Analysis

  • max time kernel
    101s
  • max time network
    148s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20250314-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20250314-enlocale:en-usos:windows10-2004-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 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.

  • 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.

  • Drops desktop.ini file(s) 34 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 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 49 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\2025-03-24_83ad00f11e3ec33a16371426f6485d62_destroyer_wannacry.exe
    "C:\Users\Admin\AppData\Local\Temp\2025-03-24_83ad00f11e3ec33a16371426f6485d62_destroyer_wannacry.exe"
    1⤵
    • Checks computer location settings
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:4536
    • 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
      • Drops desktop.ini file(s)
      • Modifies registry class
      • Suspicious behavior: AddClipboardFormatListener
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:3788
      • 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:4916
        • C:\Windows\system32\vssadmin.exe
          vssadmin delete shadows /all /quiet
          4⤵
          • Interacts with shadow copies
          PID:5004
        • C:\Windows\System32\Wbem\WMIC.exe
          wmic shadowcopy delete
          4⤵
          • Suspicious use of AdjustPrivilegeToken
          PID:4056
      • 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:1924
        • C:\Windows\system32\bcdedit.exe
          bcdedit /set {default} bootstatuspolicy ignoreallfailures
          4⤵
          • Modifies boot configuration data using bcdedit
          PID:4380
        • C:\Windows\system32\bcdedit.exe
          bcdedit /set {default} recoveryenabled no
          4⤵
          • Modifies boot configuration data using bcdedit
          PID:1980
      • C:\Windows\System32\cmd.exe
        "C:\Windows\System32\cmd.exe" /C wbadmin delete catalog -quiet
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:3760
        • C:\Windows\system32\wbadmin.exe
          wbadmin delete catalog -quiet
          4⤵
          • Deletes backup catalog
          PID:4684
      • 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:2792
  • C:\Windows\system32\vssvc.exe
    C:\Windows\system32\vssvc.exe
    1⤵
    • Suspicious use of AdjustPrivilegeToken
    PID:4192
  • C:\Windows\system32\wbengine.exe
    "C:\Windows\system32\wbengine.exe"
    1⤵
    • Suspicious use of AdjustPrivilegeToken
    PID:376
  • C:\Windows\System32\vdsldr.exe
    C:\Windows\System32\vdsldr.exe -Embedding
    1⤵
      PID:1948
    • C:\Windows\System32\vds.exe
      C:\Windows\System32\vds.exe
      1⤵
      • Checks SCSI registry key(s)
      PID:4784

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

    Loading Replay Monitor...

    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/3788-14-0x00007FFB53B50000-0x00007FFB54611000-memory.dmp

      Filesize

      10.8MB

    • memory/3788-76-0x00007FFB53B50000-0x00007FFB54611000-memory.dmp

      Filesize

      10.8MB

    • memory/4536-0-0x00007FFB53B53000-0x00007FFB53B55000-memory.dmp

      Filesize

      8KB

    • memory/4536-1-0x00000000006C0000-0x00000000006CC000-memory.dmp

      Filesize

      48KB