Malware Analysis Report

2025-08-10 17:30

Sample ID 230923-k3jdrsga89
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 09:10

Platform

win7-20230831-en

Max time kernel

117s

Max time network

121s

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 2076 wrote to memory of 2880 N/A C:\Windows\system32\rundll32.exe C:\Windows\system32\WerFault.exe
PID 2076 wrote to memory of 2880 N/A C:\Windows\system32\rundll32.exe C:\Windows\system32\WerFault.exe
PID 2076 wrote to memory of 2880 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 2076 -s 56

Network

N/A

Files

N/A

Analysis: behavioral2

Detonation Overview

Submitted

2023-09-23 09:07

Reported

2023-09-23 09:10

Platform

win10v2004-20230915-en

Max time kernel

128s

Max time network

137s

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 8.3.197.209.in-addr.arpa udp
US 8.8.8.8:53 2.136.104.51.in-addr.arpa udp
US 8.8.8.8:53 20.160.190.20.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 26.35.223.20.in-addr.arpa udp
US 8.8.8.8:53 208.194.73.20.in-addr.arpa udp
US 8.8.8.8:53 183.59.114.20.in-addr.arpa udp
US 8.8.8.8:53 171.39.242.20.in-addr.arpa udp
US 8.8.8.8:53 254.210.247.8.in-addr.arpa udp
US 8.8.8.8:53 5.173.189.20.in-addr.arpa udp

Files

N/A