Analysis

  • max time kernel
    143s
  • max time network
    46s
  • platform
    windows7_x64
  • resource
    win7-20220414-en
  • submitted
    20-05-2022 22:45

General

  • Target

    Documentos de envío originales.exe

  • Size

    444KB

  • MD5

    1d9114f765f11b4c354cefe6c2986693

  • SHA1

    b9e6ada77040913608f93e68486e5372879b504c

  • SHA256

    738555842fd28072fedac20f99de12a1f64724d834bfcc3be9c857ca81708660

  • SHA512

    b40053d19d7670ecad1cb2dab8305f400c9b20e7edd9fffd1aa5ab62c84eabb3369dd29a90fda7d7283210efe2df0b5d75fa4a6e85f1d2b6274f8c0084d55966

Malware Config

Extracted

Family

agenttesla

Credentials

  • Protocol:
    smtp
  • Host:
    smtp.pharco--corp.com
  • Port:
    587
  • Username:
    [email protected]
  • Password:
    tHKfMRa2

Signatures

  • AgentTesla

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

  • AgentTesla Payload 6 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.

  • Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs
  • Suspicious use of SetThreadContext 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 5 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 9 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\Documentos de envío originales.exe
    "C:\Users\Admin\AppData\Local\Temp\Documentos de envío originales.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1580
    • C:\Users\Admin\AppData\Local\Temp\Documentos de envío originales.exe
      "{path}"
      2⤵
      • Accesses Microsoft Outlook profiles
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • outlook_office_path
      • outlook_win_path
      PID:2000

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

Loading Replay Monitor...

Downloads

  • memory/1580-54-0x0000000000F90000-0x0000000001006000-memory.dmp

    Filesize

    472KB

  • memory/1580-55-0x0000000076811000-0x0000000076813000-memory.dmp

    Filesize

    8KB

  • memory/1580-56-0x00000000002D0000-0x00000000002DA000-memory.dmp

    Filesize

    40KB

  • memory/1580-57-0x0000000004E80000-0x0000000004EE8000-memory.dmp

    Filesize

    416KB

  • memory/1580-58-0x00000000051A0000-0x00000000051EC000-memory.dmp

    Filesize

    304KB

  • memory/2000-59-0x0000000000400000-0x000000000044C000-memory.dmp

    Filesize

    304KB

  • memory/2000-60-0x0000000000400000-0x000000000044C000-memory.dmp

    Filesize

    304KB

  • memory/2000-62-0x0000000000400000-0x000000000044C000-memory.dmp

    Filesize

    304KB

  • memory/2000-63-0x0000000000400000-0x000000000044C000-memory.dmp

    Filesize

    304KB

  • memory/2000-64-0x0000000000400000-0x000000000044C000-memory.dmp

    Filesize

    304KB

  • memory/2000-65-0x0000000000446F1E-mapping.dmp

  • memory/2000-67-0x0000000000400000-0x000000000044C000-memory.dmp

    Filesize

    304KB

  • memory/2000-69-0x0000000000400000-0x000000000044C000-memory.dmp

    Filesize

    304KB