Malware Analysis Report

2024-10-10 10:08

Sample ID 240419-zqe8xafc94
Target C11Bootstrapper.zip
SHA256 fc1ad8d1483f0b1c94b55be7b7587b86485022ca4e62e6fb0c06e392dfaeecd2
Tags
rat default asyncrat umbral
score
10/10

Table of Contents

Analysis Overview

MITRE ATT&CK

Analysis: static1

Detonation Overview

Signatures

Analysis: behavioral1

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis Overview

score
10/10

SHA256

fc1ad8d1483f0b1c94b55be7b7587b86485022ca4e62e6fb0c06e392dfaeecd2

Threat Level: Known bad

The file C11Bootstrapper.zip was found to be: Known bad.

Malicious Activity Summary

rat default asyncrat umbral

Detect Umbral payload

Umbral family

Async RAT payload

Asyncrat family

Unsigned PE

MITRE ATT&CK

N/A

Analysis: static1

Detonation Overview

Reported

2024-04-19 20:55

Signatures

Async RAT payload

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

Asyncrat family

asyncrat

Detect Umbral payload

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

Umbral family

umbral

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-04-19 20:55

Reported

2024-04-19 21:28

Platform

win11-20240412-en

Max time kernel

1488s

Max time network

1503s

Command Line

C:\Windows\system32\cmd.exe /c "C:\Users\Admin\AppData\Local\Temp\C11Bootstrapper\Start.bat"

Signatures

N/A

Processes

C:\Windows\system32\cmd.exe

C:\Windows\system32\cmd.exe /c "C:\Users\Admin\AppData\Local\Temp\C11Bootstrapper\Start.bat"

Network

Country Destination Domain Proto
NL 52.111.243.29:443 tcp
US 8.8.8.8:53 11.227.111.52.in-addr.arpa udp
US 8.8.8.8:53 249.197.17.2.in-addr.arpa udp
US 8.8.8.8:53 88.156.103.20.in-addr.arpa udp
NL 23.62.61.155:443 www.bing.com 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
US 8.8.8.8:53 200.197.79.204.in-addr.arpa udp
US 8.8.8.8:53 54.120.234.20.in-addr.arpa udp

Files

N/A