Resubmissions

09/07/2026, 17:50

260709-wenjcsfx5y3

09/07/2026, 17:30

260709-v3eqpaex2j8

09/07/2026, 17:17

260709-vtzphaev4p10

General

  • Target
    w32_mydoom_a_cleaning_utility.html
  • Size 40KB
  • Sample260709-vtzphaev4p
  • SHA256 3baf30b007df47b7c106b6cffde8344ffeaa2544e61e7e450ee31f02cd1aea09
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Targets

    • Target
      w32_mydoom_a_cleaning_utility.html
    • Size 40KB
    • SHA256 3baf30b007df47b7c106b6cffde8344ffeaa2544e61e7e450ee31f02cd1aea09
    • MD5 SHA1 SHA512 SSDEEP TLSH
    • Detects KillMBR

    • Family: KillMBR

      KillMBR is a trojan that attempts to overwrite the Master Boot Record.

    • Downloads MZ/PE file

    • Checks computer location settings

      Looks up country code configured in the registry, likely geofence.

    • Executes dropped EXE

    • Contacts third-party web service commonly abused for C2

      Legitimate web (hosting) services can be abused by malware authors to host malware or C2s.

    • Writes to the Master Boot Record (MBR)

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

MITRE ATT&CK Enterprise v16

Tasks