General

  • Target

    avanss.exe

  • Size

    75KB

  • Sample

    240903-jz1yza1grl

  • MD5

    c4c8795510f78d2251f0b746d46429b5

  • SHA1

    2caf2fc8895b7a88c32281bdeff3ce7fb298d6bf

  • SHA256

    8b8b3f8f54abd3b9b6b2620362f5e0773f9859ae468fdd4c816797b261b50ea0

  • SHA512

    4ab80bc55a1fc2cfde22545799a27004bbfd0fcc4d106daff6fd1589708f5d82d1a9b4361395dc2a90155a97efa2ec56c9c7703844f9af807274ec91edcc4e97

  • SSDEEP

    1536:4Ub2to+b4SFSN007ZxgOzdupbj4VQ3aDwFd:4Ub2trb4SQNl3Vq3aDa

Malware Config

Extracted

Credentials

  • Protocol:
    smtp
  • Host:
    smtps.aruba.it
  • Port:
    587
  • Username:
    [email protected]
  • Password:
    Franco2016!

Extracted

Family

agenttesla

Credentials

Targets

    • Target

      avanss.exe

    • Size

      75KB

    • MD5

      c4c8795510f78d2251f0b746d46429b5

    • SHA1

      2caf2fc8895b7a88c32281bdeff3ce7fb298d6bf

    • SHA256

      8b8b3f8f54abd3b9b6b2620362f5e0773f9859ae468fdd4c816797b261b50ea0

    • SHA512

      4ab80bc55a1fc2cfde22545799a27004bbfd0fcc4d106daff6fd1589708f5d82d1a9b4361395dc2a90155a97efa2ec56c9c7703844f9af807274ec91edcc4e97

    • SSDEEP

      1536:4Ub2to+b4SFSN007ZxgOzdupbj4VQ3aDwFd:4Ub2trb4SQNl3Vq3aDa

    • AgentTesla

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

    • Credentials from Password Stores: Credentials from Web Browsers

      Malicious Access or copy of Web Browser Credential store.

    • 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.

    • Adds Run key to start application

    • 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