Analysis

  • max time kernel
    148s
  • max time network
    121s
  • platform
    windows7_x64
  • resource
    win7-20240221-en
  • resource tags

    arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
  • submitted
    11/05/2024, 03:02

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\Documents\!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 1 IoCs
  • Executes dropped EXE 4 IoCs
  • Loads dropped DLL 9 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 2 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Interacts with shadow copies 2 TTPs 1 IoCs

    Shadow copies are often targeted by ransomware to inhibit system recovery.

  • Kills process with taskkill 4 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 47 IoCs
  • Suspicious use of SetWindowsHookEx 8 IoCs
  • Suspicious use of WriteProcessMemory 56 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
    • Loads dropped DLL
    • Adds Run key to start application
    • Suspicious use of WriteProcessMemory
    PID:2488
    • C:\Windows\SysWOW64\cmd.exe
      cmd /c 44671715396549.bat
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:2644
      • C:\Windows\SysWOW64\cscript.exe
        cscript //nologo c.vbs
        3⤵
        • Loads dropped DLL
        PID:2780
    • C:\Users\Admin\AppData\Local\Temp\!WannaDecryptor!.exe
      !WannaDecryptor!.exe f
      2⤵
      • Executes dropped EXE
      • Suspicious use of SetWindowsHookEx
      PID:2200
    • C:\Windows\SysWOW64\taskkill.exe
      taskkill /f /im MSExchange*
      2⤵
      • Kills process with taskkill
      • Suspicious use of AdjustPrivilegeToken
      PID:828
    • C:\Windows\SysWOW64\taskkill.exe
      taskkill /f /im Microsoft.Exchange.*
      2⤵
      • Kills process with taskkill
      • Suspicious use of AdjustPrivilegeToken
      PID:2280
    • C:\Windows\SysWOW64\taskkill.exe
      taskkill /f /im sqlserver.exe
      2⤵
      • Kills process with taskkill
      • Suspicious use of AdjustPrivilegeToken
      PID:2248
    • C:\Windows\SysWOW64\taskkill.exe
      taskkill /f /im sqlwriter.exe
      2⤵
      • Kills process with taskkill
      • Suspicious use of AdjustPrivilegeToken
      PID:2068
    • C:\Users\Admin\AppData\Local\Temp\!WannaDecryptor!.exe
      !WannaDecryptor!.exe c
      2⤵
      • Executes dropped EXE
      • Suspicious use of SetWindowsHookEx
      PID:1412
    • C:\Windows\SysWOW64\cmd.exe
      cmd.exe /c start /b !WannaDecryptor!.exe v
      2⤵
      • Loads dropped DLL
      • Suspicious use of WriteProcessMemory
      PID:2356
      • C:\Users\Admin\AppData\Local\Temp\!WannaDecryptor!.exe
        !WannaDecryptor!.exe v
        3⤵
        • Executes dropped EXE
        • Suspicious use of SetWindowsHookEx
        • Suspicious use of WriteProcessMemory
        PID:1708
        • 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:1792
          • C:\Windows\SysWOW64\vssadmin.exe
            vssadmin delete shadows /all /quiet
            5⤵
            • Interacts with shadow copies
            PID:2100
          • C:\Windows\SysWOW64\Wbem\WMIC.exe
            wmic shadowcopy delete
            5⤵
            • Suspicious use of AdjustPrivilegeToken
            PID:1796
    • C:\Users\Admin\AppData\Local\Temp\!WannaDecryptor!.exe
      !WannaDecryptor!.exe
      2⤵
      • Executes dropped EXE
      • Sets desktop wallpaper using registry
      • Suspicious behavior: GetForegroundWindowSpam
      • Suspicious use of SetWindowsHookEx
      PID:1036
  • C:\Windows\system32\vssvc.exe
    C:\Windows\system32\vssvc.exe
    1⤵
    • Suspicious use of AdjustPrivilegeToken
    PID:328

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

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        Downloads

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

          Filesize

          236KB

          MD5

          cf1416074cd7791ab80a18f9e7e219d9

          SHA1

          276d2ec82c518d887a8a3608e51c56fa28716ded

          SHA256

          78e3f87f31688355c0f398317b2d87d803bd87ee3656c5a7c80f0561ec8606df

          SHA512

          0bb0843a90edacaf1407e6a7273a9fbb896701635e4d9467392b7350ad25a1bec0c1ceef36737b4af5e5841936f4891436eded0533aa3d74c9a54efa42f024c5

