Analysis

  • max time kernel
    102s
  • max time network
    107s
  • platform
    windows7_x64
  • resource
    win7
  • submitted
    30-06-2020 13:09

General

  • Target

    Quote CIF Port of Antwerp-Belgium.exe

  • Size

    399KB

  • MD5

    894bba1f722f354c53812117ae828ed5

  • SHA1

    99c78b529d2a2b890426f427e5d50b78ea4e54b8

  • SHA256

    f0f3f94877ac55a99e46669fa232ef88e1646b019864a27229be3ab23a17bf85

  • SHA512

    5170680556585303d60aa8a7dc845ddce7a1d0cd3fd05b855ddad079f1ffd9f92fcb3b8213def003fab087c6be737fa75a44f55a638ac3009dc1a176d3ee8a75

Malware Config

Extracted

Family

agenttesla

Credentials

  • Protocol:
    smtp
  • Host:
    premium57.web-hosting.com
  • Port:
    587
  • Username:
    japan-dea@zoomexpress.online
  • Password:
    Goodboy123??

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
  • 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 4 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 21 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\Quote CIF Port of Antwerp-Belgium.exe
    "C:\Users\Admin\AppData\Local\Temp\Quote CIF Port of Antwerp-Belgium.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1060
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\XdObrFTgrHQrYP" /XML "C:\Users\Admin\AppData\Local\Temp\tmp8055.tmp"
      2⤵
      • Creates scheduled task(s)
      PID:1452
    • C:\Users\Admin\AppData\Local\Temp\Quote CIF Port of Antwerp-Belgium.exe
      "{path}"
      2⤵
        PID:1632
      • C:\Users\Admin\AppData\Local\Temp\Quote CIF Port of Antwerp-Belgium.exe
        "{path}"
        2⤵
          PID:1628
        • C:\Users\Admin\AppData\Local\Temp\Quote CIF Port of Antwerp-Belgium.exe
          "{path}"
          2⤵
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          • Suspicious use of SetWindowsHookEx
          PID:788

      Network

      MITRE ATT&CK Matrix ATT&CK v6

      Execution

      Scheduled Task

      1
      T1053

      Persistence

      Scheduled Task

      1
      T1053

      Privilege Escalation

      Scheduled Task

      1
      T1053

      Credential Access

      Credentials in Files

      3
      T1081

      Discovery

      System Information Discovery

      1
      T1082

      Collection

      Data from Local System

      3
      T1005

      Replay Monitor

      Loading Replay Monitor...

      Downloads

      • C:\Users\Admin\AppData\Local\Temp\tmp8055.tmp
        MD5

        69130be6fe7a8ca2f49276540688b336

        SHA1

        240ebc7d783d410ae3426d8af22fcc59c23d2856

        SHA256

        d722d2750f330e7fc85134cf08b1dfae6e23ebc5cd527d4d4f62b13c534921c9

        SHA512

        4404c22571ea911fe27d08bae66ac63b0df5133023a505d5dc593725d63b84c0072ea09b1967607927f0aff68e695393bc3567abb51c2da92ceb537896e04810

      • memory/788-4-0x0000000000400000-0x000000000044C000-memory.dmp
        Filesize

        304KB

      • memory/788-5-0x0000000000446E5E-mapping.dmp
      • memory/788-6-0x0000000000400000-0x000000000044C000-memory.dmp
        Filesize

        304KB

      • memory/788-7-0x0000000000400000-0x000000000044C000-memory.dmp
        Filesize

        304KB

      • memory/1060-1-0x0000000000000000-0x0000000000000000-disk.dmp
      • memory/1452-2-0x0000000000000000-mapping.dmp