Malware Analysis Report

2024-10-16 05:21

Sample ID 240729-vc8wvatbkc
Target f141b7ba531a6a74d174bc77f6d570cebc6862d2195040d06e7d2107c53b9d2f
SHA256 f141b7ba531a6a74d174bc77f6d570cebc6862d2195040d06e7d2107c53b9d2f
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

f141b7ba531a6a74d174bc77f6d570cebc6862d2195040d06e7d2107c53b9d2f

Threat Level: Known bad

The file f141b7ba531a6a74d174bc77f6d570cebc6862d2195040d06e7d2107c53b9d2f 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 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

win7-20240704-en

Max time kernel

140s

Max time network

138s

Command Line

"C:\Users\Admin\AppData\Local\Temp\f141b7ba531a6a74d174bc77f6d570cebc6862d2195040d06e7d2107c53b9d2f.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\f141b7ba531a6a74d174bc77f6d570cebc6862d2195040d06e7d2107c53b9d2f.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\f141b7ba531a6a74d174bc77f6d570cebc6862d2195040d06e7d2107c53b9d2f.exe

"C:\Users\Admin\AppData\Local\Temp\f141b7ba531a6a74d174bc77f6d570cebc6862d2195040d06e7d2107c53b9d2f.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/1748-0-0x0000000000220000-0x0000000000267000-memory.dmp

memory/1748-1-0x0000000000400000-0x000000000044B000-memory.dmp

memory/1748-2-0x0000000000360000-0x0000000000393000-memory.dmp

memory/1748-3-0x0000000000400000-0x000000000045F000-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

140s

Max time network

126s

Command Line

"C:\Users\Admin\AppData\Local\Temp\f141b7ba531a6a74d174bc77f6d570cebc6862d2195040d06e7d2107c53b9d2f.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\f141b7ba531a6a74d174bc77f6d570cebc6862d2195040d06e7d2107c53b9d2f.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\f141b7ba531a6a74d174bc77f6d570cebc6862d2195040d06e7d2107c53b9d2f.exe

"C:\Users\Admin\AppData\Local\Temp\f141b7ba531a6a74d174bc77f6d570cebc6862d2195040d06e7d2107c53b9d2f.exe"

Network

Country Destination Domain Proto
US 8.8.8.8:53 8.8.8.8.in-addr.arpa udp
US 8.8.8.8:53 28.118.140.52.in-addr.arpa udp
US 8.8.8.8:53 g.bing.com udp
US 204.79.197.237:443 g.bing.com tcp
US 8.8.8.8:53 237.197.79.204.in-addr.arpa udp
US 8.8.8.8:53 73.159.190.20.in-addr.arpa udp
US 8.8.8.8:53 81.144.22.2.in-addr.arpa udp
NL 5.39.222.84:80 tcp
US 8.8.8.8:53 97.17.167.52.in-addr.arpa udp
US 8.8.8.8:53 103.169.127.40.in-addr.arpa udp
US 8.8.8.8:53 206.23.85.13.in-addr.arpa udp
US 8.8.8.8:53 18.134.221.88.in-addr.arpa udp
US 8.8.8.8:53 205.47.74.20.in-addr.arpa udp
NL 5.39.222.84:80 tcp
US 8.8.8.8:53 21.236.111.52.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

Files

memory/3304-1-0x0000000000400000-0x000000000044B000-memory.dmp

memory/3304-0-0x00000000020B0000-0x00000000020F7000-memory.dmp

memory/3304-2-0x0000000002250000-0x0000000002283000-memory.dmp

memory/3304-3-0x0000000000400000-0x000000000045F000-memory.dmp