Analysis

  • max time kernel
    134s
  • max time network
    138s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240426-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240426-enlocale:en-usos:windows10-2004-x64system
  • submitted
    22/05/2024, 01:05

General

  • Target
    ASCD0001 INQ9829.......pdf.exe
  • Size 690KB
  • Sample240522-bfmy1aff4t
  • SHA256 60f8730d4f9a82bdecf943fe5225986638b26f3c1b1807db2308f4a741818f09
  • 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 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.

  • 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 11 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\ASCD0001 INQ9829.......pdf.exe
    "C:\Users\Admin\AppData\Local\Temp\ASCD0001 INQ9829.......pdf.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:996
    • C:\Users\Admin\AppData\Local\Temp\ASCD0001 INQ9829.......pdf.exe
      "C:\Users\Admin\AppData\Local\Temp\ASCD0001 INQ9829.......pdf.exe"
      2⤵
      • Accesses Microsoft Outlook profiles
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • outlook_office_path
      • outlook_win_path
      PID:1896

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        ASCD0001 INQ9829.......pdf.exe.log

        • Path C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\ASCD0001 INQ9829.......pdf.exe.log
        • Size 1KB
        • SHA256 7667e538030e3f8ce2886e47a01af24cb0ea70528b1e821c5d8832c5076cb982
        • MD5 SHA1 SHA512

        memory/996-10-0x0000000074B4E000-0x0000000074B4F000-memory.dmp

        memory/996-11-0x0000000074B40000-0x00000000752F0000-memory.dmp

        memory/996-3-0x0000000005810000-0x00000000058A2000-memory.dmp

        memory/996-0-0x0000000074B4E000-0x0000000074B4F000-memory.dmp

        memory/996-5-0x00000000058D0000-0x00000000058DA000-memory.dmp

        memory/996-6-0x0000000008530000-0x000000000854A000-memory.dmp

        memory/996-7-0x0000000006A60000-0x0000000006A70000-memory.dmp

        memory/996-8-0x0000000008550000-0x00000000085D4000-memory.dmp

        memory/996-2-0x0000000005EB0000-0x0000000006454000-memory.dmp

        memory/996-9-0x000000000ACB0000-0x000000000AD4C000-memory.dmp

        memory/996-4-0x0000000074B40000-0x00000000752F0000-memory.dmp

        memory/996-16-0x0000000074B40000-0x00000000752F0000-memory.dmp

        memory/996-1-0x0000000000D80000-0x0000000000E32000-memory.dmp

        memory/1896-15-0x0000000074B40000-0x00000000752F0000-memory.dmp

        memory/1896-12-0x0000000000400000-0x0000000000442000-memory.dmp

        memory/1896-17-0x00000000057A0000-0x0000000005806000-memory.dmp

        memory/1896-18-0x0000000074B40000-0x00000000752F0000-memory.dmp

        memory/1896-19-0x0000000006E60000-0x0000000006EB0000-memory.dmp

        memory/1896-20-0x0000000074B40000-0x00000000752F0000-memory.dmp