Malware Analysis Report

2024-10-23 19:25

Sample ID 240524-t944gscc9w
Target 05852b1048b0e2721a812e94440bcfb037ef877ccaa63a22ddfb56148f7e185c
SHA256 05852b1048b0e2721a812e94440bcfb037ef877ccaa63a22ddfb56148f7e185c
Tags
asyncrat 20 mayo rat
score
10/10

Table of Contents

Analysis Overview

MITRE ATT&CK

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

05852b1048b0e2721a812e94440bcfb037ef877ccaa63a22ddfb56148f7e185c

Threat Level: Known bad

The file 05852b1048b0e2721a812e94440bcfb037ef877ccaa63a22ddfb56148f7e185c was found to be: Known bad.

Malicious Activity Summary

asyncrat 20 mayo rat

AsyncRat

Suspicious use of SetThreadContext

Unsigned PE

Suspicious use of AdjustPrivilegeToken

Suspicious use of WriteProcessMemory

MITRE ATT&CK

N/A

Analysis: static1

Detonation Overview

Reported

2024-05-24 16:46

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-05-24 16:46

Reported

2024-05-24 16:49

Platform

win7-20240221-en

Max time kernel

120s

Max time network

147s

Command Line

"C:\Users\Admin\AppData\Local\Temp\05852b1048b0e2721a812e94440bcfb037ef877ccaa63a22ddfb56148f7e185c.exe"

Signatures

AsyncRat

rat asyncrat

Suspicious use of SetThreadContext

Description Indicator Process Target
PID 1688 set thread context of 2796 N/A C:\Users\Admin\AppData\Local\Temp\05852b1048b0e2721a812e94440bcfb037ef877ccaa63a22ddfb56148f7e185c.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\csc.exe

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Windows\Microsoft.NET\Framework\v4.0.30319\csc.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\05852b1048b0e2721a812e94440bcfb037ef877ccaa63a22ddfb56148f7e185c.exe

"C:\Users\Admin\AppData\Local\Temp\05852b1048b0e2721a812e94440bcfb037ef877ccaa63a22ddfb56148f7e185c.exe"

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

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

Network

Country Destination Domain Proto
US 8.8.8.8:53 esteesdiosmio.duckdns.org udp
CO 179.13.2.154:2270 esteesdiosmio.duckdns.org tcp

Files

memory/1688-1-0x0000000000407000-0x0000000000421000-memory.dmp

memory/1688-0-0x0000000000400000-0x000000000068F000-memory.dmp

memory/1688-2-0x0000000000400000-0x000000000068F000-memory.dmp

memory/1688-3-0x0000000000400000-0x000000000068F000-memory.dmp

memory/2796-4-0x0000000000080000-0x0000000000092000-memory.dmp

memory/1688-11-0x0000000000400000-0x000000000068F000-memory.dmp

memory/2796-12-0x0000000073D0E000-0x0000000073D0F000-memory.dmp

memory/2796-10-0x0000000000080000-0x0000000000092000-memory.dmp

memory/2796-8-0x0000000000080000-0x0000000000092000-memory.dmp

memory/2796-6-0x0000000000080000-0x0000000000092000-memory.dmp

memory/2796-5-0x00000000FFFDE000-0x00000000FFFDF000-memory.dmp

memory/2796-13-0x0000000073D00000-0x00000000743EE000-memory.dmp

memory/2796-31-0x0000000073D0E000-0x0000000073D0F000-memory.dmp

memory/2796-32-0x0000000073D00000-0x00000000743EE000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-05-24 16:46

Reported

2024-05-24 16:48

Platform

win10v2004-20240508-en

Max time kernel

141s

Max time network

153s

Command Line

"C:\Users\Admin\AppData\Local\Temp\05852b1048b0e2721a812e94440bcfb037ef877ccaa63a22ddfb56148f7e185c.exe"

Signatures

Processes

C:\Users\Admin\AppData\Local\Temp\05852b1048b0e2721a812e94440bcfb037ef877ccaa63a22ddfb56148f7e185c.exe

"C:\Users\Admin\AppData\Local\Temp\05852b1048b0e2721a812e94440bcfb037ef877ccaa63a22ddfb56148f7e185c.exe"

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

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

Network

Country Destination Domain Proto
US 8.8.8.8:53 g.bing.com udp
US 204.79.197.237:443 g.bing.com tcp
US 8.8.8.8:53 133.211.185.52.in-addr.arpa udp
US 8.8.8.8:53 107.211.222.173.in-addr.arpa udp
US 8.8.8.8:53 237.197.79.204.in-addr.arpa udp
NL 23.62.61.194:443 www.bing.com tcp
US 8.8.8.8:53 23.159.190.20.in-addr.arpa udp
US 8.8.8.8:53 194.61.62.23.in-addr.arpa udp
NL 23.62.61.194:443 www.bing.com tcp
US 8.8.8.8:53 58.99.105.20.in-addr.arpa udp
US 8.8.8.8:53 232.168.11.51.in-addr.arpa udp
US 8.8.8.8:53 esteesdiosmio.duckdns.org udp
CO 179.13.2.154:2270 esteesdiosmio.duckdns.org tcp
US 8.8.8.8:53 154.2.13.179.in-addr.arpa udp
US 8.8.8.8:53 26.165.165.52.in-addr.arpa udp
US 8.8.8.8:53 171.39.242.20.in-addr.arpa udp
US 8.8.8.8:53 249.197.17.2.in-addr.arpa udp
US 8.8.8.8:53 43.58.199.20.in-addr.arpa udp
US 8.8.8.8:53 249.138.73.23.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

Files

memory/2532-1-0x0000000000407000-0x0000000000421000-memory.dmp

memory/2532-0-0x0000000000400000-0x000000000068F000-memory.dmp

memory/2532-2-0x0000000000400000-0x000000000068F000-memory.dmp

memory/2532-3-0x0000000000400000-0x000000000068F000-memory.dmp

memory/3800-4-0x0000000000720000-0x0000000000732000-memory.dmp

memory/2532-7-0x0000000000400000-0x000000000068F000-memory.dmp

memory/3800-8-0x00000000746BE000-0x00000000746BF000-memory.dmp

memory/2532-6-0x000000000063F000-0x0000000000647000-memory.dmp

memory/2532-5-0x0000000000637000-0x000000000063F000-memory.dmp

memory/3800-9-0x00000000746B0000-0x0000000074E60000-memory.dmp

memory/3800-12-0x0000000005BD0000-0x0000000005C6C000-memory.dmp

memory/3800-13-0x0000000006220000-0x00000000067C4000-memory.dmp

memory/3800-14-0x0000000005C70000-0x0000000005CD6000-memory.dmp

memory/3800-15-0x00000000746B0000-0x0000000074E60000-memory.dmp

memory/3800-16-0x00000000746BE000-0x00000000746BF000-memory.dmp

memory/3800-17-0x00000000746B0000-0x0000000074E60000-memory.dmp

memory/3800-18-0x00000000746B0000-0x0000000074E60000-memory.dmp