General

  • Target

    b94bcdf5d6b9f1eb6abe97090993e8c4f66b514dd9c51193f16673e842253d86

  • Size

    6.8MB

  • Sample

    240911-tw392a1cpe

  • MD5

    acb755d083c876f6a80105c17cc61754

  • SHA1

    8ccfc2b30402e76a59ed07873b0ccf589728fd22

  • SHA256

    b94bcdf5d6b9f1eb6abe97090993e8c4f66b514dd9c51193f16673e842253d86

  • SHA512

    2d26da0b24c61e05a66583b548672f00b4351c87669fb8b7e4e71a73da4a2c0e470d7c6aa8072976fe8ca2ac5ea6b75e41f54b426c0d1de06aa118a83283b70b

  • SSDEEP

    196608:DzSpVt4hhiIbZg4T4hac7p6eDcGRY9Dc+/7/MS6a:DWp74hVbehacQeHwDc+/7zb

Malware Config

Extracted

Language
ps1
Deobfuscated
URLs
ps1.dropper

https://www.et-ba.com.tr/temp/b64_akam_kent_2708.ps1

Extracted

Language
ps1
Source
URLs
exe.dropper

https://calbyiris.com/fvz/f2v.zip

exe.dropper

https://calbyiris.com/fvz/f1v.zip

exe.dropper

https://calbyiris.com/fvz/f3v.zip

exe.dropper

https://calbyiris.com/fvz/f4v.zip

exe.dropper

https://calbyiris.com/fvf/

Extracted

Family

stealc

Botnet

Workbaza

C2

http://5.35.36.211

Attributes
  • url_path

    /cadb6378d4b16104.php

Targets

    • Target

      b94bcdf5d6b9f1eb6abe97090993e8c4f66b514dd9c51193f16673e842253d86

    • Size

      6.8MB

    • MD5

      acb755d083c876f6a80105c17cc61754

    • SHA1

      8ccfc2b30402e76a59ed07873b0ccf589728fd22

    • SHA256

      b94bcdf5d6b9f1eb6abe97090993e8c4f66b514dd9c51193f16673e842253d86

    • SHA512

      2d26da0b24c61e05a66583b548672f00b4351c87669fb8b7e4e71a73da4a2c0e470d7c6aa8072976fe8ca2ac5ea6b75e41f54b426c0d1de06aa118a83283b70b

    • SSDEEP

      196608:DzSpVt4hhiIbZg4T4hac7p6eDcGRY9Dc+/7/MS6a:DWp74hVbehacQeHwDc+/7zb

    • NetSupport

      NetSupport is a remote access tool sold as a legitimate system administration software.

    • Stealc

      Stealc is an infostealer 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

    • Downloads MZ/PE file

    • Checks computer location settings

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

    • Executes dropped EXE

    • Loads dropped DLL

    • Reads data files stored by FTP clients

      Tries to access configuration files associated with programs like FileZilla.

    • Reads user/profile data of web browsers

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

    • Unsecured Credentials: Credentials In Files

      Steal credentials from unsecured files.

    • Accesses cryptocurrency files/wallets, possible credential harvesting

    • Adds Run key to start application

    • Checks installed software on the system

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

    • Command and Scripting Interpreter: PowerShell

      Using powershell.exe command.

MITRE ATT&CK Enterprise v15

Tasks