Analysis

  • max time kernel
    149s
  • max time network
    128s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240426-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240426-enlocale:en-usos:windows10-2004-x64system
  • submitted
    29/05/2024, 11:19

General

  • Target
    pagamento240529.bat.exe
  • Size 491KB
  • Sample240529-netrdacg2v
  • SHA256 6762d4556e49a9fe0272ca23cb07595e6e7ca6b78d74cd6a8076678031f530f2
  • MD5 SHA1 SHA512 SSDEEP

Malware Config

Extracted

Family
  • agenttesla

Credentials
  • Protocol

    ftp

  • Host

    ftp://mail.hearing-vision.com

  • Port

    21

  • Password

    LILKOOLL14!

Signatures

  • AgentTesla

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

  • Guloader,Cloudeye

    A shellcode based downloader first seen in 2020.

  • Loads dropped DLL 1 IoCs
  • Reads WinSCP keys stored on the system 2 TTPs

    Tries to access WinSCP stored sessions.

  • 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.

  • Looks up external IP address via web service 1 IoCs

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

  • Suspicious use of NtCreateThreadExHideFromDebugger 1 IoCs
  • Suspicious use of NtSetInformationThreadHideFromDebugger 2 IoCs
  • Suspicious use of SetThreadContext 1 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious behavior: MapViewOfSection 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 5 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\pagamento240529.bat.exe
    "C:\Users\Admin\AppData\Local\Temp\pagamento240529.bat.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of NtSetInformationThreadHideFromDebugger
    • Suspicious use of SetThreadContext
    • Suspicious behavior: MapViewOfSection
    • Suspicious use of WriteProcessMemory
    PID:628
    • C:\Users\Admin\AppData\Local\Temp\pagamento240529.bat.exe
      "C:\Users\Admin\AppData\Local\Temp\pagamento240529.bat.exe"
      2⤵
      • Suspicious use of NtCreateThreadExHideFromDebugger
      • Suspicious use of NtSetInformationThreadHideFromDebugger
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:4860

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        System.dll

        • Path C:\Users\Admin\AppData\Local\Temp\nsw3087.tmp\System.dll
        • Size 11KB
        • SHA256 e94a1f7bcd7e0d532b660d0af468eb3321536c3efdca265e61f9ec174b1aef27
        • MD5 SHA1 SHA512 SSDEEP

        memory/628-34-0x0000000004570000-0x000000000587D000-memory.dmp

        memory/628-35-0x00000000774D1000-0x00000000775F1000-memory.dmp

        memory/628-36-0x0000000010004000-0x0000000010005000-memory.dmp

        memory/628-42-0x0000000004570000-0x000000000587D000-memory.dmp

        memory/628-38-0x0000000004570000-0x000000000587D000-memory.dmp

        memory/4860-41-0x00000000007F0000-0x0000000001A44000-memory.dmp

        memory/4860-40-0x0000000077575000-0x0000000077576000-memory.dmp

        memory/4860-39-0x0000000077558000-0x0000000077559000-memory.dmp

        memory/4860-37-0x0000000001A50000-0x0000000002D5D000-memory.dmp

        memory/4860-43-0x00000000007F0000-0x0000000000832000-memory.dmp

        memory/4860-44-0x0000000035640000-0x0000000035BE4000-memory.dmp

        memory/4860-45-0x0000000035520000-0x0000000035586000-memory.dmp

        memory/4860-46-0x0000000036400000-0x0000000036450000-memory.dmp

        memory/4860-47-0x0000000036450000-0x00000000364E2000-memory.dmp

        memory/4860-48-0x0000000036520000-0x000000003652A000-memory.dmp

        memory/4860-50-0x0000000001A50000-0x0000000002D5D000-memory.dmp

        memory/4860-52-0x00000000774D1000-0x00000000775F1000-memory.dmp