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Analysis

  • max time kernel
    147s
  • max time network
    151s
  • platform
    windows11-21h2_x64
  • resource
    win11-20240802-en
  • resource tags

    arch:x64arch:x86image:win11-20240802-enlocale:en-usos:windows11-21h2-x64system
  • submitted
    07/09/2024, 07:53

General

  • Target

    539f00f5a8167e37dae485a21d3ea77505eade0fee65b452b808aaaf1777ccac.exe

  • Size

    294KB

  • MD5

    a372b929b61f1181dfa7047559a264aa

  • SHA1

    5bf86f3cef79fa4a693a9acb25cef1928cee4949

  • SHA256

    539f00f5a8167e37dae485a21d3ea77505eade0fee65b452b808aaaf1777ccac

  • SHA512

    59b4674d325e176481fdc98489c6078f681d3935b1bdda8c5bfd428bd16d88b8a83d27c3ed0dbeeef4ec70b4cdaad82a15da5f5e9cc5f0d23fa1b84e41dcc13b

  • SSDEEP

    6144:sfDaoUiX/Iorz8t/J7PiDnEIj/MLRw0Vdh1tQ:sbaozvIov8t/J4EIu5Vdz

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.

  • 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\539f00f5a8167e37dae485a21d3ea77505eade0fee65b452b808aaaf1777ccac.exe
    "C:\Users\Admin\AppData\Local\Temp\539f00f5a8167e37dae485a21d3ea77505eade0fee65b452b808aaaf1777ccac.exe"
    1⤵
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:1956
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /c taskkill /im "539f00f5a8167e37dae485a21d3ea77505eade0fee65b452b808aaaf1777ccac.exe" /f & erase "C:\Users\Admin\AppData\Local\Temp\539f00f5a8167e37dae485a21d3ea77505eade0fee65b452b808aaaf1777ccac.exe" & exit
      2⤵
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:3684
      • C:\Windows\SysWOW64\taskkill.exe
        taskkill /im "539f00f5a8167e37dae485a21d3ea77505eade0fee65b452b808aaaf1777ccac.exe" /f
        3⤵
        • System Location Discovery: System Language Discovery
        • Kills process with taskkill
        • Suspicious use of AdjustPrivilegeToken
        PID:2348
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 1956 -s 1616
      2⤵
      • Program crash
      PID:2196
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 420 -p 1956 -ip 1956
    1⤵
      PID:780

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

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    Downloads

    • C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\IE\FF387UFK\download[1].htm

      Filesize

      1B

      MD5

      cfcd208495d565ef66e7dff9f98764da

      SHA1

      b6589fc6ab0dc82cf12099d1c2d40ab994e8410c

      SHA256

      5feceb66ffc86f38d952786c6d696c79c2dbc239dd4e91b46729d73a27fb57e9

      SHA512

      31bca02094eb78126a517b206a88c73cfa9ec6f704c7030d18212cace820f025f00bf0ea68dbf3f3a5436ca63b53bf7bf80ad8d5de7d8359d0b7fed9dbc3ab99

    • memory/1956-1-0x00000000005D0000-0x00000000006D0000-memory.dmp

      Filesize

      1024KB

    • memory/1956-2-0x00000000022C0000-0x00000000022ED000-memory.dmp

      Filesize

      180KB

    • memory/1956-3-0x0000000000400000-0x000000000042F000-memory.dmp

      Filesize

      188KB

    • memory/1956-8-0x00000000005D0000-0x00000000006D0000-memory.dmp

      Filesize

      1024KB

    • memory/1956-9-0x0000000000400000-0x0000000000451000-memory.dmp

      Filesize

      324KB

    • memory/1956-11-0x00000000022C0000-0x00000000022ED000-memory.dmp

      Filesize

      180KB

    • memory/1956-12-0x0000000000400000-0x000000000042F000-memory.dmp

      Filesize

      188KB

    • memory/1956-21-0x0000000000400000-0x0000000000451000-memory.dmp

      Filesize

      324KB

    • memory/1956-22-0x0000000000400000-0x000000000042F000-memory.dmp

      Filesize

      188KB