Analysis

  • max time kernel
    137s
  • max time network
    121s
  • platform
    windows7_x64
  • resource
    win7-en-20211104
  • submitted
    17/11/2021, 07:42

General

  • Target
    BOQ 11745692.exe
  • Size 858KB
  • Sample211117-jjpk1aefcm
  • SHA256 5abf356c34fac462b7977aa7ee02ea4e072764d6acb7803fd9591af68e6a2429
  • MD5 SHA1 SHA512

Malware Config

Extracted

Family
  • agenttesla

Credentials
  • Protocol

    smtp

  • Host

    smtp.logos-cy.com

  • Port

    587

  • Password

    (l#YT%^6

Signatures

  • AgentTesla

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

  • AgentTesla Payload 1 IoCs
  • Reads data files stored by FTP clients 2 TTPs

    Tries to access configuration files associated with programs like FileZilla.

  • Reads user/profile data of local email clients 2 TTPs

    Email clients store some user data on disk where infostealers will often target it.

  • Reads user/profile data of web browsers 2 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

  • Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

  • Suspicious behavior: EnumeratesProcesses 3 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 4 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\BOQ 11745692.exe
    "C:\Users\Admin\AppData\Local\Temp\BOQ 11745692.exe"
    1⤵
    • Accesses Microsoft Outlook profiles
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    • outlook_office_path
    • outlook_win_path
    PID:1052
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Local\Temp\BOQ 11745692.exe"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:1552

Network

        MITRE ATT&CK Enterprise v6

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        memory/1052-55-0x0000000000930000-0x0000000000931000-memory.dmp

        memory/1052-57-0x0000000002050000-0x0000000002051000-memory.dmp

        memory/1052-58-0x00000000004C0000-0x00000000004C7000-memory.dmp

        memory/1052-59-0x0000000004CF0000-0x0000000004D48000-memory.dmp

        memory/1052-60-0x0000000004E60000-0x0000000004E99000-memory.dmp

        memory/1052-62-0x0000000005110000-0x0000000005146000-memory.dmp

        memory/1552-63-0x0000000074E51000-0x0000000074E53000-memory.dmp

        memory/1552-64-0x00000000025B0000-0x00000000031FA000-memory.dmp

        memory/1552-65-0x00000000025B0000-0x00000000031FA000-memory.dmp

        memory/1552-66-0x00000000025B0000-0x00000000031FA000-memory.dmp