General

  • Target

    OUU.exe

  • Size

    393KB

  • Sample

    240319-j6aelafd4x

  • MD5

    e1a4c35915d41d959fdf286da81afedb

  • SHA1

    60ef2a2a370ce3855c7b249462dc5584aeba5161

  • SHA256

    b5a3eceab417c5abf76678d3c3bb087c4b923b2c32a3620407ac266e090308bd

  • SHA512

    53324ab49e2787d97127e6b046b3e748563725ae8f7281969a22507fd6a56fda3e091cce23530f22d1b4b5af08fa73dda28a2711315db56b724a33a73113312e

  • SSDEEP

    6144:Y59wN26uzKsZax2DhLFs5XA45DtRk3FresAPGWAq5OIWcUSmR:YNHzxZax2VBsxA4t8csAjA0O/cUV

Malware Config

Extracted

Family

agenttesla

Credentials

Targets

    • Target

      OUU.exe

    • Size

      393KB

    • MD5

      e1a4c35915d41d959fdf286da81afedb

    • SHA1

      60ef2a2a370ce3855c7b249462dc5584aeba5161

    • SHA256

      b5a3eceab417c5abf76678d3c3bb087c4b923b2c32a3620407ac266e090308bd

    • SHA512

      53324ab49e2787d97127e6b046b3e748563725ae8f7281969a22507fd6a56fda3e091cce23530f22d1b4b5af08fa73dda28a2711315db56b724a33a73113312e

    • SSDEEP

      6144:Y59wN26uzKsZax2DhLFs5XA45DtRk3FresAPGWAq5OIWcUSmR:YNHzxZax2VBsxA4t8csAjA0O/cUV

    • 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 Enterprise v15

Tasks