Analysis

  • max time kernel
    150s
  • max time network
    154s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20221111-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20221111-enlocale:en-usos:windows10-2004-x64system
  • submitted
    18/11/2022, 20:16

General

  • Target

    file.exe

  • Size

    2.0MB

  • MD5

    9c1e5ab6a9e05cd35b23f792e85f514a

  • SHA1

    35a564b694099db228ec184d22b9de3f6c2ff5b2

  • SHA256

    c78c055e91264d511ae62f01a1a5286cf2d16bc5678395709832c36a63b2eea1

  • SHA512

    a0ea75920e6f4cde791c29c49dbef72abf677e820cca06686e5e2b038ba4b7a30a8dbfb8204309e3b5d4147cbaa63d7b01aee319d150696634c005d0f7a43d91

  • SSDEEP

    49152:q28djPccqdjdZAXv+eWfXJXBP3s+xOHw3+/y4L++Rl0yHfRx7Pq2:r8d5qdnAfta5RfsCl+/Br1PD

Score
8/10

Malware Config

Signatures

  • Executes dropped EXE 2 IoCs
  • Loads dropped DLL 1 IoCs
  • Checks installed software on the system 1 TTPs

    Looks up Uninstall key entries in the registry to enumerate software on the system.

  • Drops file in Program Files directory 12 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Suspicious use of WriteProcessMemory 6 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\file.exe
    "C:\Users\Admin\AppData\Local\Temp\file.exe"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:2116
    • C:\Users\Admin\AppData\Local\Temp\is-D32D0.tmp\is-IDNLC.tmp
      "C:\Users\Admin\AppData\Local\Temp\is-D32D0.tmp\is-IDNLC.tmp" /SL4 $80056 "C:\Users\Admin\AppData\Local\Temp\file.exe" 1801059 54784
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Drops file in Program Files directory
      • Suspicious use of WriteProcessMemory
      PID:4324
      • C:\Program Files (x86)\grSearcher\grsearcher83.exe
        "C:\Program Files (x86)\grSearcher\grsearcher83.exe"
        3⤵
        • Executes dropped EXE
        PID:2404

Network

        MITRE ATT&CK Enterprise v6

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        • C:\Program Files (x86)\grSearcher\grsearcher83.exe

          Filesize

          2.8MB

          MD5

          2901599849c63bb80880129edd38c3ed

          SHA1

          c5acc4af1c891fc38b9e464891ef82e152f20bbe

          SHA256

          9a7c43f5c3129a6e26cb469a748068a530fedad3bd763e8f6b9b41acd1e18857

          SHA512

          55052b5e5fd3b8c6633722f889645f51fdd643f7e47474c57fed2ef3db8aeff26b08354b190170157f85e7648e042ae8dfc509777caa3d755dbb72907a6091e8

        • C:\Program Files (x86)\grSearcher\grsearcher83.exe

          Filesize

          2.8MB

          MD5

          2901599849c63bb80880129edd38c3ed

          SHA1

          c5acc4af1c891fc38b9e464891ef82e152f20bbe

          SHA256

          9a7c43f5c3129a6e26cb469a748068a530fedad3bd763e8f6b9b41acd1e18857

          SHA512

          55052b5e5fd3b8c6633722f889645f51fdd643f7e47474c57fed2ef3db8aeff26b08354b190170157f85e7648e042ae8dfc509777caa3d755dbb72907a6091e8

        • C:\Users\Admin\AppData\Local\Temp\is-5KV36.tmp\_isetup\_iscrypt.dll

          Filesize

          2KB

          MD5

          a69559718ab506675e907fe49deb71e9

          SHA1

          bc8f404ffdb1960b50c12ff9413c893b56f2e36f

          SHA256

          2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc

          SHA512

          e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

        • C:\Users\Admin\AppData\Local\Temp\is-D32D0.tmp\is-IDNLC.tmp

          Filesize

          659KB

          MD5

          34a3efb47055787f7a4537fb08fb93ec

          SHA1

          7396195a1bc60f31bb90b5c8abf4b4ce95ec06f9

          SHA256

          fe0505386751f6c7a49d4b3594cc99c8936a9906e49c595934e586f0b9a9e409

          SHA512

          055b18c604aa583f0150f39e564438e15cd07dff308212a2c508978e2347224e2c7979f5066fb4f4e9073d5a76ee845d659214cd5f8669ce808e74d0078520ff

        • C:\Users\Admin\AppData\Local\Temp\is-D32D0.tmp\is-IDNLC.tmp

          Filesize

          659KB

          MD5

          34a3efb47055787f7a4537fb08fb93ec

          SHA1

          7396195a1bc60f31bb90b5c8abf4b4ce95ec06f9

          SHA256

          fe0505386751f6c7a49d4b3594cc99c8936a9906e49c595934e586f0b9a9e409

          SHA512

          055b18c604aa583f0150f39e564438e15cd07dff308212a2c508978e2347224e2c7979f5066fb4f4e9073d5a76ee845d659214cd5f8669ce808e74d0078520ff

        • memory/2116-132-0x0000000000400000-0x0000000000414000-memory.dmp

          Filesize

          80KB

        • memory/2116-138-0x0000000000400000-0x0000000000414000-memory.dmp

          Filesize

          80KB

        • memory/2116-142-0x0000000000400000-0x0000000000414000-memory.dmp

          Filesize

          80KB

        • memory/2404-143-0x0000000000400000-0x00000000014C8000-memory.dmp

          Filesize

          16.8MB

        • memory/2404-144-0x0000000000400000-0x00000000014C8000-memory.dmp

          Filesize

          16.8MB