Analysis

  • max time kernel
    149s
  • max time network
    156s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    24-01-2025 10:40

General

  • Target

    2025-01-24_a1f418db95f94c1f1663147818fa0876_destroyer_wannacry.exe

  • Size

    27KB

  • MD5

    a1f418db95f94c1f1663147818fa0876

  • SHA1

    77ed15edc420d4ab57a9a78277295510e89d7f0c

  • SHA256

    d9ae6f94dd80186d859b7db83af8e0dcfef1d23196427d1837e3afb920eb09dd

  • SHA512

    06419b5a1d350061f4b05dfea4faa63d587228a57725fe1f10a846c2878b21fe55b4ea388b779ab8d5f4d2a60c90bd388da7183d7dfa7011244a00205c6aafc9

  • SSDEEP

    384:QtWZPzzxAm1va5ST2cbS74WtRQ3dChlsNpGxUlkOy5o91vtl+RXP82vc:l7zxAmCEXbS1RQ3dnN4Dho9Mt82E

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 2 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
  • Suspicious behavior: AddClipboardFormatListener 2 IoCs
  • Suspicious behavior: EnumeratesProcesses 48 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\2025-01-24_a1f418db95f94c1f1663147818fa0876_destroyer_wannacry.exe
    "C:\Users\Admin\AppData\Local\Temp\2025-01-24_a1f418db95f94c1f1663147818fa0876_destroyer_wannacry.exe"
    1⤵
    • Checks computer location settings
    • Suspicious behavior: AddClipboardFormatListener
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:4612
    • 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:4736
      • 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:4292
        • C:\Windows\system32\vssadmin.exe
          vssadmin delete shadows /all /quiet
          4⤵
          • Interacts with shadow copies
          PID:3920
        • C:\Windows\System32\Wbem\WMIC.exe
          wmic shadowcopy delete
          4⤵
          • Suspicious use of AdjustPrivilegeToken
          PID:2468
      • 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:3064
        • C:\Windows\system32\bcdedit.exe
          bcdedit /set {default} bootstatuspolicy ignoreallfailures
          4⤵
          • Modifies boot configuration data using bcdedit
          PID:4140
        • C:\Windows\system32\bcdedit.exe
          bcdedit /set {default} recoveryenabled no
          4⤵
          • Modifies boot configuration data using bcdedit
          PID:4760
      • C:\Windows\System32\cmd.exe
        "C:\Windows\System32\cmd.exe" /C wbadmin delete catalog -quiet
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:3216
        • C:\Windows\system32\wbadmin.exe
          wbadmin delete catalog -quiet
          4⤵
          • Deletes backup catalog
          PID:2452
      • C:\Windows\system32\NOTEPAD.EXE
        "C:\Windows\system32\NOTEPAD.EXE" C:\Users\Admin\AppData\Roaming\READ IT.txt
        3⤵
          PID:4900
    • C:\Windows\system32\vssvc.exe
      C:\Windows\system32\vssvc.exe
      1⤵
      • Suspicious use of AdjustPrivilegeToken
      PID:3612
    • C:\Windows\system32\wbengine.exe
      "C:\Windows\system32\wbengine.exe"
      1⤵
      • Suspicious use of AdjustPrivilegeToken
      PID:1204
    • C:\Windows\System32\vdsldr.exe
      C:\Windows\System32\vdsldr.exe -Embedding
      1⤵
        PID:3444
      • C:\Windows\System32\vds.exe
        C:\Windows\System32\vds.exe
        1⤵
        • Checks SCSI registry key(s)
        PID:3052

      Network

      MITRE ATT&CK Enterprise v15

      Replay Monitor

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      Downloads

      • C:\ProgramData\Adobe\Setup\{AC76BA86-7AD7-1033-7B44-AC0F074E4100}\READ IT.txt

        Filesize

        323B

        MD5

        2ce810c03c2d8386c1eec9effa164fab

        SHA1

        07fc77c11e5f4e13dfc511d42ab7ba7af0ce24e6

        SHA256

        b0cc7acb51968d4e39a60c480720a2f4dda62f6fae36d93b17be2642b023f1d6

        SHA512

        a4c22275a551cf671206b72520a311fe76a70543a384e59ad4b5d30cbed13493a96c0b4360731aeec1175bab58ed24a19c37e18647c9ae4f3c9966a0f9258094

      • C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0\UsageLogs\2025-01-24_a1f418db95f94c1f1663147818fa0876_destroyer_wannacry.exe.log

        Filesize

        1KB

        MD5

        baf55b95da4a601229647f25dad12878

        SHA1

        abc16954ebfd213733c4493fc1910164d825cac8

        SHA256

        ee954c5d8156fd8890e582c716e5758ed9b33721258f10e758bdc31ccbcb1924

        SHA512

        24f502fedb1a305d0d7b08857ffc1db9b2359ff34e06d5748ecc84e35c985f29a20d9f0a533bea32d234ab37097ec0481620c63b14ac89b280e75e14d19fd545

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

        Filesize

        27KB

        MD5

        a1f418db95f94c1f1663147818fa0876

        SHA1

        77ed15edc420d4ab57a9a78277295510e89d7f0c

        SHA256

        d9ae6f94dd80186d859b7db83af8e0dcfef1d23196427d1837e3afb920eb09dd

        SHA512

        06419b5a1d350061f4b05dfea4faa63d587228a57725fe1f10a846c2878b21fe55b4ea388b779ab8d5f4d2a60c90bd388da7183d7dfa7011244a00205c6aafc9

      • C:\Users\Default\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Accessibility\Magnify.lnk

        Filesize

        1B

        MD5

        d1457b72c3fb323a2671125aef3eab5d

        SHA1

        5bab61eb53176449e25c2c82f172b82cb13ffb9d

        SHA256

        8a8de823d5ed3e12746a62ef169bcf372be0ca44f0a1236abc35df05d96928e1

        SHA512

        ca63c07ad35d8c9fb0c92d6146759b122d4ec5d3f67ebe2f30ddb69f9e6c9fd3bf31a5e408b08f1d4d9cd68120cced9e57f010bef3cde97653fed5470da7d1a0

      • memory/4612-0-0x00007FFFCD2F3000-0x00007FFFCD2F5000-memory.dmp

        Filesize

        8KB

      • memory/4612-1-0x0000000000FC0000-0x0000000000FCE000-memory.dmp

        Filesize

        56KB

      • memory/4612-2-0x00007FFFCD2F0000-0x00007FFFCDDB1000-memory.dmp

        Filesize

        10.8MB

      • memory/4612-15-0x00007FFFCD2F0000-0x00007FFFCDDB1000-memory.dmp

        Filesize

        10.8MB

      • memory/4736-16-0x00007FFFCD2F0000-0x00007FFFCDDB1000-memory.dmp

        Filesize

        10.8MB

      • memory/4736-1258-0x00007FFFCD2F0000-0x00007FFFCDDB1000-memory.dmp

        Filesize

        10.8MB