Malware Analysis Report

2024-12-07 03:27

Sample ID 241113-c6ekzsykbq
Target 94f1e96cc1e807c9a9e85d38b18fc77f3ff899fffd330ca277a864f8411ca4bb.exe
SHA256 94f1e96cc1e807c9a9e85d38b18fc77f3ff899fffd330ca277a864f8411ca4bb
Tags
asyncrat fendi 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

94f1e96cc1e807c9a9e85d38b18fc77f3ff899fffd330ca277a864f8411ca4bb

Threat Level: Known bad

The file 94f1e96cc1e807c9a9e85d38b18fc77f3ff899fffd330ca277a864f8411ca4bb.exe was found to be: Known bad.

Malicious Activity Summary

asyncrat fendi 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 02:41

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-11-13 02:41

Reported

2024-11-13 02:43

Platform

win7-20240729-en

Max time kernel

150s

Max time network

133s

Command Line

"C:\Users\Admin\AppData\Local\Temp\94f1e96cc1e807c9a9e85d38b18fc77f3ff899fffd330ca277a864f8411ca4bb.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-1-5-21-2703099537-420551529-3771253338-1000\Software\Microsoft\Windows\CurrentVersion\Run\AnyDesignerEditor = "C:\\Users\\Admin\\Music\\AnyDesignerUpdater\\AnyConvertVideo.exe" C:\Users\Admin\AppData\Local\Temp\94f1e96cc1e807c9a9e85d38b18fc77f3ff899fffd330ca277a864f8411ca4bb.exe N/A

Suspicious use of SetThreadContext

Description Indicator Process Target
PID 2652 set thread context of 2800 N/A C:\Users\Admin\AppData\Local\Temp\94f1e96cc1e807c9a9e85d38b18fc77f3ff899fffd330ca277a864f8411ca4bb.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\94f1e96cc1e807c9a9e85d38b18fc77f3ff899fffd330ca277a864f8411ca4bb.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\94f1e96cc1e807c9a9e85d38b18fc77f3ff899fffd330ca277a864f8411ca4bb.exe

"C:\Users\Admin\AppData\Local\Temp\94f1e96cc1e807c9a9e85d38b18fc77f3ff899fffd330ca277a864f8411ca4bb.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 castanojulian1111.chickenkiller.com udp
CO 190.240.48.29:2727 castanojulian1111.chickenkiller.com tcp
US 8.8.8.8:53 fuertefuerte.accesscam.org udp
CO 190.240.48.29:2727 castanojulian1111.chickenkiller.com tcp
US 8.8.8.8:53 octubre212024.giize.com udp
CO 190.240.48.29:2727 castanojulian1111.chickenkiller.com tcp
CO 190.240.48.29:2727 castanojulian1111.chickenkiller.com tcp

Files

memory/2652-0-0x0000000000400000-0x00000000005C3000-memory.dmp

memory/2652-2-0x000000000040D000-0x0000000000425000-memory.dmp

memory/2652-1-0x0000000000400000-0x00000000005C3000-memory.dmp

memory/2652-3-0x0000000000400000-0x00000000005C3000-memory.dmp

memory/2652-6-0x0000000000400000-0x00000000005C3000-memory.dmp

memory/2652-7-0x0000000000400000-0x00000000005C3000-memory.dmp

memory/2652-5-0x0000000000400000-0x00000000005C3000-memory.dmp

memory/2800-10-0x0000000000080000-0x0000000000092000-memory.dmp

memory/2652-15-0x0000000000400000-0x00000000005C3000-memory.dmp

memory/2800-16-0x0000000000080000-0x0000000000092000-memory.dmp

memory/2800-13-0x0000000000080000-0x0000000000092000-memory.dmp

memory/2652-11-0x0000000000400000-0x00000000005C3000-memory.dmp

memory/2800-9-0x00000000FFFDE000-0x00000000FFFDF000-memory.dmp

memory/2800-8-0x0000000000080000-0x0000000000092000-memory.dmp

memory/2800-17-0x00000000747FE000-0x00000000747FF000-memory.dmp

memory/2800-18-0x00000000747F0000-0x0000000074EDE000-memory.dmp

memory/2652-20-0x000000000040D000-0x0000000000425000-memory.dmp

memory/2800-21-0x00000000747F0000-0x0000000074EDE000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-11-13 02:41

