Malware Analysis Report

2024-10-16 05:21

Sample ID 240729-vc8wvatbkb
Target eff8d21485f6ba711a5f9d7ed9df0b8c3d9d5873c77e3371d2857ebaa1ace095
SHA256 eff8d21485f6ba711a5f9d7ed9df0b8c3d9d5873c77e3371d2857ebaa1ace095
Tags
cryptone packer cobaltstrike 1359593325 backdoor discovery trojan
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

eff8d21485f6ba711a5f9d7ed9df0b8c3d9d5873c77e3371d2857ebaa1ace095

Threat Level: Known bad

The file eff8d21485f6ba711a5f9d7ed9df0b8c3d9d5873c77e3371d2857ebaa1ace095 was found to be: Known bad.

Malicious Activity Summary

cryptone packer cobaltstrike 1359593325 backdoor discovery trojan

Cobaltstrike

CryptOne packer

Unsigned PE

System Location Discovery: System Language Discovery

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-07-29 16:51

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 16:51

Reported

2024-07-29 16:54

Platform

win7-20240705-en

Max time kernel

141s

Max time network

141s

Command Line

"C:\Users\Admin\AppData\Local\Temp\eff8d21485f6ba711a5f9d7ed9df0b8c3d9d5873c77e3371d2857ebaa1ace095.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\eff8d21485f6ba711a5f9d7ed9df0b8c3d9d5873c77e3371d2857ebaa1ace095.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\eff8d21485f6ba711a5f9d7ed9df0b8c3d9d5873c77e3371d2857ebaa1ace095.exe

"C:\Users\Admin\AppData\Local\Temp\eff8d21485f6ba711a5f9d7ed9df0b8c3d9d5873c77e3371d2857ebaa1ace095.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/1124-1-0x0000000000400000-0x000000000044B000-memory.dmp

memory/1124-0-0x0000000000220000-0x0000000000267000-memory.dmp

memory/1124-2-0x0000000000270000-0x00000000002A3000-memory.dmp

memory/1124-3-0x0000000000400000-0x000000000045F000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-07-29 16:51

Reported

2024-07-29 16:54

Platform

win10v2004-20240709-en

Max time kernel

142s

Max time network

158s

Command Line

"C:\Users\Admin\AppData\Local\Temp\eff8d21485f6ba711a5f9d7ed9df0b8c3d9d5873c77e3371d2857ebaa1ace095.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\eff8d21485f6ba711a5f9d7ed9df0b8c3d9d5873c77e3371d2857ebaa1ace095.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\eff8d21485f6ba711a5f9d7ed9df0b8c3d9d5873c77e3371d2857ebaa1ace095.exe

"C:\Users\Admin\AppData\Local\Temp\eff8d21485f6ba711a5f9d7ed9df0b8c3d9d5873c77e3371d2857ebaa1ace095.exe"

Network

Country Destination Domain Proto
US 8.8.8.8:53 g.bing.com udp
US 204.79.197.237:443 g.bing.com tcp
US 8.8.8.8:53 28.118.140.52.in-addr.arpa udp
NL 5.39.222.84:80 tcp
US 8.8.8.8:53 237.197.79.204.in-addr.arpa udp
US 8.8.8.8:53 172.214.232.199.in-addr.arpa udp
US 8.8.8.8:53 136.32.126.40.in-addr.arpa udp
US 8.8.8.8:53 26.35.223.20.in-addr.arpa udp
US 8.8.8.8:53 183.142.211.20.in-addr.arpa udp
US 8.8.8.8:53 26.165.165.52.in-addr.arpa udp
US 8.8.8.8:53 198.187.3.20.in-addr.arpa udp
US 8.8.8.8:53 99.58.20.217.in-addr.arpa udp
US 8.8.8.8:53 73.144.22.2.in-addr.arpa udp
IE 52.111.236.23:443 tcp
NL 5.39.222.84:80 tcp
US 8.8.8.8:53 11.227.111.52.in-addr.arpa udp
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
US 8.8.8.8:53 43.58.199.20.in-addr.arpa udp

Files

memory/1340-0-0x00000000021B0000-0x00000000021F7000-memory.dmp

memory/1340-1-0x0000000000400000-0x000000000044B000-memory.dmp

memory/1340-2-0x0000000002390000-0x00000000023C3000-memory.dmp

memory/1340-3-0x0000000000400000-0x000000000045F000-memory.dmp