Analysis

  • max time kernel
    147s
  • max time network
    133s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240508-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system
  • submitted
    13-05-2024 19:05

General

  • Target

    be22645c61949ad6a077373a7d6cd85e3fae44315632f161adc4c99d5a8e6844.exe

  • Size

    224KB

  • MD5

    5c7fb0927db37372da25f270708103a2

  • SHA1

    120ed9279d85cbfa56e5b7779ffa7162074f7a29

  • SHA256

    be22645c61949ad6a077373a7d6cd85e3fae44315632f161adc4c99d5a8e6844

  • SHA512

    a15f97fad744ccf5f620e5aabb81f48507327b898a9aa4287051464019e0f89224c484e9691812e166471af9beaddcfc3deb2ba878658761f4800663beef7206

  • SSDEEP

    3072:Y059femWRwTs/dbelj0X8/j84pcRXPlU3Upt3or4H84lK8PtpLzLsR/EfcZ:+5RwTs/dSXj84mRXPemxdBlPvLzLeZ

Malware Config

Extracted

Path

C:\Users\Admin\AppData\Local\Temp\!Please Read Me!.txt

Family

wannacry

Ransom Note
Q: What's wrong with my files? A: Ooops, your important files are encrypted. It means you will not be able to access them anymore until they are decrypted. If you follow our instructions we guarantee that you can decrypt all your files quickly and safely! Let's start decrypting! Q: What do I do? A: First, you need to pay service fees for the decryption. Please send $300 worth of bitcoin to this bitcoin address: 15zGqZCTcys6eCjDkE3DypCjXi6QWRV6V1 Next, please find the decrypt software on your desktop, an executable file named "!WannaDecryptor!.exe". If it does not exsit, download the software from the address below. (You may need to disable your antivirus for a while.) rar password: wcry123 Run and follow the instructions! �
Wallets

15zGqZCTcys6eCjDkE3DypCjXi6QWRV6V1

Signatures

  • Wannacry

    WannaCry is a ransomware cryptoworm.

  • Deletes shadow copies 3 TTPs

    Ransomware often targets backup files to inhibit system recovery.

  • Drops startup file 2 IoCs
  • Executes dropped EXE 4 IoCs
  • 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
  • Sets desktop wallpaper using registry 2 TTPs 1 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Kills process with taskkill 4 IoCs
  • Suspicious use of AdjustPrivilegeToken 49 IoCs
  • Suspicious use of SetWindowsHookEx 8 IoCs
  • Suspicious use of WriteProcessMemory 39 IoCs
  • Uses Volume Shadow Copy service COM API

    The Volume Shadow Copy service is used to manage backups/snapshots.

