Malware Analysis Report

2025-08-05 12:24

Sample ID 230923-z3pccaad91
Target 4756-399-0x0000000002AA0000-0x0000000002BD1000-memory.dmp
SHA256 0a487978ddbed0db7c7e293ea2936b97a2fcb331863b71c60de9cec76598b2c1
Tags
fabookie
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

0a487978ddbed0db7c7e293ea2936b97a2fcb331863b71c60de9cec76598b2c1

Threat Level: Known bad

The file 4756-399-0x0000000002AA0000-0x0000000002BD1000-memory.dmp was found to be: Known bad.

Malicious Activity Summary

fabookie

Fabookie family

Detect Fabookie payload

Unsigned PE

Suspicious use of WriteProcessMemory

MITRE ATT&CK

N/A

Analysis: static1

Detonation Overview

Reported

2023-09-23 21:14

Signatures

Detect Fabookie payload

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

Fabookie family

fabookie

Unsigned PE

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

Analysis: behavioral2

Detonation Overview

Submitted

2023-09-23 21:14

Reported

2023-09-23 21:17

Platform

win10v2004-20230915-en

Max time kernel

147s

Max time network

151s

Command Line

rundll32.exe C:\Users\Admin\AppData\Local\Temp\4756-399-0x0000000002AA0000-0x0000000002BD1000-memory.dll,#1

Signatures

N/A

Processes

C:\Windows\system32\rundll32.exe

rundll32.exe C:\Users\Admin\AppData\Local\Temp\4756-399-0x0000000002AA0000-0x0000000002BD1000-memory.dll,#1

Network

Country Destination Domain Proto
US 8.8.8.8:53 17.160.190.20.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 158.240.127.40.in-addr.arpa udp
US 8.8.8.8:53 9.228.82.20.in-addr.arpa udp
US 8.8.8.8:53 43.58.199.20.in-addr.arpa udp
US 8.8.8.8:53 126.178.238.8.in-addr.arpa udp
US 8.8.8.8:53 198.1.85.104.in-addr.arpa udp
US 8.8.8.8:53 146.78.124.51.in-addr.arpa udp
US 8.8.8.8:53 157.123.68.40.in-addr.arpa udp
US 8.8.8.8:53 198.187.3.20.in-addr.arpa udp
US 8.8.8.8:53 8.3.197.209.in-addr.arpa udp
US 8.8.8.8:53 13.173.189.20.in-addr.arpa udp

Files

N/A

Analysis: behavioral1

Detonation Overview

Submitted

2023-09-23 21:14

Reported

2023-09-23 21:17

Platform

win7-20230831-en

Max time kernel

122s

Max time network

126s

Command Line

rundll32.exe C:\Users\Admin\AppData\Local\Temp\4756-399-0x0000000002AA0000-0x0000000002BD1000-memory.dll,#1

Signatures

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 1728 wrote to memory of 2176 N/A C:\Windows\system32\rundll32.exe C:\Windows\system32\WerFault.exe
PID 1728 wrote to memory of 2176 N/A C:\Windows\system32\rundll32.exe C:\Windows\system32\WerFault.exe
PID 1728 wrote to memory of 2176 N/A C:\Windows\system32\rundll32.exe C:\Windows\system32\WerFault.exe

Processes

C:\Windows\system32\rundll32.exe

rundll32.exe C:\Users\Admin\AppData\Local\Temp\4756-399-0x0000000002AA0000-0x0000000002BD1000-memory.dll,#1

C:\Windows\system32\WerFault.exe

C:\Windows\system32\WerFault.exe -u -p 1728 -s 56

Network

N/A

Files

N/A