Malware Analysis Report

2024-12-07 03:27

Sample ID 241113-cwgycstpgv
Target 5ab8a17246063f43e04f124c842427a9413d086796c1fd5e9d46917b308f5e74.exe
SHA256 5ab8a17246063f43e04f124c842427a9413d086796c1fd5e9d46917b308f5e74
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

5ab8a17246063f43e04f124c842427a9413d086796c1fd5e9d46917b308f5e74

Threat Level: Known bad

The file 5ab8a17246063f43e04f124c842427a9413d086796c1fd5e9d46917b308f5e74.exe 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

2024-11-13 02:25

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-11-13 02:25

Reported

2024-11-13 02:28

Platform

win7-20240903-en

Max time kernel

149s

Max time network

122s

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 1184 set thread context of 2012 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 octubre212024.giize.com udp
US 8.8.8.8:53 fuertefuerte.accesscam.org udp

Files

memory/1184-0-0x0000000000400000-0x00000000007A9000-memory.dmp

memory/1184-1-0x0000000000400000-0x00000000007A9000-memory.dmp

memory/1184-3-0x0000000000400000-0x00000000007A9000-memory.dmp

memory/1184-2-0x000000000052D000-0x0000000000545000-memory.dmp

memory/1184-6-0x0000000000400000-0x00000000007A9000-memory.dmp

memory/1184-7-0x0000000000400000-0x00000000007A9000-memory.dmp

memory/1184-5-0x0000000000400000-0x00000000007A9000-memory.dmp

memory/1184-17-0x0000000000400000-0x00000000007A9000-memory.dmp

memory/1184-11-0x0000000000400000-0x00000000007A9000-memory.dmp

memory/2012-18-0x0000000074BAE000-0x0000000074BAF000-memory.dmp

memory/2012-15-0x0000000000080000-0x0000000000092000-memory.dmp

memory/2012-10-0x0000000000080000-0x0000000000092000-memory.dmp

memory/2012-9-0x00000000FFFDE000-0x00000000FFFDF000-memory.dmp

memory/2012-13-0x0000000000080000-0x0000000000092000-memory.dmp

memory/2012-8-0x0000000000080000-0x0000000000092000-memory.dmp

memory/2012-19-0x0000000074BA0000-0x000000007528E000-memory.dmp

memory/2012-21-0x0000000074BA0000-0x000000007528E000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-11-13 02:25

Reported

2024-11-13 02:28

Platform

win10v2004-20241007-en

Max time kernel

146s

Max time network

150s

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-1-5-21-2437139445-1151884604-3026847218-1000\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 916 set thread context of 2540 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 64.159.190.20.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 58.55.71.13.in-addr.arpa 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 octubre212024.giize.com udp
US 8.8.8.8:53 212.20.149.52.in-addr.arpa udp
US 8.8.8.8:53 171.39.242.20.in-addr.arpa udp
US 8.8.8.8:53 75.117.19.2.in-addr.arpa 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 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 fuertefuerte.accesscam.org udp
US 8.8.8.8:53 74.209.201.84.in-addr.arpa 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
US 8.8.8.8:53 88.210.23.2.in-addr.arpa udp
US 8.8.8.8:53 11.227.111.52.in-addr.arpa 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 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 fuertefuerte.accesscam.org udp
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 octubre242024.casacam.net udp

Files

memory/916-0-0x0000000000400000-0x00000000007A9000-memory.dmp

memory/916-2-0x000000000052D000-0x0000000000545000-memory.dmp

memory/916-1-0x0000000000400000-0x00000000007A9000-memory.dmp

memory/916-5-0x0000000000400000-0x00000000007A9000-memory.dmp

memory/916-7-0x0000000000400000-0x00000000007A9000-memory.dmp

memory/916-6-0x0000000000400000-0x00000000007A9000-memory.dmp

memory/916-3-0x0000000000400000-0x00000000007A9000-memory.dmp

memory/2540-8-0x0000000000750000-0x0000000000762000-memory.dmp

memory/916-9-0x0000000000400000-0x00000000007A9000-memory.dmp

memory/916-10-0x0000000000400000-0x00000000007A9000-memory.dmp

memory/916-12-0x0000000000731000-0x000000000073C000-memory.dmp

memory/2540-11-0x000000007451E000-0x000000007451F000-memory.dmp

memory/2540-13-0x00000000052B0000-0x00000000052C0000-memory.dmp

memory/916-15-0x000000000052D000-0x0000000000545000-memory.dmp

memory/2540-16-0x00000000052B0000-0x00000000052C0000-memory.dmp