Processes

  • C:\Users\Admin\AppData\Local\Temp\be22645c61949ad6a077373a7d6cd85e3fae44315632f161adc4c99d5a8e6844.exe
    "C:\Users\Admin\AppData\Local\Temp\be22645c61949ad6a077373a7d6cd85e3fae44315632f161adc4c99d5a8e6844.exe"
    1⤵
    • Drops startup file
    • Adds Run key to start application
    • Suspicious use of WriteProcessMemory
    PID:2744
    • C:\Windows\SysWOW64\cmd.exe
      C:\Windows\system32\cmd.exe /c 203261715627137.bat
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:1788
      • C:\Windows\SysWOW64\cscript.exe
        cscript //nologo c.vbs
        3⤵
          PID:2516
      • C:\Users\Admin\AppData\Local\Temp\!WannaDecryptor!.exe
        !WannaDecryptor!.exe f
        2⤵
        • Executes dropped EXE
        • Suspicious use of SetWindowsHookEx
        PID:1320
      • C:\Windows\SysWOW64\taskkill.exe
        taskkill /f /im MSExchange*
        2⤵
        • Kills process with taskkill
        • Suspicious use of AdjustPrivilegeToken
        PID:5000
      • C:\Windows\SysWOW64\taskkill.exe
        taskkill /f /im Microsoft.Exchange.*
        2⤵
        • Kills process with taskkill
        • Suspicious use of AdjustPrivilegeToken
        PID:376
      • C:\Windows\SysWOW64\taskkill.exe
        taskkill /f /im sqlserver.exe
        2⤵
        • Kills process with taskkill
        • Suspicious use of AdjustPrivilegeToken
        PID:3040
      • C:\Windows\SysWOW64\taskkill.exe
        taskkill /f /im sqlwriter.exe
        2⤵
        • Kills process with taskkill
        • Suspicious use of AdjustPrivilegeToken
        PID:4580
      • C:\Users\Admin\AppData\Local\Temp\!WannaDecryptor!.exe
        !WannaDecryptor!.exe c
        2⤵
        • Executes dropped EXE
        • Suspicious use of SetWindowsHookEx
        PID:2948
      • C:\Windows\SysWOW64\cmd.exe
        cmd.exe /c start /b !WannaDecryptor!.exe v
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:2804
        • C:\Users\Admin\AppData\Local\Temp\!WannaDecryptor!.exe
          !WannaDecryptor!.exe v
          3⤵
          • Executes dropped EXE
          • Suspicious use of SetWindowsHookEx
          • Suspicious use of WriteProcessMemory
          PID:2216
          • C:\Windows\SysWOW64\cmd.exe
            cmd.exe /c vssadmin delete shadows /all /quiet & wmic shadowcopy delete & bcdedit /set {default} bootstatuspolicy ignoreallfailures & bcdedit /set {default} recoveryenabled no & wbadmin delete catalog -quiet
            4⤵
            • Suspicious use of WriteProcessMemory
            PID:376
            • C:\Windows\SysWOW64\Wbem\WMIC.exe
              wmic shadowcopy delete
              5⤵
              • Suspicious use of AdjustPrivilegeToken
              PID:2164
      • C:\Users\Admin\AppData\Local\Temp\!WannaDecryptor!.exe
        !WannaDecryptor!.exe
        2⤵
        • Executes dropped EXE
        • Sets desktop wallpaper using registry
        • Suspicious use of SetWindowsHookEx
        PID:3532
    • 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 --field-trial-handle=4612,i,16710585221322798697,8586257254049248207,262144 --variations-seed-version --mojo-platform-channel-handle=3456 /prefetch:8
      1⤵
        PID:1544
      • C:\Windows\system32\vssvc.exe
        C:\Windows\system32\vssvc.exe
        1⤵
        • Suspicious use of AdjustPrivilegeToken
        PID:2172

      Network

      MITRE ATT&CK Enterprise v15

      Replay Monitor

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      Downloads

      • C:\Users\Admin\AppData\Local\Temp\!Please Read Me!.txt

        Filesize

        797B

        MD5

        afa18cf4aa2660392111763fb93a8c3d

        SHA1

        c219a3654a5f41ce535a09f2a188a464c3f5baf5

        SHA256

        227082c719fd4394c1f2311a0877d8a302c5b092bcc49f853a5cf3d2945f42b0

        SHA512

        4161f250d59b7d4d4a6c4f16639d66d21b2a9606de956d22ec00bedb006643fedbbb8e4cde9f6c0c977285918648314883ca91f3442d1125593bf2605f2d5c6b

      • C:\Users\Admin\AppData\Local\Temp\!WannaDecryptor!.exe.lnk

        Filesize

        1KB

        MD5

        5a4cd96b81e360a5dd56c2ea48b2c709

        SHA1

        6e2e8bc08477c03c55623fa5d0f8e242c1c12965

        SHA256

        c174b79eca36e92c3d9df9511768e654098be5e92c1ac0a5da43529b26831d11

        SHA512

        b9c139d5c912a667ce010e733ace54e26b57f0fd6d484dade0ffd112421ec431bdec703fe498a6fc387b8c5f5486a3b65c44b817788bb3ab895bb2459e679316

      • C:\Users\Admin\AppData\Local\Temp\00000000.res

        Filesize

        136B

        MD5

        29ab6dd2300e5a5dad74eea55eef923b

        SHA1

        bdfaa743ac03efacb3fdabc7d360fef1eda42fbf

        SHA256

        288439b467692da821dc06deee78e832aff2152d793268a86ec1c94b4a87a2eb

        SHA512

        8701cedd6d37629abeda42b92ba500efed49f8301d021c15335a97ab51330dc903cc8e8acf56f54d671187e49d28f4ef1b04bc51471a52b49dc8e942c28318e0

