Malware Analysis Report

2024-09-22 06:32

Sample ID 240620-bg1w9azgkb
Target 1343a927e6778744d23342667ec88efd.bin
SHA256 b343dc5a1e15055f2dbcfc1d5dac6b0cec984c613d74dc1fb77e218eb174b901
Tags
asyncrat default rat
score
10/10

Table of Contents

Analysis Overview

MITRE ATT&CK Matrix

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

b343dc5a1e15055f2dbcfc1d5dac6b0cec984c613d74dc1fb77e218eb174b901

Threat Level: Known bad

The file 1343a927e6778744d23342667ec88efd.bin was found to be: Known bad.

Malicious Activity Summary

asyncrat default rat

AsyncRat

Suspicious use of SetThreadContext

Unsigned PE

Suspicious use of AdjustPrivilegeToken

Suspicious use of WriteProcessMemory

Suspicious behavior: EnumeratesProcesses

MITRE ATT&CK Matrix

N/A

Analysis: static1

Detonation Overview

Reported

2024-06-20 01:07

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-06-20 01:07

Reported

2024-06-20 01:10

Platform

win7-20240611-en

Max time kernel

119s

Max time network

126s

Command Line

"C:\Users\Admin\AppData\Local\Temp\178312f109fe57b02dfb81ca88e3016204480e72a902e7867cb5e160082cf7a5.exe"

Signatures

AsyncRat

rat asyncrat

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Local\Temp\178312f109fe57b02dfb81ca88e3016204480e72a902e7867cb5e160082cf7a5.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 2840 wrote to memory of 2452 N/A C:\Users\Admin\AppData\Local\Temp\178312f109fe57b02dfb81ca88e3016204480e72a902e7867cb5e160082cf7a5.exe C:\Users\Admin\AppData\Local\Temp\178312f109fe57b02dfb81ca88e3016204480e72a902e7867cb5e160082cf7a5.exe
PID 2840 wrote to memory of 2452 N/A C:\Users\Admin\AppData\Local\Temp\178312f109fe57b02dfb81ca88e3016204480e72a902e7867cb5e160082cf7a5.exe C:\Users\Admin\AppData\Local\Temp\178312f109fe57b02dfb81ca88e3016204480e72a902e7867cb5e160082cf7a5.exe
PID 2840 wrote to memory of 2452 N/A C:\Users\Admin\AppData\Local\Temp\178312f109fe57b02dfb81ca88e3016204480e72a902e7867cb5e160082cf7a5.exe C:\Users\Admin\AppData\Local\Temp\178312f109fe57b02dfb81ca88e3016204480e72a902e7867cb5e160082cf7a5.exe
PID 2840 wrote to memory of 2452 N/A C:\Users\Admin\AppData\Local\Temp\178312f109fe57b02dfb81ca88e3016204480e72a902e7867cb5e160082cf7a5.exe C:\Users\Admin\AppData\Local\Temp\178312f109fe57b02dfb81ca88e3016204480e72a902e7867cb5e160082cf7a5.exe
PID 2840 wrote to memory of 2452 N/A C:\Users\Admin\AppData\Local\Temp\178312f109fe57b02dfb81ca88e3016204480e72a902e7867cb5e160082cf7a5.exe C:\Users\Admin\AppData\Local\Temp\178312f109fe57b02dfb81ca88e3016204480e72a902e7867cb5e160082cf7a5.exe
PID 2840 wrote to memory of 2452 N/A C:\Users\Admin\AppData\Local\Temp\178312f109fe57b02dfb81ca88e3016204480e72a902e7867cb5e160082cf7a5.exe C:\Users\Admin\AppData\Local\Temp\178312f109fe57b02dfb81ca88e3016204480e72a902e7867cb5e160082cf7a5.exe
PID 2840 wrote to memory of 2452 N/A C:\Users\Admin\AppData\Local\Temp\178312f109fe57b02dfb81ca88e3016204480e72a902e7867cb5e160082cf7a5.exe C:\Users\Admin\AppData\Local\Temp\178312f109fe57b02dfb81ca88e3016204480e72a902e7867cb5e160082cf7a5.exe
PID 2840 wrote to memory of 2452 N/A C:\Users\Admin\AppData\Local\Temp\178312f109fe57b02dfb81ca88e3016204480e72a902e7867cb5e160082cf7a5.exe C:\Users\Admin\AppData\Local\Temp\178312f109fe57b02dfb81ca88e3016204480e72a902e7867cb5e160082cf7a5.exe
PID 2840 wrote to memory of 2452 N/A C:\Users\Admin\AppData\Local\Temp\178312f109fe57b02dfb81ca88e3016204480e72a902e7867cb5e160082cf7a5.exe C:\Users\Admin\AppData\Local\Temp\178312f109fe57b02dfb81ca88e3016204480e72a902e7867cb5e160082cf7a5.exe
PID 2452 wrote to memory of 2624 N/A C:\Users\Admin\AppData\Local\Temp\178312f109fe57b02dfb81ca88e3016204480e72a902e7867cb5e160082cf7a5.exe C:\Windows\Microsoft.NET\Framework\v2.0.50727\dw20.exe
PID 2452 wrote to memory of 2624 N/A C:\Users\Admin\AppData\Local\Temp\178312f109fe57b02dfb81ca88e3016204480e72a902e7867cb5e160082cf7a5.exe C:\Windows\Microsoft.NET\Framework\v2.0.50727\dw20.exe
PID 2452 wrote to memory of 2624 N/A C:\Users\Admin\AppData\Local\Temp\178312f109fe57b02dfb81ca88e3016204480e72a902e7867cb5e160082cf7a5.exe C:\Windows\Microsoft.NET\Framework\v2.0.50727\dw20.exe
PID 2452 wrote to memory of 2624 N/A C:\Users\Admin\AppData\Local\Temp\178312f109fe57b02dfb81ca88e3016204480e72a902e7867cb5e160082cf7a5.exe C:\Windows\Microsoft.NET\Framework\v2.0.50727\dw20.exe

