Analysis

  • max time kernel
    117s
  • max time network
    119s
  • platform
    windows7_x64
  • resource
    win7-20240221-en
  • resource tags

    arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
  • submitted
    21/05/2024, 01:53

General

  • Target

    bfd3502d2fa81b4e82c6d0f35da6ae508c5be2b83342cc564ede8e50b580f875.exe

  • Size

    855KB

  • MD5

    23603bfafc152b25980d9d2daf1a7eb7

  • SHA1

    ad240c8ff5e81a18f6c71f0392c8e1b0bf96bf87

  • SHA256

    bfd3502d2fa81b4e82c6d0f35da6ae508c5be2b83342cc564ede8e50b580f875

  • SHA512

    ff262a11a4d3ffdb1ae97f5f07b9e09a2b9deb9baa9aeaed52624e5dc1a5394a61aa20979ab7d95f0572f34f4e301e0dda7d4353f7088b8964b31059bd0a1cba

  • SSDEEP

    24576:GWtb3BEyS/eRwgblVA3LIRJPfSWUhh2l:VZBEnxIlVwcRp

Malware Config

Extracted

Family

agenttesla

Credentials

Signatures

  • AgentTesla

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

  • Command and Scripting Interpreter: PowerShell 1 TTPs 1 IoCs

    Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.

  • 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.

  • 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 5 IoCs
  • Suspicious use of AdjustPrivilegeToken 3 IoCs
  • Suspicious use of WriteProcessMemory 17 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\bfd3502d2fa81b4e82c6d0f35da6ae508c5be2b83342cc564ede8e50b580f875.exe
    "C:\Users\Admin\AppData\Local\Temp\bfd3502d2fa81b4e82c6d0f35da6ae508c5be2b83342cc564ede8e50b580f875.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2156
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\ZgyPhDuHCFbHKh.exe"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2680
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\ZgyPhDuHCFbHKh" /XML "C:\Users\Admin\AppData\Local\Temp\tmp57C1.tmp"
      2⤵
      • Creates scheduled task(s)
      PID:2536
    • C:\Users\Admin\AppData\Local\Temp\bfd3502d2fa81b4e82c6d0f35da6ae508c5be2b83342cc564ede8e50b580f875.exe
      "C:\Users\Admin\AppData\Local\Temp\bfd3502d2fa81b4e82c6d0f35da6ae508c5be2b83342cc564ede8e50b580f875.exe"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2984

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        • C:\Users\Admin\AppData\Local\Temp\tmp57C1.tmp

          Filesize

          1KB

          MD5

          8aa3a22cd602d9515d7751a3aecf02b1

          SHA1

          801f9f2a7136acc4cd2c6a797b7f8c802ed98133

          SHA256

          37193f7060a9ab106c97d26931393f7d0a8be34bdcdd0e804f60ab535cc5c9aa

          SHA512

          85f38b02f293ac7f27ab0d63f84b7c72b5d02e5baef2a34cb6b1aceb20305b1c334dab57526a1e06f1d83347a80c602c5880ba11fa398ed76b7a9ed8f8e067af

        • memory/2156-27-0x00000000743E0000-0x0000000074ACE000-memory.dmp

          Filesize

          6.9MB

        • memory/2156-1-0x0000000000880000-0x000000000095A000-memory.dmp

          Filesize

          872KB

        • memory/2156-2-0x00000000743E0000-0x0000000074ACE000-memory.dmp

          Filesize

          6.9MB

        • memory/2156-3-0x0000000000530000-0x0000000000552000-memory.dmp

          Filesize

          136KB

        • memory/2156-4-0x0000000000550000-0x000000000055C000-memory.dmp

          Filesize

          48KB

        • memory/2156-5-0x0000000000560000-0x0000000000570000-memory.dmp

          Filesize

          64KB

        • memory/2156-6-0x0000000004C60000-0x0000000004CE6000-memory.dmp

          Filesize

          536KB

        • memory/2156-0-0x00000000743EE000-0x00000000743EF000-memory.dmp

          Filesize

          4KB

        • memory/2984-12-0x0000000000400000-0x0000000000444000-memory.dmp

          Filesize

          272KB

        • memory/2984-26-0x0000000000400000-0x0000000000444000-memory.dmp

          Filesize

          272KB

        • memory/2984-22-0x0000000000400000-0x0000000000444000-memory.dmp

          Filesize

          272KB

        • memory/2984-21-0x0000000000400000-0x0000000000444000-memory.dmp

          Filesize

          272KB

        • memory/2984-20-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

          Filesize

          4KB

        • memory/2984-18-0x0000000000400000-0x0000000000444000-memory.dmp

          Filesize

          272KB

        • memory/2984-16-0x0000000000400000-0x0000000000444000-memory.dmp

          Filesize

          272KB

        • memory/2984-14-0x0000000000400000-0x0000000000444000-memory.dmp

          Filesize

          272KB