General

  • Target

    OZMZA_random.exe

  • Size

    5.7MB

  • Sample

    250208-yb993aznew

  • MD5

    147f838d39e79dace6bd1ffe69de4720

  • SHA1

    9e500d620c60e9ca88dd55934d638ca474c3745a

  • SHA256

    43c564b5f2587149259e538dbdceef713c9463b0f930072b93fa1f3e4c1fad20

  • SHA512

    2b6c5fb52b7152d1fb3ef33f10e8faaf7022eb4882a308cc15d1dc9d88d6ee19faf193989faea8fb49cfd25baf3fde1d97af279155a1dfbe39ceb0be62b0e480

  • SSDEEP

    49152:naxHF9VoG6Dq4nk7B+Tn6td243jg3Un4/Rwskpghk8jlhK:aZFYHk7YIQ43gUQwdghk8jlh

Malware Config

Extracted

Family

gcleaner

C2

185.156.73.23

Targets

    • Target

      OZMZA_random.exe

    • Size

      5.7MB

    • MD5

      147f838d39e79dace6bd1ffe69de4720

    • SHA1

      9e500d620c60e9ca88dd55934d638ca474c3745a

    • SHA256

      43c564b5f2587149259e538dbdceef713c9463b0f930072b93fa1f3e4c1fad20

    • SHA512

      2b6c5fb52b7152d1fb3ef33f10e8faaf7022eb4882a308cc15d1dc9d88d6ee19faf193989faea8fb49cfd25baf3fde1d97af279155a1dfbe39ceb0be62b0e480

    • SSDEEP

      49152:naxHF9VoG6Dq4nk7B+Tn6td243jg3Un4/Rwskpghk8jlhK:aZFYHk7YIQ43gUQwdghk8jlh

    • GCleaner

      GCleaner is a Pay-Per-Install malware loader first discovered in early 2019.

    • Gcleaner family

    • Identifies VirtualBox via ACPI registry values (likely anti-VM)

    • Downloads MZ/PE file

    • Checks BIOS information in registry

      BIOS information is often read in order to detect sandboxing environments.

    • Identifies Wine through registry keys

      Wine is a compatibility layer capable of running Windows applications, which can be used as sandboxing environment.

    • Suspicious use of NtSetInformationThreadHideFromDebugger

MITRE ATT&CK Enterprise v15

Tasks