Malware Analysis Report

2025-08-10 22:18

Sample ID 210615-slma225kex
Target efe35e598ab3a917826801409b601a9407b4b50540c3303daf319e51b37b32d0
SHA256 efe35e598ab3a917826801409b601a9407b4b50540c3303daf319e51b37b32d0
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

efe35e598ab3a917826801409b601a9407b4b50540c3303daf319e51b37b32d0

Threat Level: Known bad

The file efe35e598ab3a917826801409b601a9407b4b50540c3303daf319e51b37b32d0 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 11:13

Signatures

N/A

Analysis: behavioral1

Detonation Overview

Submitted

2021-06-15 11:13

Reported

2021-06-15 11:16

Platform

win10v20210410

Max time kernel

19s

Max time network

112s

Command Line

rundll32.exe C:\Users\Admin\AppData\Local\Temp\efe35e598ab3a917826801409b601a9407b4b50540c3303daf319e51b37b32d0.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 1832 wrote to memory of 2856 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 1832 wrote to memory of 2856 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 1832 wrote to memory of 2856 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\efe35e598ab3a917826801409b601a9407b4b50540c3303daf319e51b37b32d0.dll,#1

C:\Windows\SysWOW64\rundll32.exe

rundll32.exe C:\Users\Admin\AppData\Local\Temp\efe35e598ab3a917826801409b601a9407b4b50540c3303daf319e51b37b32d0.dll,#1

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 2856 -s 684

Network

N/A

Files

memory/2856-114-0x0000000000000000-mapping.dmp

memory/2856-115-0x00000000741E0000-0x0000000074210000-memory.dmp

memory/2856-117-0x0000000003480000-0x00000000034A3000-memory.dmp