Windows 7 deprecation

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Analysis

  • max time kernel
    150s
  • max time network
    138s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
  • submitted
    02/01/2025, 10:20

General

  • Target

    Setup_Update.zip

  • Size

    346KB

  • MD5

    eb751de314ba1859e4fa6ace8ac7bc51

  • SHA1

    c47e21d1db58017a96811bf73d96933f0bafb0ce

  • SHA256

    ea98c9bf854db4937cdd2f7430d21d72169cb3a5f676ffc41e71659b250438d2

  • SHA512

    c8b7547b90498d20790ab941642b8e128e75ea9585c7dd749805e597cd214720d23e5d4761b8fbea058bc28a5343c2dc123e9a251da2ea72cc7584f6648713ca

  • SSDEEP

    6144:jnVs5WDMq+8Z+hn5dXsPx9+HCwIsKDQeWVIbZhholaE4bX:7yMDMq+8Zonv8Z98QpeGZXola1bX

Malware Config

Signatures

  • Modifies Windows Firewall 2 TTPs 1 IoCs
  • Drops startup file 2 IoCs
  • Executes dropped EXE 3 IoCs
  • Loads dropped DLL 1 IoCs
  • Adds Run key to start application 2 TTPs 2 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Event Triggered Execution: Netsh Helper DLL 1 TTPs 3 IoCs

    Netsh.exe (also referred to as Netshell) is a command-line scripting utility used to interact with the network configuration of a system.

  • System Location Discovery: System Language Discovery 1 TTPs 4 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 33 IoCs
  • Suspicious use of FindShellTrayWindow 3 IoCs
  • Suspicious use of WriteProcessMemory 22 IoCs

Processes

  • C:\Program Files\7-Zip\7zFM.exe
    "C:\Program Files\7-Zip\7zFM.exe" "C:\Users\Admin\AppData\Local\Temp\Setup_Update.zip"
    1⤵
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious behavior: GetForegroundWindowSpam
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of FindShellTrayWindow
    • Suspicious use of WriteProcessMemory
    PID:2272
    • C:\Users\Admin\AppData\Local\Temp\7zO0E8FB537\SetupUpdate.exe
      "C:\Users\Admin\AppData\Local\Temp\7zO0E8FB537\SetupUpdate.exe"
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:2020
      • C:\Users\Admin\AppData\Local\Temp\Robloxxx.exe
        "C:\Users\Admin\AppData\Local\Temp\Robloxxx.exe"
        3⤵
        • Drops startup file
        • Executes dropped EXE
        • Adds Run key to start application
        • System Location Discovery: System Language Discovery
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious behavior: GetForegroundWindowSpam
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of WriteProcessMemory
        PID:2664
        • C:\Windows\SysWOW64\netsh.exe
          netsh firewall add allowedprogram "C:\Users\Admin\AppData\Local\Temp\Robloxxx.exe" "Robloxxx.exe" ENABLE
          4⤵
          • Modifies Windows Firewall
          • Event Triggered Execution: Netsh Helper DLL
          • System Location Discovery: System Language Discovery
          PID:2780
    • C:\Users\Admin\AppData\Local\Temp\7zO0E89AE77\SetupUpdate.exe
      "C:\Users\Admin\AppData\Local\Temp\7zO0E89AE77\SetupUpdate.exe"
      2⤵
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      PID:2700

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\7zO0E8FB537\SetupUpdate.exe

    Filesize

    37KB

    MD5

    4389854ab6bd814b908dbe1c68e23845

    SHA1

    a4f2e5c7b686105c6d9100b71fbd6b028cf530d9

    SHA256

    a49aca0e07fbf1c5f485c12ba3b49c50a843a739c891e2c91d150764599ab6c3

    SHA512

    aa4403e28a0001d9c259f8ce4b3e4f2ed9649fc58fd8a2f1ec12141a819b9751b5c012f06b5caad8f6656ae06224b1b134e31932f8e3ce2c4c0fd387028384e1