Analysis

  • max time kernel
    119s
  • max time network
    123s
  • platform
    windows7_x64
  • resource
    win7-20240508-en
  • resource tags

    arch:x64arch:x86image:win7-20240508-enlocale:en-usos:windows7-x64system
  • submitted
    24/06/2024, 01:09

General

  • Target

    ce4d27f8271459cba8e5ee47c218a18ea818b38de6c42635decaed6c10e1c41d.exe

  • Size

    2.5MB

  • MD5

    de9b7b1f668a33d19d8058706ba6c16e

  • SHA1

    6f8d6b460e3cc74ecc97bf8eb73490c3498ff778

  • SHA256

    ce4d27f8271459cba8e5ee47c218a18ea818b38de6c42635decaed6c10e1c41d

  • SHA512

    5fc9d9d48aa29da2d0df0201dfe945a7f5354e00cf47204077c9b83da34ee1afb1b28ebcc73ddfc2823e76975a9844f5feeb334a56c5dec1d1d6d8eca3229427

  • SSDEEP

    12288:vt0KKLaVTXQFIsx2Aa+jjtRgvWNcE3wiDeR01S5XxWfMb0:F0KKLaVTAFI42AbjLzN13wik2+0

Malware Config

Extracted

Family

agenttesla

Credentials

Signatures

  • AgentTesla

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

  • UAC bypass 3 TTPs 1 IoCs
  • Looks for VirtualBox Guest Additions in registry 2 TTPs 1 IoCs
  • 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.

  • Looks for VMWare Tools registry key 2 TTPs 1 IoCs
  • Checks BIOS information in registry 2 TTPs 2 IoCs

    BIOS information is often read in order to detect sandboxing environments.

  • 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.

  • Adds Run key to start application 2 TTPs 1 IoCs
  • Checks whether UAC is enabled 1 TTPs 2 IoCs
  • Looks up external IP address via web service 1 IoCs

    Uses a legitimate IP lookup service to find the infected system's external IP.

  • Maps connected drives based on registry 3 TTPs 2 IoCs

    Disk information is often read in order to detect sandboxing environments.

  • Suspicious use of SetThreadContext 1 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s).

  • Suspicious behavior: EnumeratesProcesses 3 IoCs
  • Suspicious use of AdjustPrivilegeToken 3 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 18 IoCs
  • System policy modification 1 TTPs 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\ce4d27f8271459cba8e5ee47c218a18ea818b38de6c42635decaed6c10e1c41d.exe
    "C:\Users\Admin\AppData\Local\Temp\ce4d27f8271459cba8e5ee47c218a18ea818b38de6c42635decaed6c10e1c41d.exe"
    1⤵
    • UAC bypass
    • Looks for VirtualBox Guest Additions in registry
    • Looks for VMWare Tools registry key
    • Checks BIOS information in registry
    • Checks whether UAC is enabled
    • Maps connected drives based on registry
    • Suspicious use of SetThreadContext
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    • System policy modification
    PID:1964
    • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Local\Temp\ce4d27f8271459cba8e5ee47c218a18ea818b38de6c42635decaed6c10e1c41d.exe" -Force
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2820
    • C:\Windows\Microsoft.NET\Framework\v4.0.30319\regasm.exe
      "C:\Windows\Microsoft.NET\Framework\v4.0.30319\regasm.exe"
      2⤵
      • Adds Run key to start application
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of SetWindowsHookEx
      PID:2732
    • C:\Windows\system32\WerFault.exe
      C:\Windows\system32\WerFault.exe -u -p 1964 -s 980
      2⤵
        PID:2596

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • memory/1964-0-0x000007FEF60B3000-0x000007FEF60B4000-memory.dmp

      Filesize

      4KB

    • memory/1964-1-0x0000000001370000-0x000000000137A000-memory.dmp

      Filesize

      40KB

    • memory/1964-2-0x000007FEF60B0000-0x000007FEF6A9C000-memory.dmp

      Filesize

      9.9MB

    • memory/1964-3-0x000000001B0D0000-0x000000001B166000-memory.dmp

      Filesize

      600KB

    • memory/1964-24-0x000007FEF60B0000-0x000007FEF6A9C000-memory.dmp

      Filesize

      9.9MB

    • memory/1964-22-0x000007FEF60B3000-0x000007FEF60B4000-memory.dmp

      Filesize

      4KB

    • memory/2732-20-0x0000000000400000-0x0000000000444000-memory.dmp

      Filesize

      272KB

    • memory/2732-18-0x0000000000400000-0x0000000000444000-memory.dmp

      Filesize

      272KB

    • memory/2732-17-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

      Filesize

      4KB

    • memory/2732-15-0x0000000000400000-0x0000000000444000-memory.dmp

      Filesize

      272KB

    • memory/2732-13-0x0000000000400000-0x0000000000444000-memory.dmp

      Filesize

      272KB

    • memory/2732-9-0x0000000000400000-0x0000000000444000-memory.dmp

      Filesize

      272KB

    • memory/2732-11-0x0000000000400000-0x0000000000444000-memory.dmp

      Filesize

      272KB

    • memory/2732-21-0x0000000000400000-0x0000000000444000-memory.dmp

      Filesize

      272KB

    • memory/2820-19-0x0000000001E80000-0x0000000001E88000-memory.dmp

      Filesize

      32KB

    • memory/2820-8-0x000000001B580000-0x000000001B862000-memory.dmp

      Filesize

      2.9MB