General

  • Target

    58800a690eb8217cf31f262261c856ceb8b73a580b1daab25f1cdac61394f918

  • Size

    719KB

  • Sample

    250115-bqh3sswkfz

  • MD5

    c8c2b93f8b79377e5d346edfbf9504b3

  • SHA1

    0e38e95f3cdba184363c9b2930a5f4d7d84895c2

  • SHA256

    58800a690eb8217cf31f262261c856ceb8b73a580b1daab25f1cdac61394f918

  • SHA512

    1d1dc875502359ee460fe6ad3437cfe3c511b9a18916a95f21ce3d5eae389b32029dc5f943d64f115cafaeb58d140b965a51bb5f6b837aadf0f1243c7d7fc571

  • SSDEEP

    12288:ufZYRxA4Y5lyA/BxSPCn2m9ugFv4ji7X6RejFjb4+Z8ZLe9MQcIneW1caCoLXz4E:DRa2mAqUijSej9b4K+LccOeN4Xz4H1

Malware Config

Extracted

Family

agenttesla

Credentials

Extracted

Credentials

  • Protocol:
    smtp
  • Host:
    mail.stilbo.eu
  • Port:
    587
  • Username:
    [email protected]
  • Password:
    StilBO_#1

Targets

    • Target

      58800a690eb8217cf31f262261c856ceb8b73a580b1daab25f1cdac61394f918

    • Size

      719KB

    • MD5

      c8c2b93f8b79377e5d346edfbf9504b3

    • SHA1

      0e38e95f3cdba184363c9b2930a5f4d7d84895c2

    • SHA256

      58800a690eb8217cf31f262261c856ceb8b73a580b1daab25f1cdac61394f918

    • SHA512

      1d1dc875502359ee460fe6ad3437cfe3c511b9a18916a95f21ce3d5eae389b32029dc5f943d64f115cafaeb58d140b965a51bb5f6b837aadf0f1243c7d7fc571

    • SSDEEP

      12288:ufZYRxA4Y5lyA/BxSPCn2m9ugFv4ji7X6RejFjb4+Z8ZLe9MQcIneW1caCoLXz4E:DRa2mAqUijSej9b4K+LccOeN4Xz4H1

    • AgentTesla

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

    • Agenttesla family

    • Command and Scripting Interpreter: PowerShell

      Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.

    • 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 Enterprise v15

Tasks