General

  • Target

    FickerStealer.exe

  • Size

    307KB

  • Sample

    210128-8g5r5m8pj2

  • MD5

    1c213dbc2e5f8646d4c30586b7bcb3d8

  • SHA1

    7a7c24e9bde5666de8763232d9ffa012fe9d18cd

  • SHA256

    90929f4e6bd28d6a197fef323930502ac1a3dcc9de8d4dba02dc6702fd570e14

  • SHA512

    e4b5bf282c771e1ce7152fabd5a44ecd094d5a6b0a61c26d0e25f9df15b55a6efaeaeca6a4f52a84d8d5859b6d3d2e8f15280f619edbc7c5ac4321d2359067da

Malware Config

Targets

    • Target

      FickerStealer.exe

    • Size

      307KB

    • MD5

      1c213dbc2e5f8646d4c30586b7bcb3d8

    • SHA1

      7a7c24e9bde5666de8763232d9ffa012fe9d18cd

    • SHA256

      90929f4e6bd28d6a197fef323930502ac1a3dcc9de8d4dba02dc6702fd570e14

    • SHA512

      e4b5bf282c771e1ce7152fabd5a44ecd094d5a6b0a61c26d0e25f9df15b55a6efaeaeca6a4f52a84d8d5859b6d3d2e8f15280f619edbc7c5ac4321d2359067da

    • Contains code to disable Windows Defender

      A .NET executable tasked with disabling Windows Defender capabilities such as realtime monitoring, blocking at first seen, etc.

    • Modifies Windows Defender Real-time Protection settings

    • Modifies security service

    • Executes dropped EXE

    • Modifies Windows Firewall

    • Drops startup file

    • Loads dropped DLL

    • Reads user/profile data of web browsers

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

    • Accesses cryptocurrency files/wallets, possible credential harvesting

    • Checks installed software on the system

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

    • JavaScript code in executable

    • Looks up external IP address via web service

      Uses a legitimate IP lookup service to find the infected system's external IP.

    • Uses Tor communications

      Malware can proxy its traffic through Tor for more anonymity.

    • Enumerates physical storage devices

      Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

    • Suspicious use of SetThreadContext

MITRE ATT&CK Enterprise v6

Tasks