Analysis

  • max time kernel
    79s
  • max time network
    134s
  • platform
    windows7_x64
  • resource
    win7-20220812-en
  • resource tags

    arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
  • submitted
    22-09-2022 02:51

General

  • Target

    621b8cd3dafef04ff9eeade9f79a181d924fbc26dc4448c6864cbcc7f225d427.exe

  • Size

    1.4MB

  • MD5

    7b657a5eadf2b736bf52b80132398830

  • SHA1

    1c6d5a8d79b371b079e0d35de1e3b510211e696e

  • SHA256

    621b8cd3dafef04ff9eeade9f79a181d924fbc26dc4448c6864cbcc7f225d427

  • SHA512

    3f3d937070af331607058df2fddeaa58a85b55d7ba5c974e71d7bf3c987df7211e0a3bd87c0a3e03d8f0a664f7cc641c37c5319100e06c2bf9d60eeb3d65b575

  • SSDEEP

    24576:EEsZg89x5NU+wnzihMeDfWmASWKBzTXBfxztO9gtBwUwIWvq0hflRWAhTr/j5ODD:EEsJnEevhTHZOybbwIuTlJj5ODUG

Malware Config

Signatures

  • joker

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

  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

  • Modifies Internet Explorer settings 1 TTPs 14 IoCs
  • Modifies registry class 10 IoCs
  • Modifies system certificate store 2 TTPs 14 IoCs
  • Suspicious use of AdjustPrivilegeToken 4 IoCs
  • Suspicious use of SetWindowsHookEx 2 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\621b8cd3dafef04ff9eeade9f79a181d924fbc26dc4448c6864cbcc7f225d427.exe
    "C:\Users\Admin\AppData\Local\Temp\621b8cd3dafef04ff9eeade9f79a181d924fbc26dc4448c6864cbcc7f225d427.exe"
    1⤵
    • Modifies Internet Explorer settings
    • Modifies registry class
    • Modifies system certificate store
    • Suspicious use of SetWindowsHookEx
    PID:988
  • C:\Windows\system32\AUDIODG.EXE
    C:\Windows\system32\AUDIODG.EXE 0x5a8
    1⤵
    • Suspicious use of AdjustPrivilegeToken
    PID:680

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • memory/988-54-0x0000000075021000-0x0000000075023000-memory.dmp

    Filesize

    8KB