Analysis

  • max time kernel
    94s
  • max time network
    149s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    07-08-2024 00:25

General

  • Target

    2024-08-07_35451ac684f221eaa4441ca2b05e4dfc_wannacry.exe

  • Size

    970KB

  • MD5

    35451ac684f221eaa4441ca2b05e4dfc

  • SHA1

    c47e4c4c5da786ba1b99d6d0bcd1f51f7d8e448d

  • SHA256

    a39511c8ef83711e33489a26a07fc5f25faf42d6f0d84537a49a834b67efa15c

  • SHA512

    92b3edb20c496dd29db41e6fc2b65a06530c49c3c0a63e312b4c23923c2ba6b4196df3fb9fbfda16948fdea302ae0c8cc1d5c8cc3ae3941337c99808c053884d

  • SSDEEP

    12288:Ro4d207I28YV+IZ5ZMTcNpLIsriuWVL+JUBK9jLF57RboGnDhCqYVNX3Sf8EYJKp:Re2pKu4e/FKG8tVdLX0uD0

Malware Config

Extracted

Path

C:\Users\Admin\Documents\read_it.txt

Ransom Note
All of your files have been encrypted Your computer was infected with a ransomware virus. Your files have been encrypted and you won't be able to decrypt them without our help. What can I do to get my files back? You can buy our special decryption software, this software will allow you to recover all of your data and remove the ransomware from your computer. The price for the Decryption software is $100. Payment can be made in Bitcoin only. How do I pay, where do I get Bitcoin? Purchasing Bitcoin varies from country to country, you are best advised to do a quick google search yourself to find out how to buy Bitcoin. Many of our customers have reported these sites to be fast and reliable: Coinmama - https://www.coinmama.com Bitpanda - https://www.bitpanda.com MoonPay - https://www.moonpay.com/buy/btc Payment Amount: $100 Payment Mode: BTC / Bitcoin Bitcoin Address: bc1q74lp20gxwuddlrqltxrr7994umdesrdyv2e0z3
URLs

https://www.coinmama.com

https://www.bitpanda.com

https://www.moonpay.com/buy/btc

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.

  • Modifies boot configuration data using bcdedit 1 TTPs 2 IoCs
  • Renames multiple (183) files with added filename extension

    This suggests ransomware activity of encrypting all the files on the system.

  • 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 2 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

  • Drops desktop.ini file(s) 34 IoCs
  • Sets desktop wallpaper using registry 2 TTPs 1 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 47 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\2024-08-07_35451ac684f221eaa4441ca2b05e4dfc_wannacry.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-08-07_35451ac684f221eaa4441ca2b05e4dfc_wannacry.exe"
    1⤵
    • Checks computer location settings
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:4872
    • C:\Users\Admin\AppData\Roaming\DiscordTokenGenerator.exe
      "C:\Users\Admin\AppData\Roaming\DiscordTokenGenerator.exe"
      2⤵
      • Checks computer location settings
      • Drops startup file
      • Executes dropped EXE
      • Drops desktop.ini file(s)
      • Sets desktop wallpaper using registry
      • Modifies registry class
      • Suspicious behavior: AddClipboardFormatListener
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:3312
      • 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:3132
        • C:\Windows\system32\vssadmin.exe
          vssadmin delete shadows /all /quiet
          4⤵
          • Interacts with shadow copies
          PID:2388
        • C:\Windows\System32\Wbem\WMIC.exe
          wmic shadowcopy delete
          4⤵
          • Suspicious use of AdjustPrivilegeToken
          PID:2980
      • 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:4996
        • C:\Windows\system32\bcdedit.exe
          bcdedit /set {default} bootstatuspolicy ignoreallfailures
          4⤵
          • Modifies boot configuration data using bcdedit
          PID:1728
        • C:\Windows\system32\bcdedit.exe
          bcdedit /set {default} recoveryenabled no
          4⤵
          • Modifies boot configuration data using bcdedit
          PID:4844
      • C:\Windows\System32\cmd.exe
        "C:\Windows\System32\cmd.exe" /C wbadmin delete catalog -quiet
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:4244
        • C:\Windows\system32\wbadmin.exe
          wbadmin delete catalog -quiet
          4⤵
          • Deletes backup catalog
          PID:4852
      • 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:4288
  • C:\Windows\system32\vssvc.exe
    C:\Windows\system32\vssvc.exe
    1⤵
    • Suspicious use of AdjustPrivilegeToken
    PID:2792
  • C:\Windows\system32\wbengine.exe
    "C:\Windows\system32\wbengine.exe"
    1⤵
    • Suspicious use of AdjustPrivilegeToken
    PID:2680
  • C:\Windows\System32\vdsldr.exe
    C:\Windows\System32\vdsldr.exe -Embedding
    1⤵
      PID:2244
    • C:\Windows\System32\vds.exe
      C:\Windows\System32\vds.exe
      1⤵
      • Checks SCSI registry key(s)
      PID:1600

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

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    Downloads

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

      Filesize

      970KB

      MD5

      35451ac684f221eaa4441ca2b05e4dfc

      SHA1

      c47e4c4c5da786ba1b99d6d0bcd1f51f7d8e448d

      SHA256

      a39511c8ef83711e33489a26a07fc5f25faf42d6f0d84537a49a834b67efa15c

      SHA512

      92b3edb20c496dd29db41e6fc2b65a06530c49c3c0a63e312b4c23923c2ba6b4196df3fb9fbfda16948fdea302ae0c8cc1d5c8cc3ae3941337c99808c053884d

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

      Filesize

      951B

      MD5

      afaf45eac5b002a2c6bf0a1858e189ee

      SHA1

      deda43ac721981b8cd06cad3647b14487cc3bb9f

      SHA256

      d63c56428b36e922649eb3fe54336bd390218cdcf18530eef61551342745a08e

      SHA512

      b0e6b605bd280fd9658c8203629c2853c8404e931f525f300bd8e4c30ca16d71bb2c7d318a671ef4251691a966a6d08cb22eea048473d53361826b6af33388d2

    • memory/3312-14-0x00007FFA8C640000-0x00007FFA8D101000-memory.dmp

      Filesize

      10.8MB

    • memory/3312-26-0x00007FFA8C640000-0x00007FFA8D101000-memory.dmp

      Filesize

      10.8MB

    • memory/3312-435-0x00007FFA8C640000-0x00007FFA8D101000-memory.dmp

      Filesize

      10.8MB

    • memory/4872-0-0x0000000000990000-0x0000000000A88000-memory.dmp

      Filesize

      992KB

    • memory/4872-1-0x00007FFA8C643000-0x00007FFA8C645000-memory.dmp

      Filesize

      8KB