Analysis

  • max time kernel
    142s
  • max time network
    152s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240226-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
  • submitted
    28-04-2024 16:24

General

  • Target

    2024-04-28_0d74b1b35a300a46c077a159c9bb1f54_chaos_destroyer_wannacry.exe

  • Size

    28KB

  • MD5

    0d74b1b35a300a46c077a159c9bb1f54

  • SHA1

    cf866b0dd5eed866cee681a61dcad1d2a2b868e9

  • SHA256

    ae0f395572e1922d28a526075665b5be9cf619044348fe9058569f9dd94f52c9

  • SHA512

    dd0487163c66c7f8ddc7d36191abed25e1f4163852c72cecd506dafc16f7ccd4947f79f4dff006773cc11076b46d22cdb1de776f8b637ad60918135b2ef0a8cd

  • SSDEEP

    768:dn3kIompLNMfKXROor9inlucg+wiNzGp5ek:t3kI/OIEor9inVg+Zk

Malware Config

Extracted

Path

C:\Users\Admin\Desktop\important.txt

Ransom Note
All of your files have been encrypted Your computer was infected with a ransomware virus. Your files have been encrypted and you won't be able to decrypt them without our help.What can I do to get my files back?You can buy our special decryption software, this software will allow you to recover all of your data and remove the ransomware from your computer.The price for the software is $1,500. Payment can be made in Bitcoin only. We also have all your passwords and cookies so you cannot escape. How do I pay, where do I get Bitcoin? Purchasing Bitcoin varies from country to country, you are best advised to do a quick google search yourself to find out how to buy Bitcoin. Many of our customers have reported these sites to be fast and reliable: Coinmama - https://www.coinmama.com Bitpanda - https://www.bitpanda.com Payment informationAmount: 0.0079 BTC Bitcoin Address: 3Gq3M3xz5dstUaCn7iLLxLRTBMs3BLKwPn
Wallets

3Gq3M3xz5dstUaCn7iLLxLRTBMs3BLKwPn

URLs

https://www.coinmama.com

https://www.bitpanda.com

Signatures

  • Chaos

    Ransomware family first seen in June 2021.

  • Chaos Ransomware 2 IoCs
  • Deletes shadow copies 2 TTPs

    Ransomware often targets backup files to inhibit system recovery.

  • Detects command variations typically used by ransomware 2 IoCs
  • Modifies boot configuration data using bcdedit 1 TTPs 2 IoCs
  • Deletes backup catalog 3 TTPs 1 IoCs

    Uses wbadmin.exe to inhibit system recovery.

  • Checks computer location settings 2 TTPs 2 IoCs

    Looks up country code configured in the registry, likely geofence.

  • Drops startup file 3 IoCs
  • Executes dropped EXE 1 IoCs
  • Reads user/profile data of web browsers 2 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

  • Drops desktop.ini file(s) 34 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).

  • Checks SCSI registry key(s) 3 TTPs 4 IoCs

    SCSI information is often read in order to detect sandboxing environments.

