Analysis

  • max time kernel
    51s
  • max time network
    53s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240508-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system
  • submitted
    12/06/2024, 01:54

General

  • Target
    4397c1263474e99e7969a2a3c1794fbdf01332889accb90f4b600b09947f4890.exe
  • Size 850KB
  • Sample240612-cbt27aybre
  • SHA256 4397c1263474e99e7969a2a3c1794fbdf01332889accb90f4b600b09947f4890
  • MD5 SHA1 SHA512 SSDEEP

Malware Config

Extracted

Family
  • agenttesla

Credentials
  • Protocol

    ftp

  • Host

    ftp://beirutrest.com

  • Port

    21

  • Password

    9yXQ39wz(uL+

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.

  • Looks up external IP address via web service 1 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 WriteProcessMemory 8 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\4397c1263474e99e7969a2a3c1794fbdf01332889accb90f4b600b09947f4890.exe
    "C:\Users\Admin\AppData\Local\Temp\4397c1263474e99e7969a2a3c1794fbdf01332889accb90f4b600b09947f4890.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:4204
    • C:\Users\Admin\AppData\Local\Temp\4397c1263474e99e7969a2a3c1794fbdf01332889accb90f4b600b09947f4890.exe
      "C:\Users\Admin\AppData\Local\Temp\4397c1263474e99e7969a2a3c1794fbdf01332889accb90f4b600b09947f4890.exe"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:3068

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        4397c1263474e99e7969a2a3c1794fbdf01332889accb90f4b600b09947f4890.exe.log

        • Path C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\4397c1263474e99e7969a2a3c1794fbdf01332889accb90f4b600b09947f4890.exe.log
        • Size 1KB
        • SHA256 7667e538030e3f8ce2886e47a01af24cb0ea70528b1e821c5d8832c5076cb982
        • MD5 SHA1 SHA512

        memory/3068-18-0x0000000074E40000-0x00000000755F0000-memory.dmp

        memory/3068-17-0x0000000006E90000-0x0000000006EE0000-memory.dmp

        memory/3068-16-0x0000000074E40000-0x00000000755F0000-memory.dmp

        memory/3068-15-0x0000000005540000-0x00000000055A6000-memory.dmp

        memory/3068-14-0x0000000074E40000-0x00000000755F0000-memory.dmp

        memory/3068-10-0x0000000000400000-0x0000000000440000-memory.dmp

        memory/4204-5-0x0000000074E40000-0x00000000755F0000-memory.dmp

        memory/4204-8-0x0000000008310000-0x0000000008392000-memory.dmp

        memory/4204-9-0x000000000AA70000-0x000000000AB0C000-memory.dmp

        memory/4204-7-0x00000000067D0000-0x00000000067E0000-memory.dmp

        memory/4204-6-0x00000000082F0000-0x000000000830A000-memory.dmp

        memory/4204-4-0x0000000005730000-0x000000000573A000-memory.dmp

        memory/4204-13-0x0000000074E40000-0x00000000755F0000-memory.dmp

        memory/4204-0-0x0000000074E4E000-0x0000000074E4F000-memory.dmp

        memory/4204-3-0x0000000005560000-0x00000000055F2000-memory.dmp

        memory/4204-2-0x0000000005A20000-0x0000000005FC4000-memory.dmp

        memory/4204-1-0x0000000000AA0000-0x0000000000B7C000-memory.dmp