General

  • Target

    fb4e83e86a7922340756971d6c2de46ecb73aa0e55e62047702149267927dc3d

  • Size

    234KB

  • Sample

    240427-b1xzpshc4s

  • MD5

    685545b03d8a83f08505c1236125eedf

  • SHA1

    3f1659d4c2947ee4e34a5ad228aca205f0dc0630

  • SHA256

    fb4e83e86a7922340756971d6c2de46ecb73aa0e55e62047702149267927dc3d

  • SHA512

    99474261ec360d9727e1103c2f190d2a934c718c36cf59e905af0a27aba033a16ff8ff2b651e3a78af4f3bca82bc771f74c6be01508398ffd06f92ca97c034ad

  • SSDEEP

    3072:8AcUyHjvD3D7QnzlSfEq+7DJyD5G10L8f:8ZUyHjvD3D7Qh+w7Fye0w

Malware Config

Extracted

Family

agenttesla

Credentials

  • Protocol:
    ftp
  • Host:
    ftp://ftp.amtechprinting.com
  • Port:
    21
  • Username:
    [email protected]
  • Password:
    B=OgTAJmiPuN

Targets

    • Target

      fb4e83e86a7922340756971d6c2de46ecb73aa0e55e62047702149267927dc3d

    • Size

      234KB

    • MD5

      685545b03d8a83f08505c1236125eedf

    • SHA1

      3f1659d4c2947ee4e34a5ad228aca205f0dc0630

    • SHA256

      fb4e83e86a7922340756971d6c2de46ecb73aa0e55e62047702149267927dc3d

    • SHA512

      99474261ec360d9727e1103c2f190d2a934c718c36cf59e905af0a27aba033a16ff8ff2b651e3a78af4f3bca82bc771f74c6be01508398ffd06f92ca97c034ad

    • SSDEEP

      3072:8AcUyHjvD3D7QnzlSfEq+7DJyD5G10L8f:8ZUyHjvD3D7Qh+w7Fye0w

    • AgentTesla

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

    • Reads WinSCP keys stored on the system

      Tries to access WinSCP stored sessions.

    • 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

    • Looks up external IP address via web service

      Uses a legitimate IP lookup service to find the infected system's external IP.

MITRE ATT&CK Matrix ATT&CK v13

Persistence

Boot or Logon Autostart Execution

1
T1547

Registry Run Keys / Startup Folder

1
T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

1
T1547

Registry Run Keys / Startup Folder

1
T1547.001

Defense Evasion

Modify Registry

1
T1112

Credential Access

Unsecured Credentials

4
T1552

Credentials In Files

3
T1552.001

Credentials in Registry

1
T1552.002

Collection

Data from Local System

4
T1005

Tasks