Analysis

  • max time kernel
    159s
  • max time network
    154s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240226-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
  • submitted
    10/03/2024, 00:10

General

  • Target
    bd2914a8d6de2b498ec113f5ba8c58a2.exe
  • Size 1.1MB
  • Sample240310-af42vafc4y
  • SHA256 0d43797a02cc1da9b340b612bb521cdfd09bcd5802acba7a8e81378785216ee6
  • MD5 SHA1 SHA512 SSDEEP

Malware Config

Extracted

Family
  • agenttesla

Credentials
  • Protocol

    smtp

  • Host

    smtp.turkticaret.net

  • Port

    587

  • Password

    Ackr.2410

Signatures

  • AgentTesla

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

  • AgentTesla payload 1 IoCs
  • Checks computer location settings 2 TTPs 1 IoCs

    Looks up country code configured in the registry, likely geofence.

  • 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
  • Suspicious use of SetThreadContext 1 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Creates scheduled task(s) 1 TTPs 1 IoCs

    Schtasks is often used by malware for persistence or to perform post-infection execution.

  • Suspicious behavior: EnumeratesProcesses 3 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 11 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\bd2914a8d6de2b498ec113f5ba8c58a2.exe
    "C:\Users\Admin\AppData\Local\Temp\bd2914a8d6de2b498ec113f5ba8c58a2.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1976
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\SiwhDqDr" /XML "C:\Users\Admin\AppData\Local\Temp\tmp88E2.tmp"
      2⤵
      • Creates scheduled task(s)
      PID:1444
    • C:\Users\Admin\AppData\Local\Temp\bd2914a8d6de2b498ec113f5ba8c58a2.exe
      "C:\Users\Admin\AppData\Local\Temp\bd2914a8d6de2b498ec113f5ba8c58a2.exe"
      2⤵
      • Accesses Microsoft Outlook profiles
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of SetWindowsHookEx
      • outlook_office_path
      • outlook_win_path
      PID:1932

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        bd2914a8d6de2b498ec113f5ba8c58a2.exe.log

        • Path C:\Users\Admin\AppData\Local\Microsoft\CLR_v2.0_32\UsageLogs\bd2914a8d6de2b498ec113f5ba8c58a2.exe.log
        • Size 496B
        • SHA256 e248cef9500ed6e0c9f99d72a2a6a36955a5f0cfc0725748ef25a733cc8282f6
        • MD5 SHA1 SHA512

        tmp88E2.tmp

        • Path C:\Users\Admin\AppData\Local\Temp\tmp88E2.tmp
        • Size 1KB
        • SHA256 5af66d13f03ee14118d9f22f7386929c9c28e7c625bd87abbb787f7874204db5
        • MD5 SHA1 SHA512

        memory/1932-17-0x0000000001A00000-0x0000000001A10000-memory.dmp

        memory/1932-18-0x0000000074860000-0x0000000074E11000-memory.dmp

        memory/1932-23-0x0000000001A00000-0x0000000001A10000-memory.dmp

        memory/1932-22-0x0000000001A00000-0x0000000001A10000-memory.dmp

        memory/1932-21-0x0000000001A00000-0x0000000001A10000-memory.dmp

        memory/1932-20-0x0000000074860000-0x0000000074E11000-memory.dmp

        memory/1932-12-0x0000000000400000-0x000000000043C000-memory.dmp

        memory/1932-19-0x0000000001A00000-0x0000000001A10000-memory.dmp

        memory/1932-15-0x0000000074860000-0x0000000074E11000-memory.dmp

        memory/1976-2-0x0000000001600000-0x0000000001610000-memory.dmp

        memory/1976-0-0x0000000074860000-0x0000000074E11000-memory.dmp

        memory/1976-16-0x0000000074860000-0x0000000074E11000-memory.dmp

        memory/1976-1-0x0000000074860000-0x0000000074E11000-memory.dmp

        memory/1976-3-0x0000000001600000-0x0000000001610000-memory.dmp

        memory/1976-6-0x0000000001600000-0x0000000001610000-memory.dmp

        memory/1976-5-0x0000000001600000-0x0000000001610000-memory.dmp

        memory/1976-4-0x0000000074860000-0x0000000074E11000-memory.dmp