Analysis

  • max time kernel
    150s
  • max time network
    16s
  • platform
    windows7_x64
  • resource
    win7-20240705-en
  • resource tags

    arch:x64arch:x86image:win7-20240705-enlocale:en-usos:windows7-x64system
  • submitted
    22-08-2024 11:35

General

  • Target

    2024-08-22_c4cc2b7a0e7f9d971cc0e15e7c4a5187_destroyer_wannacry.exe

  • Size

    35KB

  • MD5

    c4cc2b7a0e7f9d971cc0e15e7c4a5187

  • SHA1

    f86d9a402129657b37f4e65dd6b998bd68dd741f

  • SHA256

    db6f25c92afed67df724581d62d2d11669d5946fe5f1a53dc02ec6aa5265344c

  • SHA512

    375ac75dcf2b0acc89917d27e758f191085670ca60dc27379a3e2f61b339df0adeaa1dc23dd8026969fbbefe1cf6a51addade499ce52fac64b3428045f979dc9

  • SSDEEP

    768:wqoyptoxRFbmAu2Z/i4+kPLFr9C6IxbL6ume4:XoysF8ua47LFr9C6I1j4

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 $1,500. 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

Signatures

  • Chaos

    Ransomware family first seen in June 2021.

  • Chaos Ransomware 3 IoCs
  • Deletes shadow copies 3 TTPs

    Ransomware often targets backup files to inhibit system recovery.

  • Looks for VirtualBox Guest Additions in registry 2 TTPs 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.

  • Looks for VMWare Tools registry key 2 TTPs 2 IoCs
  • Checks BIOS information in registry 2 TTPs 4 IoCs

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

  • 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
  • Maps connected drives based on registry 3 TTPs 4 IoCs

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

  • 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 64 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\2024-08-22_c4cc2b7a0e7f9d971cc0e15e7c4a5187_destroyer_wannacry.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-08-22_c4cc2b7a0e7f9d971cc0e15e7c4a5187_destroyer_wannacry.exe"
    1⤵
    • Looks for VirtualBox Guest Additions in registry
    • Looks for VMWare Tools registry key
    • Checks BIOS information in registry
    • Maps connected drives based on registry
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2260
    • C:\Users\Admin\AppData\Roaming\svchost.exe
      "C:\Users\Admin\AppData\Roaming\svchost.exe"
      2⤵
      • Looks for VirtualBox Guest Additions in registry
      • Looks for VMWare Tools registry key
      • Checks BIOS information in registry
      • Drops startup file
      • Executes dropped EXE
      • Drops desktop.ini file(s)
      • Maps connected drives based on registry
      • Suspicious behavior: AddClipboardFormatListener
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:2240
      • 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:1972
        • C:\Windows\system32\vssadmin.exe
          vssadmin delete shadows /all /quiet
          4⤵
          • Interacts with shadow copies
          PID:2340
        • C:\Windows\System32\Wbem\WMIC.exe
          wmic shadowcopy delete
          4⤵
          • Suspicious use of AdjustPrivilegeToken
          PID:2956
      • 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:996
        • C:\Windows\system32\bcdedit.exe
          bcdedit /set {default} bootstatuspolicy ignoreallfailures
          4⤵
          • Modifies boot configuration data using bcdedit
          PID:2404
        • C:\Windows\system32\bcdedit.exe
          bcdedit /set {default} recoveryenabled no
          4⤵
          • Modifies boot configuration data using bcdedit
          PID:392
      • C:\Windows\System32\cmd.exe
        "C:\Windows\System32\cmd.exe" /C wbadmin delete catalog -quiet
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:1480
        • C:\Windows\system32\wbadmin.exe
          wbadmin delete catalog -quiet
          4⤵
          • Deletes backup catalog
          PID:2360
      • 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:1636
  • C:\Windows\system32\vssvc.exe
    C:\Windows\system32\vssvc.exe
    1⤵
    • Suspicious use of AdjustPrivilegeToken
    PID:1604
  • C:\Windows\system32\wbengine.exe
    "C:\Windows\system32\wbengine.exe"
    1⤵
    • Suspicious use of AdjustPrivilegeToken
    PID:980
  • C:\Windows\System32\vdsldr.exe
    C:\Windows\System32\vdsldr.exe -Embedding
    1⤵
      PID:1512
    • C:\Windows\System32\vds.exe
      C:\Windows\System32\vds.exe
      1⤵
        PID:1740

      Network

      MITRE ATT&CK Enterprise v15

      Replay Monitor

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      Downloads

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

        Filesize

        35KB

        MD5

        c4cc2b7a0e7f9d971cc0e15e7c4a5187

        SHA1

        f86d9a402129657b37f4e65dd6b998bd68dd741f

        SHA256

        db6f25c92afed67df724581d62d2d11669d5946fe5f1a53dc02ec6aa5265344c

        SHA512

        375ac75dcf2b0acc89917d27e758f191085670ca60dc27379a3e2f61b339df0adeaa1dc23dd8026969fbbefe1cf6a51addade499ce52fac64b3428045f979dc9

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

        Filesize

        964B

        MD5

        4217b8b83ce3c3f70029a056546f8fd0

        SHA1

        487cdb5733d073a0427418888e8f7070fe782a03

        SHA256

        7d767e907be373c680d1f7884d779588eb643bebb3f27bf3b5ed4864aa4d8121

        SHA512

        2a58c99fa52f99c276e27eb98aef2ce1205f16d1e37b7e87eb69e9ecda22b578195a43f1a7f70fead6ba70421abf2f85c917551c191536eaf1f3011d3d24f740

      • memory/2240-8-0x0000000000F40000-0x0000000000F52000-memory.dmp

        Filesize

        72KB

      • memory/2240-9-0x000007FEF5EA0000-0x000007FEF688C000-memory.dmp

        Filesize

        9.9MB

      • memory/2240-476-0x000007FEF5EA0000-0x000007FEF688C000-memory.dmp

        Filesize

        9.9MB

      • memory/2260-0-0x000007FEF5EA3000-0x000007FEF5EA4000-memory.dmp

        Filesize

        4KB

      • memory/2260-1-0x0000000000D90000-0x0000000000DA2000-memory.dmp

        Filesize

        72KB

      • memory/2260-2-0x000007FEF5EA0000-0x000007FEF688C000-memory.dmp

        Filesize

        9.9MB

      • memory/2260-10-0x000007FEF5EA0000-0x000007FEF688C000-memory.dmp

        Filesize

        9.9MB