General

  • Target
    22032025_0113_21032025_FACTURAS.gz
  • Size 36KB
  • Sample250322-blcefsymt9
  • SHA256 a122f35e32fc7dfc16f5228e7accf3fb16f009e0ae023979b1946c3c08cf0380
  • MD5 SHA1 SHA512 SSDEEP

Malware Config

Extracted

Family
  • stealerium

C2
  • https://api.telegram.org/bot7756107542:AAEhuCgRX-ckFVwps3xqgrtyb3JVRKo9Tog/sendMessage?chat_id=

Targets

    • Target
      FACTURAS.exe
    • Size 95KB
    • SHA256 5d2dd8452a0048b9d23499187fafc6e2cfd25efb72eee7f92657352e954bc160
    • MD5 SHA1 SHA512 SSDEEP
    • Stealerium

      An open source info stealer written in C# first seen in May 2022.

    • Stealerium family

    • Suspicious use of NtCreateUserProcessOtherParentProcess

    • Uses browser remote debugging

      Can be used control the browser and steal sensitive information such as credentials and session cookies.

    • Checks computer location settings

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

    • Reads user/profile data of web browsers

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

    • Accesses Microsoft Outlook profiles

    • Looks up external IP address via web service

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

    • Suspicious use of SetThreadContext

MITRE ATT&CK Enterprise v15

Tasks