Resubmissions

07-11-2024 03:32

241107-d3s5msvenp 10

10-09-2024 02:24

240910-cvpa2stgle 10

Analysis

  • max time kernel
    149s
  • max time network
    154s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    07-11-2024 03:32

General

  • Target

    yourmom.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
  • Drops file in Windows directory 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
  • Modifies registry class 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 49 IoCs
  • Suspicious use of FindShellTrayWindow 1 IoCs
  • Suspicious use of SetWindowsHookEx 13 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\yourmom.exe
    "C:\Users\Admin\AppData\Local\Temp\yourmom.exe"
    1⤵
    • Drops startup file
    • Adds Run key to start application
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:2308
    • C:\Windows\SysWOW64\cmd.exe
      C:\Windows\system32\cmd.exe /c 274001730950358.bat
      2⤵
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:5108
      • C:\Windows\SysWOW64\cscript.exe
        cscript //nologo c.vbs
        3⤵
        • System Location Discovery: System Language Discovery
        PID:4924
    • 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:228
    • 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:4820
    • 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:4780
    • 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:2168
    • 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:1076
    • 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:4308
    • 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:4084
      • 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:4820
        • 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:4488
          • C:\Windows\SysWOW64\Wbem\WMIC.exe
            wmic shadowcopy delete
            5⤵
            • System Location Discovery: System Language Discovery
            • Suspicious use of AdjustPrivilegeToken
            PID:328
    • 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 use of FindShellTrayWindow
      • Suspicious use of SetWindowsHookEx
      PID:1316
  • C:\Windows\system32\vssvc.exe
    C:\Windows\system32\vssvc.exe
    1⤵
    • Suspicious use of AdjustPrivilegeToken
    PID:1252
  • C:\Windows\system32\OpenWith.exe
    C:\Windows\system32\OpenWith.exe -Embedding
    1⤵
    • Modifies registry class
    • Suspicious use of SetWindowsHookEx
    PID:3504
  • C:\Windows\system32\mspaint.exe
    "C:\Windows\system32\mspaint.exe"
    1⤵
    • Drops file in Windows directory
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of SetWindowsHookEx
    PID:4420
  • C:\Windows\system32\svchost.exe
    C:\Windows\system32\svchost.exe -k LocalSystemNetworkRestricted -p -s DeviceAssociationService
    1⤵
      PID:4448

    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

      c5a8d74634bdf5dc9d54fb03dfb8bf42

      SHA1

      4908d4e9af75f8dee0af6bcb9082a97678f7223e

      SHA256

      4fb2db17c07647f24c7f27a872261fd3b8575e0003adf83041908d0379ad049c

      SHA512

      7dbacf271b3c925d8ca4d0f0f31a0929f80c822732ae921623477455bcecf346aac4bf5a77f7a8e044fdec4b4b26ebd9d656eee45be1f991c7c6d58fac5b1f4d

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

      Filesize

      136B

      MD5

      7c176385d46f5191247b739218919074

      SHA1

      f6c9ac4d7420d9b8041ff270fe06c442a66bdf13

      SHA256

      e0e2ee938fa578550d3e1de34f22b0ba1377a06a5c5427b18e31af3e2ae9588a

      SHA512

      630168ce41e08fba97885cd08628d006b9de92d36752212396d4d488d3267cae11e6a1bf81a05e5aa4deef5707b26886829688054f3aa9047dc5d907199faff4

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

      Filesize

      136B

      MD5

      eaf8f4a28bb6e1d133e12bbdba745f78

      SHA1

      3db3713df2006e3c7c9c7e98c8034b524e9fb533

      SHA256

      3cc688440a642d4d4fc61cd0c92600ea992e07c195e4833302978d239d788807

      SHA512

      aa1567ce5e80f7cce32ab9dda919002acf9343fbe3b6053586274252e79199d0c81c35de57479ecaf770d44b7cb43104e0fa0c337e71f2d56fd0221da9df0790

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

      Filesize

      136B

      MD5

      ec5d577b693db838db8e5a5522bc224c

      SHA1

      a26ae89f1670c94aa6cadac0a0f1d8cc81cc1d75

      SHA256

      eedb9b5a973d2ad5a0118f91c308ea124463e7b384913a5d66bc1b14aff868cc

      SHA512

      3e87c57a0282dcf1333eb98d42c8b6efc39b7670df48c2d29b8549646e7dd6fd36a933fe92b543596973be38b772e79aa0fbb6efdb0d89957a302472f27d8f2f

    • C:\Users\Admin\AppData\Local\Temp\274001730950358.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

      f992a279e38613f08d3a0a965a0124d0

      SHA1

      ee127ef234f39d102315259027c3edb6b638b156

      SHA256

      739f1fc5423400cd6dee46b81dbef54dbf556836d9047126a80a6dbbd9c3f985

      SHA512

      963d84f40c2e0205222adcb4921270a68715c5198e09ae147e862d607b90d577ecd59b559739ba7e7355193ace61f3bb76908b00e27b2908837d61ca69d08f7c

    • 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/2308-7-0x0000000010000000-0x0000000010012000-memory.dmp

      Filesize

      72KB