Analysis

  • max time kernel
    145s
  • max time network
    148s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20230220-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20230220-enlocale:en-usos:windows10-2004-x64system
  • submitted
    27/03/2023, 10:34

General

  • Target
    4519de9e3f5efd9400ddfdea287b5daf.exe
  • Size 795KB
  • Sample230327-ml6h3sda48
  • SHA256 6c8b93bdd0153dfe2c4ff9e4c758ec44f3e01fbb77cb54b51e7ed07efa734a44
  • 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
  • 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
  • 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\4519de9e3f5efd9400ddfdea287b5daf.exe
    "C:\Users\Admin\AppData\Local\Temp\4519de9e3f5efd9400ddfdea287b5daf.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:3344
    • C:\Users\Admin\AppData\Local\Temp\4519de9e3f5efd9400ddfdea287b5daf.exe
      "C:\Users\Admin\AppData\Local\Temp\4519de9e3f5efd9400ddfdea287b5daf.exe"
      2⤵
      • Accesses Microsoft Outlook profiles
      • Adds Run key to start application
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of SetWindowsHookEx
      • outlook_office_path
      • outlook_win_path
      PID:4832

Network

        MITRE ATT&CK Enterprise v6

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        4519de9e3f5efd9400ddfdea287b5daf.exe.log

        • Path C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\4519de9e3f5efd9400ddfdea287b5daf.exe.log
        • Size 1KB
        • SHA256 7667e538030e3f8ce2886e47a01af24cb0ea70528b1e821c5d8832c5076cb982
        • MD5 SHA1 SHA512

        memory/3344-139-0x0000000007020000-0x00000000070BC000-memory.dmp

        memory/3344-135-0x00000000053E0000-0x0000000005472000-memory.dmp

        memory/3344-136-0x00000000053B0000-0x00000000053BA000-memory.dmp

        memory/3344-137-0x0000000005560000-0x0000000005570000-memory.dmp

        memory/3344-138-0x0000000005560000-0x0000000005570000-memory.dmp

        memory/3344-133-0x0000000000930000-0x00000000009FC000-memory.dmp

        memory/3344-134-0x00000000058F0000-0x0000000005E94000-memory.dmp

        memory/4832-140-0x0000000000400000-0x0000000000430000-memory.dmp

        memory/4832-143-0x0000000005340000-0x00000000053A6000-memory.dmp

        memory/4832-144-0x00000000055A0000-0x00000000055B0000-memory.dmp

        memory/4832-147-0x0000000007020000-0x0000000007070000-memory.dmp

        memory/4832-148-0x0000000007360000-0x0000000007522000-memory.dmp

        memory/4832-149-0x00000000055A0000-0x00000000055B0000-memory.dmp