Malware Analysis Report

2025-01-18 16:00

Sample ID 240306-ja4nkafd69
Target b6daba03885861623fa7cf32b5921232
SHA256 73835b4466971e7802a1c8c5cd518c3c264c418ebd72ffb187fa7746f94d20de
Tags
dridex 22201 botnet loader
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

73835b4466971e7802a1c8c5cd518c3c264c418ebd72ffb187fa7746f94d20de

Threat Level: Known bad

The file b6daba03885861623fa7cf32b5921232 was found to be: Known bad.

Malicious Activity Summary

dridex 22201 botnet loader

Dridex

Dridex Loader

Program crash

Unsigned PE

Suspicious use of WriteProcessMemory

MITRE ATT&CK

N/A

Analysis: static1

Detonation Overview

Reported

2024-03-06 07:28

Signatures

Unsigned PE

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

Analysis: behavioral2

Detonation Overview

Submitted

2024-03-06 07:28

Reported

2024-03-06 07:31

Platform

win10v2004-20240226-en

Max time kernel

150s

Max time network

156s

Command Line

rundll32.exe C:\Users\Admin\AppData\Local\Temp\b6daba03885861623fa7cf32b5921232.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 1896 wrote to memory of 4444 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 1896 wrote to memory of 4444 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 1896 wrote to memory of 4444 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\b6daba03885861623fa7cf32b5921232.dll,#1

C:\Windows\SysWOW64\rundll32.exe

rundll32.exe C:\Users\Admin\AppData\Local\Temp\b6daba03885861623fa7cf32b5921232.dll,#1

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 428 -p 4444 -ip 4444

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 4444 -s 692

Network

Country Destination Domain Proto
US 8.8.8.8:53 14.160.190.20.in-addr.arpa udp
US 8.8.8.8:53 175.178.17.96.in-addr.arpa udp
US 8.8.8.8:53 104.219.191.52.in-addr.arpa udp
US 8.8.8.8:53 241.154.82.20.in-addr.arpa udp
US 8.8.8.8:53 41.110.16.96.in-addr.arpa udp
US 8.8.8.8:53 103.169.127.40.in-addr.arpa udp
US 8.8.8.8:53 18.31.95.13.in-addr.arpa udp
US 8.8.8.8:53 104.241.123.92.in-addr.arpa udp
US 8.8.8.8:53 183.142.211.20.in-addr.arpa udp
US 8.8.8.8:53 119.110.54.20.in-addr.arpa udp
US 8.8.8.8:53 196.249.167.52.in-addr.arpa udp
US 20.231.121.79:80 tcp
US 8.8.8.8:53 174.178.17.96.in-addr.arpa udp
US 8.8.8.8:53 217.135.221.88.in-addr.arpa udp
US 8.8.8.8:53 205.47.74.20.in-addr.arpa udp
US 8.8.8.8:53 176.178.17.96.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 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 18.134.221.88.in-addr.arpa udp
US 8.8.8.8:53 194.178.17.96.in-addr.arpa udp
US 8.8.8.8:53 173.178.17.96.in-addr.arpa udp
US 8.8.8.8:53 13.227.111.52.in-addr.arpa udp
US 8.8.8.8:53 178.178.17.96.in-addr.arpa udp
US 8.8.8.8:53 32.134.221.88.in-addr.arpa udp
US 8.8.8.8:53 198.187.3.20.in-addr.arpa udp
US 8.8.8.8:53 8.173.189.20.in-addr.arpa udp
GB 96.17.178.174:80 tcp

Files

memory/4444-0-0x0000000074A00000-0x0000000074A30000-memory.dmp

memory/4444-1-0x00000000007E0000-0x00000000007E6000-memory.dmp

Analysis: behavioral1

Detonation Overview

Submitted

2024-03-06 07:28

Reported

2024-03-06 07:31

Platform

win7-20240221-en

Max time kernel

141s

Max time network

122s

Command Line

rundll32.exe C:\Users\Admin\AppData\Local\Temp\b6daba03885861623fa7cf32b5921232.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\b6daba03885861623fa7cf32b5921232.dll,#1

C:\Windows\SysWOW64\rundll32.exe

rundll32.exe C:\Users\Admin\AppData\Local\Temp\b6daba03885861623fa7cf32b5921232.dll,#1

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 3020 -s 308

Network

N/A

Files

memory/3020-1-0x0000000074710000-0x0000000074740000-memory.dmp

memory/3020-0-0x0000000000120000-0x0000000000126000-memory.dmp