General

  • Target

    4c145622d488c731979d42c7f79c472a5cd1f68e8c64a397e4a866d284d23923

  • Size

    656KB

  • Sample

    240523-c1apvaaf61

  • MD5

    1534d66b1d5d06bf3ce463fe4de16113

  • SHA1

    8bab8bba168c3af944cea61d0c850ee0af12f49e

  • SHA256

    4c145622d488c731979d42c7f79c472a5cd1f68e8c64a397e4a866d284d23923

  • SHA512

    2338dd07308e4231556bc7b091ea7f6642a0f50c93c19dd9821e97dbb82282dbbe3173dcb6494de8a83ff5211d54bfb5de0d58e60a5d7216f8c8eaa700a03e3a

  • SSDEEP

    12288:vJzi8LkpEaboi4dUdW24hWYtooHMb0uUM2xnUHPkC+u7FOJmb7QMHE8hSe:vJ2jEw4ceWvoHQh2xnUHPkCAJmbE

Malware Config

Extracted

Family

agenttesla

Credentials

Extracted

Credentials

  • Protocol:
    smtp
  • Host:
    mail.ipr-co.org
  • Port:
    587
  • Username:
    [email protected]
  • Password:
    IPRco@100102@

Targets

    • Target

      4c145622d488c731979d42c7f79c472a5cd1f68e8c64a397e4a866d284d23923

    • Size

      656KB

    • MD5

      1534d66b1d5d06bf3ce463fe4de16113

    • SHA1

      8bab8bba168c3af944cea61d0c850ee0af12f49e

    • SHA256

      4c145622d488c731979d42c7f79c472a5cd1f68e8c64a397e4a866d284d23923

    • SHA512

      2338dd07308e4231556bc7b091ea7f6642a0f50c93c19dd9821e97dbb82282dbbe3173dcb6494de8a83ff5211d54bfb5de0d58e60a5d7216f8c8eaa700a03e3a

    • SSDEEP

      12288:vJzi8LkpEaboi4dUdW24hWYtooHMb0uUM2xnUHPkC+u7FOJmb7QMHE8hSe:vJ2jEw4ceWvoHQh2xnUHPkCAJmbE

    • 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.

    • Suspicious use of SetThreadContext

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