Analysis

  • max time kernel
    131s
  • max time network
    129s
  • platform
    windows7_x64
  • resource
    win7-20230712-en
  • resource tags

    arch:x64arch:x86image:win7-20230712-enlocale:en-usos:windows7-x64system
  • submitted
    23/08/2023, 22:58

General

  • Target

    873b7ed5d29c5068252c3cc4af264d163de70714b18cd2ab6f5f0fc5ffe9ec0d.exe

  • Size

    1.5MB

  • MD5

    2b6b9053720db30556b5ac70fe2966e2

  • SHA1

    c8e5e1aef88f9b48350f8c32f5a0e35b4dc25439

  • SHA256

    873b7ed5d29c5068252c3cc4af264d163de70714b18cd2ab6f5f0fc5ffe9ec0d

  • SHA512

    a3c37294f9775407ee1bf49935be2a568620daa8b59b942e1b49d6c7158f682911f3a4cf6b30b0cc65617e284b1a19c2fb20d2cc2051e29a79734bd816ceebac

  • SSDEEP

    12288:EIzIM4/h0cRjG/kvMTheu8WDY3HlHgUoSPL/W/ZlW+V1jrpduBgVXceR5+n1p5Gn:EX/h0cEnh8WD8lHvWjW+DXpbrNPf9

Malware Config

Signatures

  • Reads user/profile data of web browsers 2 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

  • Adds Run key to start application 2 TTPs 1 IoCs
  • Enumerates connected drives 3 TTPs 15 IoCs

    Attempts to read the root path of hard drives other than the default C: drive.

  • Drops file in System32 directory 2 IoCs
  • Drops file in Program Files directory 64 IoCs
  • Program crash 1 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious use of WriteProcessMemory 13 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\873b7ed5d29c5068252c3cc4af264d163de70714b18cd2ab6f5f0fc5ffe9ec0d.exe
    "C:\Users\Admin\AppData\Local\Temp\873b7ed5d29c5068252c3cc4af264d163de70714b18cd2ab6f5f0fc5ffe9ec0d.exe"
    1⤵
    • Adds Run key to start application
    • Enumerates connected drives
    • Drops file in System32 directory
    • Drops file in Program Files directory
    • Suspicious use of WriteProcessMemory
    PID:2572
    • C:\Users\Admin\AppData\Local\Temp\873b7ed5d29c5068252c3cc4af264d163de70714b18cd2ab6f5f0fc5ffe9ec0d.exe
      "C:\Users\Admin\AppData\Local\Temp\873b7ed5d29c5068252c3cc4af264d163de70714b18cd2ab6f5f0fc5ffe9ec0d.exe"
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:2356
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 2356 -s 244
        3⤵
        • Program crash
        • Suspicious behavior: GetForegroundWindowSpam
        PID:544

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

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        Downloads

        • C:\Users\Admin\AppData\Local\Temp\ose00000.exe

          Filesize

          150KB

          MD5

          d618b4ce4b295c4924933898ae2cf92e

          SHA1

          b4b72f577976c7708d028d83f65387cd5c84c32a

          SHA256

          ea0685275841da84aba4df0cd2630d2fb32844019b85fe9a624428996292ea69

          SHA512

          a267d014eee52bd01caa8a9c5466f7ff63220384d0eed9993150e5862a1fe81ceb75c4167a37a4856a4876ec28b04ec7f528002fdb995a49543fe851bdf98dee

        • memory/544-5-0x0000000002250000-0x0000000002251000-memory.dmp

          Filesize

          4KB

        • memory/544-4-0x0000000002250000-0x0000000002251000-memory.dmp

          Filesize

          4KB

        • memory/544-6-0x0000000002250000-0x0000000002251000-memory.dmp

          Filesize

          4KB

        • memory/2356-2-0x0000000000C90000-0x0000000000E884C9-memory.dmp

          Filesize

          2.0MB

        • memory/2572-0-0x0000000000C90000-0x0000000000E884C9-memory.dmp

          Filesize

          2.0MB

        • memory/2572-1-0x0000000000950000-0x0000000000B49000-memory.dmp

          Filesize

          2.0MB