Analysis

  • max time kernel
    147s
  • max time network
    153s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240226-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
  • submitted
    10/03/2024, 09:21

General

  • Target

    be3ea91aeef77123178691460409af80.exe

  • Size

    3.9MB

  • MD5

    be3ea91aeef77123178691460409af80

  • SHA1

    0876c49fc9b1ba5fc66b447a70da9543febf210a

  • SHA256

    d338ce535952dc5c63c78aa7ff0278df82dcd442619931eac88b8f1bc9314861

  • SHA512

    f45af2b275d369b6ab7fad0b1b8b4105635ffeef35187c5f5b5299b377d6059698364e01e9a1f2341e4392c65e422a4a54bdcf088e08b2b25f49e61822d6b593

  • SSDEEP

    98304:m83KPnN07YtKcakcibiqhMbMgOn7n0bcakcibiqhNRza4ZQGWQcakcibiqhMbMgo:m83u07/dlirybMgOnkdlirdH9WQdlirV

Score
7/10
upx

Malware Config

Signatures

  • Deletes itself 1 IoCs
  • Executes dropped EXE 1 IoCs
  • UPX packed file 3 IoCs

    Detects executables packed with UPX/modified UPX open source packer.

  • Legitimate hosting services abused for malware hosting/C2 1 TTPs 1 IoCs
  • Program crash 1 IoCs
  • Creates scheduled task(s) 1 TTPs 1 IoCs

    Schtasks is often used by malware for persistence or to perform post-infection execution.

  • Modifies system certificate store 2 TTPs 5 IoCs
  • Suspicious behavior: RenamesItself 1 IoCs
  • Suspicious use of UnmapMainImage 2 IoCs
  • Suspicious use of WriteProcessMemory 12 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\be3ea91aeef77123178691460409af80.exe
    "C:\Users\Admin\AppData\Local\Temp\be3ea91aeef77123178691460409af80.exe"
    1⤵
    • Suspicious behavior: RenamesItself
    • Suspicious use of UnmapMainImage
    • Suspicious use of WriteProcessMemory
    PID:2736
    • C:\Users\Admin\AppData\Local\Temp\be3ea91aeef77123178691460409af80.exe
      C:\Users\Admin\AppData\Local\Temp\be3ea91aeef77123178691460409af80.exe
      2⤵
      • Deletes itself
      • Executes dropped EXE
      • Modifies system certificate store
      • Suspicious use of UnmapMainImage
      • Suspicious use of WriteProcessMemory
      PID:2132
      • C:\Windows\SysWOW64\schtasks.exe
        schtasks.exe /CREATE /RL HIGHEST /SC ONLOGON /TR "C:\Users\Admin\AppData\Local\Temp\be3ea91aeef77123178691460409af80.exe" /TN KWm9daCVa92a /F
        3⤵
        • Creates scheduled task(s)
        PID:3356
      • C:\Windows\SysWOW64\cmd.exe
        cmd.exe /c schtasks.exe /Query /XML /TN KWm9daCVa92a > C:\Users\Admin\AppData\Local\Temp\HMNXy.xml
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:2368
        • C:\Windows\SysWOW64\schtasks.exe
          schtasks.exe /Query /XML /TN KWm9daCVa92a
          4⤵
            PID:1840
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 2132 -s 612
          3⤵
          • Program crash
          PID:400
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -pss -s 428 -p 2132 -ip 2132
      1⤵
        PID:4240

      Network

      MITRE ATT&CK Enterprise v15

      Replay Monitor

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      Downloads

      • C:\Users\Admin\AppData\Local\Temp\HMNXy.xml

        Filesize

        1KB

        MD5

        ab81013fc302abb1a601f0aa270c5b7f

        SHA1

        3c9671702972fc12d184a8a2799073934d6f6fad

        SHA256

        34c5e2024cd2dc436d35f1ed7d8ebef4a7e6183805f89d97fb172629294d6b5f

        SHA512

        9a87f41f5cb476b3230f92656843423a43d680482b68db9b00c119015a3a7c447f65f3be3291b88dd7ebe2ded23baaf2240c18ae373f03bf9c85c1fcc0312015

      • C:\Users\Admin\AppData\Local\Temp\be3ea91aeef77123178691460409af80.exe

        Filesize

        2.9MB

        MD5

        38a32ee50b112308b1d4d0cb5067b3b2

        SHA1

        d70b012c727b2bbbc235e2c2479728042a9af522

        SHA256

        a9cf6d288d36fde9b6aac411a06ccd6e94ed9ec2582a9f5c8a49356b0dc64962

        SHA512

        334670b171779a27f5ee37662a8261380dd77a39c684d33faf6e42960d29d03f515e0d6a5409d28fa182327878ae843313a3cefc93d35419dbc5c1fd385b5be6

      • memory/2132-14-0x0000000000400000-0x000000000065C000-memory.dmp

        Filesize

        2.4MB

      • memory/2132-16-0x0000000001660000-0x00000000016DE000-memory.dmp

        Filesize

        504KB

      • memory/2132-22-0x0000000000470000-0x00000000004DB000-memory.dmp

        Filesize

        428KB

      • memory/2132-23-0x0000000000400000-0x000000000045B000-memory.dmp

        Filesize

        364KB

      • memory/2132-41-0x0000000000400000-0x000000000065C000-memory.dmp

        Filesize

        2.4MB

      • memory/2736-0-0x0000000000400000-0x000000000065C000-memory.dmp

        Filesize

        2.4MB

      • memory/2736-1-0x0000000000400000-0x000000000046B000-memory.dmp

        Filesize

        428KB

      • memory/2736-2-0x0000000001730000-0x00000000017AE000-memory.dmp

        Filesize

        504KB

      • memory/2736-13-0x0000000000400000-0x000000000046B000-memory.dmp

        Filesize

        428KB