Analysis

  • max time kernel
    61s
  • max time network
    111s
  • platform
    windows10_x64
  • resource
    win10v20201028
  • submitted
    09/11/2020, 20:40

General

  • Target
    2d458021791e8b5a0e525eae94edd855.exe
  • Size 695KB
  • Sample201109-33vjtkrx6e
  • SHA256 5dd4ce47e282ef174b47b0fe99ecbe45c041610d654884cffa960e2ddb143b70
  • MD5 SHA1 SHA512

Malware Config

Extracted

Family
  • agenttesla

Credentials
  • Protocol

    smtp

  • Host

    dutchlogs.us

  • Port

    587

  • Password

    7213575aceACE@

Signatures

  • AgentTesla

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

  • AgentTesla Payload 3 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.

  • Adds Run key to start application 2 TTPs 1 IoCs
  • 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\2d458021791e8b5a0e525eae94edd855.exe
    "C:\Users\Admin\AppData\Local\Temp\2d458021791e8b5a0e525eae94edd855.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious behavior: MapViewOfSection
    • Suspicious use of WriteProcessMemory
    PID:2432
    • C:\Users\Admin\AppData\Local\Temp\2d458021791e8b5a0e525eae94edd855.exe
      "C:\Users\Admin\AppData\Local\Temp\2d458021791e8b5a0e525eae94edd855.exe"
      2⤵
      • Adds Run key to start application
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:4000

Network

        MITRE ATT&CK Enterprise v6

        Replay Monitor

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        Downloads

        memory/4000-0-0x0000000000400000-0x00000000004A5000-memory.dmp

        memory/4000-2-0x0000000000400000-0x00000000004A5000-memory.dmp

        memory/4000-3-0x0000000000400000-0x00000000004A5000-memory.dmp

        memory/4000-4-0x00000000009A0000-0x00000000009EC000-memory.dmp

        memory/4000-5-0x00000000022E2000-0x00000000022E3000-memory.dmp

        memory/4000-6-0x0000000073460000-0x0000000073B4E000-memory.dmp

        memory/4000-9-0x0000000004A50000-0x0000000004A51000-memory.dmp

        memory/4000-10-0x0000000004930000-0x0000000004931000-memory.dmp

        memory/4000-11-0x00000000024B0000-0x00000000024B1000-memory.dmp

        memory/4000-12-0x0000000005440000-0x0000000005441000-memory.dmp

        memory/4000-13-0x0000000005CE0000-0x0000000005CE1000-memory.dmp

        memory/4000-14-0x00000000058E0000-0x00000000058E1000-memory.dmp