General

  • Target

    b58ca2a14836ed283ed5b5d653f20c2a42077d4d7b6b4cbe2ad6bc2ab532db07.exe

  • Size

    2.7MB

  • Sample

    240604-b781jshh47

  • MD5

    7e2124dbe1043d3041d86b37a446c7ae

  • SHA1

    26dc699a146f17b14f4bae8511a744648a326ccb

  • SHA256

    b58ca2a14836ed283ed5b5d653f20c2a42077d4d7b6b4cbe2ad6bc2ab532db07

  • SHA512

    9f5825d580e218b643fd763d81b9b647226537efeb17904a9149db07a817a69b653a2908a8064bc183e9f8cc5f656be451c4087bde0765a69049c62879883d9d

  • SSDEEP

    49152:dNdXqGKKmWxaK0/Le+CaRAI1vTmZGjCqrXR904sBcguzU3/FWvR+H8hH4Y3hZXky:xZKDbYeJpsPDBGxU30ZOYYY3hZXkn

Malware Config

Extracted

Family

agenttesla

Credentials

Extracted

Credentials

  • Protocol:
    smtp
  • Host:
    mail.gencoldfire.com
  • Port:
    587
  • Username:
    [email protected]
  • Password:
    U+&%W@y1mSEUOinP

Targets

    • Target

      b58ca2a14836ed283ed5b5d653f20c2a42077d4d7b6b4cbe2ad6bc2ab532db07.exe

    • Size

      2.7MB

    • MD5

      7e2124dbe1043d3041d86b37a446c7ae

    • SHA1

      26dc699a146f17b14f4bae8511a744648a326ccb

    • SHA256

      b58ca2a14836ed283ed5b5d653f20c2a42077d4d7b6b4cbe2ad6bc2ab532db07

    • SHA512

      9f5825d580e218b643fd763d81b9b647226537efeb17904a9149db07a817a69b653a2908a8064bc183e9f8cc5f656be451c4087bde0765a69049c62879883d9d

    • SSDEEP

      49152:dNdXqGKKmWxaK0/Le+CaRAI1vTmZGjCqrXR904sBcguzU3/FWvR+H8hH4Y3hZXky:xZKDbYeJpsPDBGxU30ZOYYY3hZXkn

    • AgentTesla

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

    • 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 packed with SmartAssembly

    • 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