Analysis

  • max time kernel
    121s
  • max time network
    122s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-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 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 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).

  • Interacts with shadow copies 3 TTPs 1 IoCs

    Shadow copies are often targeted by ransomware to inhibit system recovery.

  • Suspicious behavior: AddClipboardFormatListener 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 6 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\2025-01-24_a1f418db95f94c1f1663147818fa0876_destroyer_wannacry.exe
    "C:\Users\Admin\AppData\Local\Temp\2025-01-24_a1f418db95f94c1f1663147818fa0876_destroyer_wannacry.exe"
    1⤵
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2168
    • C:\Users\Admin\AppData\Roaming\svchost.exe
      "C:\Users\Admin\AppData\Roaming\svchost.exe"
      2⤵
      • Drops startup file
      • Executes dropped EXE
      • Adds Run key to start application
      • Drops desktop.ini file(s)
      • Suspicious behavior: AddClipboardFormatListener
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:2860
      • 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:2680
        • C:\Windows\system32\vssadmin.exe
          vssadmin delete shadows /all /quiet
          4⤵
          • Interacts with shadow copies
          PID:2728
        • C:\Windows\System32\Wbem\WMIC.exe
          wmic shadowcopy delete
          4⤵
          • Suspicious use of AdjustPrivilegeToken
          PID:2592
      • 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:2292
        • C:\Windows\system32\bcdedit.exe
          bcdedit /set {default} bootstatuspolicy ignoreallfailures
          4⤵
          • Modifies boot configuration data using bcdedit
          PID:644
        • C:\Windows\system32\bcdedit.exe
          bcdedit /set {default} recoveryenabled no
          4⤵
          • Modifies boot configuration data using bcdedit
          PID:1860
      • C:\Windows\System32\cmd.exe
        "C:\Windows\System32\cmd.exe" /C wbadmin delete catalog -quiet
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:732
        • C:\Windows\system32\wbadmin.exe
          wbadmin delete catalog -quiet
          4⤵
          • Deletes backup catalog
          PID:1808
      • C:\Windows\system32\NOTEPAD.EXE
        "C:\Windows\system32\NOTEPAD.EXE" C:\Users\Admin\AppData\Roaming\READ IT.txt
        3⤵
          PID:644
    • C:\Windows\system32\vssvc.exe
      C:\Windows\system32\vssvc.exe
      1⤵
      • Suspicious use of AdjustPrivilegeToken
      PID:2812
    • C:\Windows\system32\wbengine.exe
      "C:\Windows\system32\wbengine.exe"
      1⤵
      • Suspicious use of AdjustPrivilegeToken
      PID:2892
    • C:\Windows\System32\vdsldr.exe
      C:\Windows\System32\vdsldr.exe -Embedding
      1⤵
        PID:1992
      • C:\Windows\System32\vds.exe
        C:\Windows\System32\vds.exe
        1⤵
          PID:700

        Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

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        Downloads

        • C:\Users\Admin\AppData\Local\Google\Chrome\User Data\READ IT.txt

          Filesize

          323B

          MD5

          2ce810c03c2d8386c1eec9effa164fab

          SHA1

          07fc77c11e5f4e13dfc511d42ab7ba7af0ce24e6

          SHA256

          b0cc7acb51968d4e39a60c480720a2f4dda62f6fae36d93b17be2642b023f1d6

          SHA512

          a4c22275a551cf671206b72520a311fe76a70543a384e59ad4b5d30cbed13493a96c0b4360731aeec1175bab58ed24a19c37e18647c9ae4f3c9966a0f9258094

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

          Filesize

          27KB

          MD5

          a1f418db95f94c1f1663147818fa0876

          SHA1

          77ed15edc420d4ab57a9a78277295510e89d7f0c

          SHA256

          d9ae6f94dd80186d859b7db83af8e0dcfef1d23196427d1837e3afb920eb09dd

          SHA512

          06419b5a1d350061f4b05dfea4faa63d587228a57725fe1f10a846c2878b21fe55b4ea388b779ab8d5f4d2a60c90bd388da7183d7dfa7011244a00205c6aafc9

        • C:\Users\Admin\Desktop\CopySelect.mov

          Filesize

          1B

          MD5

          d1457b72c3fb323a2671125aef3eab5d

          SHA1

          5bab61eb53176449e25c2c82f172b82cb13ffb9d

          SHA256

          8a8de823d5ed3e12746a62ef169bcf372be0ca44f0a1236abc35df05d96928e1

          SHA512

          ca63c07ad35d8c9fb0c92d6146759b122d4ec5d3f67ebe2f30ddb69f9e6c9fd3bf31a5e408b08f1d4d9cd68120cced9e57f010bef3cde97653fed5470da7d1a0

        • memory/2168-0-0x000007FEF5B03000-0x000007FEF5B04000-memory.dmp

          Filesize

          4KB

        • memory/2168-1-0x00000000001F0000-0x00000000001FE000-memory.dmp

          Filesize

          56KB

        • memory/2168-2-0x000007FEF5B00000-0x000007FEF64EC000-memory.dmp

          Filesize

          9.9MB

        • memory/2168-9-0x000007FEF5B00000-0x000007FEF64EC000-memory.dmp

          Filesize

          9.9MB

        • memory/2860-8-0x0000000000DD0000-0x0000000000DDE000-memory.dmp

          Filesize

          56KB

        • memory/2860-10-0x000007FEF5B00000-0x000007FEF64EC000-memory.dmp

          Filesize

          9.9MB

        • memory/2860-11-0x000007FEF5B00000-0x000007FEF64EC000-memory.dmp

          Filesize

          9.9MB

        • memory/2860-920-0x000007FEF5B00000-0x000007FEF64EC000-memory.dmp

          Filesize

          9.9MB