicious Activity Summary

asyncrat default evasion execution persistence rat trojan

UAC bypass

AsyncRat

Detects executables attemping to enumerate video devices using WMI

Detects executables containing the string DcRatBy

Command and Scripting Interpreter: PowerShell

Adds Run key to start application

Checks whether UAC is enabled

Suspicious use of SetThreadContext

Unsigned PE

Program crash

Suspicious behavior: EnumeratesProcesses

Suspicious use of WriteProcessMemory

Suspicious use of AdjustPrivilegeToken

System policy modification

MITRE ATT&CK Matrix V13

Analysis: static1

Detonation Overview

Reported

2024-06-01 00:47

Signatures

Unsigned PE

Description Indicator Process Target
N/A N/A N/A N/A

Analysis: behavioral1

Detonation Overview

Submitted

2024-06-01 00:47

Reported

2024-06-01 00:49

Platform

win7-20240221-en

Max time kernel

135s

Max time network

150s

Command Line

"C:\Users\Admin\AppData\Local\Temp\2024-06-01_53b2f792d05e22cea3283bbfaa6bb085_megazord.exe"

Signatures

AsyncRat

rat asyncrat

UAC bypass

evasion trojan
Description Indicator Process Target
Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0" C:\Users\Admin\AppData\Local\Temp\2024-06-01_53b2f792d05e22cea3283bbfaa6bb085_megazord.exe N/A

Detects executables attemping to enumerate video devices using WMI

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
N/A N/A N/A N/A
N/A N/A N/A N/A

Detects executables containing the string DcRatBy

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
N/A N/A N/A N/A
N/A N/A N/A N/A

Command and Scripting Interpreter: PowerShell

execution
Description Indicator Process Target
N/A N/A C:\Windows\system32\WindowsPowerShell\v1.0\powershell.exe N/A

Adds Run key to start application

persistence
Description Indicator Process Target
Set value (str) \REGISTRY\USER\S-1-5-21-2297530677-1229052932-2803917579-1000\Software\Microsoft\Windows\CurrentVersion\Run\2024-06-01_53b2f792d05e22cea3283bbfaa6bb085_megazord = "\"C:\\Users\\Admin\\2024-06-01_53b2f792d05e22cea3283bbfaa6bb085_megazord.exe\"" C:\Users\Admin\AppData\Local\Temp\2024-06-01_53b2f792d05e22cea3283bbfaa6bb085_megazord.exe N/A

Checks whether UAC is enabled

evasion trojan
Description Indicator Process Target
Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0" C:\Users\Admin\AppData\Local\Temp\2024-06-01_53b2f792d05e22cea3283bbfaa6bb085_megazord.exe N/A

Suspicious use of SetThreadContext

Description Indicator Process Target
PID 2964 set thread context of 2516 N/A C:\Users\Admin\AppData\Local\Temp\2024-06-01_53b2f792d05e22cea3283bbfaa6bb085_megazord.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\jsc.exe

Suspicious behavior: EnumeratesProcesses

Description Indicator Process Target
N/A N/A C:\Windows\system32\WindowsPowerShell\v1.0\powershell.exe N/A

