Analysis

  • max time kernel
    149s
  • max time network
    118s
  • platform
    windows7_x64
  • resource
    win7-20231129-en
  • resource tags

    arch:x64arch:x86image:win7-20231129-enlocale:en-usos:windows7-x64system
  • submitted
    11/05/2024, 03:03

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:2884
    • C:\Windows\SysWOW64\cmd.exe
      cmd /c 195091715396611.bat
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:2140
      • C:\Windows\SysWOW64\cscript.exe
        cscript //nologo c.vbs
        3⤵
        • Loads dropped DLL
        PID:2584
    • C:\Users\Admin\AppData\Local\Temp\!WannaDecryptor!.exe
      !WannaDecryptor!.exe f
      2⤵
      • Executes dropped EXE
      • Suspicious use of SetWindowsHookEx
      PID:2800
    • C:\Windows\SysWOW64\taskkill.exe
      taskkill /f /im MSExchange*
      2⤵
      • Kills process with taskkill
      • Suspicious use of AdjustPrivilegeToken
      PID:2912
    • C:\Windows\SysWOW64\taskkill.exe
      taskkill /f /im Microsoft.Exchange.*
      2⤵
      • Kills process with taskkill
      • Suspicious use of AdjustPrivilegeToken
      PID:2940
    • C:\Windows\SysWOW64\taskkill.exe
      taskkill /f /im sqlserver.exe
      2⤵
      • Kills process with taskkill
      • Suspicious use of AdjustPrivilegeToken
      PID:1256
    • C:\Windows\SysWOW64\taskkill.exe
      taskkill /f /im sqlwriter.exe
      2⤵
      • Kills process with taskkill
      • Suspicious use of AdjustPrivilegeToken
      PID:1436
    • C:\Users\Admin\AppData\Local\Temp\!WannaDecryptor!.exe
      !WannaDecryptor!.exe c
      2⤵
      • Executes dropped EXE
      • Suspicious use of SetWindowsHookEx
      PID:1012
    • C:\Windows\SysWOW64\cmd.exe
      cmd.exe /c start /b !WannaDecryptor!.exe v
      2⤵
      • Loads dropped DLL
      • Suspicious use of WriteProcessMemory
      PID:684
      • C:\Users\Admin\AppData\Local\Temp\!WannaDecryptor!.exe
        !WannaDecryptor!.exe v
        3⤵
        • Executes dropped EXE
        • Suspicious use of SetWindowsHookEx
        • Suspicious use of WriteProcessMemory
        PID:2080
        • 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:284
          • C:\Windows\SysWOW64\vssadmin.exe
            vssadmin delete shadows /all /quiet
            5⤵
            • Interacts with shadow copies
            PID:1684
          • C:\Windows\SysWOW64\Wbem\WMIC.exe
            wmic shadowcopy delete
            5⤵
            • Suspicious use of AdjustPrivilegeToken
            PID:2940
    • 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:688
  • C:\Windows\system32\vssvc.exe
    C:\Windows\system32\vssvc.exe
    1⤵
    • Suspicious use of AdjustPrivilegeToken
    PID:2456

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

          5e9e56d81066f89d8599dc328a25c9d7

          SHA1

          068320841a022341488c1190a40376c7fd535a89

          SHA256

          a81a2447642e0a16e29cab992c46e32dfdd0908f75238004b5108f303b7e2403

          SHA512

          e1289c165965cc87d8f10b4db787ab99c232fe71aa6bc7487f5f97dae934fe6b0f017ebdcc98f11a7fbc467f1ea44805bb458f2c39f03dc6d6b7349d163ccb5b

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

          Filesize

          136B

          MD5

          c6d28321b547ff52f1957f6943952b26

          SHA1

          071180e242b5fe35e285ccfe1d9614ebb0555cb1

          SHA256

          5d4cdd786c08a0ce91130bf213f5d9a98b1c23f2563133e62cf7f15f68a02f0f

          SHA512

          142bbfcbf3c860d73b466c11bce8f0f534af39039d3300b962e270cd6239de243d5abf69951dd3a83f4b99c523d558ee450cd77e1c1220a35f7f7256f7779cae

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

          Filesize

          136B

          MD5

          21120e2a2ecc944f4ce80b22ed74701f

          SHA1

          030684104d4501f2384034331684d6c51614d0fa

          SHA256

          7060713ea5e385616aec667bf07abcc7eadcd08e61a533f3ad1df8704b735e49

          SHA512

          dbff8a66f57e2df4200d80d3fd9339edd07dd6b1cb3edee8bda63f8247c948b605a97c924041e29ab6aa2b2f641c6e3fcaba2300bc092f1a4648c91b137f1f4a

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

          Filesize

          136B

          MD5

          2525182984fa71a9b6cd3244beb863fd

          SHA1

          7a512ab2bf5fb0e61687e5952d5082dbee98a452

          SHA256

          d56905dbef33ba73c5b5816ec771ecd482ff6ea0921e7516a83036fcb610460c

          SHA512

          a7873e1e92629700494a6bab8338a20641d817d394509ce825361f71144970835927fea7d319f59fe1b2749a7c40d851d6a641a31fa9d346cd455c0ad2fc5d93

        • C:\Users\Admin\AppData\Local\Temp\195091715396611.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

          5a10000325c5e045c67db8395ec4eedd

          SHA1

          4e890a05f36e71473df3586b5ed0e37f47356365

          SHA256

          6114848447df3275db57be5a283cb8a69bb22596888b9d36680fa1ffd6ca60f8

          SHA512

          94692e6948491eb53f7a70f45e8d357bc392ddaa66b9a12a2e3d2ec5c8d6e5204415e37d651dd3188e75251fc70d1af20137074b48fca76c9e5aab57957a5c8c

        • 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/2884-6-0x0000000010000000-0x0000000010012000-memory.dmp

          Filesize

          72KB