Analysis

  • max time kernel
    63s
  • max time network
    110s
  • platform
    windows10_x64
  • resource
    win10v20201028
  • submitted
    09/11/2020, 19:35

General

  • Target
    PaymentNotification.exe
  • Size 622KB
  • Sample201109-85pcd6241a
  • SHA256 32590b9b3bfcfdb90612b8f3f15da11f29bde6c5bd47ed3b61fc701c7073e4d4
  • MD5 SHA1 SHA512

Malware Config

Extracted

Family
  • agenttesla

Credentials
  • Protocol

    smtp

  • Host

    smtp.yandex.ru

  • Port

    587

  • Password

    Mix2lower12?..

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.

  • 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\PaymentNotification.exe
    "C:\Users\Admin\AppData\Local\Temp\PaymentNotification.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious behavior: MapViewOfSection
    • Suspicious use of WriteProcessMemory
    PID:816
    • C:\Users\Admin\AppData\Local\Temp\PaymentNotification.exe
      "C:\Users\Admin\AppData\Local\Temp\PaymentNotification.exe"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:700

Network

        MITRE ATT&CK Enterprise v6

        Replay Monitor

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        Downloads

        memory/700-0-0x0000000000400000-0x00000000004A5000-memory.dmp

        memory/700-2-0x0000000000400000-0x00000000004A5000-memory.dmp

        memory/700-3-0x0000000000400000-0x00000000004A5000-memory.dmp

        memory/700-4-0x0000000000A00000-0x0000000000A4C000-memory.dmp

        memory/700-5-0x00000000005D2000-0x00000000005D3000-memory.dmp

        memory/700-6-0x0000000073B70000-0x000000007425E000-memory.dmp

        memory/700-9-0x0000000004A80000-0x0000000004A81000-memory.dmp

        memory/700-10-0x00000000049A0000-0x00000000049A1000-memory.dmp

        memory/700-11-0x0000000004940000-0x0000000004941000-memory.dmp

        memory/700-12-0x0000000005370000-0x0000000005371000-memory.dmp

        memory/700-13-0x0000000005BA0000-0x0000000005BA1000-memory.dmp

        memory/700-14-0x0000000005780000-0x0000000005781000-memory.dmp