General

  • Target

    c4caf87daba54f6d5e35ebd680122efadc83c8f7a0eb7614d390206612e09f53.exe

  • Size

    668KB

  • Sample

    240330-crl2hsfg35

  • MD5

    7924e1ceb04728aa9bf70bb910859265

  • SHA1

    6581d3f20021fcb58ecfd55097cb4219346e271e

  • SHA256

    c4caf87daba54f6d5e35ebd680122efadc83c8f7a0eb7614d390206612e09f53

  • SHA512

    fc6488e87520d430dc4d459aee42e82a3a79d2f6eb27d0ca85ca6a29ecb46631d156e8fc102ba60dc94984c8431c363a555b1b582efaad43da5d0cfcde93b81e

  • SSDEEP

    12288:ZflLK14IEuERRHjVZRlawfZC/lVL/ZqdJ2Q0TzjLhs5HAe:Z9i4IEn9VZRTfa1qrTyS5Hn

Malware Config

Extracted

Credentials

  • Protocol:
    smtp
  • Host:
    mail.hamouneco.com
  • Port:
    587
  • Username:
    [email protected]
  • Password:
    HamounEco@9466

Targets

    • Target

      c4caf87daba54f6d5e35ebd680122efadc83c8f7a0eb7614d390206612e09f53.exe

    • Size

      668KB

    • MD5

      7924e1ceb04728aa9bf70bb910859265

    • SHA1

      6581d3f20021fcb58ecfd55097cb4219346e271e

    • SHA256

      c4caf87daba54f6d5e35ebd680122efadc83c8f7a0eb7614d390206612e09f53

    • SHA512

      fc6488e87520d430dc4d459aee42e82a3a79d2f6eb27d0ca85ca6a29ecb46631d156e8fc102ba60dc94984c8431c363a555b1b582efaad43da5d0cfcde93b81e

    • SSDEEP

      12288:ZflLK14IEuERRHjVZRlawfZC/lVL/ZqdJ2Q0TzjLhs5HAe:Z9i4IEn9VZRTfa1qrTyS5Hn

    • 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 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

    • 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.

    • Suspicious use of SetThreadContext

MITRE ATT&CK Enterprise v15

Tasks