Malware Analysis Report

2025-08-10 19:32

Sample ID 240225-jgvdgaff7y
Target 8f81fa9b717b7314e270a36c883549d3aaa5c68907e1056b5de1989bf3fbffd6
SHA256 8f81fa9b717b7314e270a36c883549d3aaa5c68907e1056b5de1989bf3fbffd6
Tags
cobaltstrike backdoor trojan
score
10/10

Table of Contents

Analysis Overview

MITRE ATT&CK

Analysis: static1

Detonation Overview

Signatures

Analysis: behavioral2

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis: behavioral1

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis Overview

score
10/10

SHA256

8f81fa9b717b7314e270a36c883549d3aaa5c68907e1056b5de1989bf3fbffd6

Threat Level: Known bad

The file 8f81fa9b717b7314e270a36c883549d3aaa5c68907e1056b5de1989bf3fbffd6 was found to be: Known bad.

Malicious Activity Summary

cobaltstrike backdoor trojan

Cobaltstrike

Cobaltstrike family

Unsigned PE

MITRE ATT&CK

N/A

Analysis: static1

Detonation Overview

Reported

2024-02-25 07:38

Signatures

Cobaltstrike family

cobaltstrike

Unsigned PE

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

Analysis: behavioral2

Detonation Overview

Submitted

2024-02-25 07:38

Reported

2024-02-25 07:41

Platform

win10v2004-20240221-en

Max time kernel

149s

Max time network

152s

Command Line

"C:\Users\Admin\AppData\Local\Temp\8f81fa9b717b7314e270a36c883549d3aaa5c68907e1056b5de1989bf3fbffd6.exe"

Signatures

Cobaltstrike

trojan backdoor cobaltstrike

Processes

C:\Users\Admin\AppData\Local\Temp\8f81fa9b717b7314e270a36c883549d3aaa5c68907e1056b5de1989bf3fbffd6.exe

"C:\Users\Admin\AppData\Local\Temp\8f81fa9b717b7314e270a36c883549d3aaa5c68907e1056b5de1989bf3fbffd6.exe"

Network

Country Destination Domain Proto
US 8.8.8.8:53 75.159.190.20.in-addr.arpa udp
US 8.8.8.8:53 g.bing.com udp
US 204.79.197.200:443 g.bing.com tcp
US 8.8.8.8:53 241.154.82.20.in-addr.arpa udp
US 8.8.8.8:53 180.178.17.96.in-addr.arpa udp
US 8.8.8.8:53 200.197.79.204.in-addr.arpa udp
US 8.8.8.8:53 41.110.16.96.in-addr.arpa udp
US 8.8.8.8:53 update.office-oa.org udp
US 8.8.8.8:53 157.123.68.40.in-addr.arpa udp
US 8.8.8.8:53 56.126.166.20.in-addr.arpa udp
US 8.8.8.8:53 18.134.221.88.in-addr.arpa udp
US 8.8.8.8:53 194.178.17.96.in-addr.arpa udp
US 8.8.8.8:53 19.229.111.52.in-addr.arpa udp
US 8.8.8.8:53 48.192.11.51.in-addr.arpa udp

Files

memory/3752-0-0x000001E1C84C0000-0x000001E1C84C1000-memory.dmp

Analysis: behavioral1

Detonation Overview

Submitted

2024-02-25 07:38

Reported

2024-02-25 07:41

Platform

win7-20240221-en

Max time kernel

117s

Max time network

119s

Command Line

"C:\Users\Admin\AppData\Local\Temp\8f81fa9b717b7314e270a36c883549d3aaa5c68907e1056b5de1989bf3fbffd6.exe"

Signatures

Cobaltstrike

trojan backdoor cobaltstrike

Processes

C:\Users\Admin\AppData\Local\Temp\8f81fa9b717b7314e270a36c883549d3aaa5c68907e1056b5de1989bf3fbffd6.exe

"C:\Users\Admin\AppData\Local\Temp\8f81fa9b717b7314e270a36c883549d3aaa5c68907e1056b5de1989bf3fbffd6.exe"

Network

Country Destination Domain Proto
US 8.8.8.8:53 update.office-oa.org udp

Files

memory/1704-0-0x0000000000740000-0x0000000000741000-memory.dmp