Malware Analysis Report

2025-08-05 14:15

Sample ID 240305-y6lj7ahd74
Target b594afc619b7f19b04c125b093ddb099
SHA256 b4cfc49d647ebeffb99579dbd4be2a4ca779e3d36b60656aaa9d616ac343e991
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

b4cfc49d647ebeffb99579dbd4be2a4ca779e3d36b60656aaa9d616ac343e991

Threat Level: Known bad

The file b594afc619b7f19b04c125b093ddb099 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

2024-03-05 20:23

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-03-05 20:23

Reported

2024-03-05 20:26

Platform

win7-20240221-en

Max time kernel

148s

Max time network

152s

Command Line

"C:\Users\Admin\AppData\Local\Temp\b594afc619b7f19b04c125b093ddb099.exe"

Signatures

Cobaltstrike

trojan backdoor cobaltstrike

Processes

C:\Users\Admin\AppData\Local\Temp\b594afc619b7f19b04c125b093ddb099.exe

"C:\Users\Admin\AppData\Local\Temp\b594afc619b7f19b04c125b093ddb099.exe"

Network

Country Destination Domain Proto
CN 122.9.157.122:800 tcp
CN 122.9.157.122:800 tcp
CN 122.9.157.122:800 tcp
CN 122.9.157.122:800 tcp
CN 122.9.157.122:800 tcp
CN 122.9.157.122:800 tcp
CN 122.9.157.122:800 tcp
CN 122.9.157.122:800 tcp

Files

memory/2240-0-0x00000000003E0000-0x00000000003E1000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-03-05 20:23

Reported

2024-03-05 20:26

Platform

win10v2004-20240226-en

Max time kernel

147s

Max time network

150s

Command Line

"C:\Users\Admin\AppData\Local\Temp\b594afc619b7f19b04c125b093ddb099.exe"

Signatures

Cobaltstrike

trojan backdoor cobaltstrike

Processes

C:\Users\Admin\AppData\Local\Temp\b594afc619b7f19b04c125b093ddb099.exe

"C:\Users\Admin\AppData\Local\Temp\b594afc619b7f19b04c125b093ddb099.exe"

Network

Country Destination Domain Proto
CN 122.9.157.122:800 tcp
US 8.8.8.8:53 g.bing.com udp
US 204.79.197.200:443 g.bing.com tcp
US 8.8.8.8:53 200.197.79.204.in-addr.arpa udp
US 8.8.8.8:53 200.178.17.96.in-addr.arpa udp
US 8.8.8.8:53 241.150.49.20.in-addr.arpa udp
US 8.8.8.8:53 9.228.82.20.in-addr.arpa udp
US 8.8.8.8:53 157.123.68.40.in-addr.arpa udp
US 8.8.8.8:53 195.233.44.23.in-addr.arpa udp
US 8.8.8.8:53 58.55.71.13.in-addr.arpa udp
US 8.8.8.8:53 18.31.95.13.in-addr.arpa udp
CN 122.9.157.122:800 tcp
US 8.8.8.8:53 183.1.37.23.in-addr.arpa udp
US 8.8.8.8:53 119.110.54.20.in-addr.arpa udp
US 8.8.8.8:53 134.71.91.104.in-addr.arpa udp
US 8.8.8.8:53 202.178.17.96.in-addr.arpa udp
NL 52.142.223.178:80 tcp
CN 122.9.157.122:800 tcp
US 8.8.8.8:53 152.178.17.96.in-addr.arpa udp
CN 122.9.157.122:800 tcp
US 8.8.8.8:53 0.205.248.87.in-addr.arpa udp
US 8.8.8.8:53 55.179.17.96.in-addr.arpa udp
US 8.8.8.8:53 43.58.199.20.in-addr.arpa udp
CN 122.9.157.122:800 tcp
US 8.8.8.8:53 30.243.111.52.in-addr.arpa udp
CN 122.9.157.122:800 tcp
US 8.8.8.8:53 59.179.17.96.in-addr.arpa udp
US 8.8.8.8:53 23.160.77.104.in-addr.arpa udp
US 8.8.8.8:53 tse1.mm.bing.net 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
CN 122.9.157.122:800 tcp
CN 122.9.157.122:800 tcp

Files

memory/2496-0-0x000002F9AA6F0000-0x000002F9AA6F1000-memory.dmp