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Local\Temp\2024-06-01_53b2f792d05e22cea3283bbfaa6bb085_megazord.exe N/A
Token: SeDebugPrivilege N/A C:\Windows\system32\WindowsPowerShell\v1.0\powershell.exe N/A
Token: SeDebugPrivilege N/A C:\Windows\Microsoft.NET\Framework\v4.0.30319\jsc.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 2964 wrote to memory of 2996 N/A C:\Users\Admin\AppData\Local\Temp\2024-06-01_53b2f792d05e22cea3283bbfaa6bb085_megazord.exe C:\Windows\system32\WindowsPowerShell\v1.0\powershell.exe
PID 2964 wrote to memory of 2996 N/A C:\Users\Admin\AppData\Local\Temp\2024-06-01_53b2f792d05e22cea3283bbfaa6bb085_megazord.exe C:\Windows\system32\WindowsPowerShell\v1.0\powershell.exe
PID 2964 wrote to memory of 2996 N/A C:\Users\Admin\AppData\Local\Temp\2024-06-01_53b2f792d05e22cea3283bbfaa6bb085_megazord.exe C:\Windows\system32\WindowsPowerShell\v1.0\powershell.exe
PID 2964 wrote to memory of 2516 N/A C:\Users\Admin\AppData\Local\Temp\2024-06-01_53b2f792d05e22cea3283bbfaa6bb085_megazord.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\jsc.exe
PID 2964 wrote to memory of 2516 N/A C:\Users\Admin\AppData\Local\Temp\2024-06-01_53b2f792d05e22cea3283bbfaa6bb085_megazord.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\jsc.exe
PID 2964 wrote to memory of 2516 N/A C:\Users\Admin\AppData\Local\Temp\2024-06-01_53b2f792d05e22cea3283bbfaa6bb085_megazord.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\jsc.exe
PID 2964 wrote to memory of 2516 N/A C:\Users\Admin\AppData\Local\Temp\2024-06-01_53b2f792d05e22cea3283bbfaa6bb085_megazord.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\jsc.exe
PID 2964 wrote to memory of 2516 N/A C:\Users\Admin\AppData\Local\Temp\2024-06-01_53b2f792d05e22cea3283bbfaa6bb085_megazord.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\jsc.exe
PID 2964 wrote to memory of 2516 N/A C:\Users\Admin\AppData\Local\Temp\2024-06-01_53b2f792d05e22cea3283bbfaa6bb085_megazord.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\jsc.exe
PID 2964 wrote to memory of 2516 N/A C:\Users\Admin\AppData\Local\Temp\2024-06-01_53b2f792d05e22cea3283bbfaa6bb085_megazord.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\jsc.exe
PID 2964 wrote to memory of 2516 N/A C:\Users\Admin\AppData\Local\Temp\2024-06-01_53b2f792d05e22cea3283bbfaa6bb085_megazord.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\jsc.exe
PID 2964 wrote to memory of 2516 N/A C:\Users\Admin\AppData\Local\Temp\2024-06-01_53b2f792d05e22cea3283bbfaa6bb085_megazord.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\jsc.exe

System policy modification

evasion
Description Indicator Process Target
Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0" C:\Users\Admin\AppData\Local\Temp\2024-06-01_53b2f792d05e22cea3283bbfaa6bb085_megazord.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\2024-06-01_53b2f792d05e22cea3283bbfaa6bb085_megazord.exe

"C:\Users\Admin\AppData\Local\Temp\2024-06-01_53b2f792d05e22cea3283bbfaa6bb085_megazord.exe"

C:\Windows\system32\WindowsPowerShell\v1.0\powershell.exe

"C:\Windows\system32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath $env:UserProfile

C:\Windows\Microsoft.NET\Framework\v4.0.30319\jsc.exe

"C:\Windows\Microsoft.NET\Framework\v4.0.30319\jsc.exe"

Network

Country Destination Domain Proto
HK 103.197.26.21:65503 tcp
US 8.8.8.8:53 webwhatsapp.cc udp
HK 8.217.140.110:65503 webwhatsapp.cc tcp
US 8.8.8.8:53 lele98.kzxia.com udp
HK 103.197.26.21:65503 lele98.kzxia.com tcp
HK 103.197.26.21:65503 lele98.kzxia.com tcp
HK 103.197.26.21:65503 lele98.kzxia.com tcp
HK 103.197.26.21:65503 lele98.kzxia.com tcp
HK 103.197.26.21:65503 lele98.kzxia.com tcp

