General

  • Target

    b309d2353e6faeb08cb4f1bfcb4b621b

  • Size

    472KB

  • Sample

    240304-y7ywxadc82

  • MD5

    b309d2353e6faeb08cb4f1bfcb4b621b

  • SHA1

    1aa2be497f4ee7770a4ab0a86dd77f8602241ddd

  • SHA256

    dba8caa3f2df314d28cbd0472fb4181c2cafddc05e9c4edb6a694af4d9187cca

  • SHA512

    5bc3c4422dfbaa4a40b459b0a14eaaacf83ef496afd478d36b2a9d387bc880167255c4aa8ae0b0a33d5778f0c4159ef46cbf81d340b73bbbc06b0b89e27f1604

  • SSDEEP

    6144:LiMmXRH6pXfSb0ceR/VFAHh1kgcs0HW1kyApHhP+gDzvRAExJex5gfzDVlVXgaVH:5MMpXKb0hNGh1kG0HWnALbix5GpX/H

Malware Config

Targets

    • Target

      b309d2353e6faeb08cb4f1bfcb4b621b

    • Size

      472KB

    • MD5

      b309d2353e6faeb08cb4f1bfcb4b621b

    • SHA1

      1aa2be497f4ee7770a4ab0a86dd77f8602241ddd

    • SHA256

      dba8caa3f2df314d28cbd0472fb4181c2cafddc05e9c4edb6a694af4d9187cca

    • SHA512

      5bc3c4422dfbaa4a40b459b0a14eaaacf83ef496afd478d36b2a9d387bc880167255c4aa8ae0b0a33d5778f0c4159ef46cbf81d340b73bbbc06b0b89e27f1604

    • SSDEEP

      6144:LiMmXRH6pXfSb0ceR/VFAHh1kgcs0HW1kyApHhP+gDzvRAExJex5gfzDVlVXgaVH:5MMpXKb0hNGh1kG0HWnALbix5GpX/H

    • 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