Malware Analysis Report

2025-08-10 22:16

Sample ID 210615-hzp58n9eb2
Target acbbe33c1a15f803f2ba6262b76e57cd5bb0fe8e210eeaf1b1b492b78deedb83
SHA256 acbbe33c1a15f803f2ba6262b76e57cd5bb0fe8e210eeaf1b1b492b78deedb83
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

acbbe33c1a15f803f2ba6262b76e57cd5bb0fe8e210eeaf1b1b492b78deedb83

Threat Level: Known bad

The file acbbe33c1a15f803f2ba6262b76e57cd5bb0fe8e210eeaf1b1b492b78deedb83 was found to be: Known bad.

Malicious Activity Summary

dridex 40112 botnet loader

Dridex

Dridex Loader

Program crash

Suspicious use of AdjustPrivilegeToken

Suspicious use of WriteProcessMemory

Suspicious behavior: EnumeratesProcesses

MITRE ATT&CK

N/A

Analysis: static1

Detonation Overview

Reported

2021-06-15 12:05

Signatures

N/A

Analysis: behavioral1

Detonation Overview

Submitted

2021-06-15 12:05

Reported

2021-06-15 12:07

Platform

win10v20210410

Max time kernel

19s

Max time network

152s

Command Line

rundll32.exe C:\Users\Admin\AppData\Local\Temp\acbbe33c1a15f803f2ba6262b76e57cd5bb0fe8e210eeaf1b1b492b78deedb83.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 500 wrote to memory of 3128 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 500 wrote to memory of 3128 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 500 wrote to memory of 3128 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\acbbe33c1a15f803f2ba6262b76e57cd5bb0fe8e210eeaf1b1b492b78deedb83.dll,#1

C:\Windows\SysWOW64\rundll32.exe

rundll32.exe C:\Users\Admin\AppData\Local\Temp\acbbe33c1a15f803f2ba6262b76e57cd5bb0fe8e210eeaf1b1b492b78deedb83.dll,#1

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 3128 -s 680

Network

N/A

Files

memory/3128-114-0x0000000000000000-mapping.dmp

memory/3128-115-0x0000000074300000-0x0000000074330000-memory.dmp

memory/3128-117-0x0000000002A00000-0x0000000002B4A000-memory.dmp