General

  • Target

    1752a41c3f8dd77b23548c496cc28457d6a61fe1903d2373a00e25d38127e15e

  • Size

    26KB

  • Sample

    221108-wzqt8adbcl

  • MD5

    00f2c96ac54135d64b1fe38deb21c6d0

  • SHA1

    6113c855657bf685fe54ef198f62c6cf77bfa085

  • SHA256

    1752a41c3f8dd77b23548c496cc28457d6a61fe1903d2373a00e25d38127e15e

  • SHA512

    6f5e7d53faa9574952274aebc74c5deb9c14256b0a449504212d94b2574db015bcd4811034d341cef06b643f7b921bb768e7ab7155e92af5a41339683f70a979

  • SSDEEP

    384:r65Iu0DOSiBuMAjo/BNxf+yOhmwnh2Ij0eohDTkVOhvF27z/FUxiWtBlwmRz:r65JAyg9oNVo2IC9yoYf

Malware Config

Extracted

Family

joker

C2

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

Targets

    • Target

      1752a41c3f8dd77b23548c496cc28457d6a61fe1903d2373a00e25d38127e15e

    • Size

      26KB

    • MD5

      00f2c96ac54135d64b1fe38deb21c6d0

    • SHA1

      6113c855657bf685fe54ef198f62c6cf77bfa085

    • SHA256

      1752a41c3f8dd77b23548c496cc28457d6a61fe1903d2373a00e25d38127e15e

    • SHA512

      6f5e7d53faa9574952274aebc74c5deb9c14256b0a449504212d94b2574db015bcd4811034d341cef06b643f7b921bb768e7ab7155e92af5a41339683f70a979

    • SSDEEP

      384:r65Iu0DOSiBuMAjo/BNxf+yOhmwnh2Ij0eohDTkVOhvF27z/FUxiWtBlwmRz:r65JAyg9oNVo2IC9yoYf

    • 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.

    • 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)

    • 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