General

  • Target

    https://stableapp.online/AirServerConnect3

  • Sample

    240225-qfls9sdb9t

Malware Config

Extracted

Family

stealc

C2

http://147.45.47.72

Attributes
  • url_path

    /eb6f29c6a60b3865.php

Targets

    • Target

      https://stableapp.online/AirServerConnect3

    • Locky

      Ransomware strain released in 2016, with advanced features like anti-analysis.

    • Stealc

      Stealc is an infostealer written in C++.

    • Downloads MZ/PE 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

    • 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.

    • Suspicious use of SetThreadContext

MITRE ATT&CK Matrix ATT&CK v13

Persistence

Boot or Logon Autostart Execution

1
T1547

Registry Run Keys / Startup Folder

1
T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

1
T1547

Registry Run Keys / Startup Folder

1
T1547.001

Credential Access

Unsecured Credentials

3
T1552

Credentials In Files

3
T1552.001

Discovery

Query Registry

3
T1012

System Information Discovery

3
T1082

Collection

Data from Local System

3
T1005

Tasks