Analysis

  • max time kernel
    93s
  • max time network
    141s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    15-11-2024 12:24

General

  • Target

    2024-11-15_d0055ceb4fc413a9a192c9dfb1bc914d_destroyer_wannacry.exe

  • Size

    29KB

  • MD5

    d0055ceb4fc413a9a192c9dfb1bc914d

  • SHA1

    b7d82cb690505161375231929a0debc98160b0cc

  • SHA256

    f7a3d901f6b80aea774f6bce28060c7b128a07f9123284c195b9b7570d62b693

  • SHA512

    3ead7890dbbb05b6df10546992928e743fb1f35ef427bfefc8a0a8e273dd0cda2312127d9ca39dae732fb6c0508c3383695bccb5944447b891f7928950e59c8d

  • SSDEEP

    384:M8SK+KBeWQOxHMcrJ+Q/65noUmwbZb7z/mgmOhqclYhhD9:2K+K48xsMwVb1S+Of9

Malware Config

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
  • Deletes backup catalog 3 TTPs 1 IoCs

    Uses wbadmin.exe to inhibit system recovery.

  • Disables Task Manager via registry modification
  • 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.

  • Adds Run key to start application 2 TTPs 1 IoCs
  • Drops desktop.ini file(s) 64 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 2 IoCs
  • Suspicious behavior: EnumeratesProcesses 52 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\2024-11-15_d0055ceb4fc413a9a192c9dfb1bc914d_destroyer_wannacry.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-11-15_d0055ceb4fc413a9a192c9dfb1bc914d_destroyer_wannacry.exe"
    1⤵
    • Checks computer location settings
    • Suspicious behavior: AddClipboardFormatListener
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2992
    • 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
      • Adds Run key to start application
      • Drops desktop.ini file(s)
      • Modifies registry class
      • Suspicious behavior: AddClipboardFormatListener
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:2652
      • 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:1612
        • C:\Windows\system32\vssadmin.exe
          vssadmin delete shadows /all /quiet
          4⤵
          • Interacts with shadow copies
          PID:3680
        • C:\Windows\System32\Wbem\WMIC.exe
          wmic shadowcopy delete
          4⤵
          • Suspicious use of AdjustPrivilegeToken
          PID:4368
      • 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:2272
        • C:\Windows\system32\bcdedit.exe
          bcdedit /set {default} bootstatuspolicy ignoreallfailures
          4⤵
          • Modifies boot configuration data using bcdedit
          PID:3772
        • C:\Windows\system32\bcdedit.exe
          bcdedit /set {default} recoveryenabled no
          4⤵
          • Modifies boot configuration data using bcdedit
          PID:4632
      • C:\Windows\System32\cmd.exe
        "C:\Windows\System32\cmd.exe" /C wbadmin delete catalog -quiet
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:3140
        • C:\Windows\system32\wbadmin.exe
          wbadmin delete catalog -quiet
          4⤵
          • Deletes backup catalog
          PID:5004
      • 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:2988
  • C:\Windows\system32\vssvc.exe
    C:\Windows\system32\vssvc.exe
    1⤵
    • Suspicious use of AdjustPrivilegeToken
    PID:536
  • C:\Windows\system32\wbengine.exe
    "C:\Windows\system32\wbengine.exe"
    1⤵
    • Suspicious use of AdjustPrivilegeToken
    PID:4472
  • C:\Windows\System32\vdsldr.exe
    C:\Windows\System32\vdsldr.exe -Embedding
    1⤵
      PID:1908
    • C:\Windows\System32\vds.exe
      C:\Windows\System32\vds.exe
      1⤵
      • Checks SCSI registry key(s)
      PID:1964

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\Users\Admin\3D Objects\ReadMe.txt

      Filesize

      1KB

      MD5

      22577d64a5f3bc0195a15faee68d6656

      SHA1

      f33c59571258195a04cb5bd332cefc2efcaee23a

      SHA256

      d2bc1039a06522c7a124a3d612cf7e848bbf6848a5d7551b019937c69e79df4e

      SHA512

      60627178f6252678e77e4f6dbf780d88ad2f77e23a7d96c8398922b5d4fd65aeff85f60f179e690dc76acfc7e073c9c40fe4c5acdee7be8844a06bc006df57a7

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

      Filesize

      29KB

      MD5

      d0055ceb4fc413a9a192c9dfb1bc914d

      SHA1

      b7d82cb690505161375231929a0debc98160b0cc

      SHA256

      f7a3d901f6b80aea774f6bce28060c7b128a07f9123284c195b9b7570d62b693

      SHA512

      3ead7890dbbb05b6df10546992928e743fb1f35ef427bfefc8a0a8e273dd0cda2312127d9ca39dae732fb6c0508c3383695bccb5944447b891f7928950e59c8d

    • C:\Users\Default\NTUSER.DAT

      Filesize

      1B

      MD5

      d1457b72c3fb323a2671125aef3eab5d

      SHA1

      5bab61eb53176449e25c2c82f172b82cb13ffb9d

      SHA256

      8a8de823d5ed3e12746a62ef169bcf372be0ca44f0a1236abc35df05d96928e1

      SHA512

      ca63c07ad35d8c9fb0c92d6146759b122d4ec5d3f67ebe2f30ddb69f9e6c9fd3bf31a5e408b08f1d4d9cd68120cced9e57f010bef3cde97653fed5470da7d1a0

    • memory/2652-15-0x00007FFF759D0000-0x00007FFF76491000-memory.dmp

      Filesize

      10.8MB

    • memory/2652-3315-0x00007FFF759D0000-0x00007FFF76491000-memory.dmp

      Filesize

      10.8MB

    • memory/2992-0-0x00007FFF759D3000-0x00007FFF759D5000-memory.dmp

      Filesize

      8KB

    • memory/2992-1-0x00000000006A0000-0x00000000006AE000-memory.dmp

      Filesize

      56KB

    • memory/2992-2-0x00007FFF759D0000-0x00007FFF76491000-memory.dmp

      Filesize

      10.8MB

    • memory/2992-16-0x00007FFF759D0000-0x00007FFF76491000-memory.dmp

      Filesize

      10.8MB