Analysis

  • max time kernel
    16s
  • max time network
    16s
  • platform
    windows7_x64
  • resource
    win7-20240729-en
  • resource tags

    arch:x64arch:x86image:win7-20240729-enlocale:en-usos:windows7-x64system
  • submitted
    07-12-2024 15:29

General

  • Target

    2024-12-07_111fc4f48385771ba64e3ddeed0641e9_destroyer_wannacry.exe

  • Size

    59KB

  • MD5

    111fc4f48385771ba64e3ddeed0641e9

  • SHA1

    9506687750996fda9d36b492dba8727779c37f18

  • SHA256

    42930c48079c620a1b0a2353e1456748b544c1f2d3a389bbca8539dec227b559

  • SHA512

    469d74b56270d10f623cb60a00553b6819dcd778977cff97801d35e4ca85fca1da0f4cd5a8de73ce5888adf52d4d7114b36d94e7b0076c92886b40e9c8680e2f

  • SSDEEP

    1536:QNNma7BSijq9anZCIjxiCG6q86fO+HVwa/eW/oXEat:qmEjq9sc6ACt62+HDWXV

Malware Config

Extracted

Path

C:\Users\Admin\AppData\Local\Google\Chrome\User Data\read_it.txt

Ransom Note
Don't worry, you can return all your files! All your files like documents, photos, databases and other important are encrypted What guarantees do we give to you? You can send 3 of your encrypted files and we decrypt it for free. You must follow these steps To decrypt your files : 1) Write on our e-mail :[email protected] ( In case of no answer in 24 hours check your spam folder or write us to this e-mail: [email protected]. 2) Obtain Bitcoin (You have to pay for decryption in Bitcoins. After payment we will send you the tool that will decrypt all your files.)

Signatures

  • Chaos

    Ransomware family first seen in June 2021.

  • Chaos Ransomware 3 IoCs
  • Chaos family
  • Deletes shadow copies 3 TTPs

    Ransomware often targets backup files to inhibit system recovery.

  • Modifies boot configuration data using bcdedit 1 TTPs 2 IoCs
  • Deletes backup catalog 3 TTPs 1 IoCs

    Uses wbadmin.exe to inhibit system recovery.

  • Disables Task Manager via registry modification
  • Drops startup file 2 IoCs
  • Executes dropped EXE 1 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
  • Drops desktop.ini file(s) 64 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).

  • Interacts with shadow copies 3 TTPs 1 IoCs

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

  • Opens file in notepad (likely ransom note) 1 IoCs
  • Suspicious behavior: AddClipboardFormatListener 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 6 IoCs
  • Suspicious use of AdjustPrivilegeToken 48 IoCs
  • Suspicious use of WriteProcessMemory 30 IoCs
  • Uses Task Scheduler COM API 1 TTPs

    The Task Scheduler COM API can be used to schedule applications to run on boot or at set times.

  • 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\2024-12-07_111fc4f48385771ba64e3ddeed0641e9_destroyer_wannacry.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-12-07_111fc4f48385771ba64e3ddeed0641e9_destroyer_wannacry.exe"
    1⤵
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2464
    • C:\Users\Admin\AppData\Roaming\svchost.exe
      "C:\Users\Admin\AppData\Roaming\svchost.exe"
      2⤵
      • Drops startup file
      • Executes dropped EXE
      • Adds Run key to start application
      • Drops desktop.ini file(s)
      • Sets desktop wallpaper using registry
      • Suspicious behavior: AddClipboardFormatListener
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:1780
      • C:\Windows\System32\cmd.exe
        "C:\Windows\System32\cmd.exe" /C vssadmin delete shadows /all /quiet & wmic shadowcopy delete
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:2812
        • C:\Windows\system32\vssadmin.exe
          vssadmin delete shadows /all /quiet
          4⤵
          • Interacts with shadow copies
          PID:2668
        • C:\Windows\System32\Wbem\WMIC.exe
          wmic shadowcopy delete
          4⤵
          • Suspicious use of AdjustPrivilegeToken
          PID:2752
      • C:\Windows\System32\cmd.exe
        "C:\Windows\System32\cmd.exe" /C bcdedit /set {default} bootstatuspolicy ignoreallfailures & bcdedit /set {default} recoveryenabled no
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:2272
        • C:\Windows\system32\bcdedit.exe
          bcdedit /set {default} bootstatuspolicy ignoreallfailures
          4⤵
          • Modifies boot configuration data using bcdedit
          PID:2500
        • C:\Windows\system32\bcdedit.exe
          bcdedit /set {default} recoveryenabled no
          4⤵
          • Modifies boot configuration data using bcdedit
          PID:2492
      • C:\Windows\System32\cmd.exe
        "C:\Windows\System32\cmd.exe" /C wbadmin delete catalog -quiet
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:1376
        • C:\Windows\system32\wbadmin.exe
          wbadmin delete catalog -quiet
          4⤵
          • Deletes backup catalog
          PID:2320
      • C:\Windows\system32\NOTEPAD.EXE
        "C:\Windows\system32\NOTEPAD.EXE" C:\Users\Admin\AppData\Roaming\read_it.txt
        3⤵
        • Opens file in notepad (likely ransom note)
        PID:2164
  • C:\Windows\system32\vssvc.exe
    C:\Windows\system32\vssvc.exe
    1⤵
    • Suspicious use of AdjustPrivilegeToken
    PID:2780
  • C:\Windows\system32\wbengine.exe
    "C:\Windows\system32\wbengine.exe"
    1⤵
    • Suspicious use of AdjustPrivilegeToken
    PID:2932
  • C:\Windows\System32\vdsldr.exe
    C:\Windows\System32\vdsldr.exe -Embedding
    1⤵
      PID:2208
    • C:\Windows\System32\vds.exe
      C:\Windows\System32\vds.exe
      1⤵
        PID:2204

