Analysis

  • max time kernel
    149s
  • max time network
    153s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240508-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system
  • submitted
    18/05/2024, 21:10

General

  • Target

    4ba9e0105a080cbb9cb9b547479e3cbec5c52b8ca39e1939b9f210389a8653d2.exe

  • Size

    894KB

  • MD5

    2137a17d91c13590a302d25e0d54039a

  • SHA1

    045c362c94ff15fc923f164a64639121e79b961b

  • SHA256

    4ba9e0105a080cbb9cb9b547479e3cbec5c52b8ca39e1939b9f210389a8653d2

  • SHA512

    af37a181d2fda473c73bc76ae3997e3dbb7e5a60d454803211be7a519aa8e513d8f45058191d123e21bc510397d0525f1f4b396d54d14423fffad543de2e529b

  • SSDEEP

    24576:Fs4e9k02lMgvVO4Zl3SMgI58BcGg2cvGj81rQGX5:FSk24Zl3SMgGCcGg2cvGj81rQGX5

Malware Config

Extracted

Credentials

  • Protocol:
    smtp
  • Host:
    smtp.oxcs.bluehost.com
  • Port:
    587
  • Username:
    [email protected]
  • Password:
    Johnson2024@

Signatures

  • AgentTesla

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

  • Detect packed .NET executables. Mostly AgentTeslaV4. 33 IoCs
  • Detects binaries (Windows and macOS) referencing many web browsers. Observed in information stealers. 33 IoCs
  • Detects binaries and memory artifacts referencing sandbox DLLs typically observed in sandbox evasion 33 IoCs
  • Detects executables referencing Windows vault credential objects. Observed in infostealers 33 IoCs
  • Detects executables referencing many confidential data stores found in browsers, mail clients, cryptocurreny wallets, etc. Observed in information stealers 33 IoCs
  • Detects executables referencing many email and collaboration clients. Observed in information stealers 33 IoCs
  • Detects executables referencing many file transfer clients. Observed in information stealers 33 IoCs
  • Executes dropped EXE 1 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.

  • Adds Run key to start application 2 TTPs 1 IoCs
  • Looks up external IP address via web service 3 IoCs

    Uses a legitimate IP lookup service to find the infected system's external IP.

  • Suspicious use of SetThreadContext 1 IoCs
  • Script User-Agent 2 IoCs

    Uses user-agent string associated with script host/environment.

  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 8 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\4ba9e0105a080cbb9cb9b547479e3cbec5c52b8ca39e1939b9f210389a8653d2.exe
    "C:\Users\Admin\AppData\Local\Temp\4ba9e0105a080cbb9cb9b547479e3cbec5c52b8ca39e1939b9f210389a8653d2.exe"
    1⤵
    • Adds Run key to start application
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:1216
    • C:\Windows\SysWOW64\extrac32.exe
      C:\\Windows\\System32\\extrac32.exe /C /Y C:\Users\Admin\AppData\Local\Temp\4ba9e0105a080cbb9cb9b547479e3cbec5c52b8ca39e1939b9f210389a8653d2.exe C:\\Users\\Public\\Libraries\\Bowxfxpv.PIF
      2⤵
        PID:3028
      • C:\Users\Public\Libraries\vpxfxwoB.pif
        C:\Users\Public\Libraries\vpxfxwoB.pif
        2⤵
        • Executes dropped EXE
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of SetWindowsHookEx
        PID:740

    Network

          MITRE ATT&CK Enterprise v15

          Replay Monitor

          Loading Replay Monitor...

          Downloads

          • C:\Users\Public\Libraries\vpxfxwoB.pif

            Filesize

            66KB

            MD5

            c116d3604ceafe7057d77ff27552c215

            SHA1

            452b14432fb5758b46f2897aeccd89f7c82a727d

            SHA256

            7bcdc2e607abc65ef93afd009c3048970d9e8d1c2a18fc571562396b13ebb301

            SHA512

            9202a00eeaf4c5be94de32fd41bfea40fc32d368955d49b7bad2b5c23c4ebc92dccb37d99f5a14e53ad674b63f1baa6efb1feb27225c86693ead3262a26d66c6

