Analysis

  • max time kernel
    149s
  • max time network
    156s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240426-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240426-enlocale:en-usos:windows10-2004-x64system
  • submitted
    10-05-2024 18:24

General

  • Target

    2024-05-10_43fce97387e88b378f7bfcbb3152cc70_destroyer_wannacry.exe

  • Size

    26KB

  • MD5

    43fce97387e88b378f7bfcbb3152cc70

  • SHA1

    f3aaa47fe088f0d06a34223122675f0388835f18

  • SHA256

    88da5622398543b2c393dae6bd7d4c507046bf96534f8ef3ef153ca45aa32fa1

  • SHA512

    400254b59d01abbb8fdbcabd3e29c1a9ab8ced95f312729e7d70ca2978329a1c9ce413c1d4eb3c11f540f659aefb22fe382374203586cce86abf24ac827e227b

  • SSDEEP

    384:ZtWZPzzxAm1vMMtgTQ22r7OUmgcYfdQPq5lROy5o91yvVAE82vp:A7zxAmN+MFrEgcYwiho90H82B

Malware Config

Signatures

  • Chaos

    Ransomware family first seen in June 2021.

  • Chaos Ransomware 2 IoCs
  • Deletes shadow copies 3 TTPs

    Ransomware often targets backup files to inhibit system recovery.

  • Detects command variations typically used by ransomware 2 IoCs
  • Detects executables containing many references to VEEAM. Observed in ransomware 2 IoCs
  • 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 2 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 2 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 46 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\2024-05-10_43fce97387e88b378f7bfcbb3152cc70_destroyer_wannacry.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-05-10_43fce97387e88b378f7bfcbb3152cc70_destroyer_wannacry.exe"
    1⤵
    • Checks computer location settings
    • Suspicious behavior: AddClipboardFormatListener
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:3724
    • 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:1152
      • 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:2632
        • C:\Windows\system32\vssadmin.exe
          vssadmin delete shadows /all /quiet
          4⤵
          • Interacts with shadow copies
          PID:4724
        • C:\Windows\System32\Wbem\WMIC.exe
          wmic shadowcopy delete
          4⤵
          • Suspicious use of AdjustPrivilegeToken
          PID:3688
      • 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:4548
        • C:\Windows\system32\bcdedit.exe
          bcdedit /set {default} bootstatuspolicy ignoreallfailures
          4⤵
          • Modifies boot configuration data using bcdedit
          PID:3612
        • C:\Windows\system32\bcdedit.exe
          bcdedit /set {default} recoveryenabled no
          4⤵
          • Modifies boot configuration data using bcdedit
          PID:3360
      • C:\Windows\System32\cmd.exe
        "C:\Windows\System32\cmd.exe" /C wbadmin delete catalog -quiet
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:4220
        • C:\Windows\system32\wbadmin.exe
          wbadmin delete catalog -quiet
          4⤵
          • Deletes backup catalog
          PID:2032
      • C:\Windows\system32\NOTEPAD.EXE
        "C:\Windows\system32\NOTEPAD.EXE" C:\Users\Admin\AppData\Roaming\leia-me.txt
        3⤵
          PID:1140
    • C:\Windows\system32\vssvc.exe
      C:\Windows\system32\vssvc.exe
      1⤵
      • Suspicious use of AdjustPrivilegeToken
      PID:4640
    • C:\Windows\system32\wbengine.exe
      "C:\Windows\system32\wbengine.exe"
      1⤵
      • Suspicious use of AdjustPrivilegeToken
      PID:5028
    • C:\Windows\System32\vdsldr.exe
      C:\Windows\System32\vdsldr.exe -Embedding
      1⤵
        PID:1380
      • C:\Windows\System32\vds.exe
        C:\Windows\System32\vds.exe
        1⤵
        • Checks SCSI registry key(s)
        PID:4188

      Network

      MITRE ATT&CK Enterprise v15

      Replay Monitor

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      Downloads

      • C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0\UsageLogs\2024-05-10_43fce97387e88b378f7bfcbb3152cc70_destroyer_wannacry.exe.log

        Filesize

        1KB

        MD5

        baf55b95da4a601229647f25dad12878

        SHA1

        abc16954ebfd213733c4493fc1910164d825cac8

        SHA256

        ee954c5d8156fd8890e582c716e5758ed9b33721258f10e758bdc31ccbcb1924

        SHA512

        24f502fedb1a305d0d7b08857ffc1db9b2359ff34e06d5748ecc84e35c985f29a20d9f0a533bea32d234ab37097ec0481620c63b14ac89b280e75e14d19fd545

      • C:\Users\Admin\AppData\Local\leia-me.txt

        Filesize

        32B

        MD5

        262c289b40f3c1cb49e85031d507f111

        SHA1

        bddc4b7d0f5b0627fa779dfd553dfce83d596ee5

        SHA256

        048aed1c892fda733bdac64b15a8c03f348bf507918f63980dd55a4d05722636

        SHA512

        5b84075184f0c3ba3f46de1684ca5f82f5acb12e65b0b22554838aa739b16242b2f35312863e4be4d2dc54d8527cf050e0137630dfe20b253c4d63ca416825f8

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

        Filesize

        26KB

        MD5

        43fce97387e88b378f7bfcbb3152cc70

        SHA1

        f3aaa47fe088f0d06a34223122675f0388835f18

        SHA256

        88da5622398543b2c393dae6bd7d4c507046bf96534f8ef3ef153ca45aa32fa1

        SHA512

        400254b59d01abbb8fdbcabd3e29c1a9ab8ced95f312729e7d70ca2978329a1c9ce413c1d4eb3c11f540f659aefb22fe382374203586cce86abf24ac827e227b

      • C:\Users\Admin\Desktop\Microsoft Edge.lnk

        Filesize

        1B

        MD5

        d1457b72c3fb323a2671125aef3eab5d

        SHA1

        5bab61eb53176449e25c2c82f172b82cb13ffb9d

        SHA256

        8a8de823d5ed3e12746a62ef169bcf372be0ca44f0a1236abc35df05d96928e1

        SHA512

        ca63c07ad35d8c9fb0c92d6146759b122d4ec5d3f67ebe2f30ddb69f9e6c9fd3bf31a5e408b08f1d4d9cd68120cced9e57f010bef3cde97653fed5470da7d1a0

      • memory/1152-16-0x00007FFD900B0000-0x00007FFD90B71000-memory.dmp

        Filesize

        10.8MB

      • memory/1152-1204-0x00007FFD900B0000-0x00007FFD90B71000-memory.dmp

        Filesize

        10.8MB

      • memory/3724-0-0x00007FFD900B3000-0x00007FFD900B5000-memory.dmp

        Filesize

        8KB

      • memory/3724-1-0x0000000000C30000-0x0000000000C3C000-memory.dmp

        Filesize

        48KB

      • memory/3724-2-0x00007FFD900B0000-0x00007FFD90B71000-memory.dmp

        Filesize

        10.8MB

      • memory/3724-15-0x00007FFD900B0000-0x00007FFD90B71000-memory.dmp

        Filesize

        10.8MB