General

  • Target

    3b0a5347033eda5eea82c327e55cb705

  • Size

    844KB

  • Sample

    231231-ztaslagef6

  • MD5

    3b0a5347033eda5eea82c327e55cb705

  • SHA1

    293f29e770e9d7f6b55edef4e6a631c29909a026

  • SHA256

    3ba5771e48eb87e3cc85c5011ee606728c4e5f6e837b29be3728e82d30129007

  • SHA512

    89958cd161e2dd167bb9499b7a441799a3a341b8e2d1e54d99c66c815b4e39bc0dcc88333e5fada265c41c0f4a64d785575467726cfdf149cf7d2cb7606e904b

  • SSDEEP

    12288:5MMpXKb0hNGh1kG0HWnALbCKB8NIpYJTCihq82WFpXKEVFA2MC6Nv:5MMpXS0hN0V0H+KB8NIyXbacAff

Malware Config

Targets

    • Target

      3b0a5347033eda5eea82c327e55cb705

    • Size

      844KB

    • MD5

      3b0a5347033eda5eea82c327e55cb705

    • SHA1

      293f29e770e9d7f6b55edef4e6a631c29909a026

    • SHA256

      3ba5771e48eb87e3cc85c5011ee606728c4e5f6e837b29be3728e82d30129007

    • SHA512

      89958cd161e2dd167bb9499b7a441799a3a341b8e2d1e54d99c66c815b4e39bc0dcc88333e5fada265c41c0f4a64d785575467726cfdf149cf7d2cb7606e904b

    • SSDEEP

      12288:5MMpXKb0hNGh1kG0HWnALbCKB8NIpYJTCihq82WFpXKEVFA2MC6Nv:5MMpXS0hN0V0H+KB8NIyXbacAff

    • Modifies WinLogon for persistence

    • Renames multiple (91) 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