General

  • Target

    e11f1e6bd79d5e12885434dcfd703ae3_JaffaCakes118

  • Size

    3.7MB

  • Sample

    240914-1vk6dsyemq

  • MD5

    e11f1e6bd79d5e12885434dcfd703ae3

  • SHA1

    dffa2772b1f9edf18586d70fe83716a032634570

  • SHA256

    371f46d6159d5fcba2d1531a470938fcd195840aeaf1147ec894407a7387431d

  • SHA512

    05db661decea32032a418e185a9bece0cb1ee6e06e23e7b0cbcd54798c387b3e2ce800c31b5a947570fcd14d63478a2eb862e60060700a7c6f534c6135a2d0f5

  • SSDEEP

    49152:+UJ6ZNXox4SgJhBsfHJq/nCFT4Mv0Pt97NfY7+k5K1fyqv+ih69:+tR4xGnCtvwNSK1aqv+4M

Malware Config

Extracted

Family

agenttesla

Credentials

  • Protocol:
    smtp
  • Host:
    smtp.yandex.ru
  • Port:
    587
  • Username:
    [email protected]
  • Password:
    Godwin@1234

Targets

    • Target

      e11f1e6bd79d5e12885434dcfd703ae3_JaffaCakes118

    • Size

      3.7MB

    • MD5

      e11f1e6bd79d5e12885434dcfd703ae3

    • SHA1

      dffa2772b1f9edf18586d70fe83716a032634570

    • SHA256

      371f46d6159d5fcba2d1531a470938fcd195840aeaf1147ec894407a7387431d

    • SHA512

      05db661decea32032a418e185a9bece0cb1ee6e06e23e7b0cbcd54798c387b3e2ce800c31b5a947570fcd14d63478a2eb862e60060700a7c6f534c6135a2d0f5

    • SSDEEP

      49152:+UJ6ZNXox4SgJhBsfHJq/nCFT4Mv0Pt97NfY7+k5K1fyqv+ih69:+tR4xGnCtvwNSK1aqv+4M

    • AgentTesla

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

    • Modifies WinLogon for persistence

    • Modifies visiblity of hidden/system files in Explorer

    • UAC bypass

    • AgentTesla payload

    • Credentials from Password Stores: Credentials from Web Browsers

      Malicious Access or copy of Web Browser Credential store.

    • Checks computer location settings

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

    • 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.

    • Unsecured Credentials: Credentials In Files

      Steal credentials from unsecured files.

    • Accesses Microsoft Outlook profiles

    • Checks whether UAC is enabled

    • 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