General

  • Target

    2024-03-03_58e2612e9410cabeae8c0f2f6dbad694_wannacry

  • Size

    189KB

  • Sample

    240303-3ebm5acb67

  • MD5

    58e2612e9410cabeae8c0f2f6dbad694

  • SHA1

    713553f0a4a860e58b5cb799532363a2dc788118

  • SHA256

    dbb0d1f1017703cca87b6bf1ccc39168ffa7233d1a23c32442d91953e8a62e16

  • SHA512

    eea572130d82afd2d54c013f716615b9fcfc73a14960e6bb5b9dc1c4b59f7a59e8d94e4c74dac4a4165015f7cc6cb8671670eabe2ad4b3cd63f2529253f92ff4

  • SSDEEP

    3072:KojjtUQ8r9Pgoooooooooo8nQbdeHMqYOfao+SDSK3pJZJqvU1EGjeBli/88liFZ:XjMr9PxQOYOSopSKXv+GLHlEF

Malware Config

Targets

    • Target

      2024-03-03_58e2612e9410cabeae8c0f2f6dbad694_wannacry

    • Size

      189KB

    • MD5

      58e2612e9410cabeae8c0f2f6dbad694

    • SHA1

      713553f0a4a860e58b5cb799532363a2dc788118

    • SHA256

      dbb0d1f1017703cca87b6bf1ccc39168ffa7233d1a23c32442d91953e8a62e16

    • SHA512

      eea572130d82afd2d54c013f716615b9fcfc73a14960e6bb5b9dc1c4b59f7a59e8d94e4c74dac4a4165015f7cc6cb8671670eabe2ad4b3cd63f2529253f92ff4

    • SSDEEP

      3072:KojjtUQ8r9Pgoooooooooo8nQbdeHMqYOfao+SDSK3pJZJqvU1EGjeBli/88liFZ:XjMr9PxQOYOSopSKXv+GLHlEF

    • Chaos

      Ransomware family first seen in June 2021.

    • Chaos Ransomware

    • Detects command variations typically used by ransomware

    • Renames multiple (178) files with added filename extension

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

    • Checks computer location settings

      Looks up country code configured in the registry, likely geofence.

    • Drops startup file

    • Executes dropped EXE

    • Reads user/profile data of web browsers

      Infostealers often target stored browser data, which can include saved credentials etc.

    • Drops desktop.ini file(s)

    • Sets desktop wallpaper using registry

MITRE ATT&CK Enterprise v15

Tasks