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Analysis

  • max time kernel
    118s
  • max time network
    118s
  • platform
    windows7_x64
  • resource
    win7-20240221-en
  • resource tags

    arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
  • submitted
    24/03/2024, 19:39

General

  • Target

    2024-03-24_ee42b46e17aea48b2b2863870d550152_chaos_destroyer_wannacry.exe

  • Size

    31KB

  • MD5

    ee42b46e17aea48b2b2863870d550152

  • SHA1

    bc55e9feb8f4eb627e2848e0a3e350b176e70a48

  • SHA256

    af7f876a423f8223a333aaf0d59cbc4dce7ee93ae431a25f97ea5479cfbd2b2c

  • SHA512

    ed27eaf5f8a9dc547ebb74c06bd028bb2f0f0ed18de60e75a608487c3c17d197e6f73f0f9fede6f05b2224a38acd7707984e77fcf5bfc5251f0eff2bf9064902

  • SSDEEP

    768:7qo25O5p1r2sSiVM2r9JFkiUeCDY9Ogare:Wo2ErhVM2r93rCDwOLr

Malware Config

Extracted

Path

C:\Users\Admin\Documents\README.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 $100. Payment can be made in Bitcoin (Bitcoin Address: bc1qakhl8eu20ely220fxm6d3tjsk2al64vrha4sxa), Ethereum (ETH Address: 0x22D2C1C38b3c26C9E403B34ea5aF42Af00e90d9f), Binance Coin (BNB Address: bnb17CqMQFeuB3NTzJ2X28tfRmWaPyPQgvoHV0205gfc6ykk), or through PayPal (Burner Account: [email protected]). You can make the payment directly by visiting this PayPal site: PayPal Payment Site. How do I pay, where do I get Bitcoin, Ethereum, Binance Coin, or PayPal? Purchasing Bitcoin, Ethereum, or Binance Coin varies from country to country, you are best advised to do a quick Google search yourself to find out how to buy Bitcoin, Ethereum, Binance Coin, or set up a PayPal account. These sites will help you to get fast and reliable Bitcoin, Ethereum, Binance Coin, or PayPal. Coinmama - https://www.coinmama.com/ Bitpanda - https://www.bitpanda.com/ If you will try to seek for help or advice we recommend not to. Why you ask? Because no other software can decrypt this ransomware, only us have the special key to unlock it. So getting other decrypters will be worthless. Don't even think about calling the cops; we will snitch about your pedo activity! You have exactly 12 hours from now to pay up or your PC will be locked for a very long time, approximately 125 Years! Have fun buddy. We monitor every move you make, 👁️‍🗨️ with 8 eyes on you, always one step ahead 👁️, lurking in your devices.
URLs

https://www.coinmama.com/

https://www.bitpanda.com/

Signatures

  • Chaos

    Ransomware family first seen in June 2021.

  • Chaos Ransomware 3 IoCs
  • Deletes shadow copies 2 TTPs

    Ransomware often targets backup files to inhibit system recovery.

  • Detects command variations typically used by ransomware 3 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.

  • 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
  • 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.

