Analysis

  • max time kernel
    136s
  • max time network
    139s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20230221-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20230221-enlocale:en-usos:windows10-2004-x64system
  • submitted
    23/02/2023, 14:33

General

  • Target
    PI.exe
  • Size 750KB
  • Sample230223-rwvlsagb52
  • SHA256 d3cde2174f9799d957210cd054bee35f092e5480bb7019ca10e7b7f5abb116bf
  • MD5 SHA1 SHA512 SSDEEP

Malware Config

Extracted

Family
  • agenttesla

C2
  • https://api.telegram.org/bot2134979594:AAFk4QkrlHlt2a-q-EhIoHZBbzxSH0QxiBI/

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.

  • Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs
  • 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 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 8 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\PI.exe
    "C:\Users\Admin\AppData\Local\Temp\PI.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:4888
    • C:\Users\Admin\AppData\Local\Temp\PI.exe
      "{path}"
      2⤵
      • Accesses Microsoft Outlook profiles
      • Suspicious use of AdjustPrivilegeToken
      • outlook_office_path
      • outlook_win_path
      PID:444

Network

        MITRE ATT&CK Enterprise v6

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        PI.exe.log

        • Path C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\PI.exe.log
        • Size 1KB
        • SHA256 c18db6aecad2436da4a63ff26af4e3a337cca48f01c21b8db494fe5ccc60e553
        • MD5 SHA1 SHA512

        memory/444-141-0x0000000000400000-0x0000000000430000-memory.dmp

        memory/444-148-0x0000000005060000-0x0000000005070000-memory.dmp

        memory/444-147-0x0000000006F00000-0x00000000070C2000-memory.dmp

        memory/444-146-0x0000000006CE0000-0x0000000006D30000-memory.dmp

        memory/444-145-0x0000000005060000-0x0000000005070000-memory.dmp

        memory/444-144-0x00000000050C0000-0x0000000005126000-memory.dmp

        memory/4888-136-0x0000000005250000-0x00000000052E2000-memory.dmp

        memory/4888-140-0x0000000005150000-0x0000000005160000-memory.dmp

        memory/4888-139-0x0000000005440000-0x0000000005496000-memory.dmp

        memory/4888-138-0x0000000005190000-0x000000000519A000-memory.dmp

        memory/4888-137-0x0000000005150000-0x0000000005160000-memory.dmp

        memory/4888-133-0x0000000000660000-0x0000000000722000-memory.dmp

        memory/4888-135-0x0000000005760000-0x0000000005D04000-memory.dmp

        memory/4888-134-0x0000000005080000-0x000000000511C000-memory.dmp