General

  • Target

    SecuriteInfo.com.Trojan.YakbeexMSIL.ZZ4.1057.9472

  • Size

    732KB

  • Sample

    211201-kfb16sahgp

  • MD5

    d47502f0f5b346169fe57cabb1228eee

  • SHA1

    9ddfed11c7fd9beedc44c39ce7f1cac45783b532

  • SHA256

    2d1dda31bb4e7657a3f9878a056323e398590837d3c11b45540013103bfbca97

  • SHA512

    24869686cdea61de8025471bed5f5fe38ea0e5e94aec375cf52a25fc5ec28319314471576f66d5bbe66da45c252a6620cd272dc2690fbc929973a0e0b8eb284b

Malware Config

Extracted

Family

agenttesla

Credentials

  • Protocol:
    smtp
  • Host:
    mail.dairysystems.co.ke
  • Port:
    587
  • Username:
    [email protected]
  • Password:
    2019@systems

Targets

    • Target

      SecuriteInfo.com.Trojan.YakbeexMSIL.ZZ4.1057.9472

    • Size

      732KB

    • MD5

      d47502f0f5b346169fe57cabb1228eee

    • SHA1

      9ddfed11c7fd9beedc44c39ce7f1cac45783b532

    • SHA256

      2d1dda31bb4e7657a3f9878a056323e398590837d3c11b45540013103bfbca97

    • SHA512

      24869686cdea61de8025471bed5f5fe38ea0e5e94aec375cf52a25fc5ec28319314471576f66d5bbe66da45c252a6620cd272dc2690fbc929973a0e0b8eb284b

    • AgentTesla

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

    • AgentTesla Payload

    • Drops file in Drivers directory

    • 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

    • Adds Run key to start application

    • Suspicious use of SetThreadContext

MITRE ATT&CK Enterprise v6

Tasks