General

  • Target

    123.bin.zip

  • Size

    1.8MB

  • Sample

    240416-b47y3sgb3z

  • MD5

    4e9a3e4be4fa2be61b7c45a87e0cdac8

  • SHA1

    2415bf10bb3860ff15e327fc1b21e8e5d1e65a55

  • SHA256

    3961f56f9ca8d8fd6662857c416757dea19d72f4ec6ea14b2262ca66601d9a96

  • SHA512

    96fc3e61747199c6da2c1123028caa89fd2cbc41a7d930c6ba7f4e822f0af3681019d6f5dd6b2ab19661d4bff36567a806b4358a9074345d277301b70be6a685

  • SSDEEP

    49152:3WDDJMvRbXc1ABqfNaydTI/P1i/u8fjXdCbfT5:3WHeXchfNayi/Pmu07cLT5

Malware Config

Targets

    • Target

      123.bin

    • Size

      2.1MB

    • MD5

      f571faca510bffe809c76c1828d44523

    • SHA1

      7a3ca1660f0a513316b8cd5496ac7dbe82f0e0c2

    • SHA256

      117d7af0deb40b3fe532bb6cbe374884fa55ed7cfe053fe698720cdccb5a59cb

    • SHA512

      a08bca2fb1387cc70b737520d566c7117aa3fdb9a52f5dbb0bb7be44630da7977882d8c808cbee843c8a180777b4ac5819e8bafda6b2c883e380dc7fb5358a51

    • SSDEEP

      49152:OwVYlfBUDiZx8Fa/Q0NuB3btlnCItWNSwoy:OxPUDQmso0NuBZlnCItM

    • Adds policy Run key to start application

    • Drops file in Drivers directory

    • 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

    • UPX packed file

      Detects executables packed with UPX/modified UPX open source packer.

    • Adds Run key to start application

    • Checks installed software on the system

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

    • Checks whether UAC is enabled

    • Writes to the Master Boot Record (MBR)

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

    • Drops file in System32 directory

MITRE ATT&CK Enterprise v15

Tasks