Analysis

  • max time kernel
    146s
  • max time network
    121s
  • platform
    windows7_x64
  • resource
    win7-20240221-en
  • resource tags

    arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
  • submitted
    28-03-2024 10:26

General

  • Target

    Scan docs. pdf...................exe

  • Size

    395KB

  • MD5

    1be69ae48470bc61f9d9a3dadac1332b

  • SHA1

    70fd3849d42ea40e4df52a4f388abfd099d8d892

  • SHA256

    43503c2141f4ee3c30d73dc4cec26f079074c25cd4487ce9de32b9f36c73a871

  • SHA512

    5d9bb581ec611702edf57317877cc15d60a9b096309b7a10b8bc1ff8c057d0dc7519b63b00e24253062ec6d16047c8220485f886a653dea97933dda47cd38c2e

  • SSDEEP

    6144:j682Y/iAwiLUMmYHCpjibNHqqv//EnbRXPtv167ygKbJRgF+UyEVUK+RuLINk:jhKAoM5HhAqvYbHt67ygKbJP8UUM

Malware Config

Extracted

Family

agenttesla

Credentials

  • Protocol:
    smtp
  • Host:
    mail.nicedoc.biz
  • Port:
    587
  • Username:
    simple@nicedoc.biz
  • Password:
    simple2626

Signatures

  • AgentTesla

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

  • AgentTesla payload 5 IoCs
  • Reads WinSCP keys stored on the system 2 TTPs

    Tries to access WinSCP stored sessions.

  • 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.

  • Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs
  • Suspicious use of SetThreadContext 1 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s).

  • 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 13 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of SetWindowsHookEx 2 IoCs
  • Suspicious use of WriteProcessMemory 21 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\Scan docs. pdf...................exe
    "C:\Users\Admin\AppData\Local\Temp\Scan docs. pdf...................exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:3016
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\OmIpirzuSc" /XML "C:\Users\Admin\AppData\Local\Temp\tmp6DB1.tmp"
      2⤵
      • Creates scheduled task(s)
      PID:2528
    • C:\Users\Admin\AppData\Local\Temp\Scan docs. pdf...................exe
      "C:\Users\Admin\AppData\Local\Temp\Scan docs. pdf...................exe"
      2⤵
        PID:2904
      • C:\Users\Admin\AppData\Local\Temp\Scan docs. pdf...................exe
        "C:\Users\Admin\AppData\Local\Temp\Scan docs. pdf...................exe"
        2⤵
          PID:2452
        • C:\Users\Admin\AppData\Local\Temp\Scan docs. pdf...................exe
          "C:\Users\Admin\AppData\Local\Temp\Scan docs. pdf...................exe"
          2⤵
          • Accesses Microsoft Outlook profiles
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          • outlook_office_path
          • outlook_win_path
          PID:3024

      Network

      MITRE ATT&CK Matrix ATT&CK v13

      Execution

      Scheduled Task/Job

      1
      T1053

      Persistence

      Scheduled Task/Job

      1
      T1053

      Privilege Escalation

      Scheduled Task/Job

      1
      T1053

      Credential Access

      Unsecured Credentials

      4
      T1552

      Credentials In Files

      3
      T1552.001

      Credentials in Registry

      1
      T1552.002

      Discovery

      System Information Discovery

      1
      T1082

      Collection

      Data from Local System

      4
      T1005

      Email Collection

      1
      T1114

      Replay Monitor

      Loading Replay Monitor...

      Downloads

      • memory/3016-26-0x0000000074A30000-0x000000007511E000-memory.dmp
        Filesize

        6.9MB

      • memory/3016-2-0x00000000048A0000-0x00000000048E0000-memory.dmp
        Filesize

        256KB

      • memory/3016-0-0x00000000002E0000-0x000000000034A000-memory.dmp
        Filesize

        424KB

      • memory/3016-3-0x00000000048A0000-0x00000000048E0000-memory.dmp
        Filesize

        256KB

      • memory/3016-4-0x00000000020B0000-0x00000000020BE000-memory.dmp
        Filesize

        56KB

      • memory/3016-5-0x0000000074A30000-0x000000007511E000-memory.dmp
        Filesize

        6.9MB

      • memory/3016-6-0x00000000048A0000-0x00000000048E0000-memory.dmp
        Filesize

        256KB

      • memory/3016-7-0x00000000048A0000-0x00000000048E0000-memory.dmp
        Filesize

        256KB

      • memory/3016-8-0x0000000008410000-0x0000000008470000-memory.dmp
        Filesize

        384KB

      • memory/3016-1-0x0000000074A30000-0x000000007511E000-memory.dmp
        Filesize

        6.9MB

      • memory/3024-31-0x0000000002100000-0x0000000002140000-memory.dmp
        Filesize

        256KB

      • memory/3024-14-0x0000000000400000-0x000000000043C000-memory.dmp
        Filesize

        240KB

      • memory/3024-19-0x0000000000400000-0x000000000043C000-memory.dmp
        Filesize

        240KB

      • memory/3024-20-0x000000007EFDE000-0x000000007EFDF000-memory.dmp
        Filesize

        4KB

      • memory/3024-22-0x0000000000400000-0x000000000043C000-memory.dmp
        Filesize

        240KB

      • memory/3024-18-0x0000000000400000-0x000000000043C000-memory.dmp
        Filesize

        240KB

      • memory/3024-24-0x0000000000400000-0x000000000043C000-memory.dmp
        Filesize

        240KB

      • memory/3024-27-0x0000000000400000-0x000000000043C000-memory.dmp
        Filesize

        240KB

      • memory/3024-28-0x00000000749B0000-0x000000007509E000-memory.dmp
        Filesize

        6.9MB

      • memory/3024-29-0x0000000002100000-0x0000000002140000-memory.dmp
        Filesize

        256KB

      • memory/3024-30-0x00000000749B0000-0x000000007509E000-memory.dmp
        Filesize

        6.9MB

      • memory/3024-16-0x0000000000400000-0x000000000043C000-memory.dmp
        Filesize

        240KB