Analysis

  • max time kernel
    148s
  • max time network
    135s
  • platform
    windows7_x64
  • resource
    win7-20220901-en
  • resource tags

    arch:x64arch:x86image:win7-20220901-enlocale:en-usos:windows7-x64system
  • submitted
    11-10-2022 07:35

General

  • Target

    6924d30402e2c92913a07adb5bc341b9ba89a19c60c07e9f2641311c2e3ce45c.exe

  • Size

    704KB

  • MD5

    22c9c131b9afe97bc42c02b8806bbf3d

  • SHA1

    08f6e7c939f2e0fbaa702c7b2fe60abc8489559d

  • SHA256

    6924d30402e2c92913a07adb5bc341b9ba89a19c60c07e9f2641311c2e3ce45c

  • SHA512

    26e0bba9a0ed8f4081292f5f07f9d706758f09486d85dfd6bd6c8ca5e1f2880c08f95c9b8c7f2b10e25586bd242a815c13420b4cef99efcfa100c1e3ac564656

  • SSDEEP

    6144:0XS5J92W/FwOkNkHcuZuX723YqCm3wgY9IcK2G2dwzEnpjWw+eLO0dN/oHW8sb:0XS5jF74McuZurv7fxG2dwMpjJ+ez

Malware Config

Signatures

  • joker

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

  • Executes dropped EXE 1 IoCs
  • Drops file in Windows directory 1 IoCs
  • Modifies Internet Explorer settings 1 TTPs 12 IoCs
  • Modifies system certificate store 2 TTPs 14 IoCs
  • Suspicious use of SetWindowsHookEx 4 IoCs
  • Suspicious use of WriteProcessMemory 4 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\6924d30402e2c92913a07adb5bc341b9ba89a19c60c07e9f2641311c2e3ce45c.exe
    "C:\Users\Admin\AppData\Local\Temp\6924d30402e2c92913a07adb5bc341b9ba89a19c60c07e9f2641311c2e3ce45c.exe"
    1⤵
    • Drops file in Windows directory
    • Modifies Internet Explorer settings
    • Modifies system certificate store
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:1448
    • C:\WINDOWS\ºüµºµþÅç17ºÅÐÞ¸´·Ç·¨.exe
      C:\WINDOWS\ºüµºµþÅç17ºÅÐÞ¸´·Ç·¨.exe
      2⤵
      • Executes dropped EXE
      PID:1316

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • C:\Windows\ºüµºµþÅç17ºÅÐÞ¸´·Ç·¨.exe

    Filesize

    72KB

    MD5

    e0ae6993d6c552357051518028704f45

    SHA1

    0bb203e5a0d57d427d82e544d6ce56b746f4dab5

    SHA256

    f60ed0315fc5dcef2f0cf8378a2352bc103ed057a5db90e4490b650694dea8a5

    SHA512

    a8954b6480d1364b0eb6bd4ba2a54a51c297d25d9ac1093a95e26358265f0baa15d229704cf727bffd363c98af7f683dc03c69dc39122f4f3294dcbb06f15740

  • memory/1316-60-0x0000000000400000-0x0000000000412000-memory.dmp

    Filesize

    72KB

  • memory/1448-54-0x00000000758B1000-0x00000000758B3000-memory.dmp

    Filesize

    8KB

  • memory/1448-59-0x00000000003D0000-0x00000000003E2000-memory.dmp

    Filesize

    72KB

  • memory/1448-58-0x00000000003D0000-0x00000000003E2000-memory.dmp

    Filesize

    72KB

  • memory/1448-71-0x00000000003D0000-0x00000000003E2000-memory.dmp

    Filesize

    72KB

  • memory/1448-72-0x00000000003D0000-0x00000000003E2000-memory.dmp

    Filesize

    72KB