Malware Analysis Report

2024-08-06 07:58

Sample ID 230831-zlnpgsac5s
Target 24d99ba5654cdf31141c66fd9417b7e0.zip
SHA256 dc71ae1fea5c46b2930ed33dc807c54f87f9f40b7256fe5dadf08f144b315fce
Tags
1359593325 cobaltstrike backdoor trojan
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

dc71ae1fea5c46b2930ed33dc807c54f87f9f40b7256fe5dadf08f144b315fce

Threat Level: Known bad

The file 24d99ba5654cdf31141c66fd9417b7e0.zip was found to be: Known bad.

Malicious Activity Summary

1359593325 cobaltstrike backdoor trojan

Cobaltstrike family

Cobaltstrike

Unsigned PE

MITRE ATT&CK Matrix

N/A

Analysis: static1

Detonation Overview

Reported

2023-08-31 20:48

Signatures

Cobaltstrike family

cobaltstrike

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2023-08-31 20:48

Reported

2023-08-31 20:51

Platform

win7-20230712-en

Max time kernel

126s

Max time network

139s

Command Line

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

Signatures

Cobaltstrike

trojan backdoor cobaltstrike

Processes

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

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

Network

Country Destination Domain Proto
CN 120.79.181.138:443 tcp
CN 120.79.181.138:443 tcp
CN 120.79.181.138:443 tcp
CN 120.79.181.138:443 tcp

Files

memory/1368-0-0x0000000000400000-0x000000000043C300-memory.dmp

memory/1368-1-0x0000000000220000-0x000000000025D000-memory.dmp

memory/1368-2-0x0000000000400000-0x000000000043C300-memory.dmp

memory/1368-3-0x0000000000220000-0x000000000025D000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2023-08-31 20:48

Reported

2023-08-31 20:51

Platform

win10v2004-20230703-en

Max time kernel

141s

Max time network

158s

Command Line

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

Signatures

Cobaltstrike

trojan backdoor cobaltstrike

Processes

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

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

Network

Country Destination Domain Proto
US 8.8.8.8:53 2.136.104.51.in-addr.arpa udp
CN 120.79.181.138:443 tcp
US 8.8.8.8:53 17.160.190.20.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 146.78.124.51.in-addr.arpa udp
US 8.8.8.8:53 158.240.127.40.in-addr.arpa udp
US 8.8.8.8:53 86.23.85.13.in-addr.arpa udp
US 8.8.8.8:53 206.23.85.13.in-addr.arpa udp
US 8.8.8.8:53 64.13.109.52.in-addr.arpa udp
CN 120.79.181.138:443 tcp
US 8.8.8.8:53 126.177.238.8.in-addr.arpa udp
US 8.8.8.8:53 168.117.168.52.in-addr.arpa udp

Files

memory/440-0-0x0000000000400000-0x000000000043C300-memory.dmp

memory/440-1-0x0000000000510000-0x000000000054D000-memory.dmp

memory/440-2-0x0000000000400000-0x000000000043C300-memory.dmp

memory/440-3-0x0000000000510000-0x000000000054D000-memory.dmp