General

  • Target

    48b0afb9f404d55c311994ab4da41e3aa6dacd23a1b8e0de1addfe6f9fea4d11

  • Size

    5.0MB

  • Sample

    240112-3j458sgabl

  • MD5

    f181b08d7d06f955a53a2593b3596991

  • SHA1

    c2af74c384c68491121799a8d89b5cd4322c41b2

  • SHA256

    48b0afb9f404d55c311994ab4da41e3aa6dacd23a1b8e0de1addfe6f9fea4d11

  • SHA512

    5784992d21762b523176b3a35e5611916568366fc3abf06cff54c6c1a2b77792f5a50f040facc4b3c786edc31d71b1a41d26a3708483289b3867e949fd515731

  • SSDEEP

    49152:lhUCgfFMiW4UnAnkOh9pjA7E9HgFRJ9Tp4mMeJmjMjK0JlUJkGf3yIGul:s9AdHBJmg1wJkGZl

Malware Config

Extracted

Family

stealc

C2

http://185.172.128.79

Attributes
  • url_path

    /3886d2276f6914c4.php

rc4.plain

Targets

    • Target

      48b0afb9f404d55c311994ab4da41e3aa6dacd23a1b8e0de1addfe6f9fea4d11

    • Size

      5.0MB

    • MD5

      f181b08d7d06f955a53a2593b3596991

    • SHA1

      c2af74c384c68491121799a8d89b5cd4322c41b2

    • SHA256

      48b0afb9f404d55c311994ab4da41e3aa6dacd23a1b8e0de1addfe6f9fea4d11

    • SHA512

      5784992d21762b523176b3a35e5611916568366fc3abf06cff54c6c1a2b77792f5a50f040facc4b3c786edc31d71b1a41d26a3708483289b3867e949fd515731

    • SSDEEP

      49152:lhUCgfFMiW4UnAnkOh9pjA7E9HgFRJ9Tp4mMeJmjMjK0JlUJkGf3yIGul:s9AdHBJmg1wJkGZl

    • Detect Fabookie payload

    • Fabookie

      Fabookie is facebook account info stealer.

    • Glupteba

      Glupteba is a modular loader written in Golang with various components.

    • Glupteba payload

    • Stealc

      Stealc is an infostealer written in C++.

    • UAC bypass

    • Windows security bypass

    • Blocklisted process makes network request

    • Downloads MZ/PE file

    • Modifies Windows Firewall

    • Checks BIOS information in registry

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

    • Checks computer location settings

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

    • Drops startup file

    • 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.

    • Registers COM server for autorun

    • UPX packed file

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

    • Windows security modification

    • 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.

    • Checks whether UAC is enabled

    • Drops Chrome extension

    • Drops desktop.ini file(s)

    • 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

    • Manipulates WinMonFS driver.

      Roottkits write to WinMonFS to hide directories/files from being detected.

    • Modifies boot configuration data using bcdedit

    • Drops file in System32 directory

    • Suspicious use of SetThreadContext

MITRE ATT&CK Enterprise v15

Tasks