Files

memory/2996-4-0x000007FEF621E000-0x000007FEF621F000-memory.dmp

memory/2996-5-0x000000001B750000-0x000000001BA32000-memory.dmp

memory/2996-7-0x000007FEF5F60000-0x000007FEF68FD000-memory.dmp

memory/2996-6-0x00000000004F0000-0x00000000004F8000-memory.dmp

memory/2996-8-0x000007FEF5F60000-0x000007FEF68FD000-memory.dmp

memory/2996-9-0x000007FEF5F60000-0x000007FEF68FD000-memory.dmp

memory/2996-10-0x000007FEF5F60000-0x000007FEF68FD000-memory.dmp

memory/2996-11-0x000007FEF5F60000-0x000007FEF68FD000-memory.dmp

memory/2516-22-0x0000000000400000-0x0000000000416000-memory.dmp

memory/2516-20-0x0000000000400000-0x0000000000416000-memory.dmp

memory/2516-18-0x0000000000400000-0x0000000000416000-memory.dmp

memory/2516-17-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

memory/2516-16-0x0000000000400000-0x0000000000416000-memory.dmp

memory/2516-13-0x0000000000400000-0x0000000000416000-memory.dmp

memory/2516-15-0x0000000000400000-0x0000000000416000-memory.dmp

memory/2516-14-0x0000000000400000-0x0000000000416000-memory.dmp

memory/2996-24-0x000007FEF5F60000-0x000007FEF68FD000-memory.dmp

memory/2516-23-0x000000007488E000-0x000000007488F000-memory.dmp

memory/2516-25-0x000000007488E000-0x000000007488F000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-06-01 00:47

Reported

2024-06-01 00:49

Platform

win10v2004-20240426-en

Max time kernel

93s

Max time network

95s

Command Line

"C:\Users\Admin\AppData\Local\Temp\2024-06-01_53b2f792d05e22cea3283bbfaa6bb085_megazord.exe"

Signatures

AsyncRat

rat asyncrat

UAC bypass

evasion trojan
Description Indicator Process Target
Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0" C:\Users\Admin\AppData\Local\Temp\2024-06-01_53b2f792d05e22cea3283bbfaa6bb085_megazord.exe N/A

Detects executables attemping to enumerate video devices using WMI

Description Indicator Process Target
N/A N/A N/A N/A

Detects executables containing the string DcRatBy

Description Indicator Process Target
N/A N/A N/A N/A

Command and Scripting Interpreter: PowerShell

execution
Description Indicator Process Target
N/A N/A C:\Windows\system32\WindowsPowerShell\v1.0\powershell.exe N/A

Adds Run key to start application

persistence
Description Indicator Process Target
Set value (str) \REGISTRY\USER\S-1-5-21-3906287020-2915474608-1755617787-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\2024-06-01_53b2f792d05e22cea3283bbfaa6bb085_megazord = "\"C:\\Users\\Admin\\2024-06-01_53b2f792d05e22cea3283bbfaa6bb085_megazord.exe\"" C:\Users\Admin\AppData\Local\Temp\2024-06-01_53b2f792d05e22cea3283bbfaa6bb085_megazord.exe N/A

Checks whether UAC is enabled

evasion trojan
Description Indicator Process Target
Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0" C:\Users\Admin\AppData\Local\Temp\2024-06-01_53b2f792d05e22cea3283bbfaa6bb085_megazord.exe N/A

Suspicious use of SetThreadContext

Description Indicator Process Target
PID 2804 set thread context of 4716 N/A C:\Users\Admin\AppData\Local\Temp\2024-06-01_53b2f792d05e22cea3283bbfaa6bb085_megazord.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\jsc.exe

Suspicious behavior: EnumeratesProcesses

Description Indicator Process Target
N/A N/A C:\Windows\system32\WindowsPowerShell\v1.0\powershell.exe N/A
N/A N/A C:\Windows\system32\WindowsPowerShell\v1.0\powershell.exe N/A

