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Analysis

  • max time kernel
    86s
  • max time network
    75s
  • platform
    windows7_x64
  • resource
    win7
  • submitted
    07/07/2020, 09:07

General

  • Target

    invois 002012001864 bertarikh 07072020.exe

  • Size

    579KB

  • MD5

    d662aab0cfa82462427ecf5131a40d87

  • SHA1

    a03cc1baca5712b05999f83264106f4bcfee4395

  • SHA256

    cfe3e39344160f0c067bbcb411a123e112df412019426aa3fc665ceb7c173f0e

  • SHA512

    2772d9492e1c40ce2eb3cfbc6c330118b02f331b7ce5193f18c318b1eeb7c01df7c5e8df41ea1a554169972a00b139e2bcccc3c0da92a1a8438d1e22da1b2807

Malware Config

Extracted

Family

agenttesla

Credentials

  • Protocol:
    smtp
  • Host:
    mail.protege.com.mx
  • Port:
    587
  • Username:
    [email protected]
  • Password:
    se*-V

Signatures

  • AgentTesla

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

  • AgentTesla Payload 4 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.

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

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

  • Creates scheduled task(s) 1 TTPs 1 IoCs

    Schtasks is often used by malware for persistence or to perform post-infection execution.

  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 17 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\invois 002012001864 bertarikh 07072020.exe
    "C:\Users\Admin\AppData\Local\Temp\invois 002012001864 bertarikh 07072020.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:616
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\YwwiOqPRAg" /XML "C:\Users\Admin\AppData\Local\Temp\tmp8313.tmp"
      2⤵
      • Creates scheduled task(s)
      PID:864
    • C:\Users\Admin\AppData\Local\Temp\invois 002012001864 bertarikh 07072020.exe
      "{path}"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:748
      • C:\Windows\SysWOW64\netsh.exe
        "netsh" wlan show profile
        3⤵
          PID:1896

    Network

    MITRE ATT&CK Enterprise v6

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • memory/748-4-0x0000000000400000-0x0000000000452000-memory.dmp

      Filesize

      328KB

    • memory/748-6-0x0000000000400000-0x0000000000452000-memory.dmp

      Filesize

      328KB

    • memory/748-7-0x0000000000400000-0x0000000000452000-memory.dmp

      Filesize

      328KB