Overview

overview

6

Static

static

5

anvirrus.exe

windows10-2004-x64

6

anvirrus.exe

windows11-ltsc_2024-x64

6

Sharing

Copy URL Twitter E-mail

General

  • Target
    anvirrus.exe
  • Size 4.2MB
  • Sample260721-nc5e4afw31
  • SHA256 0bd3193b8d956fab39534d42c2c7768d7867085642e1128221265b69d0d1bcc7
  • MD5 SHA1 SHA512 SSDEEP TLSH
Score
6/10
bootkitdefense_evasiondiscoveryexecutionpersistencespywaretrojanupx

Malware Config

Targets

    • Target
      anvirrus.exe
    • Size 4.2MB
    • SHA256 0bd3193b8d956fab39534d42c2c7768d7867085642e1128221265b69d0d1bcc7
    • MD5 SHA1 SHA512 SSDEEP TLSH
    Score
    6/10
    bootkitdefense_evasiondiscoveryexecutionpersistencespywaretrojan

    • Adds Run key to start application

      persistence

    • Enumerates connected drives

      Attempts to read the root path of hard drives other than the default C: drive.

    • Writes to the Master Boot Record (MBR)

      Bootkits write to the MBR to gain persistence at a level below the operating system.

      bootkitpersistence

    • Drops file in System32 directory

    behavioral1behavioral2

MITRE ATT&CK Enterprise v16

Reconnaissance

Resource Development

Initial Access

Execution

Scheduled Task/Job

1
T1053

Scheduled Task

1
T1053.005

Persistence

Boot or Logon Autostart Execution

1
T1547

Registry Run Keys / Startup Folder

1
T1547.001

Pre-OS Boot

1
T1542

Bootkit

1
T1542.003

Scheduled Task/Job

1
T1053

Scheduled Task

1
T1053.005

Privilege Escalation

Boot or Logon Autostart Execution

1
T1547

Registry Run Keys / Startup Folder

1
T1547.001

Scheduled Task/Job

1
T1053

Scheduled Task

1
T1053.005

Defense Evasion

Modify Registry

2
T1112

Pre-OS Boot

1
T1542

Bootkit

1
T1542.003

Subvert Trust Controls

1
T1553

Install Root Certificate

1
T1553.004

Credential Access

Discovery

Browser Information Discovery

1
T1217

Peripheral Device Discovery

1
T1120

Query Registry

5
T1012

System Information Discovery

4
T1082

System Location Discovery

1
T1614

System Language Discovery

1
T1614.001

System Time Discovery

1
T1124

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Tasks