General

  • Target

    a551b310da4d06f01f8ea3b0ed90d148e4fb468e2fec58760d8d66ef16d727cd

  • Size

    3.5MB

  • Sample

    240929-btpdzsvblj

  • MD5

    4ce625b7b44bf706a16f0e49ac6b10f7

  • SHA1

    ca6d78b06ab1550ea435f7bfe18e2fc34045acbe

  • SHA256

    a551b310da4d06f01f8ea3b0ed90d148e4fb468e2fec58760d8d66ef16d727cd

  • SHA512

    a43d05de0409ed95e02ac8bf1440f3393b76c0a8c72d33ab36611b0ca85b9d5726939601d7ce24f74466f4355f53271e1ea4f12c5515646ee12ffdb1f8d9e4af

  • SSDEEP

    98304:7trbTA15UWfEi5UKtbd9XDyxtO79xBCcwO:hc15zEcUKtRZyxtCwct

Malware Config

Extracted

Family

agenttesla

Credentials

Extracted

Family

redline

Botnet

FOZ

C2

212.162.149.53:2049

Targets

    • Target

      a551b310da4d06f01f8ea3b0ed90d148e4fb468e2fec58760d8d66ef16d727cd

    • Size

      3.5MB

    • MD5

      4ce625b7b44bf706a16f0e49ac6b10f7

    • SHA1

      ca6d78b06ab1550ea435f7bfe18e2fc34045acbe

    • SHA256

      a551b310da4d06f01f8ea3b0ed90d148e4fb468e2fec58760d8d66ef16d727cd

    • SHA512

      a43d05de0409ed95e02ac8bf1440f3393b76c0a8c72d33ab36611b0ca85b9d5726939601d7ce24f74466f4355f53271e1ea4f12c5515646ee12ffdb1f8d9e4af

    • SSDEEP

      98304:7trbTA15UWfEi5UKtbd9XDyxtO79xBCcwO:hc15zEcUKtRZyxtCwct

    • AgentTesla

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

    • RedLine

      RedLine Stealer is a malware family written in C#, first appearing in early 2020.

    • RedLine payload

    • Command and Scripting Interpreter: PowerShell

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

    • Drops startup file

    • Executes dropped EXE

    • Loads dropped DLL

    • 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.

    • Accesses cryptocurrency files/wallets, possible credential harvesting

    • Checks installed software on the system

      Looks up Uninstall key entries in the registry to enumerate software on the system.

    • Looks up external IP address via web service

      Uses a legitimate IP lookup service to find the infected system's external IP.

    • Drops file in System32 directory

    • Suspicious use of SetThreadContext

MITRE ATT&CK Enterprise v15

Tasks