Analysis

  • max time kernel
    97s
  • max time network
    9s
  • platform
    windows7_x64
  • resource
    win7v20201028
  • submitted
    12-01-2021 18:03

General

  • Target

    Quote ROE-127488-MU.exe

  • Size

    410KB

  • MD5

    1b6fb40e9a89fdd6c7aebc89e67ad816

  • SHA1

    fe65563016c0e947f4ceb2337a1f6033cf259680

  • SHA256

    a2426979e333a461d082c90eae873f236b7a82fcf08819404d2f99a3e867c450

  • SHA512

    e0d264962c8912fda26cf87418c8426294e77e4b5cacaf43469934d281da327fecb73582fcd0588191c9131ab4953d2179a8b79357260a9a53200884e50f7ee5

Malware Config

Extracted

Family

agenttesla

Credentials

  • Protocol:
    smtp
  • Host:
    smtp.yandex.com
  • Port:
    587
  • Username:
    [email protected]
  • Password:
    @infinitY1234

Signatures

  • AgentTesla

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

  • AgentTesla Payload 4 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
  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious behavior: MapViewOfSection 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 13 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\Quote ROE-127488-MU.exe
    "C:\Users\Admin\AppData\Local\Temp\Quote ROE-127488-MU.exe"
    1⤵
    • Suspicious behavior: MapViewOfSection
    • Suspicious use of WriteProcessMemory
    PID:648
    • C:\Users\Admin\AppData\Local\Temp\Quote ROE-127488-MU.exe
      "C:\Users\Admin\AppData\Local\Temp\Quote ROE-127488-MU.exe"
      2⤵
        PID:1440
      • C:\Users\Admin\AppData\Local\Temp\Quote ROE-127488-MU.exe
        "C:\Users\Admin\AppData\Local\Temp\Quote ROE-127488-MU.exe"
        2⤵
        • Suspicious use of SetThreadContext
        • Suspicious behavior: MapViewOfSection
        • Suspicious use of WriteProcessMemory
        PID:1344
        • C:\Users\Admin\AppData\Local\Temp\Quote ROE-127488-MU.exe
          "C:\Users\Admin\AppData\Local\Temp\Quote ROE-127488-MU.exe"
          3⤵
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          PID:1676

    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/648-2-0x0000000000160000-0x0000000000182000-memory.dmp
      Filesize

      136KB

    • memory/1344-3-0x0000000000000000-mapping.dmp
    • memory/1676-4-0x0000000000400000-0x000000000044C000-memory.dmp
      Filesize

      304KB

    • memory/1676-5-0x000000000040188B-mapping.dmp
    • memory/1676-6-0x0000000000400000-0x000000000044C000-memory.dmp
      Filesize

      304KB

    • memory/1676-7-0x0000000074610000-0x0000000074CFE000-memory.dmp
      Filesize

      6.9MB

    • memory/1676-8-0x0000000001DE0000-0x0000000001E17000-memory.dmp
      Filesize

      220KB