General

  • Target

    PO.exe

  • Size

    1.5MB

  • Sample

    201109-x3mv98jsex

  • MD5

    f512638b09983b315c24199bffae80cc

  • SHA1

    f62de084522901915b43ce766bca6e3a0797cdf3

  • SHA256

    f937bbe27c6d52452a121bc9aa320c26ae7eada7cadc9dda0fafc2c6b1bd5818

  • SHA512

    a9566748c0c34168fafc88d2e3c1522fc7d1422266fa65b1beafbc82f45a88394d4ada16104b011e97f5e1396fa745d20bee185dc11447f4ad162e5c7ada48d8

Malware Config

Extracted

Credentials

  • Protocol:
    smtp
  • Host:
    mail.acproyectos.com
  • Port:
    587
  • Username:
    fallas@acproyectos.com
  • Password:
    Falfal207@

Targets

    • Target

      PO.exe

    • Size

      1.5MB

    • MD5

      f512638b09983b315c24199bffae80cc

    • SHA1

      f62de084522901915b43ce766bca6e3a0797cdf3

    • SHA256

      f937bbe27c6d52452a121bc9aa320c26ae7eada7cadc9dda0fafc2c6b1bd5818

    • SHA512

      a9566748c0c34168fafc88d2e3c1522fc7d1422266fa65b1beafbc82f45a88394d4ada16104b011e97f5e1396fa745d20bee185dc11447f4ad162e5c7ada48d8

    • MassLogger

      Masslogger is a .NET stealer targeting passwords from browsers, email and cryptocurrency clients.

    • MassLogger log file

      Detects a log file produced by MassLogger.

    • rezer0

      Detects ReZer0, a packer with multiple versions used in various campaigns.

    • UPX packed file

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

    • Checks computer location settings

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

    • Loads dropped DLL

    • Reads user/profile data of web browsers

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

    • 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 Matrix ATT&CK v6

Execution

Scheduled Task

1
T1053

Persistence

Scheduled Task

1
T1053

Privilege Escalation

Scheduled Task

1
T1053

Credential Access

Credentials in Files

1
T1081

Discovery

Query Registry

1
T1012

System Information Discovery

1
T1082

Collection

Data from Local System

1
T1005

Tasks