General

  • Target

    c9228f7c2591dfb8dfe00051f5333c1bb8d6a996091d3b5eea5f36a86599b626

  • Size

    100KB

  • Sample

    240710-bh9wjsxbmm

  • MD5

    db16f5775e54cc49973a1cfd276ff6a0

  • SHA1

    90991f44f34ce0ee48a054fbcbeb30156711ad0d

  • SHA256

    c9228f7c2591dfb8dfe00051f5333c1bb8d6a996091d3b5eea5f36a86599b626

  • SHA512

    94e80d945344fa808456df83ea16b4d8bf19823854be038c92d76b3eecd117ebafb3f717314c9eb343935a40492fea8f46f888bb872adf1a717d3222cf72f1cc

  • SSDEEP

    1536:mC2a7OAoM7EdpKuCiZOIyf5NF7yXh5nPRoej7oNhuCtGN8ZA55:2ahECuCiXEF7yh5Puej06Hau55

Malware Config

Extracted

Credentials

  • Protocol:
    smtp
  • Host:
    mail.astramedikal.com
  • Port:
    587
  • Username:
    [email protected]
  • Password:
    muhasebe2020*

Extracted

Family

agenttesla

Credentials

Targets

    • Target

      c9228f7c2591dfb8dfe00051f5333c1bb8d6a996091d3b5eea5f36a86599b626

    • Size

      100KB

    • MD5

      db16f5775e54cc49973a1cfd276ff6a0

    • SHA1

      90991f44f34ce0ee48a054fbcbeb30156711ad0d

    • SHA256

      c9228f7c2591dfb8dfe00051f5333c1bb8d6a996091d3b5eea5f36a86599b626

    • SHA512

      94e80d945344fa808456df83ea16b4d8bf19823854be038c92d76b3eecd117ebafb3f717314c9eb343935a40492fea8f46f888bb872adf1a717d3222cf72f1cc

    • SSDEEP

      1536:mC2a7OAoM7EdpKuCiZOIyf5NF7yXh5nPRoej7oNhuCtGN8ZA55:2ahECuCiXEF7yh5Puej06Hau55

    • AgentTesla

      Agent Tesla is a remote access tool (RAT) written in visual basic.

    • Detect Xworm Payload

    • Xworm

      Xworm is a remote access trojan written in C#.

    • Checks computer location settings

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

    • Deletes itself

    • Executes dropped EXE

    • Loads dropped DLL

    • Reads WinSCP keys stored on the system

      Tries to access WinSCP stored sessions.

    • Reads data files stored by FTP clients

      Tries to access configuration files associated with programs like FileZilla.

    • Reads user/profile data of local email clients

      Email clients store some user data on disk where infostealers will often target it.

    • 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 Enterprise v15

Tasks