General

  • Target

    f6e524a0bcc7d66fbb77fac6ec0fd0cd34743c04efdc13f7f39f85b7aab1d48d.exe

  • Size

    2.2MB

  • Sample

    240326-dk7v3sfc3t

  • MD5

    279d6bc5065b1059db35609bfc38e26b

  • SHA1

    f864e61eaece05436681fba8e44aa79ffd014674

  • SHA256

    f6e524a0bcc7d66fbb77fac6ec0fd0cd34743c04efdc13f7f39f85b7aab1d48d

  • SHA512

    b276c2ffec42db753bb39cc79c2d2fc4e7527ed987fc10b38d014ca6bc0533454bc32ff0387dfbe483f2cd9c642bd36370976d4c927694edee1f26b6102527e7

  • SSDEEP

    49152:/p1U9pT7QQiouzxrsWvyW4Z+usj2slxBw3n2Ri+bTfEbsRtfX:/bCgjouNrsW6nZ+lvlHw3/FoD

Malware Config

Extracted

Family

agenttesla

Credentials

Extracted

Credentials

  • Protocol:
    smtp
  • Host:
    mail.apexrnun.com
  • Port:
    587
  • Username:
    [email protected]
  • Password:
    CCu5Z?WuH+bS4hsz

Targets

    • Target

      f6e524a0bcc7d66fbb77fac6ec0fd0cd34743c04efdc13f7f39f85b7aab1d48d.exe

    • Size

      2.2MB

    • MD5

      279d6bc5065b1059db35609bfc38e26b

    • SHA1

      f864e61eaece05436681fba8e44aa79ffd014674

    • SHA256

      f6e524a0bcc7d66fbb77fac6ec0fd0cd34743c04efdc13f7f39f85b7aab1d48d

    • SHA512

      b276c2ffec42db753bb39cc79c2d2fc4e7527ed987fc10b38d014ca6bc0533454bc32ff0387dfbe483f2cd9c642bd36370976d4c927694edee1f26b6102527e7

    • SSDEEP

      49152:/p1U9pT7QQiouzxrsWvyW4Z+usj2slxBw3n2Ri+bTfEbsRtfX:/bCgjouNrsW6nZ+lvlHw3/FoD

    • AgentTesla

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

    • Detect ZGRat V1

    • Suspicious use of NtCreateUserProcessOtherParentProcess

    • ZGRat

      ZGRat is remote access trojan written in C#.

    • Detect packed .NET executables. Mostly AgentTeslaV4.

    • Detects binaries (Windows and macOS) referencing many web browsers. Observed in information stealers.

    • Detects binaries and memory artifacts referencing sandbox DLLs typically observed in sandbox evasion

    • Detects executables referencing Windows vault credential objects. Observed in infostealers

    • Detects executables referencing many confidential data stores found in browsers, mail clients, cryptocurreny wallets, etc. Observed in information stealers

    • Detects executables referencing many email and collaboration clients. Observed in information stealers

    • Detects executables referencing many file transfer clients. Observed in information stealers

    • 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