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General

  • Target

    Utsysc.exe

  • Size

    5.4MB

  • Sample

    231126-3dznkada5s

  • MD5

    42adcf27247e2f9324ded079d3b52613

  • SHA1

    51793943f7803bdbbb569448c83ca284dc7cb273

  • SHA256

    650513f90b4b88bd0c4564016b87b00db1999c1f281cce6a6e8718bfaa5d8ab9

  • SHA512

    7ca2a7bb790e64fac47333bea915f736f0b09dcf6155cc6d02cc28b1087ef19ea72b5fa770fd43c9a2dad7d032b5dfd7e21f38ef1c2c9897ce5c6c64c5927334

  • SSDEEP

    98304:sIk4EA1UcVPv/GTBiktXL4f7sFjhB7PIf119llL2o+PifA73QHERfgu+rpzTPXp/:sjAaoLS67sFjh6d1Dco+N3ghrVXEq

Malware Config

Targets

    • Target

      Utsysc.exe

    • Size

      5.4MB

    • MD5

      42adcf27247e2f9324ded079d3b52613

    • SHA1

      51793943f7803bdbbb569448c83ca284dc7cb273

    • SHA256

      650513f90b4b88bd0c4564016b87b00db1999c1f281cce6a6e8718bfaa5d8ab9

    • SHA512

      7ca2a7bb790e64fac47333bea915f736f0b09dcf6155cc6d02cc28b1087ef19ea72b5fa770fd43c9a2dad7d032b5dfd7e21f38ef1c2c9897ce5c6c64c5927334

    • SSDEEP

      98304:sIk4EA1UcVPv/GTBiktXL4f7sFjhB7PIf119llL2o+PifA73QHERfgu+rpzTPXp/:sjAaoLS67sFjh6d1Dco+N3ghrVXEq

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

    • Checks BIOS information in registry

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

    • Checks computer location settings

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

    • Executes dropped EXE

    • Loads dropped DLL

    • Themida packer

      Detects Themida, an advanced Windows software protection system.

    • Checks whether UAC is enabled

    • Suspicious use of NtSetInformationThreadHideFromDebugger

MITRE ATT&CK Enterprise v15

Tasks