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Analysis

  • max time kernel
    126s
  • max time network
    128s
  • platform
    windows10_x64
  • resource
    win10
  • submitted
    07/07/2020, 17:28

General

  • Target

    Pdf-1790098475756783844-022349.exe

  • Size

    536KB

  • MD5

    0febb8e8fefe6d08dadbe30e8a552ec1

  • SHA1

    516f9446d4fca65657769b41ca0b0c33e2a97a42

  • SHA256

    b04580b535d7a018ff5b8933e399b7b1497b3dfa896798fef656412a925ceb78

  • SHA512

    23814015cf78157fda8ddd815d5a09b7530c2ddea140258afd11b60fb71703a50f9d50c430125233d7617c71afa126adb6d40a812f575df554739488765c63d9

Malware Config

Extracted

Credentials

  • Protocol:
    smtp
  • Host:
    mail.chenklins.com
  • Port:
    587
  • Username:
    [email protected]
  • Password:
    7AY8Uj[tEN)a

Extracted

Family

agenttesla

Credentials

  • Protocol:
    smtp
  • Host:
    mail.chenklins.com
  • Port:
    587
  • Username:
    [email protected]
  • Password:
    7AY8Uj[tEN)a

Signatures

  • AgentTesla

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

  • AgentTesla Payload 2 IoCs
  • 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
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

  • Creates scheduled task(s) 1 TTPs 1 IoCs

    Schtasks is often used by malware for persistence or to perform post-infection execution.

  • Suspicious behavior: EnumeratesProcesses 3 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 11 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\Pdf-1790098475756783844-022349.exe
    "C:\Users\Admin\AppData\Local\Temp\Pdf-1790098475756783844-022349.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2460
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\PAxNIGvPlC" /XML "C:\Users\Admin\AppData\Local\Temp\tmp67AE.tmp"
      2⤵
      • Creates scheduled task(s)
      PID:3348
    • C:\Users\Admin\AppData\Local\Temp\Pdf-1790098475756783844-022349.exe
      "{path}"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of SetWindowsHookEx
      PID:3772

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • memory/3772-2-0x0000000000400000-0x000000000044C000-memory.dmp

    Filesize

    304KB