Analysis

  • max time kernel
    120s
  • max time network
    124s
  • platform
    windows7_x64
  • resource
    win7-20240221-en
  • resource tags

    arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
  • submitted
    17/04/2024, 02:20

General

  • Target

    e1a7994ddfd57c0e0e5640720bab427afa0d0ca11f5b09d50b4fe8c9d030c726.exe

  • Size

    346KB

  • MD5

    d6ef5b4c4627dc06ababa7f1276edc79

  • SHA1

    ad9e36b336501512587f2796b602c133bb4dde3c

  • SHA256

    e1a7994ddfd57c0e0e5640720bab427afa0d0ca11f5b09d50b4fe8c9d030c726

  • SHA512

    3edd84fc850f375689ad16ed35db1c464d6658071ee1973f650382c745219d008198e0e94dc60871098f96ce9935b21979381eb789e88def3f6295165131c48d

  • SSDEEP

    6144:nwdiUkUG5/Ob/HfQglA3+6fQ2pqlI9B7ReR7BDQ9TxK/yTf6qe1CzW8:8HkUG5/OjblY+oFql6B7RUQ9dK/yTf

Malware Config

Extracted

Family

agenttesla

Credentials

Signatures

  • AgentTesla

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

  • Detect packed .NET executables. Mostly AgentTeslaV4. 5 IoCs
  • Detects binaries (Windows and macOS) referencing many web browsers. Observed in information stealers. 5 IoCs
  • Detects executables referencing Windows vault credential objects. Observed in infostealers 5 IoCs
  • Detects executables referencing many confidential data stores found in browsers, mail clients, cryptocurreny wallets, etc. Observed in information stealers 5 IoCs
  • Detects executables referencing many email and collaboration clients. Observed in information stealers 5 IoCs
  • Detects executables referencing many file transfer clients. Observed in information stealers 5 IoCs
  • 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 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 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 12 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\e1a7994ddfd57c0e0e5640720bab427afa0d0ca11f5b09d50b4fe8c9d030c726.exe
    "C:\Users\Admin\AppData\Local\Temp\e1a7994ddfd57c0e0e5640720bab427afa0d0ca11f5b09d50b4fe8c9d030c726.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:2904
    • C:\Users\Admin\AppData\Local\Temp\e1a7994ddfd57c0e0e5640720bab427afa0d0ca11f5b09d50b4fe8c9d030c726.exe
      "C:\Users\Admin\AppData\Local\Temp\e1a7994ddfd57c0e0e5640720bab427afa0d0ca11f5b09d50b4fe8c9d030c726.exe"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of SetWindowsHookEx
      PID:2552

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        • memory/2552-8-0x0000000000400000-0x0000000000440000-memory.dmp

          Filesize

          256KB

        • memory/2552-19-0x0000000000400000-0x0000000000440000-memory.dmp

          Filesize

          256KB

        • memory/2552-21-0x00000000742C0000-0x00000000749AE000-memory.dmp

          Filesize

          6.9MB

        • memory/2552-3-0x0000000000400000-0x0000000000440000-memory.dmp

          Filesize

          256KB

        • memory/2552-6-0x0000000000400000-0x0000000000440000-memory.dmp

          Filesize

          256KB

        • memory/2552-10-0x0000000000400000-0x0000000000440000-memory.dmp

          Filesize

          256KB

        • memory/2552-20-0x00000000742C0000-0x00000000749AE000-memory.dmp

          Filesize

          6.9MB

        • memory/2552-12-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

          Filesize

          4KB

        • memory/2552-16-0x0000000000400000-0x0000000000440000-memory.dmp

          Filesize

          256KB

        • memory/2552-14-0x0000000000400000-0x0000000000440000-memory.dmp

          Filesize

          256KB

        • memory/2904-0-0x0000000001060000-0x00000000010BC000-memory.dmp

          Filesize

          368KB

        • memory/2904-17-0x0000000074340000-0x0000000074A2E000-memory.dmp

          Filesize

          6.9MB

        • memory/2904-1-0x0000000074340000-0x0000000074A2E000-memory.dmp

          Filesize

          6.9MB

        • memory/2904-5-0x0000000000390000-0x0000000000391000-memory.dmp

          Filesize

          4KB

        • memory/2904-2-0x0000000000650000-0x0000000000690000-memory.dmp

          Filesize

          256KB