          • memory/740-9-0x0000000000400000-0x0000000001400000-memory.dmp

            Filesize

            16.0MB

          • memory/740-12-0x0000000000400000-0x0000000001400000-memory.dmp

            Filesize

            16.0MB

          • memory/740-14-0x0000000074F7E000-0x0000000074F7F000-memory.dmp

            Filesize

            4KB

          • memory/740-15-0x0000000049A70000-0x0000000049AC6000-memory.dmp

            Filesize

            344KB

          • memory/740-16-0x0000000074F70000-0x0000000075720000-memory.dmp

            Filesize

            7.7MB

          • memory/740-17-0x0000000074F70000-0x0000000075720000-memory.dmp

            Filesize

            7.7MB

          • memory/740-18-0x000000004C490000-0x000000004CA34000-memory.dmp

            Filesize

            5.6MB

          • memory/740-19-0x000000004C2D0000-0x000000004C324000-memory.dmp

            Filesize

            336KB

          • memory/740-39-0x000000004C2D0000-0x000000004C31E000-memory.dmp

            Filesize

            312KB

          • memory/740-41-0x000000004C2D0000-0x000000004C31E000-memory.dmp

            Filesize

            312KB

          • memory/740-79-0x000000004C2D0000-0x000000004C31E000-memory.dmp

            Filesize

            312KB

          • memory/740-77-0x000000004C2D0000-0x000000004C31E000-memory.dmp

            Filesize

            312KB

          • memory/740-75-0x000000004C2D0000-0x000000004C31E000-memory.dmp

            Filesize

            312KB

          • memory/740-71-0x000000004C2D0000-0x000000004C31E000-memory.dmp

            Filesize

            312KB

          • memory/740-69-0x000000004C2D0000-0x000000004C31E000-memory.dmp

            Filesize

            312KB

          • memory/740-67-0x000000004C2D0000-0x000000004C31E000-memory.dmp

            Filesize

            312KB

          • memory/740-65-0x000000004C2D0000-0x000000004C31E000-memory.dmp

            Filesize

            312KB

          • memory/740-63-0x000000004C2D0000-0x000000004C31E000-memory.dmp

            Filesize

            312KB

          • memory/740-61-0x000000004C2D0000-0x000000004C31E000-memory.dmp

            Filesize

            312KB

          • memory/740-57-0x000000004C2D0000-0x000000004C31E000-memory.dmp

            Filesize

            312KB

          • memory/740-55-0x000000004C2D0000-0x000000004C31E000-memory.dmp

            Filesize

            312KB

          • memory/740-54-0x000000004C2D0000-0x000000004C31E000-memory.dmp

            Filesize

            312KB

          • memory/740-51-0x000000004C2D0000-0x000000004C31E000-memory.dmp

            Filesize

            312KB

          • memory/740-49-0x000000004C2D0000-0x000000004C31E000-memory.dmp

            Filesize

            312KB

          • memory/740-47-0x000000004C2D0000-0x000000004C31E000-memory.dmp

            Filesize

            312KB

          • memory/740-45-0x000000004C2D0000-0x000000004C31E000-memory.dmp

            Filesize

            312KB

          • memory/740-43-0x000000004C2D0000-0x000000004C31E000-memory.dmp

            Filesize

            312KB

          • memory/740-37-0x000000004C2D0000-0x000000004C31E000-memory.dmp

            Filesize

            312KB

          • memory/740-35-0x000000004C2D0000-0x000000004C31E000-memory.dmp

            Filesize

            312KB

          • memory/740-33-0x000000004C2D0000-0x000000004C31E000-memory.dmp

            Filesize

            312KB

          • memory/740-31-0x000000004C2D0000-0x000000004C31E000-memory.dmp

            Filesize

            312KB

          • memory/740-29-0x000000004C2D0000-0x000000004C31E000-memory.dmp

            Filesize

            312KB

          • memory/740-27-0x000000004C2D0000-0x000000004C31E000-memory.dmp

            Filesize

            312KB

          • memory/740-25-0x000000004C2D0000-0x000000004C31E000-memory.dmp

            Filesize

            312KB

          • memory/740-73-0x000000004C2D0000-0x000000004C31E000-memory.dmp

            Filesize

            312KB

          • memory/740-59-0x000000004C2D0000-0x000000004C31E000-memory.dmp

            Filesize

            312KB

          • memory/740-23-0x000000004C2D0000-0x000000004C31E000-memory.dmp

            Filesize

            312KB

          • memory/740-21-0x000000004C2D0000-0x000000004C31E000-memory.dmp

            Filesize

            312KB

          • memory/740-20-0x000000004C2D0000-0x000000004C31E000-memory.dmp

            Filesize

            312KB

          • memory/740-1064-0x000000004CA40000-0x000000004CAA6000-memory.dmp

            Filesize

            408KB

          • memory/740-1065-0x0000000074F70000-0x0000000075720000-memory.dmp

            Filesize

            7.7MB

          • memory/740-1066-0x000000004DA70000-0x000000004DAC0000-memory.dmp

            Filesize

            320KB

          • memory/740-1067-0x000000004DAC0000-0x000000004DB5C000-memory.dmp

            Filesize

            624KB

          • memory/740-1068-0x000000004DB60000-0x000000004DBF2000-memory.dmp

            Filesize

            584KB

          • memory/740-1069-0x000000004DD90000-0x000000004DD9A000-memory.dmp

            Filesize

            40KB

          • memory/740-1072-0x0000000074F7E000-0x0000000074F7F000-memory.dmp

            Filesize

            4KB

          • memory/740-1073-0x0000000074F70000-0x0000000075720000-memory.dmp

            Filesize

            7.7MB

          • memory/1216-0-0x0000000000AD0000-0x0000000000AD1000-memory.dmp

            Filesize

            4KB

          • memory/1216-1-0x0000000000400000-0x00000000004E8000-memory.dmp

            Filesize

            928KB