General

  • Target

    SynapseZbootstrapper.exe

  • Size

    81.2MB

  • Sample

    240728-wvl1gawhqj

  • MD5

    7f781bf5f85941cfc5c2f889c8a5bb58

  • SHA1

    db3f1143c243106075f4c2e57c8a2a358d19af3d

  • SHA256

    006da770400ef4d8d61f0a47c2685eabc507d765137f755e882e44cd7486c7f1

  • SHA512

    fa37a654411df6fed868e37cf57e2d0a572ad7f06b5340aa111ecaefb8516f6a1f515b5f307b98373a4a2690246698716cffea63ac6e1dbcaf66e643f2916748

  • SSDEEP

    1572864:lxZQglX2jB7vaSk8IpG7V+VPhqb+dtgWU9tgW8lgZnfurijYmfRIlW6wt/Pbxv1r:lxZxR2eSkB05awb+MWUsW8eZnfAijYG9

Malware Config

Targets

    • Target

      SynapseZbootstrapper.exe

    • Size

      81.2MB

    • MD5

      7f781bf5f85941cfc5c2f889c8a5bb58

    • SHA1

      db3f1143c243106075f4c2e57c8a2a358d19af3d

    • SHA256

      006da770400ef4d8d61f0a47c2685eabc507d765137f755e882e44cd7486c7f1

    • SHA512

      fa37a654411df6fed868e37cf57e2d0a572ad7f06b5340aa111ecaefb8516f6a1f515b5f307b98373a4a2690246698716cffea63ac6e1dbcaf66e643f2916748

    • SSDEEP

      1572864:lxZQglX2jB7vaSk8IpG7V+VPhqb+dtgWU9tgW8lgZnfurijYmfRIlW6wt/Pbxv1r:lxZxR2eSkB05awb+MWUsW8eZnfAijYG9

    • Enumerates VirtualBox DLL files

    • Command and Scripting Interpreter: PowerShell

      Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.

    • Sets file to hidden

      Modifies file attributes to stop it showing in Explorer etc.

    • Executes dropped EXE

    • Loads dropped DLL

    • UPX packed file

      Detects executables packed with UPX/modified UPX open source packer.

    • Adds Run key to start application

    • Legitimate hosting services abused for malware hosting/C2

MITRE ATT&CK Enterprise v15

Tasks