Analysis

  • max time kernel
    120s
  • max time network
    122s
  • platform
    windows7_x64
  • resource
    win7-20231129-en
  • resource tags

    arch:x64arch:x86image:win7-20231129-enlocale:en-usos:windows7-x64system
  • submitted
    11-12-2023 13:28

General

  • Target

    iHZsM0uymI3Vg6u.exe

  • Size

    733KB

  • MD5

    3c0248f8ec601644dcc315613c8687d2

  • SHA1

    7074e7794171f6273d26b889e958ca9904d90388

  • SHA256

    7e843c9470e591d69b382463986e433872664cb0f39bc232af8a157a6d75594c

  • SHA512

    75c73a851db5da0a9e9fcc340444302518f0a6043a0450c73170abff83db7fff45895e91f5fd24f6b50d21eaeea44570a68f61d252a6c935ee63e95a3aa7f1de

  • SSDEEP

    12288:SF5nF8ME6jD/mRRPuAeuBMH4koN3l0X9bKAcHgovMtQBHaVzXi5iK:SFPtD/mRRPuAeuWYkO3l0X9KAno0uHaU

Malware Config

Extracted

Family

agenttesla

C2

https://api.telegram.org/bot5612303943:AAFKYGy6vbiiDfKGcrus6Bdd9XppRu5OBPQ/

Signatures

  • AgentTesla

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

  • 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
  • Suspicious behavior: EnumeratesProcesses 4 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 17 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\iHZsM0uymI3Vg6u.exe
    "C:\Users\Admin\AppData\Local\Temp\iHZsM0uymI3Vg6u.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2324
    • C:\Users\Admin\AppData\Local\Temp\iHZsM0uymI3Vg6u.exe
      "C:\Users\Admin\AppData\Local\Temp\iHZsM0uymI3Vg6u.exe"
      2⤵
        PID:2540
      • C:\Users\Admin\AppData\Local\Temp\iHZsM0uymI3Vg6u.exe
        "C:\Users\Admin\AppData\Local\Temp\iHZsM0uymI3Vg6u.exe"
        2⤵
          PID:1128
        • C:\Users\Admin\AppData\Local\Temp\iHZsM0uymI3Vg6u.exe
          "C:\Users\Admin\AppData\Local\Temp\iHZsM0uymI3Vg6u.exe"
          2⤵
          • Adds Run key to start application
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          • Suspicious use of SetWindowsHookEx
          PID:2984

      Network

      MITRE ATT&CK Enterprise v15

      Replay Monitor

      Loading Replay Monitor...

      Downloads

      • memory/2324-1-0x0000000073FD0000-0x00000000746BE000-memory.dmp

        Filesize

        6.9MB

      • memory/2324-0-0x0000000000870000-0x000000000092E000-memory.dmp

        Filesize

        760KB

      • memory/2324-2-0x0000000004C10000-0x0000000004C50000-memory.dmp

        Filesize

        256KB

      • memory/2324-3-0x0000000000440000-0x0000000000458000-memory.dmp

        Filesize

        96KB

      • memory/2324-4-0x0000000000460000-0x0000000000468000-memory.dmp

        Filesize

        32KB

      • memory/2324-5-0x0000000000470000-0x000000000047A000-memory.dmp

        Filesize

        40KB

      • memory/2324-6-0x0000000005C70000-0x0000000005CEE000-memory.dmp

        Filesize

        504KB

      • memory/2324-21-0x0000000073FD0000-0x00000000746BE000-memory.dmp

        Filesize

        6.9MB

      • memory/2984-8-0x0000000000400000-0x0000000000444000-memory.dmp

        Filesize

        272KB

      • memory/2984-9-0x0000000000400000-0x0000000000444000-memory.dmp

        Filesize

        272KB

      • memory/2984-11-0x0000000000400000-0x0000000000444000-memory.dmp

        Filesize

        272KB

      • memory/2984-13-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

        Filesize

        4KB

      • memory/2984-17-0x0000000000400000-0x0000000000444000-memory.dmp

        Filesize

        272KB

      • memory/2984-15-0x0000000000400000-0x0000000000444000-memory.dmp

        Filesize

        272KB

      • memory/2984-19-0x0000000000400000-0x0000000000444000-memory.dmp

        Filesize

        272KB

      • memory/2984-22-0x00000000049F0000-0x0000000004A30000-memory.dmp

        Filesize

        256KB

      • memory/2984-7-0x0000000000400000-0x0000000000444000-memory.dmp

        Filesize

        272KB

      • memory/2984-20-0x0000000073FD0000-0x00000000746BE000-memory.dmp

        Filesize

        6.9MB

      • memory/2984-24-0x0000000073FD0000-0x00000000746BE000-memory.dmp

        Filesize

        6.9MB