Analysis

  • max time kernel
    70s
  • max time network
    143s
  • platform
    windows10_x64
  • resource
    win10
  • submitted
    07-07-2020 09:44

General

  • Target

    Scan doc.exe

  • Size

    776KB

  • MD5

    998dc4993b24a9e7a5e3c42d140dd002

  • SHA1

    34375c9f17328c6cc93cecac0a8b517c6574fb0d

  • SHA256

    41649c5c44d64e2764e4753b6d458589dedca163d8a0a365f05fd50261465e38

  • SHA512

    54541baf6caea77a81344dd4843e51548078624b25d0190b2314f313af7574123a767d9a0f18dd966da7819a163c8e26bbc41379d2c1d696b5dd59a1af918616

Malware Config

Extracted

Credentials

  • Protocol:
    smtp
  • Host:
    smtp.yandex.com
  • Port:
    587
  • Username:
    [email protected]
  • Password:
    Simple262627

Signatures

  • Suspicious behavior: MapViewOfSection 1 IoCs
  • Reads user/profile data of web browsers 2 TTPs

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

  • Suspicious use of AdjustPrivilegeToken 1 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.

  • AgentTesla

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

  • Suspicious behavior: EnumeratesProcesses 4 IoCs
  • Suspicious use of WriteProcessMemory 3 IoCs
  • Suspicious use of SetThreadContext 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\Scan doc.exe
    "C:\Users\Admin\AppData\Local\Temp\Scan doc.exe"
    1⤵
    • Suspicious behavior: MapViewOfSection
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of WriteProcessMemory
    • Suspicious use of SetThreadContext
    PID:2460
    • C:\Users\Admin\AppData\Local\Temp\Scan doc.exe
      "C:\Users\Admin\AppData\Local\Temp\Scan doc.exe"
      2⤵
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious behavior: EnumeratesProcesses
      PID:3876

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

Loading Replay Monitor...

Downloads

  • memory/3876-0-0x0000000000400000-0x00000000004A5000-memory.dmp

    Filesize

    660KB

  • memory/3876-1-0x00000000004A3910-mapping.dmp

  • memory/3876-2-0x0000000000400000-0x00000000004A5000-memory.dmp

    Filesize

    660KB

  • memory/3876-3-0x0000000000400000-0x00000000004A5000-memory.dmp

    Filesize

    660KB

  • memory/3876-4-0x0000000002190000-0x00000000021DC000-memory.dmp

    Filesize

    304KB

  • memory/3876-5-0x0000000002292000-0x0000000002293000-memory.dmp

    Filesize

    4KB