Analysis

  • max time kernel
    62s
  • max time network
    120s
  • platform
    windows10_x64
  • resource
    win10v200722
  • submitted
    05/10/2020, 11:12

General

  • Target
    ce76e25ac5c9b3f431829b0c7e79f2f6.exe
  • Size 847KB
  • Sample201005-ryf3sgflxn
  • SHA256 4c2e0930bdf8d7e4f74a6b005ce1a1fdf1fe3a77ea4b1b88d7ec4ec4d9d9655e
  • MD5 SHA1 SHA512

Malware Config

Extracted

Credentials
  • Protocol

    smtp

  • Host

    bh-58.webhostbox.net

  • Port

    587

  • Password

    7213575aceACE@#$

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.

  • 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\ce76e25ac5c9b3f431829b0c7e79f2f6.exe
    "C:\Users\Admin\AppData\Local\Temp\ce76e25ac5c9b3f431829b0c7e79f2f6.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious behavior: MapViewOfSection
    • Suspicious use of WriteProcessMemory
    PID:3816
    • C:\Users\Admin\AppData\Local\Temp\ce76e25ac5c9b3f431829b0c7e79f2f6.exe
      "C:\Users\Admin\AppData\Local\Temp\ce76e25ac5c9b3f431829b0c7e79f2f6.exe"
      2⤵
      • Adds Run key to start application
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2548

Network

        MITRE ATT&CK Enterprise v6

        Replay Monitor

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        Downloads

        memory/2548-1-0x0000000000400000-0x00000000004D8000-memory.dmp

        memory/2548-3-0x0000000000400000-0x00000000004D8000-memory.dmp

        memory/2548-4-0x0000000000400000-0x00000000004D8000-memory.dmp

        memory/2548-5-0x0000000002190000-0x00000000021F6000-memory.dmp

        memory/2548-6-0x0000000002292000-0x0000000002293000-memory.dmp

        memory/3816-0-0x0000000000400000-0x00000000004DA000-memory.dmp