General

  • Target

    b82fee436ee7c29f7c79c32704175e8e4d851cf348949216d4b88075078528fa

  • Size

    31KB

  • Sample

    221028-25qdjabbh4

  • MD5

    53ae298211da868b18338d2d89bc46cc

  • SHA1

    361ffe812c33d35620426e5cc2bc2fb0dccc6a07

  • SHA256

    b82fee436ee7c29f7c79c32704175e8e4d851cf348949216d4b88075078528fa

  • SHA512

    6b322b864461f3349ce47b93b90052868f8a9aeddc7893afd6b02f3620d09cc7a81e1ffb8a8a73b9ab24d7c5513bc9cbb289508b1acc8adcd003026dcfe283b8

  • SSDEEP

    768:ryH8hV1CeI36mVgpX8uekF08JGdJxsLoIBCYR/9m:r2R36mapX8uVF08J7HL

Malware Config

Extracted

Family

joker

C2

http://tankgme.oss-cn-qingdao.aliyuncs.com

Targets

    • Target

      b82fee436ee7c29f7c79c32704175e8e4d851cf348949216d4b88075078528fa

    • Size

      31KB

    • MD5

      53ae298211da868b18338d2d89bc46cc

    • SHA1

      361ffe812c33d35620426e5cc2bc2fb0dccc6a07

    • SHA256

      b82fee436ee7c29f7c79c32704175e8e4d851cf348949216d4b88075078528fa

    • SHA512

      6b322b864461f3349ce47b93b90052868f8a9aeddc7893afd6b02f3620d09cc7a81e1ffb8a8a73b9ab24d7c5513bc9cbb289508b1acc8adcd003026dcfe283b8

    • SSDEEP

      768:ryH8hV1CeI36mVgpX8uekF08JGdJxsLoIBCYR/9m:r2R36mapX8uVF08J7HL

    • Cobaltstrike

      Detected malicious payload which is part of Cobaltstrike.

    • joker

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

    • ACProtect 1.3x - 1.4x DLL software

      Detects file using ACProtect software.

    • 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.

    • Loads dropped DLL

    • Reads user/profile data of web browsers

      Infostealers often target stored browser data, which can include saved credentials etc.

    • 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)

    • Enumerates connected drives

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

    • 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