      • C:\Users\Admin\AppData\Local\Temp\00000000.res

        Filesize

        136B

        MD5

        210d5b691ee8950f70bd372f180c0b71

        SHA1

        6b71121b3024d81cf8670bdf816400d97b8160b6

        SHA256

        6392ea83c051f0825d22178e874f0dd3df6030240c4da259bfb8db6ad288d72c

        SHA512

        1536ff999e77c9397208b9ea13d2776a79333b439f5a121ce83b96b26f7da999a2cdadb0b2eb5ad285ccaab42782baf56ed394acae66ce71c12a8f0c368ae5ad

      • C:\Users\Admin\AppData\Local\Temp\00000000.res

        Filesize

        136B

        MD5

        ed1e6f4c5a18de969c4489c2e6fddf8d

        SHA1

        dbc5f8d04adb9cca2c94633414010fa9f0a16b07

        SHA256

        b0613e4d2f3ef46a93165812d9befd2d6b513723e8cebcad538a74962bc06835

        SHA512

        cf64640cc26eaeb81c6782fed318d52163795cb86524dd38a3bff3401110ab6110cb5354dafc8fe2f10c4a0770bf5d3825e5b8c7c98440b5ea72b1330c8def69

      • C:\Users\Admin\AppData\Local\Temp\203261715627137.bat

        Filesize

        336B

        MD5

        3540e056349c6972905dc9706cd49418

        SHA1

        492c20442d34d45a6d6790c720349b11ec591cde

        SHA256

        73872a89440a2cba9d22bf4961c3d499ea2c72979c30c455f942374292fedadc

        SHA512

        c949d147100aef59e382c03abf7b162ae62a4d43456eebd730fbedcf5f95f5e1a24f6e349690d52d75331878a6ee8f6b88a7162ee9cf2a49e142196b12d0133c

      • C:\Users\Admin\AppData\Local\Temp\c.vbs

        Filesize

        219B

        MD5

        5f6d40ca3c34b470113ed04d06a88ff4

        SHA1

        50629e7211ae43e32060686d6be17ebd492fd7aa

        SHA256

        0fb5039a2fe7e90cdf3f22140d7f2103f94689b15609efe0edcc8430dd772fc1

        SHA512

        4d4aa1abd2c9183202fd3f0a65b37f07ee0166ba6561f094c13c8ea59752c7bdd960e37c49583746d4464bc3b1dc0b63a1fe36a37ce7e5709cd76ed433befe35

      • C:\Users\Admin\AppData\Local\Temp\c.wry

        Filesize

        628B

        MD5

        fbdc350691b13d530fcf62eafd0134f4

        SHA1

        922e92020c4de1489940644ccccc7027d6836bdb

        SHA256

        3701b6f9d4f5657fda18e1531b237d1415e154deecddde43713dcf5aaad33c28

        SHA512

        1d2e63c8f8633161c0d0ac338206f456dfb35fc286f55d141bb7c8df378a3db2f1baffd8721892b59bf40d282a94f168ca4a8417ec47649a7b9022373109b15c

      • C:\Users\Admin\AppData\Local\Temp\m.wry

        Filesize

        42KB

        MD5

        980b08bac152aff3f9b0136b616affa5

        SHA1

        2a9c9601ea038f790cc29379c79407356a3d25a3

        SHA256

        402046ada270528c9ac38bbfa0152836fe30fb8e12192354e53b8397421430d9

        SHA512

        100cda1f795781042b012498afd783fd6ff03b0068dbd07b2c2e163cd95e6c6e00755ce16b02b017693c9febc149ed02df9df9b607e2b9cca4b07e5bd420f496

      • C:\Users\Admin\AppData\Local\Temp\u.wry

        Filesize

        236KB

        MD5

        cf1416074cd7791ab80a18f9e7e219d9

        SHA1

        276d2ec82c518d887a8a3608e51c56fa28716ded

        SHA256

        78e3f87f31688355c0f398317b2d87d803bd87ee3656c5a7c80f0561ec8606df

        SHA512

        0bb0843a90edacaf1407e6a7273a9fbb896701635e4d9467392b7350ad25a1bec0c1ceef36737b4af5e5841936f4891436eded0533aa3d74c9a54efa42f024c5

      • memory/2744-7-0x0000000010000000-0x0000000010012000-memory.dmp

        Filesize

        72KB