General

  • Target

    b071599d7421436e4c8d1014f279af3920becbd60979867d82fa7e883786d470

  • Size

    451KB

  • Sample

    210515-zp3f38bwke

  • MD5

    85664924a9148c4cd14ec6d9c08eb1f8

  • SHA1

    eff1533c35324a34cfc7aee0be26805cf5373429

  • SHA256

    b071599d7421436e4c8d1014f279af3920becbd60979867d82fa7e883786d470

  • SHA512

    bbf1c2db30d6c9f59c003aaf0aeda2717ea3f4e92da85dbda1dab0a33e891f4ece8478d6026569b5e8275f1e6e93438644db9d0f112dbc18e62ea70875fa9f54

Malware Config

Targets

    • Target

      b071599d7421436e4c8d1014f279af3920becbd60979867d82fa7e883786d470

    • Size

      451KB

    • MD5

      85664924a9148c4cd14ec6d9c08eb1f8

    • SHA1

      eff1533c35324a34cfc7aee0be26805cf5373429

    • SHA256

      b071599d7421436e4c8d1014f279af3920becbd60979867d82fa7e883786d470

    • SHA512

      bbf1c2db30d6c9f59c003aaf0aeda2717ea3f4e92da85dbda1dab0a33e891f4ece8478d6026569b5e8275f1e6e93438644db9d0f112dbc18e62ea70875fa9f54

    • Modifies WinLogon for persistence

    • Modifies system executable filetype association

    • Drops file in Drivers directory

    • Sets service image path in registry

    • Adds Run key to start application

    • Installs/modifies Browser Helper Object

      BHOs are DLL modules which act as plugins for Internet Explorer.

    • Modifies WinLogon

MITRE ATT&CK Matrix ATT&CK v6

Persistence

Winlogon Helper DLL

2
T1004

Change Default File Association

1
T1042

Registry Run Keys / Startup Folder

2
T1060

Browser Extensions

1
T1176

Defense Evasion

Modify Registry

6
T1112

Tasks