Malware Analysis Report

2025-08-05 16:34

Sample ID 210615-d9961vrl8a
Target 2a760c8522ca2dd2a7017b0308d4dc2d4876728a66fa44674304f06c4741dd82
SHA256 2a760c8522ca2dd2a7017b0308d4dc2d4876728a66fa44674304f06c4741dd82
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

2a760c8522ca2dd2a7017b0308d4dc2d4876728a66fa44674304f06c4741dd82

Threat Level: Known bad

The file 2a760c8522ca2dd2a7017b0308d4dc2d4876728a66fa44674304f06c4741dd82 was found to be: Known bad.

Malicious Activity Summary

dridex 40112 botnet loader

Dridex

Dridex Loader

Program crash

Suspicious behavior: EnumeratesProcesses

Suspicious use of AdjustPrivilegeToken

Suspicious use of WriteProcessMemory

MITRE ATT&CK

N/A

Analysis: static1

Detonation Overview

Reported

2021-06-15 15:27

Signatures

N/A

Analysis: behavioral1

Detonation Overview

Submitted

2021-06-15 15:27

Reported

2021-06-15 15:30

Platform

win10v20210408

Max time kernel

24s

Max time network

114s

Command Line

rundll32.exe C:\Users\Admin\AppData\Local\Temp\2a760c8522ca2dd2a7017b0308d4dc2d4876728a66fa44674304f06c4741dd82.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 1040 wrote to memory of 1584 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 1040 wrote to memory of 1584 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 1040 wrote to memory of 1584 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\2a760c8522ca2dd2a7017b0308d4dc2d4876728a66fa44674304f06c4741dd82.dll,#1

C:\Windows\SysWOW64\rundll32.exe

rundll32.exe C:\Users\Admin\AppData\Local\Temp\2a760c8522ca2dd2a7017b0308d4dc2d4876728a66fa44674304f06c4741dd82.dll,#1

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 1584 -s 680

Network

N/A

Files

memory/1584-114-0x0000000000000000-mapping.dmp

memory/1584-115-0x0000000073F50000-0x0000000073F80000-memory.dmp

memory/1584-117-0x0000000004A80000-0x0000000004AA3000-memory.dmp