Processes

C:\Users\Admin\AppData\Local\Temp\178312f109fe57b02dfb81ca88e3016204480e72a902e7867cb5e160082cf7a5.exe

"C:\Users\Admin\AppData\Local\Temp\178312f109fe57b02dfb81ca88e3016204480e72a902e7867cb5e160082cf7a5.exe"

C:\Users\Admin\AppData\Local\Temp\178312f109fe57b02dfb81ca88e3016204480e72a902e7867cb5e160082cf7a5.exe

"C:\Users\Admin\AppData\Local\Temp\178312f109fe57b02dfb81ca88e3016204480e72a902e7867cb5e160082cf7a5.exe"

C:\Windows\Microsoft.NET\Framework\v2.0.50727\dw20.exe

dw20.exe -x -s 372

Network

N/A

Files

memory/2840-0-0x0000000074381000-0x0000000074382000-memory.dmp

memory/2840-1-0x0000000074380000-0x000000007492B000-memory.dmp

memory/2840-2-0x0000000074380000-0x000000007492B000-memory.dmp

memory/2452-3-0x0000000000400000-0x0000000000416000-memory.dmp

memory/2452-11-0x0000000000400000-0x0000000000416000-memory.dmp

memory/2452-9-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

memory/2452-8-0x0000000000400000-0x0000000000416000-memory.dmp

memory/2452-7-0x0000000000400000-0x0000000000416000-memory.dmp

memory/2452-5-0x0000000000400000-0x0000000000416000-memory.dmp

memory/2452-15-0x0000000000400000-0x0000000000416000-memory.dmp

memory/2452-13-0x0000000000400000-0x0000000000416000-memory.dmp

memory/2452-16-0x0000000074380000-0x000000007492B000-memory.dmp

memory/2840-17-0x0000000074380000-0x000000007492B000-memory.dmp

memory/2452-18-0x0000000074380000-0x000000007492B000-memory.dmp

memory/2624-19-0x0000000002A00000-0x0000000002A01000-memory.dmp

memory/2452-20-0x0000000074380000-0x000000007492B000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-06-20 01:07

Reported

2024-06-20 01:10

Platform

win10v2004-20240611-en

Max time kernel

148s

Max time network

152s

Command Line

"C:\Users\Admin\AppData\Local\Temp\178312f109fe57b02dfb81ca88e3016204480e72a902e7867cb5e160082cf7a5.exe"

Signatures

Processes

C:\Users\Admin\AppData\Local\Temp\178312f109fe57b02dfb81ca88e3016204480e72a902e7867cb5e160082cf7a5.exe

"C:\Users\Admin\AppData\Local\Temp\178312f109fe57b02dfb81ca88e3016204480e72a902e7867cb5e160082cf7a5.exe"

C:\Users\Admin\AppData\Local\Temp\178312f109fe57b02dfb81ca88e3016204480e72a902e7867cb5e160082cf7a5.exe

"C:\Users\Admin\AppData\Local\Temp\178312f109fe57b02dfb81ca88e3016204480e72a902e7867cb5e160082cf7a5.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 g.bing.com udp
US 13.107.21.237:443 g.bing.com tcp
US 8.8.8.8:53 209.205.72.20.in-addr.arpa udp
US 8.8.8.8:53 240.221.184.93.in-addr.arpa udp
BE 2.17.107.105:443 www.bing.com tcp
US 8.8.8.8:53 0.159.190.20.in-addr.arpa udp
US 8.8.8.8:53 105.107.17.2.in-addr.arpa udp
US 8.8.8.8:53 196.249.167.52.in-addr.arpa udp
US 8.8.8.8:53 50.23.12.20.in-addr.arpa udp
US 8.8.8.8:53 198.187.3.20.in-addr.arpa udp
US 8.8.8.8:53 107.12.20.2.in-addr.arpa udp
US 8.8.8.8:53 26.35.223.20.in-addr.arpa udp
US 8.8.8.8:53 14.227.111.52.in-addr.arpa udp
US 8.8.8.8:53 210.80.50.20.in-addr.arpa udp

Files

memory/4464-0-0x0000000074E72000-0x0000000074E73000-memory.dmp

memory/4464-1-0x0000000074E70000-0x0000000075421000-memory.dmp

memory/4464-2-0x0000000074E70000-0x0000000075421000-memory.dmp

memory/4464-4-0x0000000074E70000-0x0000000075421000-memory.dmp