Malware Analysis Report

2024-09-22 07:19

Sample ID 240531-bllywsae54
Target 2024-05-31_6b3eb8da9f60c431005ead6a739e6f4a_megazord
SHA256 c27ce7e1c51bc329a5b628607decd994606bd816eb3c43987c8be68a52fff5d8
Tags
asyncrat default rat
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

c27ce7e1c51bc329a5b628607decd994606bd816eb3c43987c8be68a52fff5d8

Threat Level: Known bad

The file 2024-05-31_6b3eb8da9f60c431005ead6a739e6f4a_megazord was found to be: Known bad.

Malicious Activity Summary

asyncrat default rat

Detects Windows exceutables bypassing UAC using CMSTP utility, command line and INF

Detects executables embedding command execution via IExecuteCommand COM object

AsyncRat

Detects executables attemping to enumerate video devices using WMI

Detects executables containing the string DcRatBy

Suspicious use of SetThreadContext

Unsigned PE

Suspicious use of AdjustPrivilegeToken

Suspicious use of WriteProcessMemory

MITRE ATT&CK Matrix

N/A

Analysis: static1

Detonation Overview

Reported

2024-05-31 01:14

Signatures

Detects Windows exceutables bypassing UAC using CMSTP utility, command line and INF

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

Detects executables embedding command execution via IExecuteCommand COM object

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

2024-05-31 01:13

Reported

2024-05-31 01:16

Platform

win7-20240508-en

Max time kernel

121s

Max time network

148s

Command Line

"C:\Users\Admin\AppData\Local\Temp\2024-05-31_6b3eb8da9f60c431005ead6a739e6f4a_megazord.exe"

Signatures

AsyncRat

rat asyncrat

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

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Windows\Microsoft.NET\Framework\v4.0.30319\jsc.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 1276 wrote to memory of 1144 N/A C:\Users\Admin\AppData\Local\Temp\2024-05-31_6b3eb8da9f60c431005ead6a739e6f4a_megazord.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\jsc.exe
PID 1276 wrote to memory of 1144 N/A C:\Users\Admin\AppData\Local\Temp\2024-05-31_6b3eb8da9f60c431005ead6a739e6f4a_megazord.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\jsc.exe
PID 1276 wrote to memory of 1144 N/A C:\Users\Admin\AppData\Local\Temp\2024-05-31_6b3eb8da9f60c431005ead6a739e6f4a_megazord.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\jsc.exe
PID 1276 wrote to memory of 1144 N/A C:\Users\Admin\AppData\Local\Temp\2024-05-31_6b3eb8da9f60c431005ead6a739e6f4a_megazord.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\jsc.exe
PID 1276 wrote to memory of 1144 N/A C:\Users\Admin\AppData\Local\Temp\2024-05-31_6b3eb8da9f60c431005ead6a739e6f4a_megazord.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\jsc.exe
PID 1276 wrote to memory of 1144 N/A C:\Users\Admin\AppData\Local\Temp\2024-05-31_6b3eb8da9f60c431005ead6a739e6f4a_megazord.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\jsc.exe
PID 1276 wrote to memory of 1144 N/A C:\Users\Admin\AppData\Local\Temp\2024-05-31_6b3eb8da9f60c431005ead6a739e6f4a_megazord.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\jsc.exe
PID 1276 wrote to memory of 1144 N/A C:\Users\Admin\AppData\Local\Temp\2024-05-31_6b3eb8da9f60c431005ead6a739e6f4a_megazord.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\jsc.exe
PID 1276 wrote to memory of 1144 N/A C:\Users\Admin\AppData\Local\Temp\2024-05-31_6b3eb8da9f60c431005ead6a739e6f4a_megazord.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\jsc.exe
PID 1276 wrote to memory of 2700 N/A C:\Users\Admin\AppData\Local\Temp\2024-05-31_6b3eb8da9f60c431005ead6a739e6f4a_megazord.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\jsc.exe
PID 1276 wrote to memory of 2700 N/A C:\Users\Admin\AppData\Local\Temp\2024-05-31_6b3eb8da9f60c431005ead6a739e6f4a_megazord.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\jsc.exe
PID 1276 wrote to memory of 2700 N/A C:\Users\Admin\AppData\Local\Temp\2024-05-31_6b3eb8da9f60c431005ead6a739e6f4a_megazord.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\jsc.exe
PID 1276 wrote to memory of 2700 N/A C:\Users\Admin\AppData\Local\Temp\2024-05-31_6b3eb8da9f60c431005ead6a739e6f4a_megazord.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\jsc.exe
PID 1276 wrote to memory of 2700 N/A C:\Users\Admin\AppData\Local\Temp\2024-05-31_6b3eb8da9f60c431005ead6a739e6f4a_megazord.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\jsc.exe
PID 1276 wrote to memory of 2700 N/A C:\Users\Admin\AppData\Local\Temp\2024-05-31_6b3eb8da9f60c431005ead6a739e6f4a_megazord.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\jsc.exe
PID 1276 wrote to memory of 2700 N/A C:\Users\Admin\AppData\Local\Temp\2024-05-31_6b3eb8da9f60c431005ead6a739e6f4a_megazord.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\jsc.exe
PID 1276 wrote to memory of 2700 N/A C:\Users\Admin\AppData\Local\Temp\2024-05-31_6b3eb8da9f60c431005ead6a739e6f4a_megazord.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\jsc.exe
PID 1276 wrote to memory of 2700 N/A C:\Users\Admin\AppData\Local\Temp\2024-05-31_6b3eb8da9f60c431005ead6a739e6f4a_megazord.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\jsc.exe

