Analysis

  • max time kernel
    117s
  • max time network
    118s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
  • submitted
    19/03/2025, 21:30

General

  • Target

    2025-03-19_41e82de1b54f92bac9808648df59b682_destroyer_wannacry.exe

  • Size

    37KB

  • MD5

    41e82de1b54f92bac9808648df59b682

  • SHA1

    bde789fafbb17afcde0d05737813d50b6c2ffcb6

  • SHA256

    c24966cdb4123eeba8283d8b0ab374520d76f15f7f1b4e81244470246f15c652

  • SHA512

    36ee32ae1b30047c40cb1fe288ec164d78ad777f587efcf5c4a5796632e13d59fbc0651493f08dea2784edcf964ddd95512403a01c471db18b9a5b7507d76393

  • SSDEEP

    768:Vu8xtCdrEx4gc9BB7X9HEzqi78yCtJbDxDz:Vu8xaAxnc9BdlKW

Malware Config

Extracted

Path

C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Crashpad\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 €107.02 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: 0.0013766 BTC Bitcoin Address: bc1qz4w930ws9f7wla0t2gaj2ceex3zq9anjw6xfv3

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 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) 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 7 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\2025-03-19_41e82de1b54f92bac9808648df59b682_destroyer_wannacry.exe
    "C:\Users\Admin\AppData\Local\Temp\2025-03-19_41e82de1b54f92bac9808648df59b682_destroyer_wannacry.exe"
    1⤵
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2312
    • C:\Users\Admin\AppData\Roaming\svchost.exe
      "C:\Users\Admin\AppData\Roaming\svchost.exe"
      2⤵
      • Drops startup file
      • Executes dropped EXE
      • 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:2872
      • 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:2740
        • C:\Windows\system32\vssadmin.exe
          vssadmin delete shadows /all /quiet
          4⤵
          • Interacts with shadow copies
          PID:2900
        • C:\Windows\System32\Wbem\WMIC.exe
          wmic shadowcopy delete
          4⤵
          • Suspicious use of AdjustPrivilegeToken
          PID:1944
      • 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:1080
        • C:\Windows\system32\bcdedit.exe
          bcdedit /set {default} bootstatuspolicy ignoreallfailures
          4⤵
          • Modifies boot configuration data using bcdedit
          PID:1896
        • C:\Windows\system32\bcdedit.exe
          bcdedit /set {default} recoveryenabled no
          4⤵
          • Modifies boot configuration data using bcdedit
          PID:2144
      • C:\Windows\System32\cmd.exe
        "C:\Windows\System32\cmd.exe" /C wbadmin delete catalog -quiet
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:2572
        • C:\Windows\system32\wbadmin.exe
          wbadmin delete catalog -quiet
          4⤵
          • Deletes backup catalog
          PID:476
      • 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:2060
  • C:\Windows\system32\vssvc.exe
    C:\Windows\system32\vssvc.exe
    1⤵
    • Suspicious use of AdjustPrivilegeToken
    PID:2976
  • C:\Windows\system32\wbengine.exe
    "C:\Windows\system32\wbengine.exe"
    1⤵
    • Suspicious use of AdjustPrivilegeToken
    PID:2836
  • C:\Windows\System32\vdsldr.exe
    C:\Windows\System32\vdsldr.exe -Embedding
    1⤵
      PID:2152
    • C:\Windows\System32\vds.exe
      C:\Windows\System32\vds.exe
      1⤵
        PID:2032

      Network

      MITRE ATT&CK Enterprise v15

      Replay Monitor

      Loading Replay Monitor...

      Downloads

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

        Filesize

        964B

        MD5

        243fecaa31ac102c3baca2043e8f64ad

        SHA1

        aa748ed2b5a4bfa408586c445f4606a2f7cf0e97

        SHA256

        48f73a3a28986e2280bc623bf063ddf48260ba767320eb13a312c9a97bdb4a4c

        SHA512

        f39c3491dcebe8be4552e1f1d548a04b3e1c757c8492ffa6e99ac265ef63ca3894d8df90ef06a03bb9d24d99303a30ab35e217bb8f8297b8216876b02848cea6

      • C:\Users\Admin\AppData\Roaming\UnblockPing.svg

        Filesize

        1B

        MD5

        d1457b72c3fb323a2671125aef3eab5d

        SHA1

        5bab61eb53176449e25c2c82f172b82cb13ffb9d

        SHA256

        8a8de823d5ed3e12746a62ef169bcf372be0ca44f0a1236abc35df05d96928e1

        SHA512

        ca63c07ad35d8c9fb0c92d6146759b122d4ec5d3f67ebe2f30ddb69f9e6c9fd3bf31a5e408b08f1d4d9cd68120cced9e57f010bef3cde97653fed5470da7d1a0

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

        Filesize

        37KB

        MD5

        41e82de1b54f92bac9808648df59b682

        SHA1

        bde789fafbb17afcde0d05737813d50b6c2ffcb6

        SHA256

        c24966cdb4123eeba8283d8b0ab374520d76f15f7f1b4e81244470246f15c652

        SHA512

        36ee32ae1b30047c40cb1fe288ec164d78ad777f587efcf5c4a5796632e13d59fbc0651493f08dea2784edcf964ddd95512403a01c471db18b9a5b7507d76393

      • memory/2312-0-0x000007FEF5883000-0x000007FEF5884000-memory.dmp

        Filesize

        4KB

      • memory/2312-1-0x0000000000980000-0x0000000000990000-memory.dmp

        Filesize

        64KB

      • memory/2872-7-0x00000000013C0000-0x00000000013D0000-memory.dmp

        Filesize

        64KB

      • memory/2872-8-0x000007FEF5880000-0x000007FEF626C000-memory.dmp

        Filesize

        9.9MB

      • memory/2872-73-0x000007FEF5880000-0x000007FEF626C000-memory.dmp

        Filesize

        9.9MB

      • memory/2872-885-0x000007FEF5880000-0x000007FEF626C000-memory.dmp

        Filesize

        9.9MB