General

  • Target

    790d1abe38d8263ce71f97605c9c474eb3eec57d64ddc61ccbcf23c28da117b4

  • Size

    26KB

  • Sample

    221108-wzp8pabdg6

  • MD5

    0f9b981d348df5e559eeb65ff6f94db0

  • SHA1

    6e7bfc51cdbb6a3360d04e3bf01f39a5611d7581

  • SHA256

    790d1abe38d8263ce71f97605c9c474eb3eec57d64ddc61ccbcf23c28da117b4

  • SHA512

    7064ea627a92e3904b6789f43cc592c8cebee4428e2d9a9d9f3f68f0ad6fc3bcba5cf1d9bde304ffc29545fc68f694e0c9a343d500825fe84fabc43287d7a75e

  • SSDEEP

    384:r6NhPbj62Tj9xec1JmLfBY5vX0kda6j0eohDTkVOhvF27z/FUxiWtBlwmRz:rem2Tbar+f0Ua6C9yoYf

Malware Config

Extracted

Family

joker

C2

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

Targets

    • Target

      790d1abe38d8263ce71f97605c9c474eb3eec57d64ddc61ccbcf23c28da117b4

    • Size

      26KB

    • MD5

      0f9b981d348df5e559eeb65ff6f94db0

    • SHA1

      6e7bfc51cdbb6a3360d04e3bf01f39a5611d7581

    • SHA256

      790d1abe38d8263ce71f97605c9c474eb3eec57d64ddc61ccbcf23c28da117b4

    • SHA512

      7064ea627a92e3904b6789f43cc592c8cebee4428e2d9a9d9f3f68f0ad6fc3bcba5cf1d9bde304ffc29545fc68f694e0c9a343d500825fe84fabc43287d7a75e

    • SSDEEP

      384:r6NhPbj62Tj9xec1JmLfBY5vX0kda6j0eohDTkVOhvF27z/FUxiWtBlwmRz:rem2Tbar+f0Ua6C9yoYf

    • 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)

    • 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