Analysis

  • max time kernel
    95s
  • max time network
    133s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    06-10-2024 01:02

General

  • Target

    2024-10-06_8f1eaaf77aa07ceb4af188ab50db4ed3_wannacry.exe

  • Size

    7.2MB

  • MD5

    8f1eaaf77aa07ceb4af188ab50db4ed3

  • SHA1

    15148c0a2044805762d8494600386f49aec07b55

  • SHA256

    4c595e8e612d7663804656ecfb65d3a833e585652ba8f15f486611873420e9a1

  • SHA512

    d8ffa382cb99d3d7a1659a66fe6d586fea42aec9c21243e3d9b03928faf139809a435cb51dd0ec8ca5902b60a3effe8847637751a4075297ca189b4515e1ffcc

  • SSDEEP

    49152:MiZLYKiEYSkVodi19NPftSFwkrJxWxhlMOkj7EqTUOgA37MJ+WftYs:

Malware Config

Extracted

Path

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

Family

chaos

Ransom Note
----> Chaos is multi language ransomware. Translate your note to any language <---- 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 software is $1,500. 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 - hxxps://www.coinmama.com Bitpanda - hxxps://www.bitpanda.com Payment informationAmount: 0.0145 BTC Bitcoin Address: 1Fv8VepbEL9tVmBAzu5zvH8JcLDopUVfoS
Wallets

1Fv8VepbEL9tVmBAzu5zvH8JcLDopUVfoS

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
  • 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
  • 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\2024-10-06_8f1eaaf77aa07ceb4af188ab50db4ed3_wannacry.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-10-06_8f1eaaf77aa07ceb4af188ab50db4ed3_wannacry.exe"
    1⤵
    • Checks computer location settings
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:4756
    • 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)
      • Sets desktop wallpaper using registry
      • Modifies registry class
      • Suspicious behavior: AddClipboardFormatListener
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:4620
      • 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:2964
        • C:\Windows\system32\vssadmin.exe
          vssadmin delete shadows /all /quiet
          4⤵
          • Interacts with shadow copies
          PID:2828
        • C:\Windows\System32\Wbem\WMIC.exe
          wmic shadowcopy delete
          4⤵
          • Suspicious use of AdjustPrivilegeToken
          PID:4252
      • 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:3196
        • C:\Windows\system32\bcdedit.exe
          bcdedit /set {default} bootstatuspolicy ignoreallfailures
          4⤵
          • Modifies boot configuration data using bcdedit
          PID:2144
        • C:\Windows\system32\bcdedit.exe
          bcdedit /set {default} recoveryenabled no
          4⤵
          • Modifies boot configuration data using bcdedit
          PID:3100
      • C:\Windows\System32\cmd.exe
        "C:\Windows\System32\cmd.exe" /C wbadmin delete catalog -quiet
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:1436
        • C:\Windows\system32\wbadmin.exe
          wbadmin delete catalog -quiet
          4⤵
          • Deletes backup catalog
          PID:2272
      • 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:2916
  • C:\Windows\system32\vssvc.exe
    C:\Windows\system32\vssvc.exe
    1⤵
    • Suspicious use of AdjustPrivilegeToken
    PID:3484
  • C:\Windows\system32\wbengine.exe
    "C:\Windows\system32\wbengine.exe"
    1⤵
    • Suspicious use of AdjustPrivilegeToken
    PID:2976
  • C:\Windows\System32\vdsldr.exe
    C:\Windows\System32\vdsldr.exe -Embedding
    1⤵
      PID:1152
    • C:\Windows\System32\vds.exe
      C:\Windows\System32\vds.exe
      1⤵
      • Checks SCSI registry key(s)
      PID:4140

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

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    Downloads

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

      Filesize

      7.2MB

      MD5

      8f1eaaf77aa07ceb4af188ab50db4ed3

      SHA1

      15148c0a2044805762d8494600386f49aec07b55

      SHA256

      4c595e8e612d7663804656ecfb65d3a833e585652ba8f15f486611873420e9a1

      SHA512

      d8ffa382cb99d3d7a1659a66fe6d586fea42aec9c21243e3d9b03928faf139809a435cb51dd0ec8ca5902b60a3effe8847637751a4075297ca189b4515e1ffcc

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

      Filesize

      953B

      MD5

      6e12ca86b9124f0bd0bde3bc0dcdd939

      SHA1

      b6de4262019d53990ef8159a5c191684456fa3c7

      SHA256

      1e701be7f8ddd4812524a5b89edd0a2e4d6c74ca9407b638d1ad8d7d5ce50b41

      SHA512

      2132552940f1d6b8c347eadcd92f90a5095156c7be705e454410de69743fa4f717ad58d05b689ed3ed48d5f30e4927c6305be4027bf88b42bc513ac286a836c8

    • memory/4620-15-0x00007FFCCDA20000-0x00007FFCCE4E1000-memory.dmp

      Filesize

      10.8MB

    • memory/4620-73-0x00007FFCCDA20000-0x00007FFCCE4E1000-memory.dmp

      Filesize

      10.8MB

    • memory/4756-0-0x00007FFCCDA23000-0x00007FFCCDA25000-memory.dmp

      Filesize

      8KB

    • memory/4756-1-0x0000000000340000-0x0000000000A76000-memory.dmp

      Filesize

      7.2MB

    • memory/4756-2-0x00007FFCCDA23000-0x00007FFCCDA25000-memory.dmp

      Filesize

      8KB