Analysis

  • max time kernel
    51s
  • max time network
    125s
  • platform
    windows7_x64
  • resource
    win7-20220812-en
  • resource tags

    arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
  • submitted
    22-09-2022 03:22

General

  • Target

    05a08f55b6f711ba4d2f5a127d77e00940d5a6f97009e8b6c7efca9cc0d61079.exe

  • Size

    2.4MB

  • MD5

    773ac9a3530aeb24a96e777fa00bebb7

  • SHA1

    e1f6b2a96428a80fcd6df3d7c714c6e2d459da3e

  • SHA256

    05a08f55b6f711ba4d2f5a127d77e00940d5a6f97009e8b6c7efca9cc0d61079

  • SHA512

    685316b87462f2d6b6cfc4d304f2edbe4e001d327bcf2e9d66f6014747a7cdd69d4e3f3150b7dddf570cbfc0fe04b0ec739e285810dcc1d1f63f2c9da709d2af

  • SSDEEP

    49152:EEsJnEevhTHZOyKNwSsLRMphAPeBO77QM/ekKXvcdRS:EEwnESZTcAPuO77QMxKXk2

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

Processes

  • C:\Users\Admin\AppData\Local\Temp\05a08f55b6f711ba4d2f5a127d77e00940d5a6f97009e8b6c7efca9cc0d61079.exe
    "C:\Users\Admin\AppData\Local\Temp\05a08f55b6f711ba4d2f5a127d77e00940d5a6f97009e8b6c7efca9cc0d61079.exe"
    1⤵
    • Modifies Internet Explorer settings
    • Modifies registry class
    • Modifies system certificate store
    • Suspicious use of SetWindowsHookEx
    PID:1048
  • C:\Windows\system32\AUDIODG.EXE
    C:\Windows\system32\AUDIODG.EXE 0x1dc
    1⤵
    • Suspicious use of AdjustPrivilegeToken
    PID:1980

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • memory/1048-54-0x0000000076171000-0x0000000076173000-memory.dmp

    Filesize

    8KB