Overview

overview

10

Static

static

invoice-copy.pdf.exe

windows7_x64

10

invoice-copy.pdf.exe

windows10_x64

10

Analysis

  • max time kernel
    123s
  • max time network
    149s
  • platform
    windows10_x64
  • resource
    win10v200430
  • submitted
    01/07/2020, 11:44

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General

  • Target
    invoice-copy.pdf.exe
  • Size 972KB
  • Sample200701-jt7vagnsrn
  • SHA256 c2f7201fbbac834fd195357d9e0cb6c5dad2bcebeba1718a43c5ca92c9400f39
  • MD5 SHA1 SHA512
Score
10/10
persistencespywarekeyloggertrojanstealeragenttesla

Malware Config

Extracted

Credentials
  • Protocol

    smtp
  • Host

    smtp.yltab.com
  • Port

    587
  • Username

    [email protected]
  • Password

    VdwhsPd5

Signatures

  • Adds Run entry to start application 2 TTPs 1 IoCs
    persistence
  • Reads user/profile data of web browsers 2 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

    spyware
  • Suspicious behavior: EnumeratesProcesses 4 IoCs
  • Suspicious use of WriteProcessMemory 11 IoCs
  • Suspicious behavior: MapViewOfSection 1 IoCs
  • Suspicious use of SetThreadContext 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Drops startup file 1 IoCs
  • Reads data files stored by FTP clients 2 TTPs

    Tries to access configuration files associated with programs like FileZilla.

    spyware
  • UPX packed file 3 IoCs

    Detects executables packed with UPX/modified UPX open source packer.

  • Reads user/profile data of local email clients 2 TTPs

    Email clients store some user data on disk where infostealers will often target it.

    spyware
  • AgentTesla

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

    keyloggertrojanstealerspywareagenttesla

Processes

  • C:\Users\Admin\AppData\Local\Temp\invoice-copy.pdf.exe
    "C:\Users\Admin\AppData\Local\Temp\invoice-copy.pdf.exe"
    1⤵
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of WriteProcessMemory
    • Suspicious behavior: MapViewOfSection
    • Suspicious use of SetThreadContext
    PID:2536
    • C:\Windows\SysWOW64\notepad.exe
      "C:\Windows\system32\notepad.exe"
      2⤵
      • Drops startup file
      PID:1180
    • C:\Users\Admin\AppData\Local\Temp\invoice-copy.pdf.exe
      "C:\Users\Admin\AppData\Local\Temp\invoice-copy.pdf.exe"
      2⤵
      • Adds Run entry to start application
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of WriteProcessMemory
      • Suspicious use of AdjustPrivilegeToken
      PID:1248
      • C:\Windows\SysWOW64\netsh.exe
        "netsh" wlan show profile
        3⤵
          PID:3020

    Network

          MITRE ATT&CK Enterprise v6

          Replay Monitor

          Loading Replay Monitor...

          Downloads

          memory/1248-1-0x0000000000400000-0x00000000004B0000-memory.dmp
          Download

          memory/1248-3-0x0000000000400000-0x00000000004B0000-memory.dmp
          Download

          memory/1248-4-0x0000000000400000-0x00000000004B0000-memory.dmp
          Download

          memory/1248-5-0x00000000021B0000-0x0000000002202000-memory.dmp
          Download

          memory/1248-6-0x00000000022D2000-0x00000000022D3000-memory.dmp
          Download