General

  • Target

    63b303a4e01924ae9ca9fcfc7f75cf87144598342415df3cdd802440d770add1.exe

  • Size

    844KB

  • Sample

    240523-bzt7esha72

  • MD5

    d56e4cf40342c261abc7f621c30908d3

  • SHA1

    09f99d47b38931ad4f964e98ef106c218e07ca12

  • SHA256

    63b303a4e01924ae9ca9fcfc7f75cf87144598342415df3cdd802440d770add1

  • SHA512

    201b0eb2546e0a3e7bb9f503c85c9ba1c24fcfd9de2a62972d3b9f45ee59c5f4d45585e319efe6baa54d664d39ddbf9d4fd51de0d6c2131d3f5b7847f48c34f2

  • SSDEEP

    24576:vw4bjw4bolDAFv956pfL3U603tg+MyKOPNs8UYJzDSBNFxa7:vw4bjw4bgAFv956L3IdRG8UYJzDS0

Malware Config

Extracted

Family

agenttesla

Credentials

  • Protocol:
    ftp
  • Host:
    ftp://ftp.jeepcommerce.rs
  • Port:
    21
  • Username:
    [email protected]
  • Password:
    Q6]7rLSD*gU2

Extracted

Credentials

  • Protocol:
    ftp
  • Host:
    ftp.jeepcommerce.rs
  • Port:
    21
  • Username:
    [email protected]
  • Password:
    Q6]7rLSD*gU2

Targets

    • Target

      63b303a4e01924ae9ca9fcfc7f75cf87144598342415df3cdd802440d770add1.exe

    • Size

      844KB

    • MD5

      d56e4cf40342c261abc7f621c30908d3

    • SHA1

      09f99d47b38931ad4f964e98ef106c218e07ca12

    • SHA256

      63b303a4e01924ae9ca9fcfc7f75cf87144598342415df3cdd802440d770add1

    • SHA512

      201b0eb2546e0a3e7bb9f503c85c9ba1c24fcfd9de2a62972d3b9f45ee59c5f4d45585e319efe6baa54d664d39ddbf9d4fd51de0d6c2131d3f5b7847f48c34f2

    • SSDEEP

      24576:vw4bjw4bolDAFv956pfL3U603tg+MyKOPNs8UYJzDSBNFxa7:vw4bjw4bgAFv956L3IdRG8UYJzDS0

    • 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 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

    • Command and Scripting Interpreter: PowerShell

      Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.

    • 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.

    • 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