Malware Analysis Report

2024-12-08 02:30

Sample ID 230724-lf5h6acf3s
Target fc808ff7b3501970102a2126e5bf50ea7a23c64da9e175d76fc52e99a57239bb
SHA256 fc808ff7b3501970102a2126e5bf50ea7a23c64da9e175d76fc52e99a57239bb
Tags
r77
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

fc808ff7b3501970102a2126e5bf50ea7a23c64da9e175d76fc52e99a57239bb

Threat Level: Known bad

The file fc808ff7b3501970102a2126e5bf50ea7a23c64da9e175d76fc52e99a57239bb was found to be: Known bad.

Malicious Activity Summary

r77

R77 family

r77 rootkit payload

Unsigned PE

Program crash

Suspicious use of WriteProcessMemory

MITRE ATT&CK

N/A

Analysis: static1

Detonation Overview

Reported

2023-07-24 09:29

Signatures

R77 family

r77

r77 rootkit payload

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

2023-07-24 09:29

Reported

2023-07-24 09:32

Platform

win7-20230712-en

Max time kernel

121s

Max time network

125s

Command Line

"C:\Users\Admin\AppData\Local\Temp\fc808ff7b3501970102a2126e5bf50ea7a23c64da9e175d76fc52e99a57239bb.exe"

Signatures

Processes

C:\Users\Admin\AppData\Local\Temp\fc808ff7b3501970102a2126e5bf50ea7a23c64da9e175d76fc52e99a57239bb.exe

"C:\Users\Admin\AppData\Local\Temp\fc808ff7b3501970102a2126e5bf50ea7a23c64da9e175d76fc52e99a57239bb.exe"

C:\Windows\system32\WerFault.exe

C:\Windows\system32\WerFault.exe -u -p 2240 -s 144

Network

N/A

Files

N/A

Analysis: behavioral2

Detonation Overview

Submitted

2023-07-24 09:29

Reported

2023-07-24 09:32

Platform

win10v2004-20230703-en

Max time kernel

143s

Max time network

149s

Command Line

"C:\Users\Admin\AppData\Local\Temp\fc808ff7b3501970102a2126e5bf50ea7a23c64da9e175d76fc52e99a57239bb.exe"

Signatures

Processes

C:\Users\Admin\AppData\Local\Temp\fc808ff7b3501970102a2126e5bf50ea7a23c64da9e175d76fc52e99a57239bb.exe

"C:\Users\Admin\AppData\Local\Temp\fc808ff7b3501970102a2126e5bf50ea7a23c64da9e175d76fc52e99a57239bb.exe"

C:\Windows\system32\WerFault.exe

C:\Windows\system32\WerFault.exe -pss -s 420 -p 3780 -ip 3780

C:\Windows\system32\WerFault.exe

C:\Windows\system32\WerFault.exe -u -p 3780 -s 400

Network

Country Destination Domain Proto
US 8.8.8.8:53 59.128.231.4.in-addr.arpa udp
US 8.8.8.8:53 75.159.190.20.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 55.36.223.20.in-addr.arpa udp
US 8.8.8.8:53 146.78.124.51.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 8.8.8.8:53 160.252.72.23.in-addr.arpa udp
US 8.8.8.8:53 126.23.238.8.in-addr.arpa udp
US 8.8.8.8:53 45.8.109.52.in-addr.arpa udp
US 8.8.8.8:53 90.16.208.104.in-addr.arpa udp

Files

N/A