Analysis

  • max time kernel
    149s
  • max time network
    150s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240611-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240611-enlocale:en-usos:windows10-2004-x64system
  • submitted
    12/06/2024, 01:56

General

  • Target

    a2692baba867417cdb7c2a5b1c1ab8eec75a0359962872fdd218f844e836f265.exe

  • Size

    1.6MB

  • MD5

    2fa23a2e93b10ae07013e24692f35b6d

  • SHA1

    9481be2f68a244f9825295fda01c5f1fce66648d

  • SHA256

    a2692baba867417cdb7c2a5b1c1ab8eec75a0359962872fdd218f844e836f265

  • SHA512

    21ecbe170b529c7373d9eda6750eaa7c7a578d995e75f54c4466ae2132dae0ec5f2d79e4fefceb05016b965031d2fdf568da604dfb367a886face4af10c5bacd

  • SSDEEP

    12288:HEzZEAmD9/RR3biUuyjpgebm6YRAbAZRwox15bGz5XWCMmsI8txwFF71a0:HEzZ6/RR3b4spUZRJ15beWCMmywPp

Malware Config

Extracted

Family

agenttesla

Credentials

Signatures

  • AgentTesla

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

  • Detect packed .NET executables. Mostly AgentTeslaV4. 1 IoCs
  • Detects binaries (Windows and macOS) referencing many web browsers. Observed in information stealers. 1 IoCs
  • Detects executables packed with or use KoiVM 1 IoCs
  • Detects executables referencing Windows vault credential objects. Observed in infostealers 1 IoCs
  • Detects executables referencing many confidential data stores found in browsers, mail clients, cryptocurreny wallets, etc. Observed in information stealers 1 IoCs
  • Detects executables referencing many email and collaboration clients. Observed in information stealers 1 IoCs
  • Detects executables referencing many file transfer clients. Observed in information stealers 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.

  • Looks up external IP address via web service 2 IoCs

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

  • Suspicious use of SetThreadContext 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 11 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\a2692baba867417cdb7c2a5b1c1ab8eec75a0359962872fdd218f844e836f265.exe
    "C:\Users\Admin\AppData\Local\Temp\a2692baba867417cdb7c2a5b1c1ab8eec75a0359962872fdd218f844e836f265.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2764
    • C:\Windows\Microsoft.NET\Framework\v4.0.30319\regasm.exe
      "C:\Windows\Microsoft.NET\Framework\v4.0.30319\regasm.exe"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2412
    • C:\Windows\Microsoft.NET\Framework\v4.0.30319\regasm.exe
      "C:\Windows\Microsoft.NET\Framework\v4.0.30319\regasm.exe"
      2⤵
        PID:4620

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • memory/2412-10-0x0000000006C10000-0x0000000006C60000-memory.dmp

      Filesize

      320KB

    • memory/2412-14-0x0000000074110000-0x00000000748C0000-memory.dmp

      Filesize

      7.7MB

    • memory/2412-13-0x000000007411E000-0x000000007411F000-memory.dmp

      Filesize

      4KB

    • memory/2412-12-0x0000000006C80000-0x0000000006C8A000-memory.dmp

      Filesize

      40KB

    • memory/2412-4-0x0000000000400000-0x0000000000440000-memory.dmp

      Filesize

      256KB

    • memory/2412-5-0x000000007411E000-0x000000007411F000-memory.dmp

      Filesize

      4KB

    • memory/2412-6-0x0000000005E50000-0x00000000063F4000-memory.dmp

      Filesize

      5.6MB

    • memory/2412-7-0x0000000005910000-0x0000000005976000-memory.dmp

      Filesize

      408KB

    • memory/2412-8-0x0000000074110000-0x00000000748C0000-memory.dmp

      Filesize

      7.7MB

    • memory/2412-11-0x0000000006D00000-0x0000000006D92000-memory.dmp

      Filesize

      584KB

    • memory/2764-3-0x0000017CC3C40000-0x0000017CC3CD4000-memory.dmp

      Filesize

      592KB

    • memory/2764-9-0x00007FF94A5B0000-0x00007FF94B071000-memory.dmp

      Filesize

      10.8MB

    • memory/2764-1-0x0000017CA82A0000-0x0000017CA82BE000-memory.dmp

      Filesize

      120KB

    • memory/2764-2-0x00007FF94A5B0000-0x00007FF94B071000-memory.dmp

      Filesize

      10.8MB

    • memory/2764-0-0x00007FF94A5B3000-0x00007FF94A5B5000-memory.dmp

      Filesize

      8KB