Analysis

  • max time kernel
    154s
  • max time network
    160s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240226-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
  • submitted
    29-05-2024 22:08

General

  • Target

    477484286161223da65e75036d86bb3712c0e322258f174e2f74cc2cdccd4dae.exe

  • Size

    3.0MB

  • MD5

    349b58ac22ceee7a2d9f5becb6b68ae1

  • SHA1

    c4e2f6de987d2dad58305490b758ed8b71820f74

  • SHA256

    477484286161223da65e75036d86bb3712c0e322258f174e2f74cc2cdccd4dae

  • SHA512

    a9e3f169477cac925731509f99b9dd18a117a149fabb62c1458c9104edaf5fe39631da2a8ae2ab513d47f1d515c574324a24e14dcd3fe812437b4564209ddcd4

  • SSDEEP

    98304:/A8h1iV9lP9Wp24uD3+s7/ilFH47zSHOrv:/A80P9o24SDWB47zS+v

Score
9/10

Malware Config

Signatures

  • CryptOne packer 1 IoCs

    Detects CryptOne packer defined in NCC blogpost.

  • Executes dropped EXE 2 IoCs
  • Enumerates connected drives 3 TTPs 21 IoCs

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

  • Drops file in Program Files directory 64 IoCs
  • Drops file in Windows directory 4 IoCs
  • Runs net.exe
  • Suspicious behavior: EnumeratesProcesses 20 IoCs
  • Suspicious use of WriteProcessMemory 17 IoCs

Processes

  • C:\Windows\Explorer.EXE
    C:\Windows\Explorer.EXE
    1⤵
      PID:3384
      • C:\Users\Admin\AppData\Local\Temp\477484286161223da65e75036d86bb3712c0e322258f174e2f74cc2cdccd4dae.exe
        "C:\Users\Admin\AppData\Local\Temp\477484286161223da65e75036d86bb3712c0e322258f174e2f74cc2cdccd4dae.exe"
        2⤵
        • Drops file in Windows directory
        • Suspicious use of WriteProcessMemory
        PID:4752
        • C:\Windows\SysWOW64\cmd.exe
          C:\Windows\system32\cmd.exe /c C:\Users\Admin\AppData\Local\Temp\$$a1B63.bat
          3⤵
          • Suspicious use of WriteProcessMemory
          PID:5004
          • C:\Users\Admin\AppData\Local\Temp\477484286161223da65e75036d86bb3712c0e322258f174e2f74cc2cdccd4dae.exe
            "C:\Users\Admin\AppData\Local\Temp\477484286161223da65e75036d86bb3712c0e322258f174e2f74cc2cdccd4dae.exe"
            4⤵
            • Executes dropped EXE
            PID:932
        • C:\Windows\Logo1_.exe
          C:\Windows\Logo1_.exe
          3⤵
          • Executes dropped EXE
          • Enumerates connected drives
          • Drops file in Program Files directory
          • Drops file in Windows directory
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of WriteProcessMemory
          PID:536
          • C:\Windows\SysWOW64\net.exe
            net stop "Kingsoft AntiVirus Service"
            4⤵
            • Suspicious use of WriteProcessMemory
            PID:856
            • C:\Windows\SysWOW64\net1.exe
              C:\Windows\system32\net1 stop "Kingsoft AntiVirus Service"
              5⤵
                PID:2160
      • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
        "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --no-appcompat-clear --mojo-platform-channel-handle=1040 --field-trial-handle=2264,i,15001568551143786084,90255922961447677,262144 --variations-seed-version /prefetch:8
        1⤵
          PID:3048

        Network

        MITRE ATT&CK Matrix ATT&CK v13

        Discovery

        Query Registry

        1
        T1012

        Peripheral Device Discovery

        1
        T1120

        System Information Discovery

        1
        T1082

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        • C:\Program Files\7-Zip\7z.exe
          Filesize

          570KB

          MD5

          069adcd61f51089f14b9488b8528d033

          SHA1

          5023d0cc190db01def44145ce65547c815b985a5

          SHA256

          3c9a901c62e390eb72e460f54b2d887b33bc0c141f3de7ca4b0090fdcdd4a9d9

          SHA512

          70b7de359e485b575249d9dd54d33c0518ab52d2fdbacab9050c04f3324f5408525ba948acd83291cd5e0a2d2d93f71bd4835df7d0a58b72ee06b1477d7c1b62

