Malware Analysis Report

2024-10-16 05:21

Sample ID 240729-2s9awavbqn
Target 2a3e7f7bc21085c75f9b47713e67026fab1bd113b53a6f5aa0d4fdfefd0755c5
SHA256 2a3e7f7bc21085c75f9b47713e67026fab1bd113b53a6f5aa0d4fdfefd0755c5
Tags
cobaltstrike 1359593325 backdoor discovery trojan cryptone packer
score
10/10

Table of Contents

Analysis Overview

MITRE ATT&CK

Enterprise Matrix V15

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

2a3e7f7bc21085c75f9b47713e67026fab1bd113b53a6f5aa0d4fdfefd0755c5

Threat Level: Known bad

The file 2a3e7f7bc21085c75f9b47713e67026fab1bd113b53a6f5aa0d4fdfefd0755c5 was found to be: Known bad.

Malicious Activity Summary

cobaltstrike 1359593325 backdoor discovery trojan cryptone packer

Cobaltstrike

CryptOne packer

System Location Discovery: System Language Discovery

Unsigned PE

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-07-29 22:51

Signatures

CryptOne packer

cryptone packer
Description Indicator Process Target
N/A N/A N/A N/A

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-07-29 22:51

Reported

2024-07-29 22:54

Platform

win7-20240729-en

Max time kernel

140s

Max time network

137s

Command Line

"C:\Users\Admin\AppData\Local\Temp\2a3e7f7bc21085c75f9b47713e67026fab1bd113b53a6f5aa0d4fdfefd0755c5.exe"

Signatures

Cobaltstrike

trojan backdoor cobaltstrike

System Location Discovery: System Language Discovery

discovery
Description Indicator Process Target
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Users\Admin\AppData\Local\Temp\2a3e7f7bc21085c75f9b47713e67026fab1bd113b53a6f5aa0d4fdfefd0755c5.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\2a3e7f7bc21085c75f9b47713e67026fab1bd113b53a6f5aa0d4fdfefd0755c5.exe

"C:\Users\Admin\AppData\Local\Temp\2a3e7f7bc21085c75f9b47713e67026fab1bd113b53a6f5aa0d4fdfefd0755c5.exe"

Network

Country Destination Domain Proto
NL 5.39.222.84:80 tcp
NL 5.39.222.84:80 tcp
NL 5.39.222.84:80 tcp
NL 5.39.222.84:80 tcp

Files

memory/2156-0-0x00000000001B0000-0x00000000001F7000-memory.dmp

memory/2156-1-0x0000000000400000-0x000000000044B000-memory.dmp

memory/2156-2-0x0000000000660000-0x0000000000693000-memory.dmp

memory/2156-3-0x0000000000400000-0x000000000045F000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-07-29 22:51

Reported

2024-07-29 22:54

Platform

win10v2004-20240709-en

Max time kernel

150s

Max time network

156s

Command Line

"C:\Users\Admin\AppData\Local\Temp\2a3e7f7bc21085c75f9b47713e67026fab1bd113b53a6f5aa0d4fdfefd0755c5.exe"

Signatures

Cobaltstrike

trojan backdoor cobaltstrike

System Location Discovery: System Language Discovery

discovery
Description Indicator Process Target
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Users\Admin\AppData\Local\Temp\2a3e7f7bc21085c75f9b47713e67026fab1bd113b53a6f5aa0d4fdfefd0755c5.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\2a3e7f7bc21085c75f9b47713e67026fab1bd113b53a6f5aa0d4fdfefd0755c5.exe

"C:\Users\Admin\AppData\Local\Temp\2a3e7f7bc21085c75f9b47713e67026fab1bd113b53a6f5aa0d4fdfefd0755c5.exe"

Network

Country Destination Domain Proto
US 8.8.8.8:53 64.159.190.20.in-addr.arpa udp
NL 5.39.222.84:80 tcp
US 8.8.8.8:53 55.36.223.20.in-addr.arpa udp
US 8.8.8.8:53 154.239.44.20.in-addr.arpa udp
US 8.8.8.8:53 232.168.11.51.in-addr.arpa udp
US 8.8.8.8:53 86.23.85.13.in-addr.arpa udp
US 8.8.8.8:53 171.39.242.20.in-addr.arpa udp
US 8.8.8.8:53 172.210.232.199.in-addr.arpa udp
US 8.8.8.8:53 43.58.199.20.in-addr.arpa udp
NL 5.39.222.84:80 tcp
US 8.8.8.8:53 48.229.111.52.in-addr.arpa udp
US 8.8.8.8:53 tse1.mm.bing.net udp
US 150.171.28.10:443 tse1.mm.bing.net tcp
US 150.171.28.10:443 tse1.mm.bing.net tcp
US 150.171.28.10:443 tse1.mm.bing.net tcp
US 150.171.28.10:443 tse1.mm.bing.net tcp
US 150.171.28.10:443 tse1.mm.bing.net tcp
US 8.8.8.8:53 10.28.171.150.in-addr.arpa udp
US 8.8.8.8:53 udp

Files

memory/3012-0-0x0000000000600000-0x0000000000647000-memory.dmp

memory/3012-1-0x0000000000400000-0x000000000044B000-memory.dmp

memory/3012-2-0x00000000023A0000-0x00000000023D3000-memory.dmp

memory/3012-3-0x0000000000400000-0x000000000045F000-memory.dmp