Malware Analysis Report

2024-10-23 19:25

Sample ID 240524-s9y2ssba91
Target 37157625bef24977ce0cf11e74b3d5c8412a0638b541e51cc0944b5127b2469d
SHA256 37157625bef24977ce0cf11e74b3d5c8412a0638b541e51cc0944b5127b2469d
Tags
asyncrat oro-benditos 2 persistence rat
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

37157625bef24977ce0cf11e74b3d5c8412a0638b541e51cc0944b5127b2469d

Threat Level: Known bad

The file 37157625bef24977ce0cf11e74b3d5c8412a0638b541e51cc0944b5127b2469d was found to be: Known bad.

Malicious Activity Summary

asyncrat oro-benditos 2 persistence rat

AsyncRat

Adds Run key to start application

Suspicious use of SetThreadContext

Unsigned PE

Suspicious use of AdjustPrivilegeToken

Suspicious use of WriteProcessMemory

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-05-24 15:50

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-05-24 15:50

Reported

2024-05-24 15:52

Platform

win7-20240215-en

Max time kernel

119s

Max time network

145s

Command Line

"C:\Users\Admin\AppData\Local\Temp\37157625bef24977ce0cf11e74b3d5c8412a0638b541e51cc0944b5127b2469d.exe"

Signatures

AsyncRat

rat asyncrat

Adds Run key to start application

persistence
Description Indicator Process Target
Set value (str) \REGISTRY\USER\S-1-5-21-2248906074-2862704502-246302768-1000\Software\Microsoft\Windows\CurrentVersion\Run\SmokerLtd = "C:\\Users\\Admin\\Documents\\Umunu\\uOperna.exe" C:\Users\Admin\AppData\Local\Temp\37157625bef24977ce0cf11e74b3d5c8412a0638b541e51cc0944b5127b2469d.exe N/A

Suspicious use of SetThreadContext

Description Indicator Process Target
PID 2416 set thread context of 1160 N/A C:\Users\Admin\AppData\Local\Temp\37157625bef24977ce0cf11e74b3d5c8412a0638b541e51cc0944b5127b2469d.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\37157625bef24977ce0cf11e74b3d5c8412a0638b541e51cc0944b5127b2469d.exe

"C:\Users\Admin\AppData\Local\Temp\37157625bef24977ce0cf11e74b3d5c8412a0638b541e51cc0944b5127b2469d.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 krakenstudio061Q.casacam.net udp
CO 177.255.88.222:8002 krakenstudio061Q.casacam.net tcp

Files

memory/2416-0-0x0000000000400000-0x00000000005DB000-memory.dmp

memory/2416-2-0x0000000000400000-0x00000000005DB000-memory.dmp

memory/2416-1-0x000000000040C000-0x0000000000425000-memory.dmp

memory/1160-3-0x0000000000080000-0x0000000000092000-memory.dmp

memory/1160-4-0x00000000FFFDE000-0x00000000FFFDF000-memory.dmp

memory/1160-5-0x0000000000080000-0x0000000000092000-memory.dmp

memory/1160-7-0x0000000000080000-0x0000000000092000-memory.dmp

memory/1160-9-0x0000000000080000-0x0000000000092000-memory.dmp

memory/2416-10-0x0000000000400000-0x00000000005DB000-memory.dmp

memory/1160-11-0x000000007472E000-0x000000007472F000-memory.dmp

memory/1160-12-0x0000000074720000-0x0000000074E0E000-memory.dmp

memory/1160-30-0x000000007472E000-0x000000007472F000-memory.dmp

memory/1160-31-0x0000000074720000-0x0000000074E0E000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-05-24 15:50

Reported

2024-05-24 15:52

Platform

win10v2004-20240426-en

Max time kernel

132s

Max time network

147s

Command Line

"C:\Users\Admin\AppData\Local\Temp\37157625bef24977ce0cf11e74b3d5c8412a0638b541e51cc0944b5127b2469d.exe"

Signatures

AsyncRat

rat asyncrat

Adds Run key to start application

persistence
Description Indicator Process Target
Set value (str) \REGISTRY\USER\S-1-5-21-540404634-651139247-2967210625-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\SmokerLtd = "C:\\Users\\Admin\\Documents\\Umunu\\uOperna.exe" C:\Users\Admin\AppData\Local\Temp\37157625bef24977ce0cf11e74b3d5c8412a0638b541e51cc0944b5127b2469d.exe N/A

Suspicious use of SetThreadContext

Description Indicator Process Target
PID 3348 set thread context of 3168 N/A C:\Users\Admin\AppData\Local\Temp\37157625bef24977ce0cf11e74b3d5c8412a0638b541e51cc0944b5127b2469d.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\37157625bef24977ce0cf11e74b3d5c8412a0638b541e51cc0944b5127b2469d.exe

"C:\Users\Admin\AppData\Local\Temp\37157625bef24977ce0cf11e74b3d5c8412a0638b541e51cc0944b5127b2469d.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 8.8.8.8:53 196.249.167.52.in-addr.arpa udp
US 8.8.8.8:53 240.197.17.2.in-addr.arpa 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 71.159.190.20.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
NL 23.62.61.194:443 www.bing.com tcp
US 8.8.8.8:53 237.197.79.204.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 88.156.103.20.in-addr.arpa udp
US 8.8.8.8:53 97.17.167.52.in-addr.arpa udp
US 8.8.8.8:53 241.150.49.20.in-addr.arpa udp
US 8.8.8.8:53 krakenstudio061Q.casacam.net udp
CO 177.255.88.222:8002 krakenstudio061Q.casacam.net tcp
US 8.8.8.8:53 222.88.255.177.in-addr.arpa udp
US 8.8.8.8:53 172.210.232.199.in-addr.arpa udp
US 8.8.8.8:53 157.123.68.40.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 26.35.223.20.in-addr.arpa udp
US 52.111.227.11:443 tcp
US 8.8.8.8:53 23.236.111.52.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 8.8.8.8:53 45.19.74.20.in-addr.arpa udp

Files

memory/3348-0-0x0000000000400000-0x00000000005DB000-memory.dmp

memory/3348-2-0x0000000000400000-0x00000000005DB000-memory.dmp

memory/3348-1-0x000000000040C000-0x0000000000425000-memory.dmp

memory/3168-3-0x0000000000A10000-0x0000000000A22000-memory.dmp

memory/3348-4-0x0000000000400000-0x00000000005DB000-memory.dmp

memory/3168-5-0x0000000073D5E000-0x0000000073D5F000-memory.dmp

memory/3168-6-0x0000000073D50000-0x0000000074500000-memory.dmp

memory/3168-9-0x0000000005C30000-0x0000000005CCC000-memory.dmp

memory/3168-10-0x0000000006280000-0x0000000006824000-memory.dmp

memory/3168-11-0x0000000005CD0000-0x0000000005D36000-memory.dmp

memory/3168-12-0x0000000073D50000-0x0000000074500000-memory.dmp

memory/3168-13-0x0000000073D5E000-0x0000000073D5F000-memory.dmp

memory/3168-14-0x0000000073D50000-0x0000000074500000-memory.dmp

memory/3168-15-0x0000000073D50000-0x0000000074500000-memory.dmp