        • C:\Users\Admin\AppData\Local\Temp\$$a1B63.bat
          Filesize

          722B

          MD5

          5ba983362c80f64a49db7cb8ea4a39ca

          SHA1

          962102772d349157bb3aa14f7796b1680201bbaf

          SHA256

          a2cf071cf24521a53f92935137375970cc8f9e3efd92fe420430d68815e8b167

          SHA512

          7b9a19a47842b15fd2552934d8bf22f22cdd20baca720b0035708320d14f7d7c7bfdebe9ae27b998dca8b7ffdd7dbb018e777c051eff9279fb7fd0d79745973f

        • C:\Users\Admin\AppData\Local\Temp\477484286161223da65e75036d86bb3712c0e322258f174e2f74cc2cdccd4dae.exe.exe
          Filesize

          3.0MB

          MD5

          a94ed6699d08a59484fd2d4884cf4400

          SHA1

          135a80e681ec8b9e0e5d1a41c2617a8c46ea780e

          SHA256

          2122b63576219671aae4e32c706ad997a4d5220b5cfd94f1f134fe3c53b66b14

          SHA512

          879729c1aa1c6a8a1195afa7df2d212a731fa4f7991149ac6eb2f0786f4f727fe93aa74998b49491536fd8af5a6a98ab77adadf2d2b7cd02569a3c2fb877a62d

        • C:\Windows\Logo1_.exe
          Filesize

          26KB

          MD5

          773d4ec846cc53c96e2ff8dd102079e4

          SHA1

          b654768c79314a1a7bcddd3e744703cab0beaf97

          SHA256

          683baf581a18f3dcd8322de60398c793150eb75d0480964ccd3a8b7b915522db

          SHA512

          c3989fefed8a01d718acccfaf1775d1351bdb2a1a8a714cb8ca81044b723a0bb33a185819aa76fc06720b7c6ffe70af0a80b4e4d0b81634a86dffc8ec15559e3

        • F:\$RECYCLE.BIN\S-1-5-21-3808065738-1666277613-1125846146-1000\_desktop.ini
          Filesize

          9B

          MD5

          4b2b75605a65a6762ec4715de0a70902

          SHA1

          3b85993ef06d2d814abc405188fdd19a1bffea0c

          SHA256

          77072cc5a7b394508cf5d819ff8cf4385a9b3cb15d8715a59845ccfa235ea34e

          SHA512

          888361e75afd4308bdad817af543704a42ffdf2d798acef619459e9978ac68f1cf4d468c6e0b146ab738b0109fdf331c4380471aa83f637b0f6ab06164840c65

        • memory/536-33-0x0000000000400000-0x0000000000434000-memory.dmp
          Filesize

          208KB

        • memory/536-19-0x0000000000400000-0x0000000000434000-memory.dmp
          Filesize

          208KB

        • memory/536-9-0x0000000000400000-0x0000000000434000-memory.dmp
          Filesize

          208KB

        • memory/536-26-0x0000000000400000-0x0000000000434000-memory.dmp
          Filesize

          208KB

        • memory/536-37-0x0000000000400000-0x0000000000434000-memory.dmp
          Filesize

          208KB

        • memory/536-42-0x0000000000400000-0x0000000000434000-memory.dmp
          Filesize

          208KB

        • memory/536-74-0x0000000000400000-0x0000000000434000-memory.dmp
          Filesize

          208KB

        • memory/536-446-0x0000000000400000-0x0000000000434000-memory.dmp
          Filesize

          208KB

        • memory/536-1016-0x0000000000400000-0x0000000000434000-memory.dmp
          Filesize

          208KB

        • memory/536-1183-0x0000000000400000-0x0000000000434000-memory.dmp
          Filesize

          208KB

        • memory/4752-0-0x0000000000400000-0x0000000000434000-memory.dmp
          Filesize

          208KB

        • memory/4752-12-0x0000000000400000-0x0000000000434000-memory.dmp
          Filesize

          208KB