Analysis

  • max time kernel
    143s
  • max time network
    147s
  • platform
    windows7_x64
  • resource
    win7-20220901-en
  • resource tags

    arch:x64arch:x86image:win7-20220901-enlocale:en-usos:windows7-x64system
  • submitted
    22-09-2022 02:47

General

  • Target

    bfb6b3d794fa738568ff10888766d56b782d0f1f339f325719fbda61ca5af8a1.exe

  • Size

    905KB

  • MD5

    e6f8f1434bad8f903001d50094cfc7da

  • SHA1

    1c68ed33b2306a30d8c1d0a544943fc22324903e

  • SHA256

    bfb6b3d794fa738568ff10888766d56b782d0f1f339f325719fbda61ca5af8a1

  • SHA512

    8fe68b8fb2938711dd285f99672ceb9bc5652db5a55a5cd293f0a632e20772729659e8f6b6eb4fb05283970a8cd17d2dcd1984fb9b5645f06ef4e459b98856ce

  • SSDEEP

    24576:EEsZg89x5NU+wnzihMeDfWmASWKBzTXBfxztO9gZzez:EEsJnEevhTHZOyZm

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 12 IoCs
  • Suspicious use of AdjustPrivilegeToken 4 IoCs
  • Suspicious use of SetWindowsHookEx 2 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\bfb6b3d794fa738568ff10888766d56b782d0f1f339f325719fbda61ca5af8a1.exe
    "C:\Users\Admin\AppData\Local\Temp\bfb6b3d794fa738568ff10888766d56b782d0f1f339f325719fbda61ca5af8a1.exe"
    1⤵
    • Modifies Internet Explorer settings
    • Modifies registry class
    • Modifies system certificate store
    • Suspicious use of SetWindowsHookEx
    PID:1600
  • C:\Windows\system32\AUDIODG.EXE
    C:\Windows\system32\AUDIODG.EXE 0x560
    1⤵
    • Suspicious use of AdjustPrivilegeToken
    PID:1776

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • memory/1600-54-0x0000000076461000-0x0000000076463000-memory.dmp

    Filesize

    8KB