Analysis

  • max time kernel
    94s
  • max time network
    95s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    09-09-2024 11:21

General

  • Target

    2024-09-09_f7171e2e587d97fc079d0afb7ec73634_destroyer_wannacry.exe

  • Size

    24KB

  • MD5

    f7171e2e587d97fc079d0afb7ec73634

  • SHA1

    54fe4810af4babdec3efc2fa7ae3f9c7117be435

  • SHA256

    bfe508310190495d66f666bc9c65ac4d344a83fa8bb9291563090614aa22a7e5

  • SHA512

    596c553dd2cab33443ba6ab90004e2593cd10c04f3548af6c99297947114a4312858f67ce3aef5474de0f01b08df9745893b4d7480308f148a397a50047efcaf

  • SSDEEP

    384:C3Mg/bqo27bU2NMppqjuwzUvJ5r91CzoGi9ei:4qo2MQMpwjKB5r9MoDei

Malware Config

Extracted

Path

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

Ransom Note
All of your files have been stolen and encrypted, we have downloaded sensitive and compromising data from your system/network including your financial data and network map. Your files have been encrypted and you won't be able to decrypt them without our help. If you modify the files you won't be able to decrypt them What can I do to get my files back? The price for decription is $10k. Payment can be made in Bitcoin only. How do I pay, where do I get Bitcoin? if you don't know how to Purchase, since you're in south africa binance is the best. download the app and you'll see it's easy to buy bitcoin. You can try whatever you wanna try but don't modify the files, they'll be damaged and impossible to decrypt. it's nothing personal, it's all about money. have a great day. You need contact us and decrypt one file for free, You can contact us using Tox messenger without registration https://tox.chat/download.html. after downloading Tox massenger write to us on this Tox ID EEC1A34EA55C1DBC63D8BCC4779D93BB64FC9036C82210467DEB1948A3ABC2248CE1CAB7A181 Payment information Amount: 10 000 USD Non payment will result in your data being published. YOU HAVE 7 DAYS, AFTER 3 DAYS THE MONEY DOUBLES. Bitcoin Address: bc1qpn32q8a3jykzpfnrv6crqulk7wguaryhxzadqa
URLs

https://tox.chat/download.html

Signatures

  • Chaos

    Ransomware family first seen in June 2021.

  • Chaos Ransomware 2 IoCs
  • 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.

  • 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
  • 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 49 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\2024-09-09_f7171e2e587d97fc079d0afb7ec73634_destroyer_wannacry.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-09-09_f7171e2e587d97fc079d0afb7ec73634_destroyer_wannacry.exe"
    1⤵
    • Checks computer location settings
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2332
    • 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:1488
      • 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:3252
        • C:\Windows\system32\vssadmin.exe
          vssadmin delete shadows /all /quiet
          4⤵
          • Interacts with shadow copies
          PID:2832
        • C:\Windows\System32\Wbem\WMIC.exe
          wmic shadowcopy delete
          4⤵
          • Suspicious use of AdjustPrivilegeToken
          PID:3432
      • 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:3428
        • C:\Windows\system32\bcdedit.exe
          bcdedit /set {default} bootstatuspolicy ignoreallfailures
          4⤵
          • Modifies boot configuration data using bcdedit
          PID:4496
        • C:\Windows\system32\bcdedit.exe
          bcdedit /set {default} recoveryenabled no
          4⤵
          • Modifies boot configuration data using bcdedit
          PID:2876
      • C:\Windows\System32\cmd.exe
        "C:\Windows\System32\cmd.exe" /C wbadmin delete catalog -quiet
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:1736
        • C:\Windows\system32\wbadmin.exe
          wbadmin delete catalog -quiet
          4⤵
          • Deletes backup catalog
          PID:4120
      • 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:1956
  • C:\Windows\system32\vssvc.exe
    C:\Windows\system32\vssvc.exe
    1⤵
    • Suspicious use of AdjustPrivilegeToken
    PID:1296
  • C:\Windows\system32\wbengine.exe
    "C:\Windows\system32\wbengine.exe"
    1⤵
    • Suspicious use of AdjustPrivilegeToken
    PID:2744
  • C:\Windows\System32\vdsldr.exe
    C:\Windows\System32\vdsldr.exe -Embedding
    1⤵
      PID:1268
    • C:\Windows\System32\vds.exe
      C:\Windows\System32\vds.exe
      1⤵
      • Checks SCSI registry key(s)
      PID:3896

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

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    Downloads

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

      Filesize

      24KB

      MD5

      f7171e2e587d97fc079d0afb7ec73634

      SHA1

      54fe4810af4babdec3efc2fa7ae3f9c7117be435

      SHA256

      bfe508310190495d66f666bc9c65ac4d344a83fa8bb9291563090614aa22a7e5

      SHA512

      596c553dd2cab33443ba6ab90004e2593cd10c04f3548af6c99297947114a4312858f67ce3aef5474de0f01b08df9745893b4d7480308f148a397a50047efcaf

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

      Filesize

      1KB

      MD5

      d539a8ea3a668e5df4947000e478d179

      SHA1

      642d09ae858cedaa9beea0796cc31c0f52486762

      SHA256

      7ab3d009d5c7088d5c25fa3e4cb6e03acb79b76f76fc1e508ddff2d019300777

      SHA512

      1d2b3c5a148dc39adb295ff7bd5f431e49e409ba1c1cf56b23ad3afdda920950d7f9847d594dd866afa4fae6451f61f09b0a87ddbaa345976915dae024ee4070

    • memory/1488-14-0x00007FF892160000-0x00007FF892C21000-memory.dmp

      Filesize

      10.8MB

    • memory/1488-437-0x00007FF892160000-0x00007FF892C21000-memory.dmp

      Filesize

      10.8MB

    • memory/2332-0-0x00007FF892163000-0x00007FF892165000-memory.dmp

      Filesize

      8KB

    • memory/2332-1-0x0000000000280000-0x000000000028C000-memory.dmp

      Filesize

      48KB