Malware Analysis Report

2024-10-19 10:14

Sample ID 240121-f6dv8sffe9
Target 2320-2-0x0000000002350000-0x0000000002448000-memory.dmp
SHA256 f40b26f6ee72d7b85debfdfe79392e95487c6aca9eb850ac5c94e0a94fdadea5
Tags
10444 dridex
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

f40b26f6ee72d7b85debfdfe79392e95487c6aca9eb850ac5c94e0a94fdadea5

Threat Level: Known bad

The file 2320-2-0x0000000002350000-0x0000000002448000-memory.dmp was found to be: Known bad.

Malicious Activity Summary

10444 dridex

Dridex family

Unsigned PE

Program crash

Suspicious use of WriteProcessMemory

MITRE ATT&CK

N/A

Analysis: static1

Detonation Overview

Reported

2024-01-21 05:28

Signatures

Dridex family

dridex

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-01-21 05:28

Reported

2024-01-21 05:31

Platform

win7-20231215-en

Max time kernel

122s

Max time network

138s

Command Line

rundll32.exe C:\Users\Admin\AppData\Local\Temp\2320-2-0x0000000002350000-0x0000000002448000-memory.dll,#1

Signatures

Processes

C:\Windows\system32\rundll32.exe

rundll32.exe C:\Users\Admin\AppData\Local\Temp\2320-2-0x0000000002350000-0x0000000002448000-memory.dll,#1

C:\Windows\SysWOW64\rundll32.exe

rundll32.exe C:\Users\Admin\AppData\Local\Temp\2320-2-0x0000000002350000-0x0000000002448000-memory.dll,#1

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 2504 -s 196

Network

N/A

Files

N/A

Analysis: behavioral2

Detonation Overview

Submitted

2024-01-21 05:28

Reported

2024-01-21 05:31

Platform

win10v2004-20231215-en

Max time kernel

150s

Max time network

160s

Command Line

rundll32.exe C:\Users\Admin\AppData\Local\Temp\2320-2-0x0000000002350000-0x0000000002448000-memory.dll,#1

Signatures

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 4740 wrote to memory of 3204 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 4740 wrote to memory of 3204 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 4740 wrote to memory of 3204 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe

Processes

C:\Windows\system32\rundll32.exe

rundll32.exe C:\Users\Admin\AppData\Local\Temp\2320-2-0x0000000002350000-0x0000000002448000-memory.dll,#1

C:\Windows\SysWOW64\rundll32.exe

rundll32.exe C:\Users\Admin\AppData\Local\Temp\2320-2-0x0000000002350000-0x0000000002448000-memory.dll,#1

Network

Country Destination Domain Proto
US 8.8.8.8:53 81.171.91.138.in-addr.arpa udp
US 138.91.171.81:80 tcp
US 8.8.8.8:53 241.150.49.20.in-addr.arpa udp
US 8.8.8.8:53 240.221.184.93.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 97.17.167.52.in-addr.arpa udp
US 8.8.8.8:53 183.59.114.20.in-addr.arpa udp
US 8.8.8.8:53 18.31.95.13.in-addr.arpa udp
US 8.8.8.8:53 194.178.17.96.in-addr.arpa udp
US 8.8.8.8:53 13.227.111.52.in-addr.arpa udp
US 8.8.8.8:53 209.178.17.96.in-addr.arpa udp
US 8.8.8.8:53 79.121.231.20.in-addr.arpa udp
US 8.8.8.8:53 25.73.42.20.in-addr.arpa udp
GB 96.16.110.114:80 tcp

Files

N/A