Analysis

  • max time kernel
    147s
  • max time network
    93s
  • platform
    windows11-21h2_x64
  • resource
    win11-20241007-en
  • resource tags

    arch:x64arch:x86image:win11-20241007-enlocale:en-usos:windows11-21h2-x64system
  • submitted
    12-01-2025 03:15

General

  • Target

    WannaCry.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.

  • Wannacry family
  • 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 3 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).

  • System Location Discovery: System Language Discovery 1 TTPs 14 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • Kills process with taskkill 4 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 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\WannaCry.exe
    "C:\Users\Admin\AppData\Local\Temp\WannaCry.exe"
    1⤵
    • Drops startup file
    • Adds Run key to start application
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:1460
    • C:\Windows\SysWOW64\cmd.exe
      C:\Windows\system32\cmd.exe /c 316351736651752.bat
      2⤵
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:1828
      • C:\Windows\SysWOW64\cscript.exe
        cscript //nologo c.vbs
        3⤵
        • System Location Discovery: System Language Discovery
        PID:1580
    • C:\Users\Admin\AppData\Local\Temp\!WannaDecryptor!.exe
      !WannaDecryptor!.exe f
      2⤵
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      • Suspicious use of SetWindowsHookEx
      PID:4152
    • C:\Windows\SysWOW64\taskkill.exe
      taskkill /f /im MSExchange*
      2⤵
      • System Location Discovery: System Language Discovery
      • Kills process with taskkill
      • Suspicious use of AdjustPrivilegeToken
      PID:1328
    • C:\Windows\SysWOW64\taskkill.exe
      taskkill /f /im Microsoft.Exchange.*
      2⤵
      • System Location Discovery: System Language Discovery
      • Kills process with taskkill
      • Suspicious use of AdjustPrivilegeToken
      PID:2172
    • C:\Windows\SysWOW64\taskkill.exe
      taskkill /f /im sqlserver.exe
      2⤵
      • System Location Discovery: System Language Discovery
      • Kills process with taskkill
      • Suspicious use of AdjustPrivilegeToken
      PID:4568
    • C:\Windows\SysWOW64\taskkill.exe
      taskkill /f /im sqlwriter.exe
      2⤵
      • System Location Discovery: System Language Discovery
      • Kills process with taskkill
      • Suspicious use of AdjustPrivilegeToken
      PID:3116
    • C:\Users\Admin\AppData\Local\Temp\!WannaDecryptor!.exe
      !WannaDecryptor!.exe c
      2⤵
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      • Suspicious use of SetWindowsHookEx
      PID:1752
    • C:\Windows\SysWOW64\cmd.exe
      cmd.exe /c start /b !WannaDecryptor!.exe v
      2⤵
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:4468
      • C:\Users\Admin\AppData\Local\Temp\!WannaDecryptor!.exe
        !WannaDecryptor!.exe v
        3⤵
        • Executes dropped EXE
        • System Location Discovery: System Language Discovery
        • Suspicious use of SetWindowsHookEx
        • Suspicious use of WriteProcessMemory
        PID:3988
        • 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⤵
          • System Location Discovery: System Language Discovery
          • Suspicious use of WriteProcessMemory
          PID:2904
          • C:\Windows\SysWOW64\Wbem\WMIC.exe
            wmic shadowcopy delete
            5⤵
            • System Location Discovery: System Language Discovery
            • Suspicious use of AdjustPrivilegeToken
            PID:1096
    • C:\Users\Admin\AppData\Local\Temp\!WannaDecryptor!.exe
      !WannaDecryptor!.exe
      2⤵
      • Executes dropped EXE
      • Sets desktop wallpaper using registry
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: GetForegroundWindowSpam
      • Suspicious use of SetWindowsHookEx
      PID:4052
  • C:\Windows\system32\svchost.exe
    C:\Windows\system32\svchost.exe -k LocalService -p -s NPSMSvc
    1⤵
      PID:4836
    • C:\Windows\system32\vssvc.exe
      C:\Windows\system32\vssvc.exe
      1⤵
      • Suspicious use of AdjustPrivilegeToken
      PID:4704

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

    Loading Replay Monitor...

    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

      802bb89e6d6bc3935d2a507cbe30ff6a

      SHA1

      bee126d1516f72de47464c103a5fe2d0a84684f5

      SHA256

      e2ebaf064c9b7f9fa783ee23166203a37a669cc1f18b71c1767fa5b04a91955a

      SHA512

      6c7b00d7a3d2c6caa1f8748bf08ea481a2acbfb514efa6b2fe755a929e946eb278d34576c30c9d2f31821bed5ce3cc3749ee4f02335be92865c7132e87a20bea

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

      Filesize

      1KB

      MD5

      5d5bc6780a185ad729b3c55c6e2b9e4f

      SHA1

      26ec5049f558e02179b0feed63d2abf948e72c6e

      SHA256

      f428bdb9ef928cf261cfd92d9d30fbd29b841850a8d659d1c8fa720a6ca7bdc8

      SHA512

      6209c9f2866f11b24cd4cefda5cfe00de2f4af150c873fd9fefdd30df772389fba2ccd8fb8076f3141a4c5053e0785e6943fdd56ebae0b7267de95e332c1ae7f

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

      Filesize

      136B

      MD5

      9d19345d81b4a685f234929de7e7e877

      SHA1

      e88f0a9b44c3b3d03d812669713527bb2eaf4422

      SHA256

      9cd006cc6b5165d1a73f5e30450877a078b59f02d09956c4a317e138f6a03668

      SHA512

      a5b71fd294023f8f15ca40361656f1147988fe2b1b95919774e7f42399e3360ed83c0756efaf531cb4233d2d30ef6c4cbc2bf909d56e18076fdd23dee661a984

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

      Filesize

      136B

      MD5

      7cc525ab49c859e16f81542e92d9e87e

      SHA1

      647a317da807a44e41a7b219d58bce40cecc699a

      SHA256

      ddfd93e90f48bd2885c82060e1098ae4aa3bba7b582d60df912add1890beec44

      SHA512

      40d19649e4635bdfc10197dc5d16693e2f0e2b973708660d6ada1dd6e08131e1bb2bcc19e6793baaa5a27b0cca9ecfe3dccfd4e0577f0be39c34447ad1eed470

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

      Filesize

      136B

      MD5

      9ac9bdf69e9d361d262b7770079fffb3

      SHA1

      5580fe07100f031a1e48c9e7dfd586159c24285b

      SHA256

      167f6763e53fe39722a84563d930d8b3ae0a37968890165c8975ad0843117098

      SHA512

      29ebe60645f6aa604401e4a78ef6427a77adc9f6438eb5e9775ed09ad54d289885ae97a25f7b1a8059d67830043554507b49174e07806a70d835bf4bff48dac5

    • C:\Users\Admin\AppData\Local\Temp\316351736651752.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

      1164494e39f86e31b49add31468ebdc9

      SHA1

      6de554672c608696318197a7bb8778bfc46d557a

      SHA256

      a65e3335c0286232f0477d568e67387002d225d93a978be4d8d88e6a6117b64e

      SHA512

      b542eaff96e3cbf2e8be9a0a27da80e12ae5400d89ea8fd13114d8b724c2ba2bb8aa599a4740d65fc5110d279e42232d1ed02f4d8a3fb4399715d9e084a8ffa1

    • 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/1460-7-0x0000000010000000-0x0000000010012000-memory.dmp

      Filesize

      72KB