Analysis

  • max time kernel
    152s
  • max time network
    170s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20221111-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20221111-enlocale:en-usos:windows10-2004-x64system
  • submitted
    04-12-2022 07:47

General

  • Target

    9604f734530c6f1b42d49bd2552da2fb3478b546e244973cf59df47aae4a5c63.exe

  • Size

    132KB

  • MD5

    f9734ebce9d2d3b228f3c12ff13df3fb

  • SHA1

    b3055825fafe264d1649882098251a925515516b

  • SHA256

    9604f734530c6f1b42d49bd2552da2fb3478b546e244973cf59df47aae4a5c63

  • SHA512

    767592c9e043829ead65b380436253ce61e91fb6a619fca8ee6040fcb50ace2f7e31e0692dbbb71323af7de0fe518b074b88a09c7f9390d1d8f911c85f6cff5a

  • SSDEEP

    3072:qanf/L6NUf6VRlxzhPak8LXo46sBizhUe:D/LiUSVPxNPaLLXoNii6e

Score
10/10

Malware Config

Signatures

  • Modifies visiblity of hidden/system files in Explorer 2 TTPs 2 IoCs
  • Executes dropped EXE 1 IoCs
  • Checks computer location settings 2 TTPs 1 IoCs

    Looks up country code configured in the registry, likely geofence.

  • Adds Run key to start application 2 TTPs 52 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious use of SetWindowsHookEx 2 IoCs
  • Suspicious use of WriteProcessMemory 3 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\9604f734530c6f1b42d49bd2552da2fb3478b546e244973cf59df47aae4a5c63.exe
    "C:\Users\Admin\AppData\Local\Temp\9604f734530c6f1b42d49bd2552da2fb3478b546e244973cf59df47aae4a5c63.exe"
    1⤵
    • Modifies visiblity of hidden/system files in Explorer
    • Checks computer location settings
    • Adds Run key to start application
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:1328
    • C:\Users\Admin\maujia.exe
      "C:\Users\Admin\maujia.exe"
      2⤵
      • Modifies visiblity of hidden/system files in Explorer
      • Executes dropped EXE
      • Adds Run key to start application
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of SetWindowsHookEx
      PID:4968

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • C:\Users\Admin\maujia.exe

    Filesize

    132KB

    MD5

    25c6d2c77b9be79c7533b640a146358f

    SHA1

    a9e617a3383d39a087be9d243472d1f0800505b1

    SHA256

    8126b8fc5a4763a42c209817dcc8bf75198b45af1056288d3b9359ebd72cf9c3

    SHA512

    d622eb271355043e0c8462dd2c640b0b35a946f768f6a1c2b668bf6921e0fe8944c1a7f746b014d4e24cf28eb8138b4e3ceaa0a533da33c75d2377cf95f29afd

  • C:\Users\Admin\maujia.exe

    Filesize

    132KB

    MD5

    25c6d2c77b9be79c7533b640a146358f

    SHA1

    a9e617a3383d39a087be9d243472d1f0800505b1

    SHA256

    8126b8fc5a4763a42c209817dcc8bf75198b45af1056288d3b9359ebd72cf9c3

    SHA512

    d622eb271355043e0c8462dd2c640b0b35a946f768f6a1c2b668bf6921e0fe8944c1a7f746b014d4e24cf28eb8138b4e3ceaa0a533da33c75d2377cf95f29afd

  • memory/1328-132-0x0000000000400000-0x0000000000428000-memory.dmp

    Filesize

    160KB

  • memory/1328-133-0x0000000000400000-0x0000000000428000-memory.dmp

    Filesize

    160KB

  • memory/4968-141-0x0000000000400000-0x0000000000428000-memory.dmp

    Filesize

    160KB

  • memory/4968-142-0x0000000000400000-0x0000000000428000-memory.dmp

    Filesize

    160KB