Resubmissions

06/10/2026, 13:47

261006-q3jbnabz9l6

06/10/2026, 13:40

261006-qyjrmayy6p1

05/10/2026, 20:36

261005-zdj2bstw6l

05/10/2026, 20:18

261005-y3cswasema10

05/10/2026, 20:07

261005-yv62rats2r10

05/10/2026, 19:41

261005-yd3yrstshv10

05/10/2026, 19:08

261005-xtqspsst3m10

05/10/2026, 19:05

261005-xrhdjsss7p6

General

  • Target
    hi.txt
  • Size 54B
  • Sample261005-xtqspsst3m
  • SHA256 cf67cc9a5eae0ec01e007e2a5a1143ddfefc124fd45ae42cb1db2418b01f54aa
  • MD5 SHA1 SHA512

Malware Config

Targets

    • Target
      hi.txt
    • Size 54B
    • SHA256 cf67cc9a5eae0ec01e007e2a5a1143ddfefc124fd45ae42cb1db2418b01f54aa
    • MD5 SHA1 SHA512
    • Detects KillMBR

    • Family: KillMBR

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

    • Downloads MZ/PE file

    • A potential corporate email address has been identified in the URL

    • Checks computer location settings

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

    • Executes dropped EXE

    • Loads dropped DLL

    • Checks installed software on the system

      Looks up Uninstall key entries in the registry to enumerate software on the system.

    • Contacts third-party web service commonly abused for C2

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

    • Creates a large amount of network flows

      This may indicate a network scan to discover remotely running services.

    • Drops desktop.ini file(s)

    • Writes to the Master Boot Record (MBR)

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

    • AutoIT Executable

      AutoIT scripts compiled to PE executables.

    • Probable phishing domain

MITRE ATT&CK Enterprise v16

Tasks