Overview

overview

10

Static

static

blesss.exe

windows7_x64

10

blesss.exe

windows10_x64

10

Sharing

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General

  • Target
    blesss.exe
  • Size 892KB
  • Sample201109-b91dlb9k7s
  • SHA256 426110407bdba9dfe5a4f6d39d6369c8baf47008d7738765c3eb7d1ee62e3344
  • MD5 SHA1 SHA512
Score
10/10
massloggercoreentityrezer0spywarestealer

Malware Config

Extracted

Credentials
  • Protocol

    smtp
  • Host

    mail.privateemail.com
  • Port

    587
  • Username

    [email protected]
  • Password

    Whyworry#@

Targets

    • Target
      blesss.exe
    • Size 892KB
    • SHA256 426110407bdba9dfe5a4f6d39d6369c8baf47008d7738765c3eb7d1ee62e3344
    • MD5 SHA1 SHA512
    Score
    10/10
    massloggercoreentityrezer0spywarestealer

    • CoreEntity .NET Packer

      A .NET packer called CoreEntity where it has embedded the payload as a BitMap object which is later decrypted.

      coreentity

    • MassLogger

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

      stealerspywaremasslogger

    • MassLogger log file

      Detects a log file produced by MassLogger.

    • rezer0

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

      rezer0

    • Reads user/profile data of web browsers

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

      spyware

    • 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

    behavioral1behavioral2

MITRE ATT&CK Enterprise v6

Tasks