Analysis

  • max time kernel
    126s
  • max time network
    149s
  • platform
    windows10_x64
  • resource
    win10v200430
  • submitted
    10/07/2020, 05:54

General

  • Target
    Scan copy.exe
  • Size 805KB
  • Sample200710-s1s22d1sl2
  • SHA256 9a63f91e52508b6a45b057bc3d6bfe71a76937316d65f65e6d49b765bf8e1392
  • MD5 SHA1 SHA512

Malware Config

Extracted

Family
  • agenttesla

Credentials
  • Protocol

    smtp

  • Host

    smtp.yandex.com

  • Port

    587

  • Password

    Simple262627

Signatures

  • AgentTesla

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

  • AgentTesla Payload 2 IoCs
  • UPX packed file 3 IoCs

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

  • 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
  • Suspicious behavior: EnumeratesProcesses 4 IoCs
  • Suspicious behavior: MapViewOfSection 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 3 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\Scan copy.exe
    "C:\Users\Admin\AppData\Local\Temp\Scan copy.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious behavior: MapViewOfSection
    • Suspicious use of WriteProcessMemory
    PID:1624
    • C:\Users\Admin\AppData\Local\Temp\Scan copy.exe
      "C:\Users\Admin\AppData\Local\Temp\Scan copy.exe"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:1720

Network

        MITRE ATT&CK Enterprise v6

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        memory/1720-0-0x0000000000400000-0x00000000004A5000-memory.dmp

        memory/1720-2-0x0000000000400000-0x00000000004A5000-memory.dmp

        memory/1720-3-0x0000000000400000-0x00000000004A5000-memory.dmp

        memory/1720-4-0x00000000009E0000-0x0000000000A2C000-memory.dmp

        memory/1720-5-0x0000000002392000-0x0000000002393000-memory.dmp