Malware Analysis Report

2025-08-05 12:24

Sample ID 230923-z2yjmaad9x
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

Detect Fabookie payload

Fabookie family

Unsigned PE

Suspicious use of WriteProcessMemory

MITRE ATT&CK

N/A

Analysis: static1

Detonation Overview

Reported

2023-09-23 21:13

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 21:13

Reported

2023-09-23 21:16

Platform

win10v2004-20230915-en

Max time kernel

150s

Max time network

155s

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 8.8.8.8.in-addr.arpa udp
US 8.8.8.8:53 208.194.73.20.in-addr.arpa udp
US 8.8.8.8:53 121.252.72.23.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 59.128.231.4.in-addr.arpa udp
US 8.8.8.8:53 86.23.85.13.in-addr.arpa udp
US 8.8.8.8:53 15.164.165.52.in-addr.arpa udp
US 8.8.8.8:53 254.23.238.8.in-addr.arpa udp
US 8.8.8.8:53 120.150.79.40.in-addr.arpa udp
US 8.8.8.8:53 146.78.124.51.in-addr.arpa udp
US 8.8.8.8:53 126.210.247.8.in-addr.arpa udp
US 8.8.8.8:53 17.160.190.20.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 8.8.8.8:53 38.148.119.40.in-addr.arpa udp

Files

N/A

Analysis: behavioral1

Detonation Overview

Submitted

2023-09-23 21:13

Reported

2023-09-23 21:16

Platform

win7-20230831-en

Max time kernel

120s

Max time network

123s

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 2336 wrote to memory of 2348 N/A C:\Windows\system32\rundll32.exe C:\Windows\system32\WerFault.exe
PID 2336 wrote to memory of 2348 N/A C:\Windows\system32\rundll32.exe C:\Windows\system32\WerFault.exe
PID 2336 wrote to memory of 2348 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 2336 -s 56

Network

N/A

Files

N/A