Malware Analysis Report

2024-10-23 16:23

Sample ID 240522-prfkysbg3t
Target 2024-05-22_4ca9f8f70849c8902ef42964b1ada4b6_stop
SHA256 bc7d80ea2c1da3875c0416bf31fd61d85fce91de42a13fd8ad212aa05b75b28c
Tags
djvu
score
10/10

Table of Contents

Analysis Overview

MITRE ATT&CK

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

bc7d80ea2c1da3875c0416bf31fd61d85fce91de42a13fd8ad212aa05b75b28c

Threat Level: Known bad

The file 2024-05-22_4ca9f8f70849c8902ef42964b1ada4b6_stop was found to be: Known bad.

Malicious Activity Summary

djvu

Detected Djvu ransomware

Djvu family

Unsigned PE

Program crash

Suspicious use of WriteProcessMemory

MITRE ATT&CK

N/A

Analysis: static1

Detonation Overview

Reported

2024-05-22 12:33

Signatures

Detected Djvu ransomware

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

Djvu family

djvu

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-05-22 12:33

Reported

2024-05-22 12:44

Platform

win7-20240221-en

Max time kernel

119s

Max time network

125s

Command Line

"C:\Users\Admin\AppData\Local\Temp\2024-05-22_4ca9f8f70849c8902ef42964b1ada4b6_stop.exe"

Signatures

Processes

C:\Users\Admin\AppData\Local\Temp\2024-05-22_4ca9f8f70849c8902ef42964b1ada4b6_stop.exe

"C:\Users\Admin\AppData\Local\Temp\2024-05-22_4ca9f8f70849c8902ef42964b1ada4b6_stop.exe"

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 2888 -s 192

Network

N/A

Files

N/A

Analysis: behavioral2

Detonation Overview

Submitted

2024-05-22 12:33

Reported

2024-05-22 12:45

Platform

win10v2004-20240508-en

Max time kernel

149s

Max time network

157s

Command Line

"C:\Users\Admin\AppData\Local\Temp\2024-05-22_4ca9f8f70849c8902ef42964b1ada4b6_stop.exe"

Signatures

Processes

C:\Users\Admin\AppData\Local\Temp\2024-05-22_4ca9f8f70849c8902ef42964b1ada4b6_stop.exe

"C:\Users\Admin\AppData\Local\Temp\2024-05-22_4ca9f8f70849c8902ef42964b1ada4b6_stop.exe"

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 4300 -ip 4300

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 4300 -s 568

Network

Country Destination Domain Proto
US 8.8.8.8:53 8.8.8.8.in-addr.arpa udp
US 8.8.8.8:53 209.205.72.20.in-addr.arpa udp
US 8.8.8.8:53 99.56.20.217.in-addr.arpa udp
US 8.8.8.8:53 g.bing.com udp
US 204.79.197.237:443 g.bing.com tcp
NL 23.62.61.129:443 www.bing.com tcp
US 8.8.8.8:53 0.181.190.20.in-addr.arpa udp
US 8.8.8.8:53 237.197.79.204.in-addr.arpa udp
US 8.8.8.8:53 129.61.62.23.in-addr.arpa udp
US 8.8.8.8:53 43.58.199.20.in-addr.arpa udp
NL 23.62.61.160:443 www.bing.com tcp
US 8.8.8.8:53 241.150.49.20.in-addr.arpa udp
US 8.8.8.8:53 160.61.62.23.in-addr.arpa udp
US 8.8.8.8:53 228.249.119.40.in-addr.arpa udp
US 8.8.8.8:53 149.220.183.52.in-addr.arpa udp
US 8.8.8.8:53 183.59.114.20.in-addr.arpa udp
US 8.8.8.8:53 18.31.95.13.in-addr.arpa udp
US 8.8.8.8:53 82.90.14.23.in-addr.arpa udp
US 8.8.8.8:53 55.36.223.20.in-addr.arpa udp
US 8.8.8.8:53 43.229.111.52.in-addr.arpa udp
US 8.8.8.8:53 tse1.mm.bing.net udp
US 204.79.197.200:443 tse1.mm.bing.net tcp
US 204.79.197.200:443 tse1.mm.bing.net tcp
US 204.79.197.200:443 tse1.mm.bing.net tcp
US 204.79.197.200:443 tse1.mm.bing.net tcp
US 8.8.8.8:53 4.173.189.20.in-addr.arpa udp

Files

N/A