Analysis

  • max time kernel
    118s
  • max time network
    116s
  • platform
    windows10_x64
  • resource
    win10
  • submitted
    07-07-2020 04:57

General

  • Target

    RFQ 6000042792.PDF.exe

  • Size

    548KB

  • MD5

    6b538910b66bd70524bbe8bfbac91c76

  • SHA1

    80b6cee0f5c0580892b479e976aa835e8f46ff22

  • SHA256

    63d5c6ab54621dc7cce4296d6859fff4ca1084c8d9245ed80533fde9b494d908

  • SHA512

    e60484d679c2c318dc4206e0980c3aa8add8ff053a725c545a347c63b9d9f5b630c47c7c6117faa19e1c6b6ee5ce41c26d5be0530621bed4d1ee929ab7334287

Malware Config

Extracted

Credentials

  • Protocol:
    smtp
  • Host:
    smtp.portsen.com
  • Port:
    587
  • Username:
    [email protected]
  • Password:
    Nkhp*pE1

Signatures

  • 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.

  • AgentTesla

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

  • Suspicious use of WriteProcessMemory 8 IoCs
  • Suspicious use of SetThreadContext 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious behavior: EnumeratesProcesses 3 IoCs
  • Reads user/profile data of web browsers 2 TTPs

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

Processes

  • C:\Users\Admin\AppData\Local\Temp\RFQ 6000042792.PDF.exe
    "C:\Users\Admin\AppData\Local\Temp\RFQ 6000042792.PDF.exe"
    1⤵
    • Suspicious use of WriteProcessMemory
    • Suspicious use of SetThreadContext
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious behavior: EnumeratesProcesses
    PID:2976
    • C:\Users\Admin\AppData\Local\Temp\RFQ 6000042792.PDF.exe
      "{path}"
      2⤵
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious behavior: EnumeratesProcesses
      PID:3840

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • memory/3840-0-0x0000000000400000-0x000000000044C000-memory.dmp

    Filesize

    304KB

  • memory/3840-1-0x00000000004472DE-mapping.dmp