Malware Analysis Report

2024-12-07 03:17

Sample ID 241114-b3lz8awmar
Target c011fd4c9d95dcf32b07d2a7b1087a9d.bin
SHA256 07f78c7e2d303f3c8331e17e94cd803ba5c4a717c7771f73cc08b113781beaae
Tags
asyncrat feliz 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

07f78c7e2d303f3c8331e17e94cd803ba5c4a717c7771f73cc08b113781beaae

Threat Level: Known bad

The file c011fd4c9d95dcf32b07d2a7b1087a9d.bin was found to be: Known bad.

Malicious Activity Summary

asyncrat feliz discovery persistence rat

AsyncRat

Asyncrat family

Adds Run key to start application

Suspicious use of SetThreadContext

Unsigned PE

System Location Discovery: System Language Discovery

Suspicious use of WriteProcessMemory

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-11-14 01:40

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-11-14 01:40

Reported

2024-11-14 01:42

Platform

win7-20241010-en

Max time kernel

149s

Max time network

126s

Command Line

"C:\Users\Admin\AppData\Local\Temp\a74cc5cddbc77c63f202cc198442b0982c30a2e192b65f61fa9162278cb429b8.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-1-5-21-3692679935-4019334568-335155002-1000\Software\Microsoft\Windows\CurrentVersion\Run\NostraDesignerEditor = "C:\\Users\\Admin\\Music\\NostraDesignerUpdater\\NostraConvertVideo.exe" C:\Users\Admin\AppData\Local\Temp\a74cc5cddbc77c63f202cc198442b0982c30a2e192b65f61fa9162278cb429b8.exe N/A

Suspicious use of SetThreadContext

Description Indicator Process Target
PID 1232 set thread context of 3024 N/A C:\Users\Admin\AppData\Local\Temp\a74cc5cddbc77c63f202cc198442b0982c30a2e192b65f61fa9162278cb429b8.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\a74cc5cddbc77c63f202cc198442b0982c30a2e192b65f61fa9162278cb429b8.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\a74cc5cddbc77c63f202cc198442b0982c30a2e192b65f61fa9162278cb429b8.exe

"C:\Users\Admin\AppData\Local\Temp\a74cc5cddbc77c63f202cc198442b0982c30a2e192b65f61fa9162278cb429b8.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 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/1232-0-0x0000000000400000-0x00000000007FE000-memory.dmp

memory/1232-3-0x0000000000513000-0x000000000052C000-memory.dmp

memory/1232-4-0x0000000000400000-0x00000000007FE000-memory.dmp

memory/1232-2-0x0000000000400000-0x00000000007FE000-memory.dmp

memory/1232-6-0x0000000000400000-0x00000000007FE000-memory.dmp

memory/1232-8-0x0000000000400000-0x00000000007FE000-memory.dmp

memory/1232-9-0x0000000000400000-0x00000000007FE000-memory.dmp

memory/3024-12-0x0000000000080000-0x0000000000092000-memory.dmp

memory/3024-11-0x00000000FFFDE000-0x00000000FFFDF000-memory.dmp

memory/3024-10-0x0000000000080000-0x0000000000092000-memory.dmp

memory/3024-18-0x0000000000080000-0x0000000000092000-memory.dmp

memory/1232-19-0x0000000000400000-0x00000000007FE000-memory.dmp

memory/3024-16-0x0000000000080000-0x0000000000092000-memory.dmp

memory/1232-13-0x0000000000400000-0x00000000007FE000-memory.dmp

memory/3024-20-0x0000000074B7E000-0x0000000074B7F000-memory.dmp

memory/3024-21-0x0000000074B70000-0x000000007525E000-memory.dmp

memory/1232-22-0x0000000000513000-0x000000000052C000-memory.dmp

memory/3024-25-0x0000000074B7E000-0x0000000074B7F000-memory.dmp

memory/3024-26-0x0000000074B70000-0x000000007525E000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-11-14 01:40

Reported

2024-11-14 01:42

Platform

win10v2004-20241007-en

Max time kernel

148s

Max time network

149s

Command Line

"C:\Users\Admin\AppData\Local\Temp\a74cc5cddbc77c63f202cc198442b0982c30a2e192b65f61fa9162278cb429b8.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-1-5-21-2878641211-696417878-3864914810-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\NostraDesignerEditor = "C:\\Users\\Admin\\Music\\NostraDesignerUpdater\\NostraConvertVideo.exe" C:\Users\Admin\AppData\Local\Temp\a74cc5cddbc77c63f202cc198442b0982c30a2e192b65f61fa9162278cb429b8.exe N/A

Suspicious use of SetThreadContext

Description Indicator Process Target
PID 4288 set thread context of 2204 N/A C:\Users\Admin\AppData\Local\Temp\a74cc5cddbc77c63f202cc198442b0982c30a2e192b65f61fa9162278cb429b8.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\a74cc5cddbc77c63f202cc198442b0982c30a2e192b65f61fa9162278cb429b8.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\a74cc5cddbc77c63f202cc198442b0982c30a2e192b65f61fa9162278cb429b8.exe

"C:\Users\Admin\AppData\Local\Temp\a74cc5cddbc77c63f202cc198442b0982c30a2e192b65f61fa9162278cb429b8.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 58.55.71.13.in-addr.arpa udp
US 8.8.8.8:53 73.31.126.40.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 228.249.119.40.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 octubre212024.giize.com udp
US 8.8.8.8:53 octubre212024.giize.com udp
US 8.8.8.8:53 octubre242024.casacam.net udp
US 8.8.8.8:53 15.164.165.52.in-addr.arpa udp
US 8.8.8.8:53 200.163.202.172.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 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 8.8.8.8:53 101.210.23.2.in-addr.arpa udp
US 8.8.8.8:53 octubre212024.giize.com 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 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 48.229.111.52.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 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 fuertefuerte.accesscam.org udp
US 8.8.8.8:53 octubre212024.giize.com udp
US 8.8.8.8:53 octubre212024.giize.com udp

Files

memory/4288-0-0x0000000000400000-0x00000000007FE000-memory.dmp

memory/4288-2-0x0000000000513000-0x000000000052C000-memory.dmp

memory/4288-1-0x0000000000400000-0x00000000007FE000-memory.dmp

memory/4288-6-0x0000000000400000-0x00000000007FE000-memory.dmp

memory/4288-9-0x0000000000400000-0x00000000007FE000-memory.dmp

memory/2204-8-0x0000000000FB0000-0x0000000000FC2000-memory.dmp

memory/4288-11-0x0000000000400000-0x00000000007FE000-memory.dmp

memory/4288-7-0x0000000000400000-0x00000000007FE000-memory.dmp

memory/4288-4-0x0000000000400000-0x00000000007FE000-memory.dmp

memory/4288-5-0x0000000000400000-0x00000000007FE000-memory.dmp

memory/2204-12-0x0000000073E8E000-0x0000000073E8F000-memory.dmp

memory/2204-13-0x0000000073E80000-0x0000000074630000-memory.dmp

memory/4288-15-0x0000000000513000-0x000000000052C000-memory.dmp

memory/2204-16-0x0000000073E80000-0x0000000074630000-memory.dmp