Analysis

  • max time kernel
    142s
  • max time network
    153s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20230220-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20230220-enlocale:en-usos:windows10-2004-x64system
  • submitted
    20/06/2023, 12:23

General

  • Target
    rProductSample.exe
  • Size 302KB
  • Sample230620-pkfx5sda8s
  • SHA256 72415d85437a9ce23c1b6e7379c4d68673f0fd4a4612877bb625db9b5dfd6785
  • MD5 SHA1 SHA512 SSDEEP

Malware Config

Signatures

  • AgentTesla

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

  • Loads dropped DLL 1 IoCs
  • 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
  • Adds Run key to start application 2 TTPs 1 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
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s).

  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious behavior: MapViewOfSection 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 4 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\rProductSample.exe
    "C:\Users\Admin\AppData\Local\Temp\rProductSample.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of SetThreadContext
    • Suspicious behavior: MapViewOfSection
    • Suspicious use of WriteProcessMemory
    PID:4136
    • C:\Users\Admin\AppData\Local\Temp\rProductSample.exe
      "C:\Users\Admin\AppData\Local\Temp\rProductSample.exe"
      2⤵
      • Accesses Microsoft Outlook profiles
      • Adds Run key to start application
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of SetWindowsHookEx
      • outlook_office_path
      • outlook_win_path
      PID:3456

Network

        MITRE ATT&CK Enterprise v6

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        jqrrkcu.dll

        • Path C:\Users\Admin\AppData\Local\Temp\nsk6ECE.tmp\jqrrkcu.dll
        • Size 86KB
        • SHA256 f2d1788f1c4aff80078cc05e5cec3cae6c91212838d077682e18fbec66cdc4e4
        • MD5 SHA1 SHA512 SSDEEP

        memory/3456-140-0x0000000000400000-0x0000000000442000-memory.dmp

        memory/3456-141-0x0000000000400000-0x0000000000442000-memory.dmp

        memory/3456-142-0x0000000000400000-0x0000000000442000-memory.dmp

        memory/3456-143-0x00000000049A0000-0x0000000004F44000-memory.dmp

        memory/3456-144-0x0000000000400000-0x0000000000442000-memory.dmp

        memory/3456-145-0x0000000004990000-0x00000000049A0000-memory.dmp

        memory/3456-146-0x0000000004990000-0x00000000049A0000-memory.dmp

        memory/3456-147-0x0000000004990000-0x00000000049A0000-memory.dmp

        memory/3456-148-0x0000000004990000-0x00000000049A0000-memory.dmp

        memory/3456-149-0x0000000004FB0000-0x0000000005016000-memory.dmp

        memory/3456-151-0x0000000004990000-0x00000000049A0000-memory.dmp

        memory/3456-152-0x0000000004990000-0x00000000049A0000-memory.dmp

        memory/3456-153-0x0000000004990000-0x00000000049A0000-memory.dmp

        memory/3456-154-0x0000000004990000-0x00000000049A0000-memory.dmp

        memory/3456-155-0x0000000005FD0000-0x0000000006020000-memory.dmp

        memory/3456-156-0x0000000006030000-0x00000000061F2000-memory.dmp

        memory/3456-163-0x0000000006230000-0x00000000062CC000-memory.dmp

        memory/3456-164-0x00000000062E0000-0x0000000006372000-memory.dmp

        memory/3456-165-0x0000000006400000-0x000000000640A000-memory.dmp