General

  • Target

    2024-05-23_31e4fa0b1031669fcf132dfbaa171875_cryptolocker

  • Size

    67KB

  • Sample

    240523-br9xxagf39

  • MD5

    31e4fa0b1031669fcf132dfbaa171875

  • SHA1

    bd480e0b04d88196f19195ae4b4117c7b9d58683

  • SHA256

    4babcb8b10817b15c2afd1f56357ba366cb66c1694f4b6fc6df19e537fea05ca

  • SHA512

    1ac1502bc04e5d0b5755922881bd44481bdfb17e6f684ee7a606f432ae76bc0b85a374854b616d80cd7bcc575377f670b36782ce786e2b40a901ddae8ddec81f

  • SSDEEP

    1536:P8mnK6QFElP6n+gymddpMOtEvwDpjYibAoQRQ:1nK6a+qdOOtEvwDpj9

Score
10/10
upx

Malware Config

Targets

    • Target

      2024-05-23_31e4fa0b1031669fcf132dfbaa171875_cryptolocker

    • Size

      67KB

    • MD5

      31e4fa0b1031669fcf132dfbaa171875

    • SHA1

      bd480e0b04d88196f19195ae4b4117c7b9d58683

    • SHA256

      4babcb8b10817b15c2afd1f56357ba366cb66c1694f4b6fc6df19e537fea05ca

    • SHA512

      1ac1502bc04e5d0b5755922881bd44481bdfb17e6f684ee7a606f432ae76bc0b85a374854b616d80cd7bcc575377f670b36782ce786e2b40a901ddae8ddec81f

    • SSDEEP

      1536:P8mnK6QFElP6n+gymddpMOtEvwDpjYibAoQRQ:1nK6a+qdOOtEvwDpj9

    Score
    9/10
    • Detection of CryptoLocker Variants

    • Detection of Cryptolocker Samples

    • UPX dump on OEP (original entry point)

    • 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.

MITRE ATT&CK Enterprise v15

Tasks