Resubmissions

17/09/2024, 21:20

240917-z6styawanp10

07/09/2024, 15:18

240907-spsdhszekm3

General

  • Target
    c22dc50dc2bbe4422c7f68d26ab95eb9.zip
  • Size 27KB
  • Sample240917-z6styawanp
  • SHA256 08f327fa721faf4fa748844b307ffb66ee56370e705c0b34942d4084a88ab469
  • MD5 SHA1 SHA512 SSDEEP

Malware Config

Extracted

Language
  • ps1

Deobfuscated
Source
URLs
  • ps1.dropper

    https://ia601606.us.archive.org/10/items/deathnote_202407/deathnote.jpg

  • exe.dropper

    https://ia601606.us.archive.org/10/items/deathnote_202407/deathnote.jpg

Extracted

Family
  • xworm

Version
  • 5.0

C2
  • 127.0.0.1:7000

Mutex
  • pkJ7wMfjO0FqUPb3

Attributes
  • install_file

    USB.exe

aes.plain

Targets

    • Target
      c22dc50dc2bbe4422c7f68d26ab95eb9.js
    • Size 92KB
    • SHA256 a58fe10a096397b8eb9404af4ab8dfe14b1d88ae043f480f93697591ae262626
    • MD5 SHA1 SHA512 SSDEEP
    • Detect Xworm Payload

    • XenArmor Suite

      XenArmor is as suite of password recovery tools for various application.

    • Xworm

      Xworm is a remote access trojan written in C#.

    • Credentials from Password Stores: Credentials from Web Browsers

      Malicious Access or copy of Web Browser Credential store.

    • Blocklisted process makes network request

    • Command and Scripting Interpreter: PowerShell

      Run Powershell and hide display window.

    • Downloads MZ/PE file

    • Drops file in Drivers directory

    • Looks for Xen service registry key.

    • Sets service image path in registry

    • ACProtect 1.3x - 1.4x DLL software

      Detects file using ACProtect software.

    • Credentials from Password Stores: Windows Credential Manager

      Suspicious access to Credentials History.

    • Event Triggered Execution: Component Object Model Hijacking

      Adversaries may establish persistence by executing malicious content triggered by hijacked references to Component Object Model (COM) objects.

    • Executes dropped EXE

    • Loads dropped DLL

    • Reads WinSCP keys stored on the system

      Tries to access WinSCP stored sessions.

    • Reads data files stored by FTP clients

      Tries to access configuration files associated with programs like FileZilla.

    • Reads local data of messenger clients

      Infostealers often target stored data of messaging applications, which can include saved credentials and account information.

    • Reads user/profile data of local email clients

      Email clients store some user data on disk where infostealers will often target it.

    • Reads user/profile data of web browsers

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

    • UPX packed file

      Detects executables packed with UPX/modified UPX open source packer.

    • Accesses Microsoft Outlook accounts

    • Checks installed software on the system

      Looks up Uninstall key entries in the registry to enumerate software on the system.

    • Enumerates connected drives

      Attempts to read the root path of hard drives other than the default C: drive.

    • Legitimate hosting services abused for malware hosting/C2

    • Maps connected drives based on registry

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

    • Mark of the Web detected: This indicates that the page was originally saved or cloned.

    • Drops file in System32 directory

    • Suspicious use of SetThreadContext

MITRE ATT&CK Enterprise v15

Tasks