Analysis

  • max time kernel
    148s
  • max time network
    156s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240412-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240412-enlocale:en-usos:windows10-2004-x64system
  • submitted
    24-04-2024 19:36

General

  • Target

    2024-04-24_56db115b1910067cb1011b55d4d0763d_chaos_destroyer_wannacry.exe

  • Size

    23KB

  • MD5

    56db115b1910067cb1011b55d4d0763d

  • SHA1

    37672ddd4bf1deaaf8aff7fbdaad8455170b3033

  • SHA256

    1512810ee7380778dff64705a8b0760fd11403eae4d0f98f7cfdd6b2b57a10af

  • SHA512

    30120552efb26292d5058ccffa50efa7b6e5f509edacbb12e1becdd04935ac211c9fb23433ea1a8c33682f326791bdab4ede714a5d7fcd49638fab181367e0ec

  • SSDEEP

    384:z3MLWHn3kIjf7SxlR2/p5b14+CDJyr91Czxb5YeG:/n3kIP64pR14+6yr9ixbueG

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: 0.1473766 BTC Bitcoin Address: bc1qlnzcep4l4ac0ttdrq7awxev9ehu465f2vpt9x0

Signatures

  • Chaos

    Ransomware family first seen in June 2021.

  • Chaos Ransomware 2 IoCs
  • Detects command variations typically used by ransomware 2 IoCs
  • 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
  • Enumerates physical storage devices 1 TTPs

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

  • Modifies registry class 1 IoCs
  • Opens file in notepad (likely ransom note) 1 IoCs
  • Suspicious behavior: AddClipboardFormatListener 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 53 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 4 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\2024-04-24_56db115b1910067cb1011b55d4d0763d_chaos_destroyer_wannacry.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-04-24_56db115b1910067cb1011b55d4d0763d_chaos_destroyer_wannacry.exe"
    1⤵
    • Checks computer location settings
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:3664
    • 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:1616
      • 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:1488

Network

MITRE ATT&CK Matrix ATT&CK v13

Credential Access

Unsecured Credentials

1
T1552

Credentials In Files

1
T1552.001

Discovery

Query Registry

1
T1012

System Information Discovery

2
T1082

Collection

Data from Local System

1
T1005

Replay Monitor

Loading Replay Monitor...

Downloads

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

    23KB

    MD5

    56db115b1910067cb1011b55d4d0763d

    SHA1

    37672ddd4bf1deaaf8aff7fbdaad8455170b3033

    SHA256

    1512810ee7380778dff64705a8b0760fd11403eae4d0f98f7cfdd6b2b57a10af

    SHA512

    30120552efb26292d5058ccffa50efa7b6e5f509edacbb12e1becdd04935ac211c9fb23433ea1a8c33682f326791bdab4ede714a5d7fcd49638fab181367e0ec

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

    964B

    MD5

    4217b8b83ce3c3f70029a056546f8fd0

    SHA1

    487cdb5733d073a0427418888e8f7070fe782a03

    SHA256

    7d767e907be373c680d1f7884d779588eb643bebb3f27bf3b5ed4864aa4d8121

    SHA512

    2a58c99fa52f99c276e27eb98aef2ce1205f16d1e37b7e87eb69e9ecda22b578195a43f1a7f70fead6ba70421abf2f85c917551c191536eaf1f3011d3d24f740

  • memory/1616-15-0x00007FFF4ABE0000-0x00007FFF4B6A1000-memory.dmp
    Filesize

    10.8MB

  • memory/1616-69-0x00007FFF4ABE0000-0x00007FFF4B6A1000-memory.dmp
    Filesize

    10.8MB

  • memory/3664-0-0x0000000000A60000-0x0000000000A6C000-memory.dmp
    Filesize

    48KB

  • memory/3664-1-0x00007FFF4ABE0000-0x00007FFF4B6A1000-memory.dmp
    Filesize

    10.8MB

  • memory/3664-14-0x00007FFF4ABE0000-0x00007FFF4B6A1000-memory.dmp
    Filesize

    10.8MB