General

  • Target

    008e854e955d36c4b072c58ac5579ebcaf79990866c77dc175f5cfda2e979361

  • Size

    31KB

  • Sample

    221106-feqeysdaa7

  • MD5

    35cb2c9635f4b5710b3b80083a6b7ce0

  • SHA1

    8696216c6bda4f4f82860a0bb17587a77e5fa034

  • SHA256

    008e854e955d36c4b072c58ac5579ebcaf79990866c77dc175f5cfda2e979361

  • SHA512

    5cd8f647c27f3c3719bf1de00068d58097afb9d727b46c14c94a49f9c7cbd5a4a1dfc55f58059a05fb376e71970b9b776c228b68c0da996b300df624f9886ea3

  • SSDEEP

    768:rc58hyoGGoFU9chbrODS8fyGWczGtxMLfbQCYR/9m:rpkoGrFU9clrODLfyGWczrML

Malware Config

Extracted

Family

joker

C2

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

Targets

    • Target

      008e854e955d36c4b072c58ac5579ebcaf79990866c77dc175f5cfda2e979361

    • Size

      31KB

    • MD5

      35cb2c9635f4b5710b3b80083a6b7ce0

    • SHA1

      8696216c6bda4f4f82860a0bb17587a77e5fa034

    • SHA256

      008e854e955d36c4b072c58ac5579ebcaf79990866c77dc175f5cfda2e979361

    • SHA512

      5cd8f647c27f3c3719bf1de00068d58097afb9d727b46c14c94a49f9c7cbd5a4a1dfc55f58059a05fb376e71970b9b776c228b68c0da996b300df624f9886ea3

    • SSDEEP

      768:rc58hyoGGoFU9chbrODS8fyGWczGtxMLfbQCYR/9m:rpkoGrFU9clrODLfyGWczrML

    • 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

    • 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