General

  • Target

    ab7b8c6838cd96c08fde537907e56ac0.exe

  • Size

    834KB

  • Sample

    240107-yc1f9adfe7

  • MD5

    ab7b8c6838cd96c08fde537907e56ac0

  • SHA1

    02ea761b88f90a641eb88de8e7ad99d77fd917e3

  • SHA256

    a0c64195f226bdbf50d86312d5c64046567262385969fcb9c1aef9f1139154ba

  • SHA512

    85718bffa0ead44d46724ce97793809a82e544790ed4adc48f86b87dff280464695fdc6c378af1401856af1952e872fb0f0fe1a7ec9350da2b09c146e2ba4a60

  • SSDEEP

    12288:zMMpXKb0hNGh1kG0HWNAuCsltHiw+VsLkjrVlQB9FbDTF53nlNFRpO50w9XCfyGt:zMMpXS0hN0V0HDIHiw7

Malware Config

Targets

    • Target

      ab7b8c6838cd96c08fde537907e56ac0.exe

    • Size

      834KB

    • MD5

      ab7b8c6838cd96c08fde537907e56ac0

    • SHA1

      02ea761b88f90a641eb88de8e7ad99d77fd917e3

    • SHA256

      a0c64195f226bdbf50d86312d5c64046567262385969fcb9c1aef9f1139154ba

    • SHA512

      85718bffa0ead44d46724ce97793809a82e544790ed4adc48f86b87dff280464695fdc6c378af1401856af1952e872fb0f0fe1a7ec9350da2b09c146e2ba4a60

    • SSDEEP

      12288:zMMpXKb0hNGh1kG0HWNAuCsltHiw+VsLkjrVlQB9FbDTF53nlNFRpO50w9XCfyGt:zMMpXS0hN0V0HDIHiw7

    • Modifies WinLogon for persistence

    • Renames multiple (84) files with added filename extension

      This suggests ransomware activity of encrypting all the files on the system.

    • ASPack v2.12-2.42

      Detects executables packed with ASPack v2.12-2.42

    • Drops startup file

    • Executes dropped EXE

    • Loads dropped DLL

    • Enumerates connected drives

      Attempts to read the root path of hard drives other than the default C: drive.

    • Drops autorun.inf file

      Malware can abuse Windows Autorun to spread further via attached volumes.

    • Drops file in System32 directory

MITRE ATT&CK Enterprise v15

Tasks