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General

  • Target

    JC_fb31becd251c87450afffbc194d4a93c87db29d40a5857fa13959124db68fdff

  • Size

    215KB

  • Sample

    231012-sc227afa5w

  • MD5

    8ea351569502e25ccc2e22fe07de34de

  • SHA1

    ce3337bf8eff1f6ce9b269d876f685fa4e9da37d

  • SHA256

    fb31becd251c87450afffbc194d4a93c87db29d40a5857fa13959124db68fdff

  • SHA512

    833afac8de18ed09d57a0b4ae32223c101ccb58b4bc6d19f18775e89766a4b83322b033bd89795853780e81a48e0a89371d7e14d8611f663bed06ba81199450d

  • SSDEEP

    3072:dAXRhajNeLyTfK8U6sj/+aOZOEcJrcanXplEPmAZHI5TvpTJel:GRhkNeLsS8U6mOM1J5nZ6PJZH6vpTU

Malware Config

Extracted

Family

smokeloader

Botnet

up4

Extracted

Family

smokeloader

Version

2020

C2

http://host-file-file0.com/

http://file-file-file1.com/

rc4.i32
rc4.i32

Targets

    • Target

      JC_fb31becd251c87450afffbc194d4a93c87db29d40a5857fa13959124db68fdff

    • Size

      215KB

    • MD5

      8ea351569502e25ccc2e22fe07de34de

    • SHA1

      ce3337bf8eff1f6ce9b269d876f685fa4e9da37d

    • SHA256

      fb31becd251c87450afffbc194d4a93c87db29d40a5857fa13959124db68fdff

    • SHA512

      833afac8de18ed09d57a0b4ae32223c101ccb58b4bc6d19f18775e89766a4b83322b033bd89795853780e81a48e0a89371d7e14d8611f663bed06ba81199450d

    • SSDEEP

      3072:dAXRhajNeLyTfK8U6sj/+aOZOEcJrcanXplEPmAZHI5TvpTJel:GRhkNeLsS8U6mOM1J5nZ6PJZH6vpTU

    • SmokeLoader

      Modular backdoor trojan in use since 2014.

    • Modifies Installed Components in the registry

    • Deletes itself

    • Enumerates connected drives

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

    • Suspicious use of SetThreadContext

MITRE ATT&CK Enterprise v15

Tasks