Analysis

  • max time kernel
    143s
  • max time network
    152s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20230703-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20230703-enlocale:en-usos:windows10-2004-x64system
  • submitted
    18/07/2023, 13:26

General

  • Target
    81f3216baebcf184942d243662a0cd25.exe
  • Size 733KB
  • Sample230718-qph4qsaf95
  • SHA256 8fd3fe63894b618245c1f7ae22b1c53e7a7fadfc009bac8de2c33b4a53e75a05
  • MD5 SHA1 SHA512 SSDEEP

Malware Config

Extracted

Family
  • agenttesla

Credentials
  • Protocol

    ftp

  • Host

    ftp://valvulasthermovalve.cl

  • Port

    21

  • Password

    LILKOOLL14!!

Signatures

  • AgentTesla

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

  • 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
  • Looks up external IP address via web service 2 IoCs

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

  • Suspicious use of SetThreadContext 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 8 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\81f3216baebcf184942d243662a0cd25.exe
    "C:\Users\Admin\AppData\Local\Temp\81f3216baebcf184942d243662a0cd25.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:2212
    • C:\Users\Admin\AppData\Local\Temp\81f3216baebcf184942d243662a0cd25.exe
      "C:\Users\Admin\AppData\Local\Temp\81f3216baebcf184942d243662a0cd25.exe"
      2⤵
      • Accesses Microsoft Outlook profiles
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • outlook_office_path
      • outlook_win_path
      PID:4712

Network

        MITRE ATT&CK Enterprise v6

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        81f3216baebcf184942d243662a0cd25.exe.log

        • Path C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\81f3216baebcf184942d243662a0cd25.exe.log
        • Size 1KB
        • SHA256 7667e538030e3f8ce2886e47a01af24cb0ea70528b1e821c5d8832c5076cb982
        • MD5 SHA1 SHA512

        memory/2212-141-0x0000000009160000-0x00000000091FC000-memory.dmp

        memory/2212-133-0x0000000000840000-0x00000000008FE000-memory.dmp

        memory/2212-136-0x0000000005320000-0x00000000053B2000-memory.dmp

        memory/2212-137-0x0000000005530000-0x0000000005540000-memory.dmp

        memory/2212-138-0x0000000005300000-0x000000000530A000-memory.dmp

        memory/2212-139-0x0000000074730000-0x0000000074EE0000-memory.dmp

        memory/2212-140-0x0000000005530000-0x0000000005540000-memory.dmp

        memory/2212-134-0x0000000074730000-0x0000000074EE0000-memory.dmp

        memory/2212-135-0x00000000058D0000-0x0000000005E74000-memory.dmp

        memory/2212-146-0x0000000074730000-0x0000000074EE0000-memory.dmp

        memory/4712-145-0x0000000074730000-0x0000000074EE0000-memory.dmp

        memory/4712-142-0x0000000000400000-0x0000000000430000-memory.dmp

        memory/4712-147-0x0000000004F90000-0x0000000004FA0000-memory.dmp

        memory/4712-148-0x0000000004DF0000-0x0000000004E56000-memory.dmp

        memory/4712-149-0x00000000065A0000-0x00000000065F0000-memory.dmp

        memory/4712-150-0x00000000067C0000-0x0000000006982000-memory.dmp

        memory/4712-151-0x0000000074730000-0x0000000074EE0000-memory.dmp

        memory/4712-152-0x0000000004F90000-0x0000000004FA0000-memory.dmp