Analysis

  • max time kernel
    108s
  • max time network
    48s
  • platform
    windows7_x64
  • resource
    win7v200430
  • submitted
    07-07-2020 08:36

General

  • Target

    Advance payment note.exe

  • Size

    563KB

  • MD5

    e713b0186734c17151daceb17d315ba0

  • SHA1

    d31dea95ba177db8bc18ada3625a5604dc948359

  • SHA256

    0af307702055e443dd8ceba3a2b2022609442fd7f6c5358180ec8c6b581d21e5

  • SHA512

    0a5cfd4de6a5d6c8c3cbe66e88a7a96ba4169383a7f6a59f9777034ab26a548a02db49a6f5f9d8620f42943b3e6052eec47a59b7a154381e0707332e21fd49dd

Malware Config

Extracted

Family

agenttesla

Credentials

  • Protocol:
    smtp
  • Host:
    us2.smtp.mailhostbox.com
  • Port:
    587
  • Username:
    [email protected]
  • Password:
    mpjw2013

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 SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 17 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\Advance payment note.exe
    "C:\Users\Admin\AppData\Local\Temp\Advance payment note.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:1500
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\VEvBEodQIxynit" /XML "C:\Users\Admin\AppData\Local\Temp\tmp77ED.tmp"
      2⤵
      • Creates scheduled task(s)
      PID:1872
    • C:\Users\Admin\AppData\Local\Temp\Advance payment note.exe
      "{path}"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:1756
      • C:\Windows\SysWOW64\netsh.exe
        "netsh" wlan show profile
        3⤵
          PID:1956

    Network

    MITRE ATT&CK Enterprise v6

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • memory/1756-4-0x0000000000400000-0x0000000000450000-memory.dmp

      Filesize

      320KB

    • memory/1756-6-0x0000000000400000-0x0000000000450000-memory.dmp

      Filesize

      320KB

    • memory/1756-7-0x0000000000400000-0x0000000000450000-memory.dmp

      Filesize

      320KB