Malware Analysis Report

2025-03-15 06:05

Sample ID 240728-g6jl6asdrn
Target a555e21814a046442cd89846d1cefb3d85fdfa9b6f6011fc75f6bdf0b46c7c1f
SHA256 a555e21814a046442cd89846d1cefb3d85fdfa9b6f6011fc75f6bdf0b46c7c1f
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

a555e21814a046442cd89846d1cefb3d85fdfa9b6f6011fc75f6bdf0b46c7c1f

Threat Level: Known bad

The file a555e21814a046442cd89846d1cefb3d85fdfa9b6f6011fc75f6bdf0b46c7c1f 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 06:24

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-07-28 06:24

Reported

2024-07-28 06:27

Platform

win7-20240704-en

Max time kernel

140s

Max time network

140s

Command Line

"C:\Users\Admin\AppData\Local\Temp\a555e21814a046442cd89846d1cefb3d85fdfa9b6f6011fc75f6bdf0b46c7c1f.exe"

Signatures

Cobaltstrike

trojan backdoor cobaltstrike

Processes

C:\Users\Admin\AppData\Local\Temp\a555e21814a046442cd89846d1cefb3d85fdfa9b6f6011fc75f6bdf0b46c7c1f.exe

"C:\Users\Admin\AppData\Local\Temp\a555e21814a046442cd89846d1cefb3d85fdfa9b6f6011fc75f6bdf0b46c7c1f.exe"

Network

Country Destination Domain Proto
CN 47.100.16.83:9999 tcp
CN 47.100.16.83:9999 tcp
CN 47.100.16.83:9999 tcp
CN 47.100.16.83:9999 tcp
CN 47.100.16.83:9999 tcp
CN 47.100.16.83:9999 tcp
CN 47.100.16.83:9999 tcp

Files

memory/2088-0-0x0000000000020000-0x0000000000021000-memory.dmp

memory/2088-1-0x0000000000400000-0x000000000040C000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-07-28 06:24

Reported

2024-07-28 06:27

Platform

win10v2004-20240709-en

Max time kernel

148s

Max time network

151s

Command Line

"C:\Users\Admin\AppData\Local\Temp\a555e21814a046442cd89846d1cefb3d85fdfa9b6f6011fc75f6bdf0b46c7c1f.exe"

Signatures

Cobaltstrike

trojan backdoor cobaltstrike

Processes

C:\Users\Admin\AppData\Local\Temp\a555e21814a046442cd89846d1cefb3d85fdfa9b6f6011fc75f6bdf0b46c7c1f.exe

"C:\Users\Admin\AppData\Local\Temp\a555e21814a046442cd89846d1cefb3d85fdfa9b6f6011fc75f6bdf0b46c7c1f.exe"

Network

Country Destination Domain Proto
CN 47.100.16.83:9999 tcp
US 8.8.8.8:53 183.142.211.20.in-addr.arpa udp
US 8.8.8.8:53 72.32.126.40.in-addr.arpa udp
US 8.8.8.8:53 73.144.22.2.in-addr.arpa udp
US 8.8.8.8:53 209.205.72.20.in-addr.arpa udp
CN 47.100.16.83:9999 tcp
US 8.8.8.8:53 183.59.114.20.in-addr.arpa udp
US 8.8.8.8:53 56.126.166.20.in-addr.arpa udp
US 8.8.8.8:53 147.142.123.92.in-addr.arpa udp
CN 47.100.16.83:9999 tcp
CN 47.100.16.83:9999 tcp
US 8.8.8.8:53 55.36.223.20.in-addr.arpa udp
CN 47.100.16.83:9999 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
CN 47.100.16.83:9999 tcp
CN 47.100.16.83:9999 tcp
CN 47.100.16.83:9999 tcp

Files

memory/4616-0-0x0000000000020000-0x0000000000021000-memory.dmp

memory/4616-1-0x0000000000400000-0x000000000040C000-memory.dmp