Overview

overview

10

Static

static

10

HEUR-Troja...23.exe

windows7-x64

10

HEUR-Troja...23.exe

windows10-2004-x64

10

Sharing

Copy URL Twitter E-mail

General

  • Target
    HEUR-Trojan-Ransom.MSIL.Agent.gen-b7715902fd3a8d87f4e019983a00dfcaf425ca2ecc4b5f74abac588970648c23.exe
  • Size 23KB
  • Sample220921-enh7kaaefj
  • SHA256 b7715902fd3a8d87f4e019983a00dfcaf425ca2ecc4b5f74abac588970648c23
  • MD5 SHA1 SHA512 SSDEEP
Score
10/10
chaosevasionransomwarespywarestealer

Malware Config

Extracted

Path

  • C:\Users\Admin\AppData\Roaming\read_it.hta

  • 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
      HEUR-Trojan-Ransom.MSIL.Agent.gen-b7715902fd3a8d87f4e019983a00dfcaf425ca2ecc4b5f74abac588970648c23.exe
    • Size 23KB
    • SHA256 b7715902fd3a8d87f4e019983a00dfcaf425ca2ecc4b5f74abac588970648c23
    • MD5 SHA1 SHA512 SSDEEP
    Score
    10/10
    chaosevasionransomwarespywarestealer

    • Chaos

      Ransomware family first seen in June 2021.

      ransomwarechaos

    • Chaos Ransomware

    • Deletes shadow copies

      Ransomware often targets backup files to inhibit system recovery.

      ransomware

    • Modifies boot configuration data using bcdedit

      ransomwareevasion

    • Deletes backup catalog

      Uses wbadmin.exe to inhibit system recovery.

      ransomware

    • Executes dropped EXE

    • Modifies extensions of user files

      Ransomware generally changes the extension on encrypted files.

      ransomware

    • Checks computer location settings

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

    • Drops startup file

    • 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 v6

Tasks