Analysis

  • max time kernel
    118s
  • max time network
    96s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    11/11/2024, 12:18

General

  • Target
    a7dd67bf3c65fbf612bb95a250490e1b6b022cb96b3dcce7786b704e04e6e923N.exe
  • Size 88KB
  • Sample241111-pgw5ysykcv
  • SHA256 7c44fa313d6827e230fead65a9b32e8c29fa60e6e6006f10d607ccc5750e5f10
  • MD5 SHA1 SHA512 SSDEEP

Malware Config

Signatures

  • Checks computer location settings 2 TTPs 2 IoCs

    Looks up country code configured in the registry, likely geofence.

  • Executes dropped EXE 4 IoCs
  • Adds Run key to start application 2 TTPs 1 IoCs
  • Suspicious use of SetThreadContext 4 IoCs
  • UPX packed file 5 IoCs

    Detects executables packed with UPX/modified UPX open source packer.

  • Enumerates physical storage devices 1 TTPs

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

  • System Location Discovery: System Language Discovery 1 TTPs 8 IoCs

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

  • Suspicious use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of SetWindowsHookEx 4 IoCs
  • Suspicious use of WriteProcessMemory 39 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\a7dd67bf3c65fbf612bb95a250490e1b6b022cb96b3dcce7786b704e04e6e923N.exe
    "C:\Users\Admin\AppData\Local\Temp\a7dd67bf3c65fbf612bb95a250490e1b6b022cb96b3dcce7786b704e04e6e923N.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:3640
    • C:\Users\Admin\AppData\Local\Temp\a7dd67bf3c65fbf612bb95a250490e1b6b022cb96b3dcce7786b704e04e6e923N.exe
      "C:\Users\Admin\AppData\Local\Temp\a7dd67bf3c65fbf612bb95a250490e1b6b022cb96b3dcce7786b704e04e6e923N.exe"
      2⤵
      • Checks computer location settings
      • System Location Discovery: System Language Discovery
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:1944
      • C:\Windows\SysWOW64\cmd.exe
        C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\LKXEO.bat" "
        3⤵
        • System Location Discovery: System Language Discovery
        • Suspicious use of WriteProcessMemory
        PID:2332
        • C:\Windows\SysWOW64\reg.exe
          REG ADD "HKCU\Software\Microsoft\Windows\CurrentVersion\Run" /v "Video Driver" /t REG_SZ /d "C:\Users\Admin\AppData\Roaming\config\explorer.exe" /f
          4⤵
          • Adds Run key to start application
          • System Location Discovery: System Language Discovery
          PID:3924
      • C:\Users\Admin\AppData\Roaming\config\explorer.exe
        "C:\Users\Admin\AppData\Roaming\config\explorer.exe"
        3⤵
        • Executes dropped EXE
        • Suspicious use of SetThreadContext
        • System Location Discovery: System Language Discovery
        • Suspicious use of SetWindowsHookEx
        • Suspicious use of WriteProcessMemory
        PID:3612
        • C:\Users\Admin\AppData\Roaming\config\explorer.exe
          "C:\Users\Admin\AppData\Roaming\config\explorer.exe"
          4⤵
          • Executes dropped EXE
          • System Location Discovery: System Language Discovery
          • Suspicious use of AdjustPrivilegeToken
          • Suspicious use of SetWindowsHookEx
          PID:1620
        • C:\Users\Admin\AppData\Roaming\config\explorer.exe
          "C:\Users\Admin\AppData\Roaming\config\explorer.exe"
          4⤵
          • Executes dropped EXE
          • Suspicious use of SetThreadContext
          • System Location Discovery: System Language Discovery
          • Suspicious use of WriteProcessMemory
          PID:1456
          • C:\Users\Admin\AppData\Roaming\config\explorer.exe
            "C:\Users\Admin\AppData\Roaming\config\explorer.exe"
            5⤵
            • Checks computer location settings
            • Executes dropped EXE
            • System Location Discovery: System Language Discovery
            PID:1352

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

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        Downloads

        cxz.exe

        • Path C:\ProgramData\cxz.exe
        • Size 294B
        • SHA256 545f7f68aed5dd7be2954f51bb4fa32df2f69428915a91ccdae6e9918fc086f5
        • MD5 SHA1 SHA512

        LKXEO.txt

        • Path C:\Users\Admin\AppData\Local\Temp\LKXEO.txt
        • Size 149B
        • SHA256 7f0a5917b5aca9c5beb153aad0ef95bf0aeafb83768da5b086c3f029ba42d7c8
        • MD5 SHA1 SHA512

        explorer.exe

        • Path C:\Users\Admin\AppData\Roaming\config\explorer.exe
        • Size 88KB
        • SHA256 2d353036bd4d836ce4bb4ca1feef0878c2c456d43083eebb235a9e5ae151bac4
        • MD5 SHA1 SHA512 SSDEEP

        memory/1352-90-0x0000000000400000-0x0000000000404000-memory.dmp

        memory/1352-68-0x0000000000400000-0x0000000000404000-memory.dmp

        memory/1352-63-0x0000000000400000-0x0000000000404000-memory.dmp

        memory/1456-65-0x0000000000400000-0x0000000000403000-memory.dmp

        memory/1456-58-0x0000000000400000-0x0000000000403000-memory.dmp

        memory/1456-56-0x0000000000400000-0x0000000000403000-memory.dmp

        memory/1456-52-0x0000000000400000-0x0000000000403000-memory.dmp

        memory/1620-92-0x0000000000400000-0x000000000040B000-memory.dmp

        memory/1944-18-0x0000000000400000-0x000000000040B000-memory.dmp

        memory/1944-16-0x0000000000400000-0x000000000040B000-memory.dmp

        memory/1944-62-0x0000000000400000-0x000000000040B000-memory.dmp

        memory/1944-14-0x0000000000400000-0x000000000040B000-memory.dmp

        memory/3612-44-0x0000000000400000-0x0000000000416000-memory.dmp

        memory/3612-59-0x0000000000400000-0x0000000000416000-memory.dmp

        memory/3612-46-0x0000000000400000-0x0000000000416000-memory.dmp

        memory/3612-45-0x0000000000400000-0x0000000000416000-memory.dmp

        memory/3640-9-0x0000000002AB0000-0x0000000002AB1000-memory.dmp

        memory/3640-10-0x0000000002AC0000-0x0000000002AC1000-memory.dmp

        memory/3640-11-0x0000000002AD0000-0x0000000002AD1000-memory.dmp

        memory/3640-12-0x0000000002210000-0x0000000002211000-memory.dmp

        memory/3640-8-0x0000000002A90000-0x0000000002A91000-memory.dmp

        memory/3640-5-0x00000000021C0000-0x00000000021C1000-memory.dmp

        memory/3640-13-0x0000000002AE0000-0x0000000002AE1000-memory.dmp

        memory/3640-2-0x0000000002180000-0x0000000002181000-memory.dmp

        memory/3640-3-0x0000000002190000-0x0000000002191000-memory.dmp

        memory/3640-4-0x00000000021B0000-0x00000000021B1000-memory.dmp

        memory/3640-7-0x00000000021E0000-0x00000000021E1000-memory.dmp

        memory/3640-6-0x00000000021D0000-0x00000000021D1000-memory.dmp