Malware Analysis Report

2025-01-18 15:58

Sample ID 240304-jwf5dsdd8y
Target b19c45ee4711a610ca9e4c670f1f961b
SHA256 57153c0b7efd070f54fb53ac6a836edc9e6e9bfee6ab51e18270c5300f390d38
Tags
dridex 22201 botnet loader
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

57153c0b7efd070f54fb53ac6a836edc9e6e9bfee6ab51e18270c5300f390d38

Threat Level: Known bad

The file b19c45ee4711a610ca9e4c670f1f961b was found to be: Known bad.

Malicious Activity Summary

dridex 22201 botnet loader

Dridex

Dridex Loader

Unsigned PE

Program crash

Suspicious use of WriteProcessMemory

MITRE ATT&CK

N/A

Analysis: static1

Detonation Overview

Reported

2024-03-04 08:00

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-03-04 08:00

Reported

2024-03-04 08:03

Platform

win7-20240221-en

Max time kernel

141s

Max time network

122s

Command Line

rundll32.exe C:\Users\Admin\AppData\Local\Temp\b19c45ee4711a610ca9e4c670f1f961b.dll,#1

Signatures

Dridex

botnet dridex

Dridex Loader

botnet loader
Description Indicator Process Target
N/A N/A N/A N/A

Program crash

Description Indicator Process Target
N/A N/A C:\Windows\SysWOW64\WerFault.exe C:\Windows\SysWOW64\rundll32.exe

Processes

C:\Windows\system32\rundll32.exe

rundll32.exe C:\Users\Admin\AppData\Local\Temp\b19c45ee4711a610ca9e4c670f1f961b.dll,#1

C:\Windows\SysWOW64\rundll32.exe

rundll32.exe C:\Users\Admin\AppData\Local\Temp\b19c45ee4711a610ca9e4c670f1f961b.dll,#1

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 2204 -s 300

Network

N/A

Files

memory/2204-0-0x0000000075330000-0x0000000075360000-memory.dmp

memory/2204-1-0x0000000000190000-0x0000000000196000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-03-04 08:00

Reported

2024-03-04 08:03

Platform

win10v2004-20240226-en

Max time kernel

92s

Max time network

115s

Command Line

rundll32.exe C:\Users\Admin\AppData\Local\Temp\b19c45ee4711a610ca9e4c670f1f961b.dll,#1

Signatures

Dridex

botnet dridex

Dridex Loader

botnet loader
Description Indicator Process Target
N/A N/A N/A N/A

Program crash

Description Indicator Process Target
N/A N/A C:\Windows\SysWOW64\WerFault.exe C:\Windows\SysWOW64\rundll32.exe

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 3028 wrote to memory of 244 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 3028 wrote to memory of 244 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 3028 wrote to memory of 244 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\b19c45ee4711a610ca9e4c670f1f961b.dll,#1

C:\Windows\SysWOW64\rundll32.exe

rundll32.exe C:\Users\Admin\AppData\Local\Temp\b19c45ee4711a610ca9e4c670f1f961b.dll,#1

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 464 -p 244 -ip 244

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 244 -s 688

Network

Country Destination Domain Proto
US 8.8.8.8:53 g.bing.com udp
US 204.79.197.200:443 g.bing.com tcp
US 8.8.8.8:53 173.178.17.96.in-addr.arpa udp
US 8.8.8.8:53 241.154.82.20.in-addr.arpa udp
US 8.8.8.8:53 200.197.79.204.in-addr.arpa udp
US 8.8.8.8:53 26.35.223.20.in-addr.arpa udp
US 8.8.8.8:53 41.110.16.96.in-addr.arpa udp
US 8.8.8.8:53 26.165.165.52.in-addr.arpa udp
US 8.8.8.8:53 15.164.165.52.in-addr.arpa udp
US 8.8.8.8:53 163.143.109.104.in-addr.arpa udp
US 8.8.8.8:53 202.178.17.96.in-addr.arpa udp
IE 52.111.236.23:443 tcp
US 8.8.8.8:53 14.227.111.52.in-addr.arpa udp
US 8.8.8.8:53 175.178.17.96.in-addr.arpa udp

Files

memory/244-0-0x0000000075550000-0x0000000075580000-memory.dmp

memory/244-1-0x0000000000E70000-0x0000000000E76000-memory.dmp