Malware Analysis Report

2025-08-05 16:34

Sample ID 210615-b2n42m1se2
Target bf68968595bcfb9c87eac5086809e6477cc1b4ede2dba7a816ed2663817c1579
SHA256 bf68968595bcfb9c87eac5086809e6477cc1b4ede2dba7a816ed2663817c1579
Tags
dridex 40112 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 Overview

score
10/10

SHA256

bf68968595bcfb9c87eac5086809e6477cc1b4ede2dba7a816ed2663817c1579

Threat Level: Known bad

The file bf68968595bcfb9c87eac5086809e6477cc1b4ede2dba7a816ed2663817c1579 was found to be: Known bad.

Malicious Activity Summary

dridex 40112 botnet loader

Dridex

Dridex Loader

Program crash

Suspicious use of WriteProcessMemory

Suspicious behavior: EnumeratesProcesses

Suspicious use of AdjustPrivilegeToken

MITRE ATT&CK

N/A

Analysis: static1

Detonation Overview

Reported

2021-06-15 15:36

Signatures

N/A

Analysis: behavioral1

Detonation Overview

Submitted

2021-06-15 15:36

Reported

2021-06-15 15:38

Platform

win10v20210408

Max time kernel

27s

Max time network

112s

Command Line

rundll32.exe C:\Users\Admin\AppData\Local\Temp\bf68968595bcfb9c87eac5086809e6477cc1b4ede2dba7a816ed2663817c1579.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 AdjustPrivilegeToken

Description Indicator Process Target
Token: SeRestorePrivilege N/A C:\Windows\SysWOW64\WerFault.exe N/A
Token: SeBackupPrivilege N/A C:\Windows\SysWOW64\WerFault.exe N/A
Token: SeDebugPrivilege N/A C:\Windows\SysWOW64\WerFault.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 4804 wrote to memory of 4872 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 4804 wrote to memory of 4872 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 4804 wrote to memory of 4872 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\bf68968595bcfb9c87eac5086809e6477cc1b4ede2dba7a816ed2663817c1579.dll,#1

C:\Windows\SysWOW64\rundll32.exe

rundll32.exe C:\Users\Admin\AppData\Local\Temp\bf68968595bcfb9c87eac5086809e6477cc1b4ede2dba7a816ed2663817c1579.dll,#1

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 4872 -s 680

Network

N/A

Files

memory/4872-114-0x0000000000000000-mapping.dmp

memory/4872-115-0x0000000073880000-0x00000000738B0000-memory.dmp

memory/4872-117-0x0000000002BF0000-0x0000000002BF6000-memory.dmp