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General

  • Target

    RFQ230163R01.xls

  • Size

    1.1MB

  • Sample

    230918-slhd5sce49

  • MD5

    941f74a926b1cdf782549e02f1aea9c5

  • SHA1

    c12b76ef6afb7d8ab70cf7ea573c411aff9f9021

  • SHA256

    dfa91027ec1477cf162e6a856177147be4ef459b8d462c657c6bb589fd823f5e

  • SHA512

    e5314028e581b35d65e8123471971e68ba73d2670dadd61a5f66a40a9e3a01226b2ee4b874e990160ba3e8b9681a32e91192c073a22aa90c017d3b1faa778f1b

  • SSDEEP

    24576:GWQmmav30xSZy6w6Vc6NagZyew6VK6NF7o54VQcTAZi6vjh3KwK0:7QmmQ306+6Vd3K6VvNVrTn6vjh6x

Malware Config

Extracted

Family

agenttesla

Credentials

Targets

    • Target

      RFQ230163R01.xls

    • Size

      1.1MB

    • MD5

      941f74a926b1cdf782549e02f1aea9c5

    • SHA1

      c12b76ef6afb7d8ab70cf7ea573c411aff9f9021

    • SHA256

      dfa91027ec1477cf162e6a856177147be4ef459b8d462c657c6bb589fd823f5e

    • SHA512

      e5314028e581b35d65e8123471971e68ba73d2670dadd61a5f66a40a9e3a01226b2ee4b874e990160ba3e8b9681a32e91192c073a22aa90c017d3b1faa778f1b

    • SSDEEP

      24576:GWQmmav30xSZy6w6Vc6NagZyew6VK6NF7o54VQcTAZi6vjh3KwK0:7QmmQ306+6Vd3K6VvNVrTn6vjh6x

    • AgentTesla

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

    • Blocklisted process makes network request

    • Downloads MZ/PE file

    • Executes dropped EXE

    • Loads dropped DLL

    • 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.

    • 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 v15

Tasks