  • Interacts with shadow copies 2 TTPs 1 IoCs

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

  • Modifies registry class 1 IoCs
  • Opens file in notepad (likely ransom note) 1 IoCs
  • Suspicious behavior: AddClipboardFormatListener 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 50 IoCs
  • Suspicious use of AdjustPrivilegeToken 50 IoCs
  • Suspicious use of WriteProcessMemory 20 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\2024-04-28_0d74b1b35a300a46c077a159c9bb1f54_chaos_destroyer_wannacry.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-04-28_0d74b1b35a300a46c077a159c9bb1f54_chaos_destroyer_wannacry.exe"
    1⤵
    • Checks computer location settings
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2468
    • C:\Users\Admin\AppData\Roaming\svchost.exe
      "C:\Users\Admin\AppData\Roaming\svchost.exe"
      2⤵
      • Checks computer location settings
      • Drops startup file
      • Executes dropped EXE
      • Drops desktop.ini file(s)
      • Sets desktop wallpaper using registry
      • Modifies registry class
      • Suspicious behavior: AddClipboardFormatListener
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:1712
      • 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:3388
        • C:\Windows\system32\vssadmin.exe
          vssadmin delete shadows /all /quiet
          4⤵
          • Interacts with shadow copies
          PID:368
        • C:\Windows\System32\Wbem\WMIC.exe
          wmic shadowcopy delete
          4⤵
          • Suspicious use of AdjustPrivilegeToken
          PID:2604
      • 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:2152
        • C:\Windows\system32\bcdedit.exe
          bcdedit /set {default} bootstatuspolicy ignoreallfailures
          4⤵
          • Modifies boot configuration data using bcdedit
          PID:2244
        • C:\Windows\system32\bcdedit.exe
          bcdedit /set {default} recoveryenabled no
          4⤵
          • Modifies boot configuration data using bcdedit
          PID:4440
      • C:\Windows\System32\cmd.exe
        "C:\Windows\System32\cmd.exe" /C wbadmin delete catalog -quiet
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:1972
        • C:\Windows\system32\wbadmin.exe
          wbadmin delete catalog -quiet
          4⤵
          • Deletes backup catalog
          PID:4196
      • C:\Windows\system32\NOTEPAD.EXE
        "C:\Windows\system32\NOTEPAD.EXE" C:\Users\Admin\AppData\Roaming\important.txt
        3⤵
        • Opens file in notepad (likely ransom note)
        PID:4424
  • C:\Windows\system32\vssvc.exe
    C:\Windows\system32\vssvc.exe
    1⤵
    • Suspicious use of AdjustPrivilegeToken
    PID:4352
  • C:\Windows\system32\wbengine.exe
    "C:\Windows\system32\wbengine.exe"
    1⤵
    • Suspicious use of AdjustPrivilegeToken
    PID:4324
  • C:\Windows\System32\vdsldr.exe
    C:\Windows\System32\vdsldr.exe -Embedding
    1⤵
      PID:4476
    • C:\Windows\System32\vds.exe
      C:\Windows\System32\vds.exe
      1⤵
      • Checks SCSI registry key(s)
      PID:876
    • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
      "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --no-appcompat-clear --mojo-platform-channel-handle=3872 --field-trial-handle=2656,i,16940681401824032220,151921362336696246,262144 --variations-seed-version /prefetch:8
      1⤵
        PID:2604

      Network

      MITRE ATT&CK Matrix ATT&CK v13

      Execution

      Command and Scripting Interpreter

      1
      T1059

      Defense Evasion

      Indicator Removal

      3
      T1070

      File Deletion

      3
      T1070.004

      Modify Registry

      1
      T1112

      Credential Access

      Unsecured Credentials

      1
      T1552

      Credentials In Files

      1
      T1552.001

      Discovery

      Query Registry

      3
      T1012

      System Information Discovery

      3
      T1082

      Peripheral Device Discovery

      1
      T1120

      Collection

      Data from Local System

      1
      T1005

      Impact

      Inhibit System Recovery

      4
      T1490

      Defacement

      1
      T1491

      Replay Monitor

      Loading Replay Monitor...

      Downloads

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

        28KB

        MD5

        0d74b1b35a300a46c077a159c9bb1f54

        SHA1

        cf866b0dd5eed866cee681a61dcad1d2a2b868e9

        SHA256

        ae0f395572e1922d28a526075665b5be9cf619044348fe9058569f9dd94f52c9

        SHA512

        dd0487163c66c7f8ddc7d36191abed25e1f4163852c72cecd506dafc16f7ccd4947f79f4dff006773cc11076b46d22cdb1de776f8b637ad60918135b2ef0a8cd

      • C:\Users\Admin\Desktop\important.txt
        Filesize

        941B

        MD5

        5fdc7e501de0d03fbda6f3dd7acb920a

        SHA1

        dc8d97ded3e372e28b239f113fc302cdb735bb94

        SHA256

        d0ef7c6d59cb28093c7418c9b32296669aa32a26721733c9fa08db4d55e07e88

        SHA512

        ea43036af4008ad5c8c1bebc017e5967ab7bc218f929b1efc6498aca2ddf40d2755205fd696c034b013abce2e2039e5320aed3f44c708a8faf161d1289a5524b

      • memory/1712-14-0x00007FFCA3100000-0x00007FFCA3BC1000-memory.dmp
        Filesize

        10.8MB

      • memory/1712-69-0x00007FFCA3100000-0x00007FFCA3BC1000-memory.dmp
        Filesize

        10.8MB

      • memory/2468-0-0x0000000000230000-0x000000000023E000-memory.dmp
        Filesize

        56KB

      • memory/2468-1-0x00007FFCA3100000-0x00007FFCA3BC1000-memory.dmp
        Filesize

        10.8MB

      • memory/2468-15-0x00007FFCA3100000-0x00007FFCA3BC1000-memory.dmp
        Filesize

        10.8MB