General

  • Target

    f1d4b66a8de9c9869e4014a798d36795cb43bdbcdefd795b87c7d3b066abaee1

  • Size

    830KB

  • Sample

    250126-3vthwazlfy

  • MD5

    ece04954e038da7a62048350a31d9969

  • SHA1

    7910b736eba404d999bda5c1d347ad3b8997beab

  • SHA256

    f1d4b66a8de9c9869e4014a798d36795cb43bdbcdefd795b87c7d3b066abaee1

  • SHA512

    5e8e9695e971027200eeec7911e88fae10dc78cde021f1ca33cd8af5f64db87f968c5480caeec544c268734d7e42b20cb25dd30a5a22bc10220e30d9cbf01835

  • SSDEEP

    12288:oZ0zgO9uNUSYu4O+SH2S8mFGIne21f4dUkBya16LcrXgd/91D5YxNZ+:oM9uNUSYu3rHbBGIX1gJY26ArQ/9nYxu

Malware Config

Extracted

Family

agenttesla

Credentials

  • Protocol:
    ftp
  • Host:
    ftp://s4.serv00.com
  • Port:
    21
  • Username:
    f2241_evica
  • Password:
    Doll440@@

Extracted

Credentials

  • Protocol:
    ftp
  • Host:
    s4.serv00.com
  • Port:
    21
  • Username:
    f2241_evica
  • Password:
    Doll440@@

Targets

    • Target

      Pre-Alert BOTNAY BAY V-1E/Pre-Alert BOTNAY BAY V-1E.exe

    • Size

      1.7MB

    • MD5

      4c80becc727130fae34c312295f56517

    • SHA1

      d5aed4fa3fbf2994680c97b95a68eeb2e992fc65

    • SHA256

      f2448e5b108286c840b6d8a283af1f980818d500dacf0f04a8b424cd70b6d442

    • SHA512

      d0be51acb0e1a88523d2152054990d862972fc755ec647763707275828f97eccbcbd502b8ee43ae53a79d7018876f2f9a39ed3d1e9d5518604e57c4971480c86

    • SSDEEP

      24576:CSexfdrBbi0T+IKztFBGDVXsgpriBWmSOe/E3vq6EsSV:X8fTBKz/0BNiBWmNesfq6Es

    • AgentTesla

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

    • Agenttesla family

    • Executes dropped EXE

    • Loads dropped DLL

    • 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 Enterprise v15

Tasks