Malware Analysis Report

2025-01-02 06:56

Sample ID 230411-mx5qxsdf5x
Target f002baac9c55ec2edb4afb9f1236cf3271810998c8d80e013b3709180906de56
SHA256 f002baac9c55ec2edb4afb9f1236cf3271810998c8d80e013b3709180906de56
Tags
r77
score
10/10

Table of Contents

Analysis Overview

MITRE ATT&CK

Analysis: static1

Detonation Overview

Signatures

Analysis: behavioral2

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis: behavioral1

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis Overview

score
10/10

SHA256

f002baac9c55ec2edb4afb9f1236cf3271810998c8d80e013b3709180906de56

Threat Level: Known bad

The file f002baac9c55ec2edb4afb9f1236cf3271810998c8d80e013b3709180906de56 was found to be: Known bad.

Malicious Activity Summary

r77

R77 family

r77 rootkit payload

Program crash

Suspicious use of WriteProcessMemory

MITRE ATT&CK

N/A

Analysis: static1

Detonation Overview

Reported

2023-04-11 10:51

Signatures

R77 family

r77

r77 rootkit payload

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

Analysis: behavioral2

Detonation Overview

Submitted

2023-04-11 10:51

Reported

2023-04-11 10:54

Platform

win10v2004-20230221-en

Max time kernel

93s

Max time network

115s

Command Line

"C:\Users\Admin\AppData\Local\Temp\f002baac9c55ec2edb4afb9f1236cf3271810998c8d80e013b3709180906de56.exe"

Signatures

Processes

C:\Users\Admin\AppData\Local\Temp\f002baac9c55ec2edb4afb9f1236cf3271810998c8d80e013b3709180906de56.exe

"C:\Users\Admin\AppData\Local\Temp\f002baac9c55ec2edb4afb9f1236cf3271810998c8d80e013b3709180906de56.exe"

C:\Windows\system32\WerFault.exe

C:\Windows\system32\WerFault.exe -pss -s 408 -p 4824 -ip 4824

C:\Windows\system32\WerFault.exe

C:\Windows\system32\WerFault.exe -u -p 4824 -s 392

Network

Country Destination Domain Proto
US 8.8.8.8:53 232.168.11.51.in-addr.arpa udp
US 8.8.8.8:53 126.151.241.8.in-addr.arpa udp
US 8.8.8.8:53 14.160.190.20.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 154.239.44.20.in-addr.arpa udp
US 8.8.8.8:53 104.219.191.52.in-addr.arpa udp
SG 8.241.167.254:80 tcp
US 8.8.8.8:53 26.165.165.52.in-addr.arpa udp
US 8.8.8.8:53 56.126.166.20.in-addr.arpa udp
US 20.189.173.6:443 tcp
SG 8.241.167.254:80 tcp
US 8.8.8.8:53 126.24.238.8.in-addr.arpa udp

Files

N/A

Analysis: behavioral1

Detonation Overview

Submitted

2023-04-11 10:51

Reported

2023-04-11 10:54

Platform

win7-20230220-en

Max time kernel

31s

Max time network

33s

Command Line

"C:\Users\Admin\AppData\Local\Temp\f002baac9c55ec2edb4afb9f1236cf3271810998c8d80e013b3709180906de56.exe"

Signatures

Processes

C:\Users\Admin\AppData\Local\Temp\f002baac9c55ec2edb4afb9f1236cf3271810998c8d80e013b3709180906de56.exe

"C:\Users\Admin\AppData\Local\Temp\f002baac9c55ec2edb4afb9f1236cf3271810998c8d80e013b3709180906de56.exe"

C:\Windows\system32\WerFault.exe

C:\Windows\system32\WerFault.exe -u -p 1644 -s 144

Network

N/A

Files

N/A