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Analysis

  • max time kernel
    94s
  • max time network
    96s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    07/09/2024, 18:13

General

  • Target

    a89101fbb3524961362af049e54e8d2b93ed0a6120b72b9c7824ade4db8a8c34.exe

  • Size

    294KB

  • MD5

    e31f3a2e963a7e7129a9d6ae35c6384d

  • SHA1

    4ff2507be78ebc8ad15374f4cad94258cc7de470

  • SHA256

    a89101fbb3524961362af049e54e8d2b93ed0a6120b72b9c7824ade4db8a8c34

  • SHA512

    c646ad6f94f34850e3fb29d4936abd33e79680b556936dd11f36743f6c5f264ba1a84b90ab5adf645803991c7131c8de021c82f1b98974100203e42764ead623

  • SSDEEP

    6144:2CBbfnESxoe7rWI8SRVOLss9E5dhDs0U8S/wjfF/Q:2gn9xoe7LzRQJ9As0vR/

Malware Config

Extracted

Family

gcleaner

C2

80.66.75.114

Signatures

  • GCleaner

    GCleaner is a Pay-Per-Install malware loader first discovered in early 2019.

  • Checks computer location settings 2 TTPs 1 IoCs

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

  • Enumerates physical storage devices 1 TTPs

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

  • Program crash 1 IoCs
  • System Location Discovery: System Language Discovery 1 TTPs 3 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • Kills process with taskkill 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 6 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\a89101fbb3524961362af049e54e8d2b93ed0a6120b72b9c7824ade4db8a8c34.exe
    "C:\Users\Admin\AppData\Local\Temp\a89101fbb3524961362af049e54e8d2b93ed0a6120b72b9c7824ade4db8a8c34.exe"
    1⤵
    • Checks computer location settings
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:2068
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /c taskkill /im "a89101fbb3524961362af049e54e8d2b93ed0a6120b72b9c7824ade4db8a8c34.exe" /f & erase "C:\Users\Admin\AppData\Local\Temp\a89101fbb3524961362af049e54e8d2b93ed0a6120b72b9c7824ade4db8a8c34.exe" & exit
      2⤵
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:4880
      • C:\Windows\SysWOW64\taskkill.exe
        taskkill /im "a89101fbb3524961362af049e54e8d2b93ed0a6120b72b9c7824ade4db8a8c34.exe" /f
        3⤵
        • System Location Discovery: System Language Discovery
        • Kills process with taskkill
        • Suspicious use of AdjustPrivilegeToken
        PID:2480
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 2068 -s 1492
      2⤵
      • Program crash
      PID:3248
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 432 -p 2068 -ip 2068
    1⤵
      PID:3444

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

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    Downloads

    • C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\IE\3HDB1LPD\download[1].htm

      Filesize

      1B

      MD5

      cfcd208495d565ef66e7dff9f98764da

      SHA1

      b6589fc6ab0dc82cf12099d1c2d40ab994e8410c

      SHA256

      5feceb66ffc86f38d952786c6d696c79c2dbc239dd4e91b46729d73a27fb57e9

      SHA512

      31bca02094eb78126a517b206a88c73cfa9ec6f704c7030d18212cace820f025f00bf0ea68dbf3f3a5436ca63b53bf7bf80ad8d5de7d8359d0b7fed9dbc3ab99

    • memory/2068-1-0x0000000000520000-0x0000000000620000-memory.dmp

      Filesize

      1024KB

    • memory/2068-2-0x00000000004D0000-0x00000000004FD000-memory.dmp

      Filesize

      180KB

    • memory/2068-3-0x0000000000400000-0x000000000042F000-memory.dmp

      Filesize

      188KB

    • memory/2068-8-0x0000000000520000-0x0000000000620000-memory.dmp

      Filesize

      1024KB

    • memory/2068-10-0x0000000000400000-0x0000000000451000-memory.dmp

      Filesize

      324KB

    • memory/2068-11-0x00000000004D0000-0x00000000004FD000-memory.dmp

      Filesize

      180KB

    • memory/2068-12-0x0000000000400000-0x000000000042F000-memory.dmp

      Filesize

      188KB

    • memory/2068-21-0x0000000000400000-0x0000000000451000-memory.dmp

      Filesize

      324KB

    • memory/2068-22-0x0000000000400000-0x000000000042F000-memory.dmp

      Filesize

      188KB