Malware Analysis Report

2024-08-06 12:59

Sample ID 240605-ch4vzabb5x
Target b7538681f8c639598071487d4212f9d43069ca37bb913bc5ff3312034aa27e9a.exe
SHA256 b7538681f8c639598071487d4212f9d43069ca37bb913bc5ff3312034aa27e9a
Tags
rat asyncrat
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

b7538681f8c639598071487d4212f9d43069ca37bb913bc5ff3312034aa27e9a

Threat Level: Known bad

The file b7538681f8c639598071487d4212f9d43069ca37bb913bc5ff3312034aa27e9a.exe was found to be: Known bad.

Malicious Activity Summary

rat asyncrat

Asyncrat family

Detects executables attemping to enumerate video devices using WMI

Detects executables containing the string DcRatBy

AsyncRat

Async RAT payload

Detects executables containing the string DcRatBy

Detects executables attemping to enumerate video devices using WMI

Unsigned PE

Suspicious use of AdjustPrivilegeToken

MITRE ATT&CK Matrix

N/A

Analysis: static1

Detonation Overview

Reported

2024-06-05 02:05

Signatures

Async RAT payload

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

Asyncrat family

asyncrat

Detects executables attemping to enumerate video devices using WMI

Description Indicator Process Target
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

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-06-05 02:05

Reported

2024-06-05 02:08

Platform

win7-20240508-en

Max time kernel

134s

Max time network

144s

Command Line

"C:\Users\Admin\AppData\Local\Temp\b7538681f8c639598071487d4212f9d43069ca37bb913bc5ff3312034aa27e9a.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

Detects executables containing the string DcRatBy

Description Indicator Process Target
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\b7538681f8c639598071487d4212f9d43069ca37bb913bc5ff3312034aa27e9a.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\b7538681f8c639598071487d4212f9d43069ca37bb913bc5ff3312034aa27e9a.exe

"C:\Users\Admin\AppData\Local\Temp\b7538681f8c639598071487d4212f9d43069ca37bb913bc5ff3312034aa27e9a.exe"

Network

Country Destination Domain Proto
N/A 10.24.246.153:4449 tcp
N/A 10.24.246.153:4449 tcp
N/A 10.24.246.153:4449 tcp
N/A 10.24.246.153:4449 tcp
N/A 10.24.246.153:4449 tcp
N/A 10.24.246.153:4449 tcp

Files

memory/2176-0-0x000007FEF58F3000-0x000007FEF58F4000-memory.dmp

memory/2176-1-0x0000000000B30000-0x0000000000B46000-memory.dmp

memory/2176-2-0x000007FEF58F0000-0x000007FEF62DC000-memory.dmp

memory/2176-3-0x000007FEF58F0000-0x000007FEF62DC000-memory.dmp

memory/2176-4-0x000007FEF58F3000-0x000007FEF58F4000-memory.dmp

memory/2176-5-0x000007FEF58F0000-0x000007FEF62DC000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-06-05 02:05

Reported

2024-06-05 02:08

Platform

win10v2004-20240508-en

Max time kernel

134s

Max time network

150s

Command Line

"C:\Users\Admin\AppData\Local\Temp\b7538681f8c639598071487d4212f9d43069ca37bb913bc5ff3312034aa27e9a.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

Detects executables containing the string DcRatBy

Description Indicator Process Target
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\b7538681f8c639598071487d4212f9d43069ca37bb913bc5ff3312034aa27e9a.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\b7538681f8c639598071487d4212f9d43069ca37bb913bc5ff3312034aa27e9a.exe

"C:\Users\Admin\AppData\Local\Temp\b7538681f8c639598071487d4212f9d43069ca37bb913bc5ff3312034aa27e9a.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 204.79.197.237:443 g.bing.com tcp
US 8.8.8.8:53 28.118.140.52.in-addr.arpa udp
US 8.8.8.8:53 203.107.17.2.in-addr.arpa udp
US 8.8.8.8:53 237.197.79.204.in-addr.arpa udp
NL 23.62.61.97:443 www.bing.com tcp
US 8.8.8.8:53 55.36.223.20.in-addr.arpa udp
US 8.8.8.8:53 97.61.62.23.in-addr.arpa udp
N/A 10.24.246.153:4449 tcp
US 8.8.8.8:53 149.220.183.52.in-addr.arpa udp
N/A 10.24.246.153:4449 tcp
US 8.8.8.8:53 86.23.85.13.in-addr.arpa udp
US 8.8.8.8:53 18.31.95.13.in-addr.arpa udp
US 8.8.8.8:53 31.121.18.2.in-addr.arpa udp
N/A 10.24.246.153:4449 tcp
US 8.8.8.8:53 240.221.184.93.in-addr.arpa udp
N/A 10.24.246.153:4449 tcp
US 8.8.8.8:53 tse1.mm.bing.net udp
US 8.8.8.8:53 88.156.103.20.in-addr.arpa udp
US 204.79.197.200:443 tse1.mm.bing.net tcp
US 204.79.197.200:443 tse1.mm.bing.net tcp
US 204.79.197.200:443 tse1.mm.bing.net tcp
US 204.79.197.200:443 tse1.mm.bing.net tcp
US 204.79.197.200:443 tse1.mm.bing.net tcp
N/A 10.24.246.153:4449 tcp
N/A 10.24.246.153:4449 tcp

Files

memory/3764-0-0x0000000000300000-0x0000000000316000-memory.dmp

memory/3764-1-0x00007FF9F65B3000-0x00007FF9F65B5000-memory.dmp

memory/3764-2-0x00007FF9F65B0000-0x00007FF9F7071000-memory.dmp

memory/3764-3-0x00007FF9F65B0000-0x00007FF9F7071000-memory.dmp