Analysis

  • max time kernel
    107s
  • max time network
    31s
  • platform
    windows7_x64
  • resource
    win7
  • submitted
    19/10/2020, 06:39

General

  • Target
    ebuka.exe
  • Size 212KB
  • Sample201019-p5wymc9fc2
  • SHA256 a47357333cedf89cd51745ccd03a9bc33653e6aa5dcce2214934286d7c6b727d
  • MD5 SHA1 SHA512

Malware Config

Extracted

Family
  • agenttesla

Credentials
  • Protocol

    smtp

  • Host

    mail.soaluga.pt

  • Port

    587

  • Password

    Vw6@hLn7i^Ed

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 NtSetInformationThreadHideFromDebugger 12 IoCs
  • Suspicious use of SetThreadContext 1 IoCs
  • Program crash 1 IoCs
  • Delays execution with timeout.exe 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 10 IoCs
  • Suspicious use of AdjustPrivilegeToken 3 IoCs
  • Suspicious use of WriteProcessMemory 17 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\ebuka.exe
    "C:\Users\Admin\AppData\Local\Temp\ebuka.exe"
    1⤵
    • Suspicious use of NtSetInformationThreadHideFromDebugger
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1072
    • C:\Windows\SysWOW64\timeout.exe
      timeout 4
      2⤵
      • Delays execution with timeout.exe
      PID:1544
    • C:\Users\Admin\AppData\Local\Temp\ebuka.exe
      "C:\Users\Admin\AppData\Local\Temp\ebuka.exe"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:1904
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 1072 -s 1548
      2⤵
      • Program crash
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:1868

Network

        MITRE ATT&CK Enterprise v6

        Replay Monitor

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        Downloads

        memory/1072-0-0x00000000740F0000-0x00000000747DE000-memory.dmp

        memory/1072-1-0x00000000013D0000-0x00000000013D1000-memory.dmp

        memory/1072-3-0x0000000005080000-0x00000000050C4000-memory.dmp

        memory/1868-12-0x0000000001C60000-0x0000000001C71000-memory.dmp

        memory/1868-15-0x0000000002360000-0x0000000002371000-memory.dmp

        memory/1904-4-0x0000000000400000-0x000000000043C000-memory.dmp

        memory/1904-6-0x0000000000400000-0x000000000043C000-memory.dmp

        memory/1904-7-0x0000000000400000-0x000000000043C000-memory.dmp

        memory/1904-8-0x00000000740F0000-0x00000000747DE000-memory.dmp