General

  • Target

    overwriteb.exe

  • Size

    1.2MB

  • Sample

    240810-sq7jtsyhqc

  • MD5

    32500fb7e83dc58967cc8ea0ca6d576f

  • SHA1

    793139eb9148796f85dd79d9557925e5bb9181b0

  • SHA256

    aea7dd8d80a173706820c402bbc7ff82df66ae3946a982fda9dbfd5d08c5b656

  • SHA512

    4ff1bc937d87ed82a7ce9375acffcdeef9c853eff0deac40324f20580b111e7cda4d2ca2a19e94d3e3763e2e84b1ef426efe86d75d533333240368852d051aff

  • SSDEEP

    24576:Y4lncn9MB7o23RU4kHBvirnC2XZ/EFHs+ruqzqW6NR6B8cGcLkPpGaWu5qtbPGKe:KuP2PGWTP

Malware Config

Targets

    • Target

      overwriteb.exe

    • Size

      1.2MB

    • MD5

      32500fb7e83dc58967cc8ea0ca6d576f

    • SHA1

      793139eb9148796f85dd79d9557925e5bb9181b0

    • SHA256

      aea7dd8d80a173706820c402bbc7ff82df66ae3946a982fda9dbfd5d08c5b656

    • SHA512

      4ff1bc937d87ed82a7ce9375acffcdeef9c853eff0deac40324f20580b111e7cda4d2ca2a19e94d3e3763e2e84b1ef426efe86d75d533333240368852d051aff

    • SSDEEP

      24576:Y4lncn9MB7o23RU4kHBvirnC2XZ/EFHs+ruqzqW6NR6B8cGcLkPpGaWu5qtbPGKe:KuP2PGWTP

    • Possible privilege escalation attempt

    • Checks computer location settings

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

    • Modifies file permissions

    • 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 v15

Tasks