Malware Analysis Report

2025-01-18 16:27

Sample ID 210622-fdlttf2scj
Target 3617dac248e0783b259254812b9da7c2e0424e9b5b3f650a2adb4783fec79ddb
SHA256 3617dac248e0783b259254812b9da7c2e0424e9b5b3f650a2adb4783fec79ddb
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

3617dac248e0783b259254812b9da7c2e0424e9b5b3f650a2adb4783fec79ddb

Threat Level: Known bad

The file 3617dac248e0783b259254812b9da7c2e0424e9b5b3f650a2adb4783fec79ddb 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

2021-06-22 08:34

Signatures

N/A

Analysis: behavioral1

Detonation Overview

Submitted

2021-06-22 08:34

Reported

2021-06-22 08:37

Platform

win10v20210410

Max time kernel

19s

Max time network

115s

Command Line

rundll32.exe C:\Users\Admin\AppData\Local\Temp\3617dac248e0783b259254812b9da7c2e0424e9b5b3f650a2adb4783fec79ddb.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 3176 wrote to memory of 744 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 3176 wrote to memory of 744 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 3176 wrote to memory of 744 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\3617dac248e0783b259254812b9da7c2e0424e9b5b3f650a2adb4783fec79ddb.dll,#1

C:\Windows\SysWOW64\rundll32.exe

rundll32.exe C:\Users\Admin\AppData\Local\Temp\3617dac248e0783b259254812b9da7c2e0424e9b5b3f650a2adb4783fec79ddb.dll,#1

Network

N/A

Files

memory/744-114-0x0000000000000000-mapping.dmp

memory/744-115-0x0000000073BF0000-0x0000000073C1E000-memory.dmp

memory/744-117-0x0000000002F50000-0x0000000002FFE000-memory.dmp