Malware Analysis Report

2024-12-07 03:16

Sample ID 241114-b6sl6ssgjc
Target c76159163023302b08641b8d271ab362.bin
SHA256 fbb009dab5e1c924e3ee45f2bece42e0fc7c059d9d5a83f526bb7f9a0ae5a8e6
Tags
asyncrat dinero discovery 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

fbb009dab5e1c924e3ee45f2bece42e0fc7c059d9d5a83f526bb7f9a0ae5a8e6

Threat Level: Known bad

The file c76159163023302b08641b8d271ab362.bin was found to be: Known bad.

Malicious Activity Summary

asyncrat dinero discovery persistence rat

AsyncRat

Asyncrat family

Adds Run key to start application

Suspicious use of SetThreadContext

System Location Discovery: System Language Discovery

Unsigned PE

Suspicious use of WriteProcessMemory

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-11-14 01:45

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-11-14 01:45

Reported

2024-11-14 01:48

Platform

win7-20240903-en

Max time kernel

149s

Max time network

123s

Command Line

"C:\Users\Admin\AppData\Local\Temp\5ab8a17246063f43e04f124c842427a9413d086796c1fd5e9d46917b308f5e74.exe"

Signatures

AsyncRat

rat asyncrat

Asyncrat family

asyncrat

Adds Run key to start application

persistence
Description Indicator Process Target
Set value (str) \REGISTRY\USER\S-1-5-21-3533259084-2542256011-65585152-1000\Software\Microsoft\Windows\CurrentVersion\Run\AnyDesignerEditor = "C:\\Users\\Admin\\Music\\AnyDesignerUpdater\\AnyConvertVideo.exe" C:\Users\Admin\AppData\Local\Temp\5ab8a17246063f43e04f124c842427a9413d086796c1fd5e9d46917b308f5e74.exe N/A

Suspicious use of SetThreadContext

Description Indicator Process Target
PID 2420 set thread context of 2280 N/A C:\Users\Admin\AppData\Local\Temp\5ab8a17246063f43e04f124c842427a9413d086796c1fd5e9d46917b308f5e74.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\csc.exe

System Location Discovery: System Language Discovery

discovery
Description Indicator Process Target
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Users\Admin\AppData\Local\Temp\5ab8a17246063f43e04f124c842427a9413d086796c1fd5e9d46917b308f5e74.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Windows\Microsoft.NET\Framework\v4.0.30319\csc.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\5ab8a17246063f43e04f124c842427a9413d086796c1fd5e9d46917b308f5e74.exe

"C:\Users\Admin\AppData\Local\Temp\5ab8a17246063f43e04f124c842427a9413d086796c1fd5e9d46917b308f5e74.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 octubre242024.casacam.net udp
US 8.8.8.8:53 fuertefuerte.accesscam.org udp
US 8.8.8.8:53 octubre212024.giize.com udp

Files

memory/2420-0-0x0000000000400000-0x00000000007A9000-memory.dmp

memory/2420-1-0x0000000000400000-0x00000000007A9000-memory.dmp

memory/2420-2-0x000000000052D000-0x0000000000545000-memory.dmp

memory/2420-3-0x0000000000400000-0x00000000007A9000-memory.dmp

memory/2420-6-0x0000000000400000-0x00000000007A9000-memory.dmp

memory/2420-7-0x0000000000400000-0x00000000007A9000-memory.dmp

memory/2420-5-0x0000000000400000-0x00000000007A9000-memory.dmp

memory/2280-10-0x0000000000080000-0x0000000000092000-memory.dmp

memory/2280-9-0x00000000FFFDE000-0x00000000FFFDF000-memory.dmp

memory/2280-8-0x0000000000080000-0x0000000000092000-memory.dmp

memory/2420-11-0x0000000000400000-0x00000000007A9000-memory.dmp

memory/2420-17-0x0000000000400000-0x00000000007A9000-memory.dmp

memory/2280-18-0x000000007496E000-0x000000007496F000-memory.dmp

memory/2280-16-0x0000000000080000-0x0000000000092000-memory.dmp

memory/2280-14-0x0000000000080000-0x0000000000092000-memory.dmp

memory/2280-19-0x0000000074960000-0x000000007504E000-memory.dmp

memory/2280-21-0x0000000074960000-0x000000007504E000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-11-14 01:45

Reported

2024-11-14 01:48

Platform

win10v2004-20241007-en

Max time kernel

148s

Max time network

155s

Command Line

"C:\Users\Admin\AppData\Local\Temp\5ab8a17246063f43e04f124c842427a9413d086796c1fd5e9d46917b308f5e74.exe"

