Malware Analysis Report

2025-01-18 15:57

Sample ID 240306-cjpsfaga91
Target b63de6d168d4c13b9d2863bf24b37292
SHA256 6a5d76e6fcd0c0224297455bfba55aeeceaff76311aee739e6e5dd6c58a749a0
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

6a5d76e6fcd0c0224297455bfba55aeeceaff76311aee739e6e5dd6c58a749a0

Threat Level: Known bad

The file b63de6d168d4c13b9d2863bf24b37292 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

2024-03-06 02:06

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-03-06 02:06

Reported

2024-03-06 02:09

Platform

win7-20240221-en

Max time kernel

150s

Max time network

134s

Command Line

rundll32.exe C:\Users\Admin\AppData\Local\Temp\b63de6d168d4c13b9d2863bf24b37292.dll,#1

Signatures

Dridex

botnet dridex

Dridex Loader

botnet loader
Description Indicator Process Target
N/A N/A N/A N/A
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\b63de6d168d4c13b9d2863bf24b37292.dll,#1

C:\Windows\SysWOW64\rundll32.exe

rundll32.exe C:\Users\Admin\AppData\Local\Temp\b63de6d168d4c13b9d2863bf24b37292.dll,#1

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 2940 -s 308

Network

N/A

Files

memory/2940-1-0x0000000075310000-0x0000000075340000-memory.dmp

memory/2940-0-0x0000000000190000-0x0000000000196000-memory.dmp

memory/2940-2-0x0000000075310000-0x0000000075340000-memory.dmp

memory/2940-4-0x0000000000190000-0x0000000000196000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-03-06 02:06

Reported

2024-03-06 02:09

Platform

win10v2004-20240226-en

Max time kernel

163s

Max time network

178s

Command Line

rundll32.exe C:\Users\Admin\AppData\Local\Temp\b63de6d168d4c13b9d2863bf24b37292.dll,#1

Signatures

Dridex

botnet dridex

Dridex Loader

botnet loader
Description Indicator Process Target
N/A N/A N/A N/A
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 4524 wrote to memory of 2168 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 4524 wrote to memory of 2168 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 4524 wrote to memory of 2168 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\b63de6d168d4c13b9d2863bf24b37292.dll,#1

C:\Windows\SysWOW64\rundll32.exe

rundll32.exe C:\Users\Admin\AppData\Local\Temp\b63de6d168d4c13b9d2863bf24b37292.dll,#1

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 456 -p 2168 -ip 2168

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 2168 -s 692

Network

Country Destination Domain Proto
US 8.8.8.8:53 194.178.17.96.in-addr.arpa udp
US 8.8.8.8:53 241.150.49.20.in-addr.arpa udp
US 8.8.8.8:53 22.160.190.20.in-addr.arpa udp
US 8.8.8.8:53 241.154.82.20.in-addr.arpa udp
US 8.8.8.8:53 157.123.68.40.in-addr.arpa udp
US 8.8.8.8:53 171.39.242.20.in-addr.arpa udp
US 8.8.8.8:53 41.110.16.96.in-addr.arpa udp
US 8.8.8.8:53 13.86.106.20.in-addr.arpa udp
US 8.8.8.8:53 55.36.223.20.in-addr.arpa udp
US 8.8.8.8:53 217.135.221.88.in-addr.arpa udp
US 8.8.8.8:53 104.219.191.52.in-addr.arpa udp
US 8.8.8.8:53 198.187.3.20.in-addr.arpa udp
US 8.8.8.8:53 228.249.119.40.in-addr.arpa udp
US 8.8.8.8:53 173.178.17.96.in-addr.arpa udp
US 8.8.8.8:53 11.227.111.52.in-addr.arpa udp
US 8.8.8.8:53 180.178.17.96.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 8.8.8.8:53 200.197.79.204.in-addr.arpa udp
US 8.8.8.8:53 26.178.89.13.in-addr.arpa udp

Files

memory/2168-0-0x00000000749E0000-0x0000000074A10000-memory.dmp

memory/2168-2-0x0000000002420000-0x0000000002426000-memory.dmp

memory/2168-3-0x00000000749E0000-0x0000000074A10000-memory.dmp