Malware Analysis Report

2025-08-10 22:18

Sample ID 210615-p1terxbvj2
Target 812dfe31a6e61ebaa7c50de0495c4a494c1606d3b510d15e9cb427813617cc59
SHA256 812dfe31a6e61ebaa7c50de0495c4a494c1606d3b510d15e9cb427813617cc59
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

812dfe31a6e61ebaa7c50de0495c4a494c1606d3b510d15e9cb427813617cc59

Threat Level: Known bad

The file 812dfe31a6e61ebaa7c50de0495c4a494c1606d3b510d15e9cb427813617cc59 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 11:09

Signatures

N/A

Analysis: behavioral1

Detonation Overview

Submitted

2021-06-15 11:09

Reported

2021-06-15 11:12

Platform

win10v20210408

Max time kernel

25s

Max time network

87s

Command Line

rundll32.exe C:\Users\Admin\AppData\Local\Temp\812dfe31a6e61ebaa7c50de0495c4a494c1606d3b510d15e9cb427813617cc59.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 636 wrote to memory of 996 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 636 wrote to memory of 996 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 636 wrote to memory of 996 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\812dfe31a6e61ebaa7c50de0495c4a494c1606d3b510d15e9cb427813617cc59.dll,#1

C:\Windows\SysWOW64\rundll32.exe

rundll32.exe C:\Users\Admin\AppData\Local\Temp\812dfe31a6e61ebaa7c50de0495c4a494c1606d3b510d15e9cb427813617cc59.dll,#1

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 996 -s 680

Network

N/A

Files

memory/996-114-0x0000000000000000-mapping.dmp

memory/996-115-0x00000000744D0000-0x0000000074500000-memory.dmp

memory/996-117-0x0000000004B30000-0x0000000004B53000-memory.dmp