Malware Analysis Report

2024-08-06 11:03

Sample ID 240226-bh5xlahf6y
Target 2024-02-26_4a0231e832bd83b9d61f9204a55cfc41_ryuk
SHA256 6163124b4ad1253da837071365389c2fddf48050776bf13e9af5065bb6b10023
Tags
cobaltstrike 100000000 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

6163124b4ad1253da837071365389c2fddf48050776bf13e9af5065bb6b10023

Threat Level: Known bad

The file 2024-02-26_4a0231e832bd83b9d61f9204a55cfc41_ryuk was found to be: Known bad.

Malicious Activity Summary

cobaltstrike 100000000 backdoor trojan

Cobaltstrike

Unsigned PE

MITRE ATT&CK Matrix

N/A

Analysis: static1

Detonation Overview

Reported

2024-02-26 01:09

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-02-26 01:09

Reported

2024-02-26 01:12

Platform

win7-20240221-en

Max time kernel

120s

Max time network

125s

Command Line

"C:\Users\Admin\AppData\Local\Temp\2024-02-26_4a0231e832bd83b9d61f9204a55cfc41_ryuk.exe"

Signatures

N/A

Processes

C:\Users\Admin\AppData\Local\Temp\2024-02-26_4a0231e832bd83b9d61f9204a55cfc41_ryuk.exe

"C:\Users\Admin\AppData\Local\Temp\2024-02-26_4a0231e832bd83b9d61f9204a55cfc41_ryuk.exe"

Network

N/A

Files

N/A

Analysis: behavioral2

Detonation Overview

Submitted

2024-02-26 01:09

Reported

2024-02-26 01:12

Platform

win10v2004-20240221-en

Max time kernel

145s

Max time network

146s

Command Line

"C:\Users\Admin\AppData\Local\Temp\2024-02-26_4a0231e832bd83b9d61f9204a55cfc41_ryuk.exe"

Signatures

Cobaltstrike

trojan backdoor cobaltstrike

Processes

C:\Users\Admin\AppData\Local\Temp\2024-02-26_4a0231e832bd83b9d61f9204a55cfc41_ryuk.exe

"C:\Users\Admin\AppData\Local\Temp\2024-02-26_4a0231e832bd83b9d61f9204a55cfc41_ryuk.exe"

Network

Country Destination Domain Proto
HK 154.204.58.234:4433 154.204.58.234 tcp
US 8.8.8.8:53 234.58.204.154.in-addr.arpa udp
US 8.8.8.8:53 75.159.190.20.in-addr.arpa udp
US 8.8.8.8:53 241.154.82.20.in-addr.arpa udp
US 8.8.8.8:53 194.178.17.96.in-addr.arpa udp
US 8.8.8.8:53 88.156.103.20.in-addr.arpa udp
US 8.8.8.8:53 41.110.16.96.in-addr.arpa udp
HK 154.204.58.234:4433 154.204.58.234 tcp
HK 154.204.58.234:4433 154.204.58.234 tcp
HK 154.204.58.234:4433 154.204.58.234 tcp
US 8.8.8.8:53 26.165.165.52.in-addr.arpa udp
HK 154.204.58.234:4433 154.204.58.234 tcp
US 8.8.8.8:53 56.126.166.20.in-addr.arpa udp
US 8.8.8.8:53 140.71.91.104.in-addr.arpa udp
HK 154.204.58.234:4433 154.204.58.234 tcp
HK 154.204.58.234:4433 154.204.58.234 tcp
US 8.8.8.8:53 173.178.17.96.in-addr.arpa udp
HK 154.204.58.234:4433 154.204.58.234 tcp
HK 154.204.58.234:4433 154.204.58.234 tcp
HK 154.204.58.234:4433 154.204.58.234 tcp
US 8.8.8.8:53 180.178.17.96.in-addr.arpa udp
US 8.8.8.8:53 29.243.111.52.in-addr.arpa udp
HK 154.204.58.234:4433 154.204.58.234 tcp
HK 154.204.58.234:4433 154.204.58.234 tcp
HK 154.204.58.234:4433 154.204.58.234 tcp
HK 154.204.58.234:4433 154.204.58.234 tcp
HK 154.204.58.234:4433 154.204.58.234 tcp

Files

memory/4244-0-0x0000014340370000-0x0000014340371000-memory.dmp

memory/4244-2-0x0000014342310000-0x0000014342710000-memory.dmp

memory/4244-1-0x0000014342710000-0x0000014342B82000-memory.dmp

memory/4244-3-0x0000014342310000-0x0000014342710000-memory.dmp