Analysis

  • max time kernel
    60s
  • max time network
    127s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20230220-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20230220-enlocale:en-usos:windows10-2004-x64system
  • submitted
    02/06/2023, 16:24

General

  • Target
    03638199.exe
  • Size 804KB
  • Sample230602-twcgbacd22
  • SHA256 8235377c714eb9e58b2db6d39c4091d4b610296e8bfdfae466a8f286e655dabe
  • MD5 SHA1 SHA512 SSDEEP

Malware Config

Extracted

Family
  • agenttesla

Credentials

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 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 8 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\03638199.exe
    "C:\Users\Admin\AppData\Local\Temp\03638199.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:2868
    • C:\Users\Admin\AppData\Local\Temp\03638199.exe
      "C:\Users\Admin\AppData\Local\Temp\03638199.exe"
      2⤵
      • Accesses Microsoft Outlook profiles
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of SetWindowsHookEx
      • outlook_office_path
      • outlook_win_path
      PID:2160

Network

        MITRE ATT&CK Enterprise v6

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        03638199.exe.log

        • Path C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\03638199.exe.log
        • Size 1KB
        • SHA256 7667e538030e3f8ce2886e47a01af24cb0ea70528b1e821c5d8832c5076cb982
        • MD5 SHA1 SHA512

        memory/2160-140-0x0000000000400000-0x0000000000430000-memory.dmp

        memory/2160-147-0x00000000069B0000-0x0000000006B72000-memory.dmp

        memory/2160-146-0x0000000006790000-0x00000000067E0000-memory.dmp

        memory/2160-145-0x0000000005230000-0x0000000005240000-memory.dmp

        memory/2160-144-0x0000000005230000-0x0000000005240000-memory.dmp

        memory/2160-143-0x0000000005040000-0x00000000050A6000-memory.dmp

        memory/2868-136-0x0000000004F80000-0x0000000004F8A000-memory.dmp

        memory/2868-139-0x0000000006B50000-0x0000000006BEC000-memory.dmp

        memory/2868-138-0x0000000005020000-0x0000000005030000-memory.dmp

        memory/2868-137-0x0000000005020000-0x0000000005030000-memory.dmp

        memory/2868-133-0x0000000000440000-0x0000000000510000-memory.dmp

        memory/2868-135-0x0000000004ED0000-0x0000000004F62000-memory.dmp

        memory/2868-134-0x0000000005480000-0x0000000005A24000-memory.dmp