Analysis

  • max time kernel
    16s
  • max time network
    17s
  • platform
    windows7_x64
  • resource
    win7-20240705-en
  • resource tags

    arch:x64arch:x86image:win7-20240705-enlocale:en-usos:windows7-x64system
  • submitted
    22-08-2024 20:22

General

  • Target

    2024-08-22_c3401fc4603ce678596ae40f8bb194e9_wannacry.exe

  • Size

    738KB

  • MD5

    c3401fc4603ce678596ae40f8bb194e9

  • SHA1

    7786d4c9d942f9d3f78f873e7a9602701297853b

  • SHA256

    4f3c2e4fc7b10e68fabf7e4a15b02f28fe27ee84fa3843ceafacc7084da79434

  • SHA512

    ae9430dec06833f1a9a672c319ae9899fbc2546b03305acd66c3b1c4de246f67fb11552c6d3e9b6cb1ada67ef41aabd8490459a2872a02d48222436f449ade0c

  • SSDEEP

    6144:P5dkccXS5yMJncAlhkQiaBhoIudR38ZJJchBRsZVCw+r9oMQzEua:PkccXS5yMxcAlDVBhotR+2bd2yF

Malware Config

Extracted

Path

C:\Users\Admin\Documents\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: 0.1473766 BTC Bitcoin Address: bc1qlnzcep4l4ac0ttdrq7awxev9ehu465f2vpt9x0

Signatures

  • Chaos

    Ransomware family first seen in June 2021.

  • Chaos Ransomware 3 IoCs
  • Looks for VirtualBox Guest Additions in registry 2 TTPs 2 IoCs
  • Looks for VMWare Tools registry key 2 TTPs 2 IoCs
  • Checks BIOS information in registry 2 TTPs 4 IoCs

    BIOS information is often read in order to detect sandboxing environments.

  • Drops startup file 1 IoCs
  • Executes dropped EXE 1 IoCs
  • Loads dropped DLL 2 IoCs
  • Drops desktop.ini file(s) 6 IoCs
  • Maps connected drives based on registry 3 TTPs 4 IoCs

    Disk information is often read in order to detect sandboxing environments.

  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s).

  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 6 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\2024-08-22_c3401fc4603ce678596ae40f8bb194e9_wannacry.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-08-22_c3401fc4603ce678596ae40f8bb194e9_wannacry.exe"
    1⤵
    • Looks for VirtualBox Guest Additions in registry
    • Looks for VMWare Tools registry key
    • Checks BIOS information in registry
    • Loads dropped DLL
    • Maps connected drives based on registry
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2500
    • C:\Users\Admin\AppData\Roaming\svchost.exe
      "C:\Users\Admin\AppData\Roaming\svchost.exe"
      2⤵
      • Looks for VirtualBox Guest Additions in registry
      • Looks for VMWare Tools registry key
      • Checks BIOS information in registry
      • Drops startup file
      • Executes dropped EXE
      • Loads dropped DLL
      • Drops desktop.ini file(s)
      • Maps connected drives based on registry
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:2684
      • C:\Windows\system32\WerFault.exe
        C:\Windows\system32\WerFault.exe -u -p 2684 -s 796
        3⤵
          PID:2672

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

    Loading Replay Monitor...

    Downloads

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

      Filesize

      738KB

      MD5

      c3401fc4603ce678596ae40f8bb194e9

      SHA1

      7786d4c9d942f9d3f78f873e7a9602701297853b

      SHA256

      4f3c2e4fc7b10e68fabf7e4a15b02f28fe27ee84fa3843ceafacc7084da79434

      SHA512

      ae9430dec06833f1a9a672c319ae9899fbc2546b03305acd66c3b1c4de246f67fb11552c6d3e9b6cb1ada67ef41aabd8490459a2872a02d48222436f449ade0c

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

      Filesize

      964B

      MD5

      4217b8b83ce3c3f70029a056546f8fd0

      SHA1

      487cdb5733d073a0427418888e8f7070fe782a03

      SHA256

      7d767e907be373c680d1f7884d779588eb643bebb3f27bf3b5ed4864aa4d8121

      SHA512

      2a58c99fa52f99c276e27eb98aef2ce1205f16d1e37b7e87eb69e9ecda22b578195a43f1a7f70fead6ba70421abf2f85c917551c191536eaf1f3011d3d24f740

    • \Users\Admin\AppData\Local\Temp\Runtime.MSIL.1.0.0.0\sByte.dll

      Filesize

      39KB

      MD5

      d80d1b6d9a6d5986fa47f6f8487030e1

      SHA1

      8f5773bf9eca43b079c1766b2e9f44cc90bd9215

      SHA256

      446128f1712da8064d0197376184315cb529ed26ed9122f7b171bb208e22c0c3

      SHA512

      9fcf0105c2c9ee81c526d41633d93579bb8e2837989d77fb4a6523440415ec2d7fa46ac9ae4e55ecebd99126837817ac308cc079475de02667b21727a43d74cc

    • memory/2500-18-0x000007FEF5CE0000-0x000007FEF66CC000-memory.dmp

      Filesize

      9.9MB

    • memory/2500-1-0x00000000012C0000-0x000000000137E000-memory.dmp

      Filesize

      760KB

    • memory/2500-2-0x00000000004C0000-0x00000000004CC000-memory.dmp

      Filesize

      48KB

    • memory/2500-3-0x000007FEF5CE0000-0x000007FEF66CC000-memory.dmp

      Filesize

      9.9MB

    • memory/2500-7-0x00000000004E0000-0x00000000004E8000-memory.dmp

      Filesize

      32KB

    • memory/2500-0-0x000007FEF5CE3000-0x000007FEF5CE4000-memory.dmp

      Filesize

      4KB

    • memory/2684-13-0x00000000012F0000-0x00000000013AE000-memory.dmp

      Filesize

      760KB

    • memory/2684-16-0x000007FEF5CE0000-0x000007FEF66CC000-memory.dmp

      Filesize

      9.9MB

    • memory/2684-17-0x000007FEF5CE0000-0x000007FEF66CC000-memory.dmp

      Filesize

      9.9MB

    • memory/2684-162-0x000007FEF5CE0000-0x000007FEF66CC000-memory.dmp

      Filesize

      9.9MB