Malware Analysis Report

2025-08-10 17:29

Sample ID 230923-k3fymsga88
Target 1436-91-0x0000000003350000-0x0000000003481000-memory.dmp
SHA256 76bb92e38f04a66cf4757740b86bd71d3e2dbb3dcc0eb453d18e87039e84115c
Tags
fabookie
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

76bb92e38f04a66cf4757740b86bd71d3e2dbb3dcc0eb453d18e87039e84115c

Threat Level: Known bad

The file 1436-91-0x0000000003350000-0x0000000003481000-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 09:07

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: behavioral1

Detonation Overview

Submitted

2023-09-23 09:07

Reported

2023-09-23 09:09

Platform

win7-20230831-en

Max time kernel

119s

Max time network

123s

Command Line

rundll32.exe C:\Users\Admin\AppData\Local\Temp\1436-91-0x0000000003350000-0x0000000003481000-memory.dll,#1

Signatures

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 2140 wrote to memory of 3036 N/A C:\Windows\system32\rundll32.exe C:\Windows\system32\WerFault.exe
PID 2140 wrote to memory of 3036 N/A C:\Windows\system32\rundll32.exe C:\Windows\system32\WerFault.exe
PID 2140 wrote to memory of 3036 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\1436-91-0x0000000003350000-0x0000000003481000-memory.dll,#1

C:\Windows\system32\WerFault.exe

C:\Windows\system32\WerFault.exe -u -p 2140 -s 56

Network

N/A

Files

N/A

Analysis: behavioral2

Detonation Overview

Submitted

2023-09-23 09:07

Reported

2023-09-23 09:09

Platform

win10v2004-20230915-en

Max time kernel

146s

Max time network

151s

Command Line

rundll32.exe C:\Users\Admin\AppData\Local\Temp\1436-91-0x0000000003350000-0x0000000003481000-memory.dll,#1

Signatures

N/A

Processes

C:\Windows\system32\rundll32.exe

rundll32.exe C:\Users\Admin\AppData\Local\Temp\1436-91-0x0000000003350000-0x0000000003481000-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 59.128.231.4.in-addr.arpa udp
US 8.8.8.8:53 68.159.190.20.in-addr.arpa udp
US 8.8.8.8:53 126.179.238.8.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 g.bing.com udp
US 204.79.197.200:443 g.bing.com tcp
US 8.8.8.8:53 9.228.82.20.in-addr.arpa udp
US 8.8.8.8:53 39.142.81.104.in-addr.arpa udp
US 8.8.8.8:53 241.154.82.20.in-addr.arpa udp
US 8.8.8.8:53 158.240.127.40.in-addr.arpa udp
US 8.8.8.8:53 146.78.124.51.in-addr.arpa udp
US 8.8.8.8:53 26.165.165.52.in-addr.arpa udp
US 8.8.8.8:53 56.126.166.20.in-addr.arpa udp
US 8.8.8.8:53 16.173.189.20.in-addr.arpa udp

Files

N/A