Malware Analysis Report

2025-01-18 15:58

Sample ID 240304-be2e1ade6s
Target b0d7ecf502625c6a27719ebb6b1b1a09
SHA256 6592f2469a2d7bbcdae6e06d67ae83f49443ba7fe9f864320da8a7305e022359
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

6592f2469a2d7bbcdae6e06d67ae83f49443ba7fe9f864320da8a7305e022359

Threat Level: Known bad

The file b0d7ecf502625c6a27719ebb6b1b1a09 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 01:04

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-03-04 01:04

Reported

2024-03-04 01:06

Platform

win7-20240221-en

Max time kernel

142s

Max time network

122s

Command Line

rundll32.exe C:\Users\Admin\AppData\Local\Temp\b0d7ecf502625c6a27719ebb6b1b1a09.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\b0d7ecf502625c6a27719ebb6b1b1a09.dll,#1

C:\Windows\SysWOW64\rundll32.exe

rundll32.exe C:\Users\Admin\AppData\Local\Temp\b0d7ecf502625c6a27719ebb6b1b1a09.dll,#1

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 2748 -s 308

Network

N/A

Files

memory/2748-0-0x0000000075390000-0x00000000753C0000-memory.dmp

memory/2748-1-0x00000000001A0000-0x00000000001A6000-memory.dmp

memory/2748-2-0x0000000075390000-0x00000000753C0000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-03-04 01:04

Reported

2024-03-04 01:06

Platform

win10v2004-20240226-en

Max time kernel

147s

Max time network

153s

Command Line

rundll32.exe C:\Users\Admin\AppData\Local\Temp\b0d7ecf502625c6a27719ebb6b1b1a09.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 3896 wrote to memory of 3812 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 3896 wrote to memory of 3812 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 3896 wrote to memory of 3812 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\b0d7ecf502625c6a27719ebb6b1b1a09.dll,#1

C:\Windows\SysWOW64\rundll32.exe

rundll32.exe C:\Users\Admin\AppData\Local\Temp\b0d7ecf502625c6a27719ebb6b1b1a09.dll,#1

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 412 -p 3812 -ip 3812

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 3812 -s 692

Network

Country Destination Domain Proto
US 8.8.8.8:53 2.159.190.20.in-addr.arpa udp
US 8.8.8.8:53 241.154.82.20.in-addr.arpa udp
US 8.8.8.8:53 240.221.184.93.in-addr.arpa udp
US 8.8.8.8:53 41.110.16.96.in-addr.arpa udp
US 8.8.8.8:53 183.59.114.20.in-addr.arpa udp
US 8.8.8.8:53 206.23.85.13.in-addr.arpa udp
US 8.8.8.8:53 217.135.221.88.in-addr.arpa udp
US 8.8.8.8:53 180.178.17.96.in-addr.arpa udp
US 8.8.8.8:53 85.65.42.20.in-addr.arpa udp

Files

memory/3812-0-0x0000000074BC0000-0x0000000074BF0000-memory.dmp

memory/3812-1-0x0000000002C40000-0x0000000002C46000-memory.dmp