Malware Analysis Report

2024-09-22 06:40

Sample ID 240619-bhafpavfjr
Target 178312f109fe57b02dfb81ca88e3016204480e72a902e7867cb5e160082cf7a5.exe
SHA256 178312f109fe57b02dfb81ca88e3016204480e72a902e7867cb5e160082cf7a5
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

178312f109fe57b02dfb81ca88e3016204480e72a902e7867cb5e160082cf7a5

Threat Level: Known bad

The file 178312f109fe57b02dfb81ca88e3016204480e72a902e7867cb5e160082cf7a5.exe was found to be: Known bad.

Malicious Activity Summary

asyncrat default rat

AsyncRat

Detects executables attemping to enumerate video devices using WMI

Detects executables containing the string DcRatBy

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

2024-06-19 01:08

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-06-19 01:08

Reported

2024-06-19 01:10

Platform

win7-20240221-en

Max time kernel

122s

Max time network

123s

Command Line

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

Signatures

AsyncRat

rat asyncrat

Detects executables attemping to enumerate video devices using WMI

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

Detects executables containing the string DcRatBy

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

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 2328 wrote to memory of 3036 N/A C:\Users\Admin\AppData\Local\Temp\178312f109fe57b02dfb81ca88e3016204480e72a902e7867cb5e160082cf7a5.exe C:\Users\Admin\AppData\Local\Temp\178312f109fe57b02dfb81ca88e3016204480e72a902e7867cb5e160082cf7a5.exe
PID 2328 wrote to memory of 3036 N/A C:\Users\Admin\AppData\Local\Temp\178312f109fe57b02dfb81ca88e3016204480e72a902e7867cb5e160082cf7a5.exe C:\Users\Admin\AppData\Local\Temp\178312f109fe57b02dfb81ca88e3016204480e72a902e7867cb5e160082cf7a5.exe
PID 2328 wrote to memory of 3036 N/A C:\Users\Admin\AppData\Local\Temp\178312f109fe57b02dfb81ca88e3016204480e72a902e7867cb5e160082cf7a5.exe C:\Users\Admin\AppData\Local\Temp\178312f109fe57b02dfb81ca88e3016204480e72a902e7867cb5e160082cf7a5.exe
PID 2328 wrote to memory of 3036 N/A C:\Users\Admin\AppData\Local\Temp\178312f109fe57b02dfb81ca88e3016204480e72a902e7867cb5e160082cf7a5.exe C:\Users\Admin\AppData\Local\Temp\178312f109fe57b02dfb81ca88e3016204480e72a902e7867cb5e160082cf7a5.exe
PID 2328 wrote to memory of 3036 N/A C:\Users\Admin\AppData\Local\Temp\178312f109fe57b02dfb81ca88e3016204480e72a902e7867cb5e160082cf7a5.exe C:\Users\Admin\AppData\Local\Temp\178312f109fe57b02dfb81ca88e3016204480e72a902e7867cb5e160082cf7a5.exe
PID 2328 wrote to memory of 3036 N/A C:\Users\Admin\AppData\Local\Temp\178312f109fe57b02dfb81ca88e3016204480e72a902e7867cb5e160082cf7a5.exe C:\Users\Admin\AppData\Local\Temp\178312f109fe57b02dfb81ca88e3016204480e72a902e7867cb5e160082cf7a5.exe
PID 2328 wrote to memory of 3036 N/A C:\Users\Admin\AppData\Local\Temp\178312f109fe57b02dfb81ca88e3016204480e72a902e7867cb5e160082cf7a5.exe C:\Users\Admin\AppData\Local\Temp\178312f109fe57b02dfb81ca88e3016204480e72a902e7867cb5e160082cf7a5.exe
PID 2328 wrote to memory of 3036 N/A C:\Users\Admin\AppData\Local\Temp\178312f109fe57b02dfb81ca88e3016204480e72a902e7867cb5e160082cf7a5.exe C:\Users\Admin\AppData\Local\Temp\178312f109fe57b02dfb81ca88e3016204480e72a902e7867cb5e160082cf7a5.exe
PID 2328 wrote to memory of 3036 N/A C:\Users\Admin\AppData\Local\Temp\178312f109fe57b02dfb81ca88e3016204480e72a902e7867cb5e160082cf7a5.exe C:\Users\Admin\AppData\Local\Temp\178312f109fe57b02dfb81ca88e3016204480e72a902e7867cb5e160082cf7a5.exe
PID 3036 wrote to memory of 2856 N/A C:\Users\Admin\AppData\Local\Temp\178312f109fe57b02dfb81ca88e3016204480e72a902e7867cb5e160082cf7a5.exe C:\Windows\Microsoft.NET\Framework\v2.0.50727\dw20.exe
PID 3036 wrote to memory of 2856 N/A C:\Users\Admin\AppData\Local\Temp\178312f109fe57b02dfb81ca88e3016204480e72a902e7867cb5e160082cf7a5.exe C:\Windows\Microsoft.NET\Framework\v2.0.50727\dw20.exe
PID 3036 wrote to memory of 2856 N/A C:\Users\Admin\AppData\Local\Temp\178312f109fe57b02dfb81ca88e3016204480e72a902e7867cb5e160082cf7a5.exe C:\Windows\Microsoft.NET\Framework\v2.0.50727\dw20.exe
PID 3036 wrote to memory of 2856 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 364

