Malware Analysis Report

2024-10-19 10:23

Sample ID 210629-w7yfczee2x
Target 1f835d0d9eeb88f25d8d87d00bf6c0afe0d3a99189d8b53c1f78afdde2e00301
SHA256 1f835d0d9eeb88f25d8d87d00bf6c0afe0d3a99189d8b53c1f78afdde2e00301
Tags
dridex 40112 botnet evasion loader trojan
score
10/10

Table of Contents

Analysis Overview

MITRE ATT&CK

Enterprise Matrix V6

Analysis: static1

Detonation Overview

Signatures

Analysis: behavioral1

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis Overview

score
10/10

SHA256

1f835d0d9eeb88f25d8d87d00bf6c0afe0d3a99189d8b53c1f78afdde2e00301

Threat Level: Known bad

The file 1f835d0d9eeb88f25d8d87d00bf6c0afe0d3a99189d8b53c1f78afdde2e00301 was found to be: Known bad.

Malicious Activity Summary

dridex 40112 botnet evasion loader trojan

Dridex

Dridex Loader

Checks whether UAC is enabled

Suspicious use of WriteProcessMemory

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2021-06-29 07:38

Signatures

N/A

Analysis: behavioral1

Detonation Overview

Submitted

2021-06-29 07:38

Reported

2021-06-29 07:40

Platform

win10v20210410

Max time kernel

19s

Max time network

124s

Command Line

rundll32.exe C:\Users\Admin\AppData\Local\Temp\1f835d0d9eeb88f25d8d87d00bf6c0afe0d3a99189d8b53c1f78afdde2e00301.dll,#1

Signatures

Dridex

botnet dridex

Dridex Loader

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

Checks whether UAC is enabled

evasion trojan
Description Indicator Process Target
Key value queried \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA C:\Windows\SysWOW64\rundll32.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 4444 wrote to memory of 4460 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 4444 wrote to memory of 4460 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 4444 wrote to memory of 4460 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\1f835d0d9eeb88f25d8d87d00bf6c0afe0d3a99189d8b53c1f78afdde2e00301.dll,#1

C:\Windows\SysWOW64\rundll32.exe

rundll32.exe C:\Users\Admin\AppData\Local\Temp\1f835d0d9eeb88f25d8d87d00bf6c0afe0d3a99189d8b53c1f78afdde2e00301.dll,#1

Network

N/A

Files

memory/4460-114-0x0000000000000000-mapping.dmp

memory/4460-115-0x0000000073820000-0x000000007384D000-memory.dmp

memory/4460-117-0x00000000005F0000-0x00000000005F6000-memory.dmp