  • Opens file in notepad (likely ransom note) 1 IoCs
  • Suspicious behavior: AddClipboardFormatListener 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 9 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\2024-03-24_ee42b46e17aea48b2b2863870d550152_chaos_destroyer_wannacry.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-03-24_ee42b46e17aea48b2b2863870d550152_chaos_destroyer_wannacry.exe"
    1⤵
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2872
    • C:\Users\Admin\AppData\Roaming\Escape Rooms.exe
      "C:\Users\Admin\AppData\Roaming\Escape Rooms.exe"
      2⤵
      • Drops startup file
      • Executes dropped EXE
      • Drops desktop.ini file(s)
      • Suspicious behavior: AddClipboardFormatListener
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:1356
      • 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:2928
        • C:\Windows\system32\vssadmin.exe
          vssadmin delete shadows /all /quiet
          4⤵
          • Interacts with shadow copies
          PID:1944
        • C:\Windows\System32\Wbem\WMIC.exe
          wmic shadowcopy delete
          4⤵
          • Suspicious use of AdjustPrivilegeToken
          PID:296
      • 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:1652
        • C:\Windows\system32\bcdedit.exe
          bcdedit /set {default} bootstatuspolicy ignoreallfailures
          4⤵
          • Modifies boot configuration data using bcdedit
          PID:756
        • C:\Windows\system32\bcdedit.exe
          bcdedit /set {default} recoveryenabled no
          4⤵
          • Modifies boot configuration data using bcdedit
          PID:1648
      • C:\Windows\System32\cmd.exe
        "C:\Windows\System32\cmd.exe" /C wbadmin delete catalog -quiet
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:2504
        • C:\Windows\system32\wbadmin.exe
          wbadmin delete catalog -quiet
          4⤵
          • Deletes backup catalog
          PID:2220
      • C:\Windows\system32\NOTEPAD.EXE
        "C:\Windows\system32\NOTEPAD.EXE" C:\Users\Admin\AppData\Roaming\README.txt
        3⤵
        • Opens file in notepad (likely ransom note)
        PID:1136
  • C:\Windows\system32\vssvc.exe
    C:\Windows\system32\vssvc.exe
    1⤵
    • Suspicious use of AdjustPrivilegeToken
    PID:2684
  • C:\Windows\system32\wbengine.exe
    "C:\Windows\system32\wbengine.exe"
    1⤵
    • Suspicious use of AdjustPrivilegeToken
    PID:1332
  • C:\Windows\System32\vdsldr.exe
    C:\Windows\System32\vdsldr.exe -Embedding
    1⤵
      PID:2276
    • C:\Windows\System32\vds.exe
      C:\Windows\System32\vds.exe
      1⤵
        PID:2428

      Network

      MITRE ATT&CK Enterprise v15

      Replay Monitor

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      Downloads

      • C:\Users\Admin\AppData\Roaming\Escape Rooms.exe

        Filesize

        31KB

        MD5

        ee42b46e17aea48b2b2863870d550152

        SHA1

        bc55e9feb8f4eb627e2848e0a3e350b176e70a48

        SHA256

        af7f876a423f8223a333aaf0d59cbc4dce7ee93ae431a25f97ea5479cfbd2b2c

        SHA512

        ed27eaf5f8a9dc547ebb74c06bd028bb2f0f0ed18de60e75a608487c3c17d197e6f73f0f9fede6f05b2224a38acd7707984e77fcf5bfc5251f0eff2bf9064902

      • C:\Users\Admin\Documents\README.txt

        Filesize

        1KB

        MD5

        7d5f698cb54adadbb3d7d57e439dc44e

        SHA1

        ffc61325585a69e1778051cd1fd079c638d06814

        SHA256

        cfe92414effc7475be21f9b8752a999435eb5fca9e23b07c634745b7e669dd37

        SHA512

        fb595ab8f9e3449791c866ae47faedafbb9e12c20a25893759c17d09af472df6804915514581117a69edf2a717e80994ebdd958d694e36f4b8bf53c45056eee5

      • memory/1356-7-0x00000000002F0000-0x00000000002FC000-memory.dmp

        Filesize

        48KB

      • memory/1356-9-0x000007FEF5A30000-0x000007FEF641C000-memory.dmp

        Filesize

        9.9MB

      • memory/1356-11-0x000000001ADF0000-0x000000001AE70000-memory.dmp

        Filesize

        512KB

      • memory/1356-461-0x000007FEF5A30000-0x000007FEF641C000-memory.dmp

        Filesize

        9.9MB

      • memory/1356-462-0x000000001ADF0000-0x000000001AE70000-memory.dmp

        Filesize

        512KB

      • memory/2872-0-0x00000000000A0000-0x00000000000AC000-memory.dmp

        Filesize

        48KB

      • memory/2872-1-0x000007FEF5A30000-0x000007FEF641C000-memory.dmp

        Filesize

        9.9MB

      • memory/2872-8-0x000007FEF5A30000-0x000007FEF641C000-memory.dmp

        Filesize

        9.9MB