Overview

overview

10

Static

static

10

81ac75b6a7...20.exe

windows7-x64

10

81ac75b6a7...20.exe

windows10-2004-x64

10

Sharing

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General

  • Target
    81ac75b6a76ce637e83ce4b25d801f5bb7ce264b723a29f1efe268889e632f20.exe
  • Size 26KB
  • Sample240128-3vedysddc2
  • SHA256 3e0b5146acf2d5aaa9acd6f759f26db8c689bd1373b738ffb172dd7cf500c950
  • MD5 SHA1 SHA512 SSDEEP
Score
10/10
chaosransomwarespywarestealer

Malware Config

Extracted

Path

  • C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Crashpad\read_it.txt

  • 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

Targets

    • Target
      81ac75b6a76ce637e83ce4b25d801f5bb7ce264b723a29f1efe268889e632f20.exe
    • Size 26KB
    • SHA256 3e0b5146acf2d5aaa9acd6f759f26db8c689bd1373b738ffb172dd7cf500c950
    • MD5 SHA1 SHA512 SSDEEP
    Score
    10/10
    chaosransomwarespywarestealer

    • Chaos

      Ransomware family first seen in June 2021.

      ransomwarechaos

    • Chaos Ransomware

    • Detects command variations typically used by ransomware

    • Renames multiple (163) files with added filename extension

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

      ransomware

    • Checks computer location settings

      Looks up country code configured in the registry, likely geofence.

    • Drops startup file

    • Executes dropped EXE

    • Reads user/profile data of web browsers

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

      spywarestealer

    • Drops desktop.ini file(s)

    behavioral1behavioral2

MITRE ATT&CK Enterprise v15

Tasks