Malware Analysis Report

2025-08-05 16:35

Sample ID 210615-yhp1x3ld3j
Target b5714bcca34cedf65b05c46d7b7bf3647d677328ff2b0fb19a5a47888957c479
SHA256 b5714bcca34cedf65b05c46d7b7bf3647d677328ff2b0fb19a5a47888957c479
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

b5714bcca34cedf65b05c46d7b7bf3647d677328ff2b0fb19a5a47888957c479

Threat Level: Known bad

The file b5714bcca34cedf65b05c46d7b7bf3647d677328ff2b0fb19a5a47888957c479 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 15:46

Signatures

N/A

Analysis: behavioral1

Detonation Overview

Submitted

2021-06-15 15:46

Reported

2021-06-15 15:48

Platform

win10v20210408

Max time kernel

26s

Max time network

89s

Command Line

rundll32.exe C:\Users\Admin\AppData\Local\Temp\b5714bcca34cedf65b05c46d7b7bf3647d677328ff2b0fb19a5a47888957c479.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 740 wrote to memory of 1028 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 740 wrote to memory of 1028 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 740 wrote to memory of 1028 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\b5714bcca34cedf65b05c46d7b7bf3647d677328ff2b0fb19a5a47888957c479.dll,#1

C:\Windows\SysWOW64\rundll32.exe

rundll32.exe C:\Users\Admin\AppData\Local\Temp\b5714bcca34cedf65b05c46d7b7bf3647d677328ff2b0fb19a5a47888957c479.dll,#1

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 1028 -s 680

Network

N/A

Files

memory/1028-114-0x0000000000000000-mapping.dmp

memory/1028-115-0x0000000074350000-0x0000000074380000-memory.dmp

memory/1028-117-0x0000000000CB0000-0x0000000000CB6000-memory.dmp