Reported

2024-11-13 02:43

Platform

win10v2004-20241007-en

Max time kernel

147s

Max time network

152s

Command Line

"C:\Users\Admin\AppData\Local\Temp\94f1e96cc1e807c9a9e85d38b18fc77f3ff899fffd330ca277a864f8411ca4bb.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-1-5-21-3442511616-637977696-3186306149-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\AnyDesignerEditor = "C:\\Users\\Admin\\Music\\AnyDesignerUpdater\\AnyConvertVideo.exe" C:\Users\Admin\AppData\Local\Temp\94f1e96cc1e807c9a9e85d38b18fc77f3ff899fffd330ca277a864f8411ca4bb.exe N/A

Suspicious use of SetThreadContext

Description Indicator Process Target
PID 2340 set thread context of 4496 N/A C:\Users\Admin\AppData\Local\Temp\94f1e96cc1e807c9a9e85d38b18fc77f3ff899fffd330ca277a864f8411ca4bb.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:\Windows\Microsoft.NET\Framework\v4.0.30319\csc.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Users\Admin\AppData\Local\Temp\94f1e96cc1e807c9a9e85d38b18fc77f3ff899fffd330ca277a864f8411ca4bb.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\94f1e96cc1e807c9a9e85d38b18fc77f3ff899fffd330ca277a864f8411ca4bb.exe

"C:\Users\Admin\AppData\Local\Temp\94f1e96cc1e807c9a9e85d38b18fc77f3ff899fffd330ca277a864f8411ca4bb.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 8.8.8.8.in-addr.arpa udp
US 8.8.8.8:53 217.106.137.52.in-addr.arpa udp
US 8.8.8.8:53 88.210.23.2.in-addr.arpa udp
US 8.8.8.8:53 133.32.126.40.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 fuertefuerte.accesscam.org udp
US 8.8.8.8:53 castanojulian1111.chickenkiller.com udp
CO 190.240.48.29:2727 castanojulian1111.chickenkiller.com tcp
US 8.8.8.8:53 53.210.109.20.in-addr.arpa udp
US 8.8.8.8:53 198.187.3.20.in-addr.arpa udp
US 8.8.8.8:53 172.214.232.199.in-addr.arpa udp
CO 190.240.48.29:2727 castanojulian1111.chickenkiller.com tcp
CO 190.240.48.29:2727 castanojulian1111.chickenkiller.com tcp
US 8.8.8.8:53 22.236.111.52.in-addr.arpa udp
US 8.8.8.8:53 octubre212024.giize.com udp
CO 190.240.48.29:2727 castanojulian1111.chickenkiller.com tcp
CO 190.240.48.29:2727 castanojulian1111.chickenkiller.com tcp

Files

memory/2340-0-0x0000000000400000-0x00000000005C3000-memory.dmp

memory/2340-2-0x000000000040D000-0x0000000000425000-memory.dmp

memory/2340-1-0x0000000000400000-0x00000000005C3000-memory.dmp

memory/2340-6-0x0000000000400000-0x00000000005C3000-memory.dmp

memory/2340-7-0x0000000000400000-0x00000000005C3000-memory.dmp

memory/2340-9-0x0000000000400000-0x00000000005C3000-memory.dmp

memory/4496-8-0x0000000000750000-0x0000000000762000-memory.dmp

memory/2340-5-0x0000000000400000-0x00000000005C3000-memory.dmp

memory/2340-4-0x0000000000400000-0x00000000005C3000-memory.dmp

memory/2340-12-0x0000000000400000-0x00000000005C3000-memory.dmp

memory/4496-13-0x000000007416E000-0x000000007416F000-memory.dmp

memory/4496-14-0x0000000074160000-0x0000000074910000-memory.dmp

memory/2340-16-0x000000000040D000-0x0000000000425000-memory.dmp

memory/4496-17-0x000000007416E000-0x000000007416F000-memory.dmp

memory/4496-18-0x0000000074160000-0x0000000074910000-memory.dmp