Analysis

  • max time kernel
    54s
  • max time network
    143s
  • platform
    windows7_x64
  • resource
    win7-20231020-en
  • resource tags

    arch:x64arch:x86image:win7-20231020-enlocale:en-usos:windows7-x64system
  • submitted
    07-12-2023 16:51

General

  • Target

    u1zBYqsipafStki.exe

  • Size

    848KB

  • MD5

    0d3f3677ea8d45a57d725d61c71c172b

  • SHA1

    be4ca1e7e6a23784efce031f83c0232141cd0718

  • SHA256

    7c57d141f4c57d4ab30efd69206dc0a236ed915b2dbc437a9305b860e66e8a3c

  • SHA512

    6b4fd4ac87b2d64881986dacf956a1aa3ec8e7cb351cc58d512e5b48c61a1ee5b2e69b264e4b8ec549211f5a29b35eb883e3e2cf79decd89467a07c069f36226

  • SSDEEP

    12288:MaqvKgABiOX57dhpovj+6xuXvQDX7xRRVHZUvKeUtfysEa7ueH5qTIx:2OX5ZhSrXiQDFRRoZU5dEapq2

Malware Config

Extracted

Family

agenttesla

C2

https://api.telegram.org/bot6488735902:AAFjq98r8SzTcc0BHWZQiLUk749fQ78ULos/

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.

  • Looks up external IP address via web service 1 IoCs

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

  • Suspicious use of SetThreadContext 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 20 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 17 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\u1zBYqsipafStki.exe
    "C:\Users\Admin\AppData\Local\Temp\u1zBYqsipafStki.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2344
    • C:\Users\Admin\AppData\Local\Temp\u1zBYqsipafStki.exe
      "C:\Users\Admin\AppData\Local\Temp\u1zBYqsipafStki.exe"
      2⤵
        PID:2532
      • C:\Users\Admin\AppData\Local\Temp\u1zBYqsipafStki.exe
        "C:\Users\Admin\AppData\Local\Temp\u1zBYqsipafStki.exe"
        2⤵
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        PID:2948
      • C:\Users\Admin\AppData\Local\Temp\u1zBYqsipafStki.exe
        "C:\Users\Admin\AppData\Local\Temp\u1zBYqsipafStki.exe"
        2⤵
          PID:2320

      Network

      MITRE ATT&CK Enterprise v15

      Replay Monitor

      Loading Replay Monitor...

      Downloads

      • memory/2344-0-0x0000000000E80000-0x0000000000F5A000-memory.dmp

        Filesize

        872KB

      • memory/2344-1-0x0000000074260000-0x000000007494E000-memory.dmp

        Filesize

        6.9MB

      • memory/2344-2-0x0000000000E30000-0x0000000000E70000-memory.dmp

        Filesize

        256KB

      • memory/2344-3-0x0000000000430000-0x000000000044A000-memory.dmp

        Filesize

        104KB

      • memory/2344-4-0x00000000004C0000-0x00000000004C8000-memory.dmp

        Filesize

        32KB

      • memory/2344-5-0x0000000000580000-0x000000000058A000-memory.dmp

        Filesize

        40KB

      • memory/2344-6-0x0000000005E50000-0x0000000005ECE000-memory.dmp

        Filesize

        504KB

      • memory/2344-7-0x0000000074260000-0x000000007494E000-memory.dmp

        Filesize

        6.9MB

      • memory/2344-8-0x0000000000E30000-0x0000000000E70000-memory.dmp

        Filesize

        256KB

      • memory/2344-24-0x0000000074260000-0x000000007494E000-memory.dmp

        Filesize

        6.9MB

      • memory/2948-21-0x0000000000400000-0x0000000000444000-memory.dmp

        Filesize

        272KB

      • memory/2948-23-0x0000000000400000-0x0000000000444000-memory.dmp

        Filesize

        272KB

      • memory/2948-26-0x0000000004870000-0x00000000048B0000-memory.dmp

        Filesize

        256KB

      • memory/2948-25-0x0000000074260000-0x000000007494E000-memory.dmp

        Filesize

        6.9MB

      • memory/2948-9-0x0000000000400000-0x0000000000444000-memory.dmp

        Filesize

        272KB

      • memory/2948-19-0x0000000000400000-0x0000000000444000-memory.dmp

        Filesize

        272KB

      • memory/2948-17-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

        Filesize

        4KB

      • memory/2948-15-0x0000000000400000-0x0000000000444000-memory.dmp

        Filesize

        272KB

      • memory/2948-13-0x0000000000400000-0x0000000000444000-memory.dmp

        Filesize

        272KB

      • memory/2948-11-0x0000000000400000-0x0000000000444000-memory.dmp

        Filesize

        272KB

      • memory/2948-27-0x0000000074260000-0x000000007494E000-memory.dmp

        Filesize

        6.9MB

      • memory/2948-28-0x0000000004870000-0x00000000048B0000-memory.dmp

        Filesize

        256KB