General

  • Target

    SecuriteInfo.com.Win32.PWSX-gen.21299.5155

  • Size

    747KB

  • Sample

    240327-kc1v5agc94

  • MD5

    7e50b0328014e0c2f3ec7bc7ecec7d27

  • SHA1

    ed2f7dca7d90b68b992f78ecb33ce80554610027

  • SHA256

    c2a6bcd8a0594ef65687fad97e30f52c0a6995efd5739c1a431376de5ad2857a

  • SHA512

    b00d7d38f0b80506a701859caea9c767fb1efe1ab595c85817019900389a5d36f225c82cf240fe5a1ba788b0a43cd4b5ee91882e6c60bc2c4d1a8f9d17ec49cd

  • SSDEEP

    12288:ok6ayww07LVL0JCXCNsol0jRhH7MfaQx64kuaizm/AlH3kjY+n1cE3:sajTpICCFslijFS/kUjVx

Malware Config

Extracted

Credentials

  • Protocol:
    smtp
  • Host:
    mail.wecaresvc.com
  • Port:
    587
  • Username:
    [email protected]
  • Password:
    s2a8l4e9skao

Extracted

Family

agenttesla

Credentials

Targets

    • Target

      SecuriteInfo.com.Win32.PWSX-gen.21299.5155

    • Size

      747KB

    • MD5

      7e50b0328014e0c2f3ec7bc7ecec7d27

    • SHA1

      ed2f7dca7d90b68b992f78ecb33ce80554610027

    • SHA256

      c2a6bcd8a0594ef65687fad97e30f52c0a6995efd5739c1a431376de5ad2857a

    • SHA512

      b00d7d38f0b80506a701859caea9c767fb1efe1ab595c85817019900389a5d36f225c82cf240fe5a1ba788b0a43cd4b5ee91882e6c60bc2c4d1a8f9d17ec49cd

    • SSDEEP

      12288:ok6ayww07LVL0JCXCNsol0jRhH7MfaQx64kuaizm/AlH3kjY+n1cE3:sajTpICCFslijFS/kUjVx

    • AgentTesla

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

    • Checks computer location settings

      Looks up country code configured in the registry, likely geofence.

    • 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.

    • 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

Execution

Scheduled Task/Job

1
T1053

Persistence

Scheduled Task/Job

1
T1053

Privilege Escalation

Scheduled Task/Job

1
T1053

Credential Access

Unsecured Credentials

4
T1552

Credentials In Files

3
T1552.001

Credentials in Registry

1
T1552.002

Discovery

Query Registry

1
T1012

System Information Discovery

2
T1082

Collection

Data from Local System

4
T1005

Tasks