      Network

      MITRE ATT&CK Enterprise v15

      Replay Monitor

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      Downloads

      • C:\Users\Admin\AppData\Local\Google\Chrome\User Data\read_it.txt

        Filesize

        582B

        MD5

        4a75d8cf60e8160c72d6a62965720802

        SHA1

        0ef888f515c5bee4ecfda7d9872c725d26a4b75b

        SHA256

        daa102e1cd00e0998749fabb3bdd8078940763a465757ca40b490874a96fd007

        SHA512

        5578da00e3ea355b1be3f915dbb1e1e2e1fe4d502540ae7ccb0e739beb4dc9dbbc3c8dddaad5150ff339db1580c20898dda87afeb653544c9bbcc6e35200b53d

      • C:\Users\Admin\AppData\Roaming\svchost.exe

        Filesize

        59KB

        MD5

        111fc4f48385771ba64e3ddeed0641e9

        SHA1

        9506687750996fda9d36b492dba8727779c37f18

        SHA256

        42930c48079c620a1b0a2353e1456748b544c1f2d3a389bbca8539dec227b559

        SHA512

        469d74b56270d10f623cb60a00553b6819dcd778977cff97801d35e4ca85fca1da0f4cd5a8de73ce5888adf52d4d7114b36d94e7b0076c92886b40e9c8680e2f

      • C:\Users\Admin\Desktop\CopyMount.ini

        Filesize

        1B

        MD5

        d1457b72c3fb323a2671125aef3eab5d

        SHA1

        5bab61eb53176449e25c2c82f172b82cb13ffb9d

        SHA256

        8a8de823d5ed3e12746a62ef169bcf372be0ca44f0a1236abc35df05d96928e1

        SHA512

        ca63c07ad35d8c9fb0c92d6146759b122d4ec5d3f67ebe2f30ddb69f9e6c9fd3bf31a5e408b08f1d4d9cd68120cced9e57f010bef3cde97653fed5470da7d1a0

      • memory/1780-8-0x0000000000A50000-0x0000000000A66000-memory.dmp

        Filesize

        88KB

      • memory/1780-9-0x000007FEF5AF0000-0x000007FEF64DC000-memory.dmp

        Filesize

        9.9MB

      • memory/1780-10-0x000007FEF5AF0000-0x000007FEF64DC000-memory.dmp

        Filesize

        9.9MB

      • memory/1780-945-0x000007FEF5AF0000-0x000007FEF64DC000-memory.dmp

        Filesize

        9.9MB

      • memory/2464-0-0x000007FEF5AF3000-0x000007FEF5AF4000-memory.dmp

        Filesize

        4KB

      • memory/2464-1-0x00000000013E0000-0x00000000013F6000-memory.dmp

        Filesize

        88KB

      • memory/2464-4-0x000007FEF5AF0000-0x000007FEF64DC000-memory.dmp

        Filesize

        9.9MB

      • memory/2464-11-0x000007FEF5AF0000-0x000007FEF64DC000-memory.dmp

        Filesize

        9.9MB