General

  • Target

    ba0f71fb8d0bc64a55644f7086fe2e03d78dab544f9998658eca5ebd2c48be76

  • Size

    1.1MB

  • Sample

    210122-l8sf93xl12

  • MD5

    92edc65726762623172b37e177bd09de

  • SHA1

    8a75db87fb9a1cfc0c8dc24d42dcba490919c954

  • SHA256

    ba0f71fb8d0bc64a55644f7086fe2e03d78dab544f9998658eca5ebd2c48be76

  • SHA512

    2aa1496d3e192d14efece08c9477f3dd4e69a70af84ac9744cbd9559a57f1dbdb6e67c9ad32fb35e3d147833a5eaee0fb84e3368bd50715b4f67e8aeffa63b63

Malware Config

Extracted

Family

agenttesla

Credentials

  • Protocol:
    smtp
  • Host:
    smtp.yandex.com
  • Port:
    587
  • Username:
    vbjmys@yandex.com
  • Password:
    officepost8

Targets

    • Target

      ba0f71fb8d0bc64a55644f7086fe2e03d78dab544f9998658eca5ebd2c48be76

    • Size

      1.1MB

    • MD5

      92edc65726762623172b37e177bd09de

    • SHA1

      8a75db87fb9a1cfc0c8dc24d42dcba490919c954

    • SHA256

      ba0f71fb8d0bc64a55644f7086fe2e03d78dab544f9998658eca5ebd2c48be76

    • SHA512

      2aa1496d3e192d14efece08c9477f3dd4e69a70af84ac9744cbd9559a57f1dbdb6e67c9ad32fb35e3d147833a5eaee0fb84e3368bd50715b4f67e8aeffa63b63

    • AgentTesla

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

    • AgentTesla Payload

    • 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.

    • 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

Discovery

System Information Discovery

1
T1082

Collection

Data from Local System

3
T1005

Tasks