Analysis

  • max time kernel
    118s
  • max time network
    119s
  • platform
    windows7_x64
  • resource
    win7-20241023-en
  • resource tags

    arch:x64arch:x86image:win7-20241023-enlocale:en-usos:windows7-x64system
  • submitted
    24/03/2025, 00:47

General

  • Target

    2025-03-24_83ad00f11e3ec33a16371426f6485d62_destroyer_wannacry.exe

  • Size

    24KB

  • MD5

    83ad00f11e3ec33a16371426f6485d62

  • SHA1

    6cf9f5f464ed38f550ac4944445563afe1d51636

  • SHA256

    65b9468aa3242eea98820272bb2efd5ab311d3dfad8302d8af14a3431180bb9e

  • SHA512

    e2d8900e545b569272e30fb7e4c3da1d0ca1e9832326f26df2c2cd449a72bbb90a7d11ce80045fb3e097b173db7cc7cc7dfbb71b2b3ef2ccd66cc61618e013b0

  • SSDEEP

    384:Gh3MLWHn3kIQfg4ZJvktIJp+dhT+Jwr91Cz3WK+N05zgx+eh:un3kIX4ZRp+jmwr9i8m5gAeh

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.

  • 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) 34 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\2025-03-24_83ad00f11e3ec33a16371426f6485d62_destroyer_wannacry.exe
    "C:\Users\Admin\AppData\Local\Temp\2025-03-24_83ad00f11e3ec33a16371426f6485d62_destroyer_wannacry.exe"
    1⤵
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2128
    • 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)
      • Suspicious behavior: AddClipboardFormatListener
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:3064
      • 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:2692
        • C:\Windows\system32\vssadmin.exe
          vssadmin delete shadows /all /quiet
          4⤵
          • Interacts with shadow copies
          PID:2864
        • C:\Windows\System32\Wbem\WMIC.exe
          wmic shadowcopy delete
          4⤵
          • Suspicious use of AdjustPrivilegeToken
          PID:2420
      • 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:1828
        • C:\Windows\system32\bcdedit.exe
          bcdedit /set {default} bootstatuspolicy ignoreallfailures
          4⤵
          • Modifies boot configuration data using bcdedit
          PID:2452
        • C:\Windows\system32\bcdedit.exe
          bcdedit /set {default} recoveryenabled no
          4⤵
          • Modifies boot configuration data using bcdedit
          PID:2284
      • C:\Windows\System32\cmd.exe
        "C:\Windows\System32\cmd.exe" /C wbadmin delete catalog -quiet
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:1256
        • C:\Windows\system32\wbadmin.exe
          wbadmin delete catalog -quiet
          4⤵
          • Deletes backup catalog
          PID:2336
      • 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:1728
  • C:\Windows\system32\vssvc.exe
    C:\Windows\system32\vssvc.exe
    1⤵
    • Suspicious use of AdjustPrivilegeToken
    PID:2780
  • C:\Windows\system32\wbengine.exe
    "C:\Windows\system32\wbengine.exe"
    1⤵
    • Suspicious use of AdjustPrivilegeToken
    PID:2020
  • C:\Windows\System32\vdsldr.exe
    C:\Windows\System32\vdsldr.exe -Embedding
    1⤵
      PID:1272
    • C:\Windows\System32\vds.exe
      C:\Windows\System32\vds.exe
      1⤵
        PID:1924

      Network

      MITRE ATT&CK Enterprise v15

      Replay Monitor

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      Downloads

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

        Filesize

        24KB

        MD5

        83ad00f11e3ec33a16371426f6485d62

        SHA1

        6cf9f5f464ed38f550ac4944445563afe1d51636

        SHA256

        65b9468aa3242eea98820272bb2efd5ab311d3dfad8302d8af14a3431180bb9e

        SHA512

        e2d8900e545b569272e30fb7e4c3da1d0ca1e9832326f26df2c2cd449a72bbb90a7d11ce80045fb3e097b173db7cc7cc7dfbb71b2b3ef2ccd66cc61618e013b0

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

        Filesize

        1KB

        MD5

        015a5675551a6ef89af7206a38215620

        SHA1

        f330ed135307f3bb346cbf543a3dc0b6a69d7948

        SHA256

        6ccf8e63e5969ea0ecdb1fe6e9e53e183decefc022a772c1b0c7c9263976e567

        SHA512

        fbd26ef8a02a378769dac5675ec26a6dc6cb79e4d7cde65d1032d2ceaa92b88f308fe276d35c20a07cb3e4ec7d3896dc671e84839e4876f26a83699d692573e9

      • memory/2128-0-0x000007FEF6103000-0x000007FEF6104000-memory.dmp

        Filesize

        4KB

      • memory/2128-1-0x0000000000100000-0x000000000010C000-memory.dmp

        Filesize

        48KB

      • memory/3064-7-0x0000000000AC0000-0x0000000000ACC000-memory.dmp

        Filesize

        48KB

      • memory/3064-9-0x000007FEF6100000-0x000007FEF6AEC000-memory.dmp

        Filesize

        9.9MB

      • memory/3064-71-0x000007FEF6100000-0x000007FEF6AEC000-memory.dmp

        Filesize

        9.9MB

      • memory/3064-72-0x000007FEF6100000-0x000007FEF6AEC000-memory.dmp

        Filesize

        9.9MB