Malware Analysis Report

2024-10-23 19:25

Sample ID 240524-ssfh5aad8v
Target dd256157a85a12405cbdf789af1b2442
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 dd256157a85a12405cbdf789af1b2442 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 15:23

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-05-24 15:23

Reported

2024-05-24 15:26

Platform

win7-20240221-en

Max time kernel

119s

Max time network

182s

Command Line

"C:\Users\Admin\AppData\Local\Temp\dd256157a85a12405cbdf789af1b2442.exe"

Signatures

AsyncRat

rat asyncrat

Adds Run key to start application

persistence
Description Indicator Process Target
Set value (str) \REGISTRY\USER\S-1-5-21-330940541-141609230-1670313778-1000\Software\Microsoft\Windows\CurrentVersion\Run\SmokerLtd = "C:\\Users\\Admin\\Documents\\Umunu\\uOperna.exe" C:\Users\Admin\AppData\Local\Temp\dd256157a85a12405cbdf789af1b2442.exe N/A

Suspicious use of SetThreadContext

Description Indicator Process Target
PID 1928 set thread context of 2660 N/A C:\Users\Admin\AppData\Local\Temp\dd256157a85a12405cbdf789af1b2442.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\dd256157a85a12405cbdf789af1b2442.exe

"C:\Users\Admin\AppData\Local\Temp\dd256157a85a12405cbdf789af1b2442.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/1928-1-0x000000000040C000-0x0000000000425000-memory.dmp

memory/1928-0-0x0000000000400000-0x00000000005DB000-memory.dmp

memory/1928-4-0x0000000000400000-0x00000000005DB000-memory.dmp

memory/1928-3-0x0000000000400000-0x00000000005DB000-memory.dmp

memory/1928-2-0x0000000000400000-0x00000000005DB000-memory.dmp

memory/2660-6-0x00000000FFFDE000-0x00000000FFFDF000-memory.dmp

memory/2660-7-0x0000000000080000-0x0000000000092000-memory.dmp

memory/2660-5-0x0000000000080000-0x0000000000092000-memory.dmp

memory/2660-9-0x0000000000080000-0x0000000000092000-memory.dmp

memory/2660-11-0x0000000000080000-0x0000000000092000-memory.dmp

memory/1928-12-0x0000000000400000-0x00000000005DB000-memory.dmp

memory/2660-13-0x0000000073E0E000-0x0000000073E0F000-memory.dmp

memory/2660-14-0x0000000073E00000-0x00000000744EE000-memory.dmp

memory/2660-32-0x0000000073E0E000-0x0000000073E0F000-memory.dmp

memory/2660-33-0x0000000073E00000-0x00000000744EE000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-05-24 15:23

Reported

2024-05-24 15:26

Platform

win10v2004-20240508-en

Max time kernel

133s

Max time network

180s

Command Line

"C:\Users\Admin\AppData\Local\Temp\dd256157a85a12405cbdf789af1b2442.exe"

Signatures

AsyncRat

rat asyncrat

Adds Run key to start application

persistence
Description Indicator Process Target
Set value (str) \REGISTRY\USER\S-1-5-21-2804150937-2146708401-419095071-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\SmokerLtd = "C:\\Users\\Admin\\Documents\\Umunu\\uOperna.exe준" C:\Users\Admin\AppData\Local\Temp\dd256157a85a12405cbdf789af1b2442.exe N/A

Suspicious use of SetThreadContext

Description Indicator Process Target
PID 3588 set thread context of 4456 N/A C:\Users\Admin\AppData\Local\Temp\dd256157a85a12405cbdf789af1b2442.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\dd256157a85a12405cbdf789af1b2442.exe

"C:\Users\Admin\AppData\Local\Temp\dd256157a85a12405cbdf789af1b2442.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
BE 2.17.196.122:443 www.bing.com tcp
US 8.8.8.8:53 133.211.185.52.in-addr.arpa udp
US 8.8.8.8:53 249.197.17.2.in-addr.arpa udp
US 8.8.8.8:53 237.197.79.204.in-addr.arpa udp
US 8.8.8.8:53 23.177.190.20.in-addr.arpa udp
US 8.8.8.8:53 122.196.17.2.in-addr.arpa udp
US 8.8.8.8:53 88.156.103.20.in-addr.arpa udp
US 8.8.8.8:53 183.142.211.20.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 26.165.165.52.in-addr.arpa udp
US 8.8.8.8:53 15.164.165.52.in-addr.arpa udp
US 8.8.8.8:53 146.211.222.173.in-addr.arpa udp
US 8.8.8.8:53 48.229.111.52.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

Files

memory/3588-0-0x0000000000400000-0x00000000005DB000-memory.dmp

memory/3588-1-0x000000000040C000-0x0000000000425000-memory.dmp

memory/3588-2-0x0000000000400000-0x00000000005DB000-memory.dmp

memory/4456-3-0x0000000000600000-0x0000000000612000-memory.dmp

memory/3588-4-0x0000000000400000-0x00000000005DB000-memory.dmp

memory/4456-5-0x00000000740AE000-0x00000000740AF000-memory.dmp

memory/4456-6-0x00000000740A0000-0x0000000074850000-memory.dmp

memory/4456-9-0x0000000005C00000-0x0000000005C9C000-memory.dmp

memory/4456-10-0x0000000006250000-0x00000000067F4000-memory.dmp

memory/4456-11-0x0000000005CA0000-0x0000000005D06000-memory.dmp

memory/4456-12-0x00000000740A0000-0x0000000074850000-memory.dmp

memory/4456-13-0x00000000740AE000-0x00000000740AF000-memory.dmp

memory/4456-14-0x00000000740A0000-0x0000000074850000-memory.dmp

memory/4456-15-0x00000000740A0000-0x0000000074850000-memory.dmp