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Local\Temp\2024-06-01_53b2f792d05e22cea3283bbfaa6bb085_megazord.exe N/A
Token: SeDebugPrivilege N/A C:\Windows\system32\WindowsPowerShell\v1.0\powershell.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 2804 wrote to memory of 3540 N/A C:\Users\Admin\AppData\Local\Temp\2024-06-01_53b2f792d05e22cea3283bbfaa6bb085_megazord.exe C:\Windows\system32\WindowsPowerShell\v1.0\powershell.exe
PID 2804 wrote to memory of 3540 N/A C:\Users\Admin\AppData\Local\Temp\2024-06-01_53b2f792d05e22cea3283bbfaa6bb085_megazord.exe C:\Windows\system32\WindowsPowerShell\v1.0\powershell.exe
PID 2804 wrote to memory of 4716 N/A C:\Users\Admin\AppData\Local\Temp\2024-06-01_53b2f792d05e22cea3283bbfaa6bb085_megazord.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\jsc.exe
PID 2804 wrote to memory of 4716 N/A C:\Users\Admin\AppData\Local\Temp\2024-06-01_53b2f792d05e22cea3283bbfaa6bb085_megazord.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\jsc.exe
PID 2804 wrote to memory of 4716 N/A C:\Users\Admin\AppData\Local\Temp\2024-06-01_53b2f792d05e22cea3283bbfaa6bb085_megazord.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\jsc.exe
PID 2804 wrote to memory of 4716 N/A C:\Users\Admin\AppData\Local\Temp\2024-06-01_53b2f792d05e22cea3283bbfaa6bb085_megazord.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\jsc.exe
PID 2804 wrote to memory of 4716 N/A C:\Users\Admin\AppData\Local\Temp\2024-06-01_53b2f792d05e22cea3283bbfaa6bb085_megazord.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\jsc.exe
PID 2804 wrote to memory of 4716 N/A C:\Users\Admin\AppData\Local\Temp\2024-06-01_53b2f792d05e22cea3283bbfaa6bb085_megazord.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\jsc.exe
PID 2804 wrote to memory of 4716 N/A C:\Users\Admin\AppData\Local\Temp\2024-06-01_53b2f792d05e22cea3283bbfaa6bb085_megazord.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\jsc.exe
PID 2804 wrote to memory of 4716 N/A C:\Users\Admin\AppData\Local\Temp\2024-06-01_53b2f792d05e22cea3283bbfaa6bb085_megazord.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\jsc.exe

System policy modification

evasion
Description Indicator Process Target
Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0" C:\Users\Admin\AppData\Local\Temp\2024-06-01_53b2f792d05e22cea3283bbfaa6bb085_megazord.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\2024-06-01_53b2f792d05e22cea3283bbfaa6bb085_megazord.exe

"C:\Users\Admin\AppData\Local\Temp\2024-06-01_53b2f792d05e22cea3283bbfaa6bb085_megazord.exe"

C:\Windows\system32\WindowsPowerShell\v1.0\powershell.exe

"C:\Windows\system32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath $env:UserProfile

C:\Windows\Microsoft.NET\Framework\v4.0.30319\jsc.exe

"C:\Windows\Microsoft.NET\Framework\v4.0.30319\jsc.exe"

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 432 -p 4716 -ip 4716

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 4716 -s 152

Network

Country Destination Domain Proto
US 8.8.8.8:53 8.8.8.8.in-addr.arpa udp
US 8.8.8.8:53 228.249.119.40.in-addr.arpa udp
US 8.8.8.8:53 240.221.184.93.in-addr.arpa udp
US 8.8.8.8:53 2.159.190.20.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 209.205.72.20.in-addr.arpa udp
US 8.8.8.8:53 97.17.167.52.in-addr.arpa udp
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 23.236.111.52.in-addr.arpa udp

Files

memory/3540-0-0x00007FFE7B953000-0x00007FFE7B955000-memory.dmp

memory/3540-10-0x0000025FEC330000-0x0000025FEC352000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_wmfdwzlq.v4f.ps1

MD5 d17fe0a3f47be24a6453e9ef58c94641
SHA1 6ab83620379fc69f80c0242105ddffd7d98d5d9d
SHA256 96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
SHA512 5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

memory/3540-11-0x00007FFE7B950000-0x00007FFE7C411000-memory.dmp

memory/3540-12-0x00007FFE7B950000-0x00007FFE7C411000-memory.dmp

memory/3540-17-0x00007FFE7B950000-0x00007FFE7C411000-memory.dmp

memory/4716-16-0x0000000000400000-0x0000000000416000-memory.dmp