Analysis

  • max time kernel
    85s
  • max time network
    139s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220812-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
  • submitted
    07/09/2022, 10:17

General

  • Target
    f47db38eeec2c8dd91be03fadeafee93.exe
  • Size 1.0MB
  • Sample220907-mbc4saghhm
  • SHA256 5ff5f8f5dbba5f2f2c4195f708a33c3dee9d5370cc334f202c6c97eab311d9d2
  • MD5 SHA1 SHA512 SSDEEP

Malware Config

Extracted

Credentials
  • Protocol

    ftp

  • Host

    ftp.valvulasthermovalve.cl

  • Port

    21

  • Password

    LILKOOLL14!!

Extracted

Family
  • agenttesla

Credentials
  • Protocol

    ftp

  • Host

    ftp://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
  • 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\f47db38eeec2c8dd91be03fadeafee93.exe
    "C:\Users\Admin\AppData\Local\Temp\f47db38eeec2c8dd91be03fadeafee93.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:4932
    • C:\Users\Admin\AppData\Local\Temp\f47db38eeec2c8dd91be03fadeafee93.exe
      "C:\Users\Admin\AppData\Local\Temp\f47db38eeec2c8dd91be03fadeafee93.exe"
      2⤵
      • Accesses Microsoft Outlook profiles
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • outlook_office_path
      • outlook_win_path
      PID:5112

Network

        MITRE ATT&CK Enterprise v6

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        f47db38eeec2c8dd91be03fadeafee93.exe.log

        • Path C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\f47db38eeec2c8dd91be03fadeafee93.exe.log
        • Size 1KB
        • SHA256 bd9d5e9f7fe6fcff17d873555d4077d15f7d6cdda1183e7f7d278b735ffe1fd7
        • MD5 SHA1 SHA512

        memory/4932-132-0x0000000000B60000-0x0000000000C6A000-memory.dmp

        memory/4932-133-0x0000000005C70000-0x0000000006214000-memory.dmp

        memory/4932-134-0x00000000056C0000-0x0000000005752000-memory.dmp

        memory/4932-135-0x0000000005600000-0x000000000560A000-memory.dmp

        memory/4932-136-0x00000000092D0000-0x000000000936C000-memory.dmp

        memory/4932-137-0x0000000009370000-0x00000000093D6000-memory.dmp

        memory/5112-139-0x0000000000400000-0x000000000043A000-memory.dmp

        memory/5112-141-0x00000000063D0000-0x0000000006420000-memory.dmp