Analysis

  • max time kernel
    133s
  • max time network
    122s
  • platform
    windows7_x64
  • resource
    win7-en-20210920
  • submitted
    20-10-2021 04:06

General

  • Target

    SecuriteInfo.com.Suspicious.Win32.Save.a.680.644.exe

  • Size

    471KB

  • MD5

    acfec59788ef7b27e7bf1a76737070ce

  • SHA1

    69f13032f27ed80787bf0ef46c9ba7afe20b5ca4

  • SHA256

    8ef9fa2906743f48e2cebc330e9d609e2c62baf0b37a025d4816d6202add22bf

  • SHA512

    e130af3095c47e325d0d7b40df819a240840287025d626a6dcd3a6270bbb35229e52c82f79be19fdc176ad1e621953b52e1c799eb46f8cb0fb265baf9aeced67

Malware Config

Extracted

Family

agenttesla

Credentials

  • Protocol:
    smtp
  • Host:
    mail.davaobay.com.ph
  • Port:
    587
  • Username:
    [email protected]
  • Password:
    p@ssw0rd

Signatures

  • AgentTesla

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

  • AgentTesla Payload 5 IoCs
  • Drops file in Drivers directory 1 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
  • Adds Run key to start application 2 TTPs 1 IoCs
  • Suspicious use of SetThreadContext 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 9 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.Suspicious.Win32.Save.a.680.644.exe
    "C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.Suspicious.Win32.Save.a.680.644.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:1324
    • C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.Suspicious.Win32.Save.a.680.644.exe
      "C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.Suspicious.Win32.Save.a.680.644.exe"
      2⤵
      • Drops file in Drivers directory
      • Accesses Microsoft Outlook profiles
      • Adds Run key to start application
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • outlook_office_path
      • outlook_win_path
      PID:1160

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

Loading Replay Monitor...

Downloads

  • memory/1160-64-0x00000000004376CE-mapping.dmp

  • memory/1160-59-0x0000000000400000-0x000000000043C000-memory.dmp

    Filesize

    240KB

  • memory/1160-60-0x0000000000400000-0x000000000043C000-memory.dmp

    Filesize

    240KB

  • memory/1160-61-0x0000000000400000-0x000000000043C000-memory.dmp

    Filesize

    240KB

  • memory/1160-62-0x0000000000400000-0x000000000043C000-memory.dmp

    Filesize

    240KB

  • memory/1160-63-0x0000000000400000-0x000000000043C000-memory.dmp

    Filesize

    240KB

  • memory/1160-65-0x0000000000400000-0x000000000043C000-memory.dmp

    Filesize

    240KB

  • memory/1160-67-0x0000000004980000-0x0000000004981000-memory.dmp

    Filesize

    4KB

  • memory/1160-68-0x0000000004981000-0x0000000004982000-memory.dmp

    Filesize

    4KB

  • memory/1324-56-0x0000000004380000-0x0000000004381000-memory.dmp

    Filesize

    4KB

  • memory/1324-57-0x0000000000470000-0x0000000000477000-memory.dmp

    Filesize

    28KB

  • memory/1324-58-0x0000000002150000-0x00000000021A8000-memory.dmp

    Filesize

    352KB

  • memory/1324-54-0x00000000000B0000-0x00000000000B1000-memory.dmp

    Filesize

    4KB