General

  • Target

    Invoice,.exe

  • Size

    983KB

  • Sample

    210420-qxg1egw8dx

  • MD5

    e6fccd33c9b592039b1b9e68c75c40ed

  • SHA1

    dfa11bca779649b45aade346a9115dbae8205274

  • SHA256

    16371a4c00dcbafa63e93f577306b41caa10d8a567678a7bb3ed54ae1b4cd993

  • SHA512

    281d5a763fa808ae1a14d8017190a6b734fc825df92d0d23b2c200e833e59bde48f685da1c4c27d7224ac334e836d1746f3c7c3b9166de5d1bc3e3ddd483271d

Malware Config

Extracted

Family

agenttesla

Credentials

  • Protocol:
    smtp
  • Host:
    mail.lallyautomobiles.net
  • Port:
    587
  • Username:
    servicekrl@lallyautomobiles.net
  • Password:
    Welcome@2021

Targets

    • Target

      Invoice,.exe

    • Size

      983KB

    • MD5

      e6fccd33c9b592039b1b9e68c75c40ed

    • SHA1

      dfa11bca779649b45aade346a9115dbae8205274

    • SHA256

      16371a4c00dcbafa63e93f577306b41caa10d8a567678a7bb3ed54ae1b4cd993

    • SHA512

      281d5a763fa808ae1a14d8017190a6b734fc825df92d0d23b2c200e833e59bde48f685da1c4c27d7224ac334e836d1746f3c7c3b9166de5d1bc3e3ddd483271d

    • 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