Analysis

  • max time kernel
    61s
  • max time network
    115s
  • platform
    windows7_x64
  • resource
    win7-20230220-en
  • resource tags

    arch:x64arch:x86image:win7-20230220-enlocale:en-usos:windows7-x64system
  • submitted
    15/03/2023, 08:26

General

  • Target
    0371dcc69b7805359ccadcce117e8b35.exe
  • Size 807KB
  • Sample230315-kbvbyscc82
  • SHA256 5632ae27980cf1407b52fe4a9da06e30cec16937a75971b4df6d875c14278c8d
  • MD5 SHA1 SHA512 SSDEEP

Malware Config

Extracted

Family
  • agenttesla

Credentials
  • Protocol

    ftp

  • Host

    ftp://ftp.valvulasthermovalve.cl

  • Port

    21

  • Password

    LILKOOLL14!!

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 use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 9 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\0371dcc69b7805359ccadcce117e8b35.exe
    "C:\Users\Admin\AppData\Local\Temp\0371dcc69b7805359ccadcce117e8b35.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:1188
    • C:\Users\Admin\AppData\Local\Temp\0371dcc69b7805359ccadcce117e8b35.exe
      "C:\Users\Admin\AppData\Local\Temp\0371dcc69b7805359ccadcce117e8b35.exe"
      2⤵
      • Accesses Microsoft Outlook profiles
      • Suspicious use of AdjustPrivilegeToken
      • outlook_office_path
      • outlook_win_path
      PID:560

Network

        MITRE ATT&CK Enterprise v6

        Replay Monitor

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        Downloads

        memory/560-66-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

        memory/560-67-0x0000000000400000-0x0000000000430000-memory.dmp

        memory/560-90-0x0000000004EB0000-0x0000000004EF0000-memory.dmp

        memory/560-72-0x0000000004EB0000-0x0000000004EF0000-memory.dmp

        memory/560-71-0x0000000000400000-0x0000000000430000-memory.dmp

        memory/560-69-0x0000000000400000-0x0000000000430000-memory.dmp

        memory/560-62-0x0000000000400000-0x0000000000430000-memory.dmp

        memory/560-65-0x0000000000400000-0x0000000000430000-memory.dmp

        memory/560-63-0x0000000000400000-0x0000000000430000-memory.dmp

        memory/560-64-0x0000000000400000-0x0000000000430000-memory.dmp

        memory/1188-55-0x0000000004F20000-0x0000000004F60000-memory.dmp

        memory/1188-61-0x0000000000CC0000-0x0000000000CF2000-memory.dmp

        memory/1188-54-0x0000000001340000-0x000000000140E000-memory.dmp

        memory/1188-60-0x0000000000BF0000-0x0000000000BF8000-memory.dmp

        memory/1188-59-0x0000000007E80000-0x0000000007F2A000-memory.dmp

        memory/1188-58-0x00000000006B0000-0x00000000006BC000-memory.dmp

        memory/1188-57-0x0000000004F20000-0x0000000004F60000-memory.dmp

        memory/1188-56-0x00000000006E0000-0x00000000006FE000-memory.dmp