Malware Analysis Report

2024-10-16 05:21

Sample ID 240729-wfktvssckj
Target fc3c83491b7c122cd32c9f64d3cd4c0c44abfd97ff90d6a43cfd1f17eb610566
SHA256 fc3c83491b7c122cd32c9f64d3cd4c0c44abfd97ff90d6a43cfd1f17eb610566
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

fc3c83491b7c122cd32c9f64d3cd4c0c44abfd97ff90d6a43cfd1f17eb610566

Threat Level: Known bad

The file fc3c83491b7c122cd32c9f64d3cd4c0c44abfd97ff90d6a43cfd1f17eb610566 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 17:51

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 17:51

Reported

2024-07-29 17:54

Platform

win7-20240708-en

Max time kernel

140s

Max time network

138s

Command Line

"C:\Users\Admin\AppData\Local\Temp\fc3c83491b7c122cd32c9f64d3cd4c0c44abfd97ff90d6a43cfd1f17eb610566.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\fc3c83491b7c122cd32c9f64d3cd4c0c44abfd97ff90d6a43cfd1f17eb610566.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\fc3c83491b7c122cd32c9f64d3cd4c0c44abfd97ff90d6a43cfd1f17eb610566.exe

"C:\Users\Admin\AppData\Local\Temp\fc3c83491b7c122cd32c9f64d3cd4c0c44abfd97ff90d6a43cfd1f17eb610566.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/900-0-0x00000000002D0000-0x0000000000317000-memory.dmp

memory/900-1-0x0000000000400000-0x000000000044B000-memory.dmp

memory/900-2-0x0000000000370000-0x00000000003A3000-memory.dmp

memory/900-3-0x0000000000400000-0x000000000045F000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-07-29 17:51

Reported

2024-07-29 17:55

Platform

win10v2004-20240729-en

Max time kernel

141s

Max time network

126s

Command Line

"C:\Users\Admin\AppData\Local\Temp\fc3c83491b7c122cd32c9f64d3cd4c0c44abfd97ff90d6a43cfd1f17eb610566.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\fc3c83491b7c122cd32c9f64d3cd4c0c44abfd97ff90d6a43cfd1f17eb610566.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\fc3c83491b7c122cd32c9f64d3cd4c0c44abfd97ff90d6a43cfd1f17eb610566.exe

"C:\Users\Admin\AppData\Local\Temp\fc3c83491b7c122cd32c9f64d3cd4c0c44abfd97ff90d6a43cfd1f17eb610566.exe"

Network

Country Destination Domain Proto
US 8.8.8.8:53 2.159.190.20.in-addr.arpa udp
US 8.8.8.8:53 8.8.8.8.in-addr.arpa udp
US 8.8.8.8:53 26.35.223.20.in-addr.arpa udp
NL 5.39.222.84:80 tcp
US 8.8.8.8:53 240.143.123.92.in-addr.arpa udp
NL 5.39.222.84:80 tcp

Files

memory/3404-0-0x00007FF924CB0000-0x00007FF924EA5000-memory.dmp

memory/3404-1-0x0000000002260000-0x0000000002293000-memory.dmp

memory/3404-2-0x0000000000400000-0x000000000045F000-memory.dmp

memory/3404-4-0x00007FF924CB0000-0x00007FF924EA5000-memory.dmp