Analysis

  • max time kernel
    146s
  • max time network
    96s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240508-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system
  • submitted
    11-05-2024 03:08

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 6 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:1328
    • C:\Windows\SysWOW64\cmd.exe
      C:\Windows\system32\cmd.exe /c 235841715396911.bat
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:4820
      • C:\Windows\SysWOW64\cscript.exe
        cscript //nologo c.vbs
        3⤵
          PID:1812
      • C:\Users\Admin\AppData\Local\Temp\!WannaDecryptor!.exe
        !WannaDecryptor!.exe f
        2⤵
        • Executes dropped EXE
        • Suspicious use of SetWindowsHookEx
        PID:1692
      • C:\Windows\SysWOW64\taskkill.exe
        taskkill /f /im MSExchange*
        2⤵
        • Kills process with taskkill
        • Suspicious use of AdjustPrivilegeToken
        PID:1568
      • C:\Windows\SysWOW64\taskkill.exe
        taskkill /f /im Microsoft.Exchange.*
        2⤵
        • Kills process with taskkill
        • Suspicious use of AdjustPrivilegeToken
        PID:964
      • C:\Windows\SysWOW64\taskkill.exe
        taskkill /f /im sqlserver.exe
        2⤵
        • Kills process with taskkill
        • Suspicious use of AdjustPrivilegeToken
        PID:3484
      • C:\Windows\SysWOW64\taskkill.exe
        taskkill /f /im sqlwriter.exe
        2⤵
        • Kills process with taskkill
        • Suspicious use of AdjustPrivilegeToken
        PID:1044
      • C:\Users\Admin\AppData\Local\Temp\!WannaDecryptor!.exe
        !WannaDecryptor!.exe c
        2⤵
        • Executes dropped EXE
        • Suspicious use of SetWindowsHookEx
        PID:2864
      • C:\Windows\SysWOW64\cmd.exe
        cmd.exe /c start /b !WannaDecryptor!.exe v
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:3192
        • C:\Users\Admin\AppData\Local\Temp\!WannaDecryptor!.exe
          !WannaDecryptor!.exe v
          3⤵
          • Executes dropped EXE
          • Suspicious use of SetWindowsHookEx
          • Suspicious use of WriteProcessMemory
          PID:4616
          • 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:996
            • C:\Windows\SysWOW64\Wbem\WMIC.exe
              wmic shadowcopy delete
              5⤵
              • Suspicious use of AdjustPrivilegeToken
              PID:2748
      • C:\Users\Admin\AppData\Local\Temp\!WannaDecryptor!.exe
        !WannaDecryptor!.exe
        2⤵
        • Executes dropped EXE
        • Sets desktop wallpaper using registry
        PID:3400
    • C:\Windows\system32\vssvc.exe
      C:\Windows\system32\vssvc.exe
      1⤵
      • Suspicious use of AdjustPrivilegeToken
      PID:1940

    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

      7a3fe6c99152dd214f36be44c359f70a

      SHA1

      e447f24cdf5779fab67057d8f9c7c1fdb6810a6a

      SHA256

      29b5039d3a442df1dd4ddb0892ba1ec0b5e392ec889c6c5d50abb7016bee4ae3

      SHA512

      e891f30db2c4e6fc0cffeed980b83bfd37a89b869cf76da1d4f7eece83734b54f6851dc0bc9d06559b0ff0334d52bdfbc3ec6f1bfdd79fde7732c11f42cc3c29

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

      136B

      MD5

      b5b77b3871fede43eb645798e425eee6

      SHA1

      8381fca08487a5c46f1948f0c35a4faa987f23e4

      SHA256

      a157826173b4a1f21d8c0e192e6b6c31b35706bcb441886a0d53bdb42d878ec6

      SHA512

      40515da5f602639c87dfea0680d26c4e835241204c066afd409049f0c75ec93adbcdd173738ee403aecb79d123fd48d2d0aa652a8b53a0457661c4d92298cf04

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

      136B

      MD5

      e2b2cacaa3589d7ced0bb8411dc06640

      SHA1

      abe58e48eb853efd458556b1fedbf6057e3810ec

      SHA256

      6815e9b3c6fb7dbaec3bbbcf4ba2aacbbca6ccb0995cc167efb5395f8bf1a269

      SHA512

      9f4c1b796b7ea58aaefe3c03ac798d6e7a3fdda2f17177e9121d0ee9f818233df85dd03174571d67b44934d2d3778fa5b2c085b16b321b53a7caab1378580967

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

      136B

      MD5

      46a9bddf83368ef8a6dec5e080aab4d2

      SHA1

      2ed587fea24f80d2341780653578c996d383ceab

      SHA256

      11a50dbaea45ff04ec9dde222fa6cd203365f211e988c329d94bab30cfd43a0e

      SHA512

      1c6dea6814e902ab3192db07757d19858c834e6a4d1fbc8dd86327fe849dc005f68fcbed62da43101370e411d9ed1efdc17b2f7e92c80fd9725353a26acab8a2

    • C:\Users\Admin\AppData\Local\Temp\235841715396911.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

      2e1c4407dfdd7adecdf685890c61f489

      SHA1

      244222c9f97cc98fe9a512d91dd5ad2b9243e5d3

      SHA256

      5daa28f5667f9fbc51a52ef45ab24e10960f2b60d641e8454c16e2657d1d557f

      SHA512

      54e26b22ee51978eecc7fb140b777eba3d3d0a3db9ca71308c027f80d162c79d3c701e4ff03c3702c67bcb4cff283a68a9856ab9cb0ada748d94f2eb529ddf8d

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

      628B

      MD5

      663e55df21852bc8870b86bc38e58262

      SHA1

      1c691bf030ecfce78a9476fbdef3afe61724e6a9

      SHA256

      bf22e8e18db1638673f47591a13d18ee58d8c6019314bab5a90be82ae3dc9538

      SHA512

      6a54be1fa549633a2fd888c559207437b8f6efda98bb18d491c8749f39e9754f1e680fa8e2d623777b5f665b2c04d19385c75ce4e61fb251db16018963a9a6f9

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

      236KB

      MD5

      cf1416074cd7791ab80a18f9e7e219d9

      SHA1

      276d2ec82c518d887a8a3608e51c56fa28716ded

      SHA256

      78e3f87f31688355c0f398317b2d87d803bd87ee3656c5a7c80f0561ec8606df

      SHA512

      0bb0843a90edacaf1407e6a7273a9fbb896701635e4d9467392b7350ad25a1bec0c1ceef36737b4af5e5841936f4891436eded0533aa3d74c9a54efa42f024c5

    • memory/1328-6-0x0000000010000000-0x0000000010012000-memory.dmp
      Filesize

      72KB

    • memory/3400-1485-0x0000000002B70000-0x0000000002C4B000-memory.dmp
      Filesize

      876KB