Analysis

  • max time kernel
    96s
  • max time network
    112s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    23/01/2025, 23:58

General

  • Target
    6121035a4467d1f21ec279d164e2ea02ea87cbf74aa5b91459b9ed3ec3eee1b1.exe
  • Size 1.5MB
  • Sample250123-31hcss1nhn
  • SHA256 6121035a4467d1f21ec279d164e2ea02ea87cbf74aa5b91459b9ed3ec3eee1b1
  • MD5 SHA1 SHA512 SSDEEP

Malware Config

Signatures

  • Ramnit

    Ramnit is a versatile family that holds viruses, worms, and Trojans.

  • Ramnit family
  • Executes dropped EXE 2 IoCs
  • Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs
  • UPX packed file 5 IoCs

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

  • Drops file in Program Files directory 3 IoCs
  • 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.

  • Modifies Internet Explorer settings 1 TTPs 26 IoCs
  • Suspicious behavior: EnumeratesProcesses 8 IoCs
  • Suspicious use of FindShellTrayWindow 1 IoCs
  • Suspicious use of SetWindowsHookEx 7 IoCs
  • Suspicious use of WriteProcessMemory 11 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\6121035a4467d1f21ec279d164e2ea02ea87cbf74aa5b91459b9ed3ec3eee1b1.exe
    "C:\Users\Admin\AppData\Local\Temp\6121035a4467d1f21ec279d164e2ea02ea87cbf74aa5b91459b9ed3ec3eee1b1.exe"
    1⤵
    • Suspicious use of NtSetInformationThreadHideFromDebugger
    • System Location Discovery: System Language Discovery
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:4816
    • C:\Users\Admin\AppData\Local\Temp\6121035a4467d1f21ec279d164e2ea02ea87cbf74aa5b91459b9ed3ec3eee1b1Srv.exe
      C:\Users\Admin\AppData\Local\Temp\6121035a4467d1f21ec279d164e2ea02ea87cbf74aa5b91459b9ed3ec3eee1b1Srv.exe
      2⤵
      • Executes dropped EXE
      • Drops file in Program Files directory
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:2888
      • C:\Program Files (x86)\Microsoft\DesktopLayer.exe
        "C:\Program Files (x86)\Microsoft\DesktopLayer.exe"
        3⤵
        • Executes dropped EXE
        • System Location Discovery: System Language Discovery
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of WriteProcessMemory
        PID:3404
        • C:\Program Files\Internet Explorer\iexplore.exe
          "C:\Program Files\Internet Explorer\iexplore.exe"
          4⤵
          • Modifies Internet Explorer settings
          • Suspicious use of FindShellTrayWindow
          • Suspicious use of SetWindowsHookEx
          • Suspicious use of WriteProcessMemory
          PID:1188
          • C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
            "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:1188 CREDAT:17410 /prefetch:2
            5⤵
            • System Location Discovery: System Language Discovery
            • Modifies Internet Explorer settings
            • Suspicious use of SetWindowsHookEx
            PID:4352

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

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        Downloads

        7423F88C7F265F0DEFC08EA88C3BDE45_AA1E8580D4EBC816148CE81268683776

        • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\7423F88C7F265F0DEFC08EA88C3BDE45_AA1E8580D4EBC816148CE81268683776
        • Size 471B
        • SHA256 d6e2a573b1e137d8b823b82cfeaadeb30df36a0fa7a268a1278465b28fdc7bb6
        • MD5 SHA1 SHA512

        7423F88C7F265F0DEFC08EA88C3BDE45_AA1E8580D4EBC816148CE81268683776

        • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\7423F88C7F265F0DEFC08EA88C3BDE45_AA1E8580D4EBC816148CE81268683776
        • Size 404B
        • SHA256 3ae7e7ea69253e952db994ad7fc0402248de3689c54e8afedd3e5795a4d022a0
        • MD5 SHA1 SHA512

        suggestions[1].en-US

        • Path C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\IE\FQRZN8O7\suggestions[1].en-US
        • Size 17KB
        • SHA256 c6a5377cbc07eece33790cfc70572e12c7a48ad8296be25c0cc805a1f384dbad
        • MD5 SHA1 SHA512 SSDEEP

        6121035a4467d1f21ec279d164e2ea02ea87cbf74aa5b91459b9ed3ec3eee1b1Srv.exe

        • Path C:\Users\Admin\AppData\Local\Temp\6121035a4467d1f21ec279d164e2ea02ea87cbf74aa5b91459b9ed3ec3eee1b1Srv.exe
        • Size 55KB
        • SHA256 fd6c69c345f1e32924f0a5bb7393e191b393a78d58e2c6413b03ced7482f2320
        • MD5 SHA1 SHA512 SSDEEP

        memory/2888-6-0x0000000000540000-0x000000000054F000-memory.dmp

        memory/2888-5-0x0000000000400000-0x000000000042E000-memory.dmp

        memory/3404-10-0x0000000000400000-0x000000000042E000-memory.dmp

        memory/3404-14-0x0000000000490000-0x0000000000491000-memory.dmp

        memory/3404-13-0x0000000000400000-0x000000000042E000-memory.dmp

        memory/3404-15-0x0000000000400000-0x000000000042E000-memory.dmp

        memory/4816-0-0x0000000000400000-0x000000000083C000-memory.dmp

        memory/4816-18-0x0000000000400000-0x000000000083C000-memory.dmp