General

  • Target

    Payment Advice.pdf,'.zip

  • Size

    679KB

  • Sample

    210419-bale7v6vmn

  • MD5

    811d46d4afe7e393f21f78e3438ba4b5

  • SHA1

    91b6faeb76db105c0a20e7a7df2e65d122b4d7b3

  • SHA256

    084f1c7e721b04fcdf9d147e3c35ae7a00e6b178744b015c039df6064fc0d4f9

  • SHA512

    31664d2bb1c320cb1b83b90bae7b1bbc42234e9bb08a51937e399bfb44b7bd84d10cf42b21fb69f8d52329688308ffe6c82e3074f3704ff808eef91d44b2e450

Malware Config

Extracted

Family

agenttesla

Credentials

  • Protocol:
    smtp
  • Host:
    mail.lallyautomobiles.net
  • Port:
    587
  • Username:
    [email protected]
  • Password:
    Welcome@2021

Targets

    • Target

      Payment Advice.pdf,'.exe

    • Size

      918KB

    • MD5

      abc8c6269c64321aa896027be32d45f7

    • SHA1

      13641f490b4e8d63fa987110ef94496f1d6eea5e

    • SHA256

      65ef5d90c345d4e35c915f78eb44b4a199a294ddef89c225079ab2df1051bce6

    • SHA512

      d99abca96eb7200d671c4f03ab2df6c5d54dfaf4261cdf8fa48d0d5a87a8666b7b38a58cda62500f113dde68a3ab5bc0e2fdc24038ff1bf84fc9f60f68468080

    • 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.

    • Adds Run key to start application

    • Suspicious use of SetThreadContext

MITRE ATT&CK Matrix ATT&CK v6

Persistence

Registry Run Keys / Startup Folder

1
T1060

Defense Evasion

Modify Registry

1
T1112

Credential Access

Credentials in Files

3
T1081

Collection

Data from Local System

3
T1005

Tasks