Malware Analysis Report

2025-08-05 16:34

Sample ID 210615-2lkkm7a5ya
Target 86636904b19483397b3cc804a50d4327a918f30ae2a52041e5befd051c5f452d
SHA256 86636904b19483397b3cc804a50d4327a918f30ae2a52041e5befd051c5f452d
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

86636904b19483397b3cc804a50d4327a918f30ae2a52041e5befd051c5f452d

Threat Level: Known bad

The file 86636904b19483397b3cc804a50d4327a918f30ae2a52041e5befd051c5f452d 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 16:17

Signatures

N/A

Analysis: behavioral1

Detonation Overview

Submitted

2021-06-15 16:17

Reported

2021-06-15 16:20

Platform

win10v20210408

Max time kernel

25s

Max time network

119s

Command Line

rundll32.exe C:\Users\Admin\AppData\Local\Temp\86636904b19483397b3cc804a50d4327a918f30ae2a52041e5befd051c5f452d.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 672 wrote to memory of 1312 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 672 wrote to memory of 1312 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 672 wrote to memory of 1312 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\86636904b19483397b3cc804a50d4327a918f30ae2a52041e5befd051c5f452d.dll,#1

C:\Windows\SysWOW64\rundll32.exe

rundll32.exe C:\Users\Admin\AppData\Local\Temp\86636904b19483397b3cc804a50d4327a918f30ae2a52041e5befd051c5f452d.dll,#1

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 1312 -s 684

Network

N/A

Files

memory/1312-114-0x0000000000000000-mapping.dmp

memory/1312-115-0x00000000742C0000-0x00000000742F0000-memory.dmp

memory/1312-117-0x00000000033F0000-0x0000000003413000-memory.dmp