Network

N/A

Files

memory/2328-0-0x0000000074611000-0x0000000074612000-memory.dmp

memory/2328-1-0x0000000074610000-0x0000000074BBB000-memory.dmp

memory/2328-2-0x0000000074610000-0x0000000074BBB000-memory.dmp

memory/3036-4-0x0000000000400000-0x0000000000416000-memory.dmp

memory/3036-10-0x0000000000400000-0x0000000000416000-memory.dmp

memory/3036-8-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

memory/3036-7-0x0000000000400000-0x0000000000416000-memory.dmp

memory/3036-5-0x0000000000400000-0x0000000000416000-memory.dmp

memory/3036-3-0x0000000000400000-0x0000000000416000-memory.dmp

memory/3036-14-0x0000000000400000-0x0000000000416000-memory.dmp

memory/3036-12-0x0000000000400000-0x0000000000416000-memory.dmp

memory/2328-16-0x0000000074610000-0x0000000074BBB000-memory.dmp

memory/3036-15-0x0000000074610000-0x0000000074BBB000-memory.dmp

memory/2856-17-0x0000000000570000-0x0000000000571000-memory.dmp

memory/3036-18-0x0000000074610000-0x0000000074BBB000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-06-19 01:08

Reported

2024-06-19 01:10

Platform

win10v2004-20240611-en

Max time kernel

140s

Max time network

103s

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 g.bing.com udp
US 13.107.21.237:443 g.bing.com tcp
BE 88.221.83.187:443 www.bing.com tcp
US 8.8.8.8:53 68.32.126.40.in-addr.arpa udp
US 8.8.8.8:53 203.107.17.2.in-addr.arpa udp
US 8.8.8.8:53 187.83.221.88.in-addr.arpa udp
US 8.8.8.8:53 26.165.165.52.in-addr.arpa udp
US 8.8.8.8:53 15.164.165.52.in-addr.arpa udp
US 8.8.8.8:53 99.58.20.217.in-addr.arpa udp
US 8.8.8.8:53 138.107.17.2.in-addr.arpa udp
US 8.8.8.8:53 172.214.232.199.in-addr.arpa udp
US 8.8.8.8:53 31.243.111.52.in-addr.arpa udp
US 8.8.8.8:53 tse1.mm.bing.net udp
US 150.171.27.10:443 tse1.mm.bing.net tcp
US 150.171.27.10:443 tse1.mm.bing.net tcp
US 150.171.27.10:443 tse1.mm.bing.net tcp
US 150.171.27.10:443 tse1.mm.bing.net tcp
US 8.8.8.8:53 26.35.223.20.in-addr.arpa udp
US 8.8.8.8:53 10.27.171.150.in-addr.arpa udp

Files

memory/208-0-0x0000000075532000-0x0000000075533000-memory.dmp

memory/208-1-0x0000000075530000-0x0000000075AE1000-memory.dmp

memory/208-2-0x0000000075530000-0x0000000075AE1000-memory.dmp

memory/208-4-0x0000000075530000-0x0000000075AE1000-memory.dmp