Resubmissions

01/02/2022, 09:10

220201-k4279scee510

15/01/2022, 13:42

220115-qztyzsefhn10

12/01/2022, 12:30

220112-ppk3nacfbl10

10/01/2022, 10:49

220110-mwsd7sebe310

07/01/2022, 20:35

220107-zc2jzsdaeq10

07/01/2022, 10:05

220107-l4rxzacba810

06/01/2022, 22:46

220106-2qch5abff510

06/01/2022, 19:07

220106-xsnxqabhfl10

06/01/2022, 15:26

220106-svedvabda510

06/01/2022, 15:25

220106-st3p2sbgcq10

General

  • Target
    4446186b0133b453f35a839b841ba453377c9a5638c1d81ee2313bb3adc22aaf
  • Size 339KB
  • Sample220201-k4279scee5
  • SHA256 4446186b0133b453f35a839b841ba453377c9a5638c1d81ee2313bb3adc22aaf
  • MD5 SHA1 SHA512

Malware Config

Extracted

Family
  • smokeloader

Version
  • 2020

C2
  • http://host-data-coin-11.com/

  • http://file-coin-host-12.com/

rc4.i32
rc4.i32

Targets

    • Target
      4446186b0133b453f35a839b841ba453377c9a5638c1d81ee2313bb3adc22aaf
    • Size 339KB
    • SHA256 4446186b0133b453f35a839b841ba453377c9a5638c1d81ee2313bb3adc22aaf
    • MD5 SHA1 SHA512
    • SmokeLoader

      Modular backdoor trojan in use since 2014.

    • Suspicious use of NtCreateProcessExOtherParentProcess

    • Disables Task Manager via registry modification

    • Executes dropped EXE

    • Checks computer location settings

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

    • Deletes itself

    • Loads dropped DLL

    • Adds Run key to start application

    • Enumerates connected drives

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

    • Modifies WinLogon

    • Program crash

    • Sets desktop wallpaper using registry

    • Suspicious use of SetThreadContext

MITRE ATT&CK Enterprise v6

Tasks