Processes

C:\Users\Admin\AppData\Local\Temp\2024-05-31_6b3eb8da9f60c431005ead6a739e6f4a_megazord.exe

"C:\Users\Admin\AppData\Local\Temp\2024-05-31_6b3eb8da9f60c431005ead6a739e6f4a_megazord.exe"

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

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

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
KR 103.254.73.247:65503 tcp
US 8.8.8.8:53 webwhatsapp.cc udp
HK 8.217.140.110:65503 webwhatsapp.cc tcp

Files

memory/1144-9-0x0000000000400000-0x0000000000416000-memory.dmp

memory/1144-8-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

memory/1144-6-0x0000000000400000-0x0000000000416000-memory.dmp

memory/1144-4-0x0000000000400000-0x0000000000416000-memory.dmp

memory/1144-2-0x0000000000400000-0x0000000000416000-memory.dmp

memory/1144-21-0x0000000000400000-0x0000000000416000-memory.dmp

memory/1144-19-0x0000000000400000-0x0000000000416000-memory.dmp

memory/1144-0-0x0000000000400000-0x0000000000416000-memory.dmp

memory/1144-28-0x0000000073D9E000-0x0000000073D9F000-memory.dmp

memory/2700-29-0x0000000073D90000-0x000000007447E000-memory.dmp

memory/1144-30-0x0000000073D90000-0x000000007447E000-memory.dmp

memory/2700-31-0x0000000073D90000-0x000000007447E000-memory.dmp

memory/2700-32-0x0000000073D90000-0x000000007447E000-memory.dmp

memory/1144-33-0x0000000073D90000-0x000000007447E000-memory.dmp

C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\94308059B57B3142E455B38A6EB92015

MD5 49aebf8cbd62d92ac215b2923fb1b9f5
SHA1 1723be06719828dda65ad804298d0431f6aff976
SHA256 b33efcb95235b98b48508e019afa4b7655e80cf071defabd8b2123fc8b29307f
SHA512 bf86116b015fb56709516d686e168e7c9c68365136231cc51d0b6542ae95323a71d2c7acec84aad7dcecc2e410843f6d82a0a6d51b9acfc721a9c84fdd877b5b

C:\Users\Admin\AppData\Local\Temp\Tar23DD.tmp

MD5 4ea6026cf93ec6338144661bf1202cd1
SHA1 a1dec9044f750ad887935a01430bf49322fbdcb7
SHA256 8efbc21559ef8b1bcf526800d8070baad42474ce7198e26fa771dbb41a76b1d8
SHA512 6c7e0980e39aacf4c3689802353f464a08cd17753bd210ee997e5f2a455deb4f287a9ef74d84579dbde49bc96213cd2b8b247723919c412ea980aa6e6bfe218b

memory/1144-71-0x0000000073D9E000-0x0000000073D9F000-memory.dmp

memory/1144-72-0x0000000073D90000-0x000000007447E000-memory.dmp

memory/1144-73-0x0000000073D90000-0x000000007447E000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-05-31 01:13

Reported

2024-05-31 01:16

Platform

win10v2004-20240508-en

Max time kernel

131s

Max time network

149s

Command Line

"C:\Users\Admin\AppData\Local\Temp\2024-05-31_6b3eb8da9f60c431005ead6a739e6f4a_megazord.exe"

Signatures

Processes

C:\Users\Admin\AppData\Local\Temp\2024-05-31_6b3eb8da9f60c431005ead6a739e6f4a_megazord.exe

"C:\Users\Admin\AppData\Local\Temp\2024-05-31_6b3eb8da9f60c431005ead6a739e6f4a_megazord.exe"

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

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

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
US 8.8.8.8:53 172.210.232.199.in-addr.arpa udp
US 8.8.8.8:53 13.86.106.20.in-addr.arpa udp
US 8.8.8.8:53 136.32.126.40.in-addr.arpa udp
BE 88.221.83.187:443 www.bing.com tcp
US 8.8.8.8:53 26.35.223.20.in-addr.arpa udp
US 8.8.8.8:53 187.83.221.88.in-addr.arpa udp
US 8.8.8.8:53 183.59.114.20.in-addr.arpa udp
US 8.8.8.8:53 171.39.242.20.in-addr.arpa udp
US 8.8.8.8:53 14.227.111.52.in-addr.arpa udp
US 8.8.8.8:53 tse1.mm.bing.net udp
US 204.79.197.200:443 tse1.mm.bing.net tcp
US 204.79.197.200:443 tse1.mm.bing.net tcp
US 204.79.197.200:443 tse1.mm.bing.net tcp
US 204.79.197.200:443 tse1.mm.bing.net tcp
US 204.79.197.200:443 tse1.mm.bing.net tcp
US 8.8.8.8:53 200.197.79.204.in-addr.arpa udp

Files

N/A