Analysis

  • max time kernel
    94s
  • max time network
    150s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20250129-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20250129-enlocale:en-usos:windows10-2004-x64system
  • submitted
    30-01-2025 16:27

General

  • Target

    2025-01-30_e268d6f87640a4031cde75775c37e289_chaos_destroyer_wannacry.exe

  • Size

    24KB

  • MD5

    e268d6f87640a4031cde75775c37e289

  • SHA1

    0045a30dc57eb37a5210cace55295fdebc057472

  • SHA256

    a5379455e745a667baa6b3f6e76dcd161b55d136cc5ccdc3a38f793bc2e51060

  • SHA512

    8cfbffe5346ebe05412125666c0ec582967af2c81269f1c659c9198c314198f581acc68c59f48c372c0781af64bbfd0859c274e923723ad77a27eb1fca4acf3c

  • SSDEEP

    384:s3Mg/bqo2vkhI6MxdDpzAD4+X0Z/BJxr91CWKvbnjeZ:Sqo28hwLpzu4+kRvxr9zKvbjeZ

Malware Config

Extracted

Path

C:\Users\Admin\Documents\read_it.txt

Family

chaos

Ransom Note
----> Chaos is multi language ransomware. Translate your note to any language <---- 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 $1000. Payment can be made in Bitcoin only. 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 - hxxps://www.coinmama.com Bitpanda - hxxps://www.bitpanda.com Payment informationAmount: 0.1473766 BTC Bitcoin Address: bc1qlnzcep4l4ac0ttdrq7awxev9ehu465f2vpt9x0 A VIDEO SHOW YOU HOW THE SOFTWARE DECRYPT YOUR FILES YOU HAVE ONE WEEK , YOU HAVE TWO CHOICES : PAY OR LOOSE YOUR FILES :') GOOD LUCK

Signatures

  • Chaos

    Ransomware family first seen in June 2021.

  • Chaos Ransomware 2 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
  • Renames multiple (220) files with added filename extension

    This suggests ransomware activity of encrypting all the files on the system.

  • 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 3 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).

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

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

  • Interacts with shadow copies 3 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 47 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\2025-01-30_e268d6f87640a4031cde75775c37e289_chaos_destroyer_wannacry.exe
    "C:\Users\Admin\AppData\Local\Temp\2025-01-30_e268d6f87640a4031cde75775c37e289_chaos_destroyer_wannacry.exe"
    1⤵
    • Checks computer location settings
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:5036
    • 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)
      • Modifies registry class
      • Suspicious behavior: AddClipboardFormatListener
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:744
      • 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:1288
        • C:\Windows\system32\vssadmin.exe
          vssadmin delete shadows /all /quiet
          4⤵
          • Interacts with shadow copies
          PID:2288
        • C:\Windows\System32\Wbem\WMIC.exe
          wmic shadowcopy delete
          4⤵
          • Suspicious use of AdjustPrivilegeToken
          PID:4480
      • 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:2900
        • C:\Windows\system32\bcdedit.exe
          bcdedit /set {default} bootstatuspolicy ignoreallfailures
          4⤵
          • Modifies boot configuration data using bcdedit
          PID:3936
        • C:\Windows\system32\bcdedit.exe
          bcdedit /set {default} recoveryenabled no
          4⤵
          • Modifies boot configuration data using bcdedit
          PID:2352
      • C:\Windows\System32\cmd.exe
        "C:\Windows\System32\cmd.exe" /C wbadmin delete catalog -quiet
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:1392
        • C:\Windows\system32\wbadmin.exe
          wbadmin delete catalog -quiet
          4⤵
          • Deletes backup catalog
          PID:4552
      • 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:1404
  • C:\Windows\system32\vssvc.exe
    C:\Windows\system32\vssvc.exe
    1⤵
    • Suspicious use of AdjustPrivilegeToken
    PID:3948
  • C:\Windows\system32\wbengine.exe
    "C:\Windows\system32\wbengine.exe"
    1⤵
    • Suspicious use of AdjustPrivilegeToken
    PID:3756
  • C:\Windows\System32\vdsldr.exe
    C:\Windows\System32\vdsldr.exe -Embedding
    1⤵
      PID:1988
    • C:\Windows\System32\vds.exe
      C:\Windows\System32\vds.exe
      1⤵
      • Checks SCSI registry key(s)
      PID:5032

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

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    Downloads

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

      Filesize

      24KB

      MD5

      e268d6f87640a4031cde75775c37e289

      SHA1

      0045a30dc57eb37a5210cace55295fdebc057472

      SHA256

      a5379455e745a667baa6b3f6e76dcd161b55d136cc5ccdc3a38f793bc2e51060

      SHA512

      8cfbffe5346ebe05412125666c0ec582967af2c81269f1c659c9198c314198f581acc68c59f48c372c0781af64bbfd0859c274e923723ad77a27eb1fca4acf3c

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

      Filesize

      1KB

      MD5

      c06fc790feb3e340e96cf976343babd3

      SHA1

      7bc072599d6bb1b16b3d37fee85b45f35221226a

      SHA256

      49808ee2bfdb940fd396309f64d6b717fdaaf87bd3cc14c6a0a38c3b3008ac22

      SHA512

      a3df59409c15163b6b5561997f4d67fab0957f0d6d033017ab0297ff7ed4028aa3837aa04af6275779dd4e32497bc5b3bb94d747a9c367e93ffad9cad1c79c8d

    • memory/744-14-0x00007FF978110000-0x00007FF978BD1000-memory.dmp

      Filesize

      10.8MB

    • memory/744-509-0x00007FF978110000-0x00007FF978BD1000-memory.dmp

      Filesize

      10.8MB

    • memory/5036-0-0x00007FF978113000-0x00007FF978115000-memory.dmp

      Filesize

      8KB

    • memory/5036-1-0x00000000007B0000-0x00000000007BC000-memory.dmp

      Filesize

      48KB