Analysis

  • max time kernel
    62s
  • max time network
    144s
  • platform
    windows10_x64
  • resource
    win10
  • submitted
    13-07-2020 06:30

General

  • Target

    DHLs.exe

  • Size

    969KB

  • MD5

    0fad3be245133a44503adbbe6c3f3629

  • SHA1

    35940b44a83547d5e78ad8ba9c8e797d90325ee2

  • SHA256

    de1d1aff1d7ab389137414faef7f0a2d192d6cf7ab5ed79549c4fdce17e36cd1

  • SHA512

    6a043e8ef5bf84728b8a2bbc7ff4d137d9d9b57dab01b3a6449e3b89b11c5d6d64138e83f73fe359c2530ed7f52eb1ac2f95c741eaa3cec6ce490d8a0d6fdc74

Malware Config

Extracted

Credentials

  • Protocol:
    smtp
  • Host:
    smtp.yandex.com
  • Port:
    587
  • Username:
    [email protected]
  • Password:
    daddyhandsome1234

Signatures

  • Reads user/profile data of web browsers 2 TTPs

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

  • Reads data files stored by FTP clients 2 TTPs

    Tries to access configuration files associated with programs like FileZilla.

  • AgentTesla

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

  • Suspicious use of WriteProcessMemory 9 IoCs
  • UPX packed file 3 IoCs

    Detects executables packed with UPX/modified UPX open source packer.

  • Suspicious use of SetThreadContext 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Reads user/profile data of local email clients 2 TTPs

    Email clients store some user data on disk where infostealers will often target it.

  • Suspicious behavior: EnumeratesProcesses 20 IoCs
  • Suspicious behavior: MapViewOfSection 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\DHLs.exe
    "C:\Users\Admin\AppData\Local\Temp\DHLs.exe"
    1⤵
    • Suspicious use of WriteProcessMemory
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious behavior: MapViewOfSection
    PID:3728
    • C:\Users\Admin\AppData\Local\Temp\DHLs.exe
      "C:\Users\Admin\AppData\Local\Temp\DHLs.exe"
      2⤵
      • Suspicious use of WriteProcessMemory
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious behavior: EnumeratesProcesses
      PID:3912
      • C:\Windows\SysWOW64\netsh.exe
        "netsh" wlan show profile
        3⤵
          PID:3224
      • C:\Users\Admin\AppData\Local\Temp\DHLs.exe
        "C:\Users\Admin\AppData\Local\Temp\DHLs.exe" 2 3912 64375
        2⤵
        • Suspicious behavior: EnumeratesProcesses
        PID:3924

    Network

    MITRE ATT&CK Matrix ATT&CK v6

    Credential Access

    Credentials in Files

    3
    T1081

    Collection

    Data from Local System

    3
    T1005

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • memory/3224-7-0x0000000000000000-mapping.dmp
    • memory/3912-0-0x0000000000400000-0x00000000004B1000-memory.dmp
      Filesize

      708KB

    • memory/3912-1-0x00000000004AF740-mapping.dmp
    • memory/3912-3-0x0000000000400000-0x00000000004B1000-memory.dmp
      Filesize

      708KB

    • memory/3912-4-0x0000000000400000-0x00000000004B1000-memory.dmp
      Filesize

      708KB

    • memory/3912-5-0x00000000006C0000-0x0000000000712000-memory.dmp
      Filesize

      328KB

    • memory/3912-6-0x00000000022E2000-0x00000000022E3000-memory.dmp
      Filesize

      4KB

    • memory/3924-2-0x0000000000000000-mapping.dmp