General

  • Target

    f68c119b9e5b1365aa6f9b333e5222f7d35c6a67c3ac6a2f0fea4a7e5d04c726

  • Size

    794KB

  • Sample

    220521-bzvsysfghq

  • MD5

    bca62c44f7880c139eaf0813569ecab2

  • SHA1

    18751a62e514849a04e9f3c145aa95a3b887009e

  • SHA256

    f68c119b9e5b1365aa6f9b333e5222f7d35c6a67c3ac6a2f0fea4a7e5d04c726

  • SHA512

    4f3e9c821099f46ca2ec647cbedc6be724d1e6f46980cf89e2e4ca9713032b8fcd963325f80cafa6640001bd9223276d56adc3a9516053301d0aa3ebd7ae2bad

Malware Config

Extracted

Credentials

  • Protocol:
    smtp
  • Host:
    mail.privateemail.com
  • Port:
    587
  • Username:
    [email protected]
  • Password:
    1234567890

Targets

    • Target

      DHL Document.exe

    • Size

      877KB

    • MD5

      8667413de7acc939e5157862390e49ca

    • SHA1

      e09365296e8bcb1d1842032d3e31d2b6e880a75e

    • SHA256

      d2aba15a355f2587296a0d3de5416fe3ad7a644aaf39e9b8c5be0125a346abc6

    • SHA512

      0e64a10bd8925cc5f4be46c2d9ee4f0d5dac8e482ff86b5658d198ed7b30732e138e2b48e5a136d6269b8ee4c357e6454b31d184402c0477ac2985180c02ba3a

    • CoreEntity .NET Packer

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

    • 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 packer

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

    • 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 v6

Tasks