Signatures

AsyncRat

rat asyncrat

Asyncrat family

asyncrat

Adds Run key to start application

persistence
Description Indicator Process Target
Set value (str) \REGISTRY\USER\S-1-5-21-4050598569-1597076380-177084960-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\AnyDesignerEditor = "C:\\Users\\Admin\\Music\\AnyDesignerUpdater\\AnyConvertVideo.exe" C:\Users\Admin\AppData\Local\Temp\5ab8a17246063f43e04f124c842427a9413d086796c1fd5e9d46917b308f5e74.exe N/A

Suspicious use of SetThreadContext

Description Indicator Process Target
PID 1468 set thread context of 1628 N/A C:\Users\Admin\AppData\Local\Temp\5ab8a17246063f43e04f124c842427a9413d086796c1fd5e9d46917b308f5e74.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\csc.exe

System Location Discovery: System Language Discovery

discovery
Description Indicator Process Target
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Users\Admin\AppData\Local\Temp\5ab8a17246063f43e04f124c842427a9413d086796c1fd5e9d46917b308f5e74.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Windows\Microsoft.NET\Framework\v4.0.30319\csc.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\5ab8a17246063f43e04f124c842427a9413d086796c1fd5e9d46917b308f5e74.exe

"C:\Users\Admin\AppData\Local\Temp\5ab8a17246063f43e04f124c842427a9413d086796c1fd5e9d46917b308f5e74.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 8.8.8.8:53 217.106.137.52.in-addr.arpa udp
US 8.8.8.8:53 101.210.23.2.in-addr.arpa udp
US 8.8.8.8:53 0.159.190.20.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 28.118.140.52.in-addr.arpa udp
US 8.8.8.8:53 octubre212024.giize.com udp
US 8.8.8.8:53 fuertefuerte.accesscam.org udp
US 8.8.8.8:53 octubre242024.casacam.net udp
US 8.8.8.8:53 53.210.109.20.in-addr.arpa udp
US 8.8.8.8:53 octubre212024.giize.com udp
US 8.8.8.8:53 241.42.69.40.in-addr.arpa udp
US 8.8.8.8:53 172.210.232.199.in-addr.arpa udp
US 8.8.8.8:53 fuertefuerte.accesscam.org udp
US 8.8.8.8:53 fuertefuerte.accesscam.org udp
US 8.8.8.8:53 fuertefuerte.accesscam.org udp
US 8.8.8.8:53 fuertefuerte.accesscam.org udp
US 8.8.8.8:53 octubre212024.giize.com udp
US 8.8.8.8:53 fuertefuerte.accesscam.org udp
US 8.8.8.8:53 octubre242024.casacam.net udp
US 8.8.8.8:53 octubre212024.giize.com udp
US 8.8.8.8:53 fuertefuerte.accesscam.org udp
US 8.8.8.8:53 octubre242024.casacam.net udp
US 8.8.8.8:53 octubre212024.giize.com udp
US 8.8.8.8:53 fuertefuerte.accesscam.org udp
US 8.8.8.8:53 octubre242024.casacam.net udp
US 8.8.8.8:53 octubre212024.giize.com udp
US 8.8.8.8:53 octubre212024.giize.com udp
US 8.8.8.8:53 fuertefuerte.accesscam.org udp
US 8.8.8.8:53 octubre242024.casacam.net udp
US 8.8.8.8:53 octubre242024.casacam.net udp
US 8.8.8.8:53 octubre212024.giize.com udp
US 8.8.8.8:53 fuertefuerte.accesscam.org udp
US 8.8.8.8:53 octubre212024.giize.com udp
US 8.8.8.8:53 fuertefuerte.accesscam.org udp
US 8.8.8.8:53 octubre242024.casacam.net udp

Files

memory/1468-0-0x0000000000400000-0x00000000007A9000-memory.dmp

memory/1468-2-0x000000000052D000-0x0000000000545000-memory.dmp

memory/1468-1-0x0000000000400000-0x00000000007A9000-memory.dmp

memory/1468-6-0x0000000000400000-0x00000000007A9000-memory.dmp

memory/1468-7-0x0000000000400000-0x00000000007A9000-memory.dmp

memory/1628-8-0x0000000000FE0000-0x0000000000FF2000-memory.dmp

memory/1468-10-0x0000000000400000-0x00000000007A9000-memory.dmp

memory/1468-11-0x0000000000400000-0x00000000007A9000-memory.dmp

memory/1468-5-0x0000000000400000-0x00000000007A9000-memory.dmp

memory/1468-4-0x0000000000400000-0x00000000007A9000-memory.dmp

memory/1628-12-0x000000007474E000-0x000000007474F000-memory.dmp

memory/1628-13-0x0000000074740000-0x0000000074EF0000-memory.dmp

memory/1468-15-0x000000000052D000-0x0000000000545000-memory.dmp

memory/1628-16-0x0000000074740000-0x0000000074EF0000-memory.dmp