General

  • Target

    2fa89e3595694b92ea5022373a190ce7943b0261fb4eb3deed5351c54b3334bd

  • Size

    26KB

  • Sample

    221107-gst6qsbfc7

  • MD5

    0d613686086de68f5cc925132dad3a70

  • SHA1

    d26aa6a04330ca5611b8980d444be5d1e05e788a

  • SHA256

    2fa89e3595694b92ea5022373a190ce7943b0261fb4eb3deed5351c54b3334bd

  • SHA512

    d1634098b21b722c9b0b10afcccacca67b2bf656d5230d9ca39e9060b9be85897f3b0c4801627b6449652d0a056e0bae431a9c4bee39c8742253a02b1a44244c

  • SSDEEP

    384:rG5Iu0DOSiBuMAjo/BNxf+yOhmwnh2ej0eohDTkVOhvF27z/FUxiWtBlwmRz:rG5JAyg9oNVo2eC9yoYf

Malware Config

Extracted

Family

joker

C2

http://mmtie.oss-cn-hangzhou.aliyuncs.com

Targets

    • Target

      2fa89e3595694b92ea5022373a190ce7943b0261fb4eb3deed5351c54b3334bd

    • Size

      26KB

    • MD5

      0d613686086de68f5cc925132dad3a70

    • SHA1

      d26aa6a04330ca5611b8980d444be5d1e05e788a

    • SHA256

      2fa89e3595694b92ea5022373a190ce7943b0261fb4eb3deed5351c54b3334bd

    • SHA512

      d1634098b21b722c9b0b10afcccacca67b2bf656d5230d9ca39e9060b9be85897f3b0c4801627b6449652d0a056e0bae431a9c4bee39c8742253a02b1a44244c

    • SSDEEP

      384:rG5Iu0DOSiBuMAjo/BNxf+yOhmwnh2ej0eohDTkVOhvF27z/FUxiWtBlwmRz:rG5JAyg9oNVo2eC9yoYf

    • Cobaltstrike

      Detected malicious payload which is part of Cobaltstrike.

    • joker

      Joker is an Android malware that targets billing and SMS fraud.

    • Downloads MZ/PE file

    • Drops file in Drivers directory

    • Executes dropped EXE

    • Registers COM server for autorun

    • Sets file execution options in registry

    • Sets service image path in registry

    • UPX packed file

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

    • 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

    • Checks installed software on the system

      Looks up Uninstall key entries in the registry to enumerate software on the system.

    • Drops desktop.ini file(s)

    • Writes to the Master Boot Record (MBR)

      Bootkits write to the MBR to gain persistence at a level below the operating system.

    • Drops file in System32 directory

MITRE ATT&CK Enterprise v6

Tasks