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

          Filesize

          925B

          MD5

          89b1a936034b85c2f050e429747e4b8e

          SHA1

          2f96d54ffdfe7ad9dddc127bc357941d18914268

          SHA256

          4380a31361de4f3d84123a9ee8cfda104e1975b3f8873ab742aefc10df556a1a

          SHA512

          03dacc8c85d7986fc4066cf38908e1e9ca5d057fcb53b74cc694780b14471603881d70e90bfa071d677b5e26ad8899d0228a15b46dc4d26c93e0cae5caf404f3

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

          Filesize

          136B

          MD5

          dab42afa5cd9fc2c83f9fbb95787f6fb

          SHA1

          72d8e1f6cbdad080b7ccdc09c603cd2855ffe3be

          SHA256

          cd7454876f0b743f4058656a9664d3e5b2088b0ae3d8f04f94b972537a7c067f

          SHA512

          5dc3c85d051855f381d4f7bf5e2b3e28267c283c4a399972d6777b8ec83135c2ca932856f83c612dfd17029209f4c6c2887bd8a6cb4092531274653dc3537bb2

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

          Filesize

          136B

          MD5

          64b578f9b15c1bf635b9c549acc84905

          SHA1

          b9fec9055c2cd61ba20499165044ed40ffbf8d51

          SHA256

          d4dbd5d8e591015137ebce3953785e250514776d223d7a553b66c304e286eaf9

          SHA512

          4916ad444160d5b59b4aaff6e7b6fc450f61f52465b17bb9d6dc350ea20a8ffdbd4fed60b92ed8b4aba6331dc5e9a2e598f58225c94191f172db73aa243c4f87

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

          Filesize

          136B

          MD5

          f8f86616efc72d234ba8af89bd58792b

          SHA1

          6820673fe26cdaf5e919e46222182084cfcbacec

          SHA256

          5eb4b0e622762c487e51b71348e860aa9a34679232cbd13c0b8b34c0678c760f

          SHA512

          cb98ac5e301100e8b2a5dc3112e53472969e673a8f4e6ed83fe2db84a7458b6fa54818a13f0d379223a26ca0d5888d64405fbe7fc485a54e06e6a3ba77281f74

        • C:\Users\Admin\AppData\Local\Temp\44671715396549.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

          51d18d73604a5640a46f863934eda339

          SHA1

          2beb7f1ffba7d190fdec30b73f63238ecff49713

          SHA256

          72dc46796533437fe03169a80fe92bc844e9908cbbf0bafe29e6cecff76fca58

          SHA512

          418ed9293f16c380f5e76d1820955d9d7af75964062821affe4f1fc9b5cacdee8b031baa3a5324ae950bf392a203cb68459938f1d49d5894945cef03cdc8a580

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

          Filesize

          42KB

          MD5

          980b08bac152aff3f9b0136b616affa5

          SHA1

          2a9c9601ea038f790cc29379c79407356a3d25a3

          SHA256

          402046ada270528c9ac38bbfa0152836fe30fb8e12192354e53b8397421430d9

          SHA512

          100cda1f795781042b012498afd783fd6ff03b0068dbd07b2c2e163cd95e6c6e00755ce16b02b017693c9febc149ed02df9df9b607e2b9cca4b07e5bd420f496

        • C:\Users\Admin\Documents\!Please Read Me!.txt

          Filesize

          797B

          MD5

          afa18cf4aa2660392111763fb93a8c3d

          SHA1

          c219a3654a5f41ce535a09f2a188a464c3f5baf5

          SHA256

          227082c719fd4394c1f2311a0877d8a302c5b092bcc49f853a5cf3d2945f42b0

          SHA512

          4161f250d59b7d4d4a6c4f16639d66d21b2a9606de956d22ec00bedb006643fedbbb8e4cde9f6c0c977285918648314883ca91f3442d1125593bf2605f2d5c6b

        • memory/2488-7-0x0000000010000000-0x0000000010012000-memory.dmp

          Filesize

          72KB