Analysis

  • max time kernel
    145s
  • max time network
    151s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20230703-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20230703-enlocale:en-usos:windows10-2004-x64system
  • submitted
    10/08/2023, 16:52

General

  • Target
    c232cfbe659bf2926f6c1c446a5033b3.exe
  • Size 590KB
  • Sample230810-vdedmaha6y
  • SHA256 adfa401cdfaac06df0e529bc9d54b74cea9a28d4266a49edafa5b8e04e3b3594
  • 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.

  • 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

Processes

  • C:\Users\Admin\AppData\Local\Temp\c232cfbe659bf2926f6c1c446a5033b3.exe
    "C:\Users\Admin\AppData\Local\Temp\c232cfbe659bf2926f6c1c446a5033b3.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:3728
    • C:\Users\Admin\AppData\Local\Temp\c232cfbe659bf2926f6c1c446a5033b3.exe
      "C:\Users\Admin\AppData\Local\Temp\c232cfbe659bf2926f6c1c446a5033b3.exe"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:3176

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        c232cfbe659bf2926f6c1c446a5033b3.exe.log

        • Path C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\c232cfbe659bf2926f6c1c446a5033b3.exe.log
        • Size 1KB
        • SHA256 7667e538030e3f8ce2886e47a01af24cb0ea70528b1e821c5d8832c5076cb982
        • MD5 SHA1 SHA512

        memory/3176-142-0x0000000000400000-0x0000000000430000-memory.dmp

        memory/3176-152-0x0000000005330000-0x0000000005340000-memory.dmp

        memory/3176-151-0x0000000074BE0000-0x0000000075390000-memory.dmp

        memory/3176-150-0x0000000006C20000-0x0000000006DE2000-memory.dmp

        memory/3176-149-0x0000000006A00000-0x0000000006A50000-memory.dmp

        memory/3176-148-0x0000000005270000-0x00000000052D6000-memory.dmp

        memory/3176-147-0x0000000005330000-0x0000000005340000-memory.dmp

        memory/3176-146-0x0000000074BE0000-0x0000000075390000-memory.dmp

        memory/3728-141-0x0000000008C40000-0x0000000008CDC000-memory.dmp

        memory/3728-133-0x0000000074BE0000-0x0000000075390000-memory.dmp

        memory/3728-140-0x0000000005630000-0x0000000005640000-memory.dmp

        memory/3728-145-0x0000000074BE0000-0x0000000075390000-memory.dmp

        memory/3728-139-0x0000000074BE0000-0x0000000075390000-memory.dmp

        memory/3728-138-0x00000000056C0000-0x00000000056CA000-memory.dmp

        memory/3728-137-0x0000000005630000-0x0000000005640000-memory.dmp

        memory/3728-136-0x0000000005740000-0x00000000057D2000-memory.dmp

        memory/3728-135-0x0000000005CF0000-0x0000000006294000-memory.dmp

        memory/3728-134-0x0000000000C20000-0x0000000000CBA000-memory.dmp