Malware Analysis Report

2025-03-15 06:06

Sample ID 240728-f363lstdra
Target 99e1b6fcc03bbfcfb08faf7d0289d6f6d50abc589984884997ca8dcaf9500b71
SHA256 99e1b6fcc03bbfcfb08faf7d0289d6f6d50abc589984884997ca8dcaf9500b71
Tags
cobaltstrike backdoor trojan
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: behavioral2

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis Overview

score
10/10

SHA256

99e1b6fcc03bbfcfb08faf7d0289d6f6d50abc589984884997ca8dcaf9500b71

Threat Level: Known bad

The file 99e1b6fcc03bbfcfb08faf7d0289d6f6d50abc589984884997ca8dcaf9500b71 was found to be: Known bad.

Malicious Activity Summary

cobaltstrike backdoor trojan

Cobaltstrike

Unsigned PE

MITRE ATT&CK

N/A

Analysis: static1

Detonation Overview

Reported

2024-07-28 05:24

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-07-28 05:24

Reported

2024-07-28 05:27

Platform

win7-20240704-en

Max time kernel

142s

Max time network

145s

Command Line

"C:\Users\Admin\AppData\Local\Temp\99e1b6fcc03bbfcfb08faf7d0289d6f6d50abc589984884997ca8dcaf9500b71.exe"

Signatures

Cobaltstrike

trojan backdoor cobaltstrike

Processes

C:\Users\Admin\AppData\Local\Temp\99e1b6fcc03bbfcfb08faf7d0289d6f6d50abc589984884997ca8dcaf9500b71.exe

"C:\Users\Admin\AppData\Local\Temp\99e1b6fcc03bbfcfb08faf7d0289d6f6d50abc589984884997ca8dcaf9500b71.exe"

Network

Country Destination Domain Proto
CN 39.101.72.235:8086 tcp
CN 39.101.72.235:8086 tcp
CN 39.101.72.235:8086 tcp
CN 39.101.72.235:8086 tcp
CN 39.101.72.235:8086 tcp
CN 39.101.72.235:8086 tcp
CN 39.101.72.235:8086 tcp

Files

memory/2292-0-0x0000000000020000-0x0000000000021000-memory.dmp

memory/2292-1-0x0000000000400000-0x000000000040C000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-07-28 05:24

Reported

2024-07-28 05:27

Platform

win10v2004-20240709-en

Max time kernel

148s

Max time network

155s

Command Line

"C:\Users\Admin\AppData\Local\Temp\99e1b6fcc03bbfcfb08faf7d0289d6f6d50abc589984884997ca8dcaf9500b71.exe"

Signatures

Cobaltstrike

trojan backdoor cobaltstrike

Processes

C:\Users\Admin\AppData\Local\Temp\99e1b6fcc03bbfcfb08faf7d0289d6f6d50abc589984884997ca8dcaf9500b71.exe

"C:\Users\Admin\AppData\Local\Temp\99e1b6fcc03bbfcfb08faf7d0289d6f6d50abc589984884997ca8dcaf9500b71.exe"

Network

Country Destination Domain Proto
US 8.8.8.8:53 241.150.49.20.in-addr.arpa udp
US 8.8.8.8:53 240.221.184.93.in-addr.arpa udp
CN 39.101.72.235:8086 tcp
US 8.8.8.8:53 136.32.126.40.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 55.36.223.20.in-addr.arpa udp
US 8.8.8.8:53 154.239.44.20.in-addr.arpa udp
CN 39.101.72.235:8086 tcp
US 8.8.8.8:53 50.23.12.20.in-addr.arpa udp
US 8.8.8.8:53 206.23.85.13.in-addr.arpa udp
US 8.8.8.8:53 147.142.123.92.in-addr.arpa udp
CN 39.101.72.235:8086 tcp
US 8.8.8.8:53 73.144.22.2.in-addr.arpa udp
CN 39.101.72.235:8086 tcp
US 8.8.8.8:53 26.35.223.20.in-addr.arpa udp
CN 39.101.72.235:8086 tcp
US 8.8.8.8:53 48.229.111.52.in-addr.arpa udp
CN 39.101.72.235:8086 tcp
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 150.171.27.10:443 tse1.mm.bing.net tcp
US 8.8.8.8:53 205.47.74.20.in-addr.arpa udp
CN 39.101.72.235:8086 tcp
CN 39.101.72.235:8086 tcp
US 8.8.8.8:53 85.65.42.20.in-addr.arpa udp

Files

memory/4948-0-0x0000000000020000-0x0000000000021000-memory.dmp

memory/4948-1-0x0000000000400000-0x000000000040C000-memory.dmp