Analysis

  • max time kernel
    297s
  • max time network
    303s
  • platform
    windows7_x64
  • resource
    win7-20220812-es
  • resource tags

    arch:x64arch:x86image:win7-20220812-eslocale:es-esos:windows7-x64systemwindows
  • submitted
    03-01-2023 19:26

General

  • Target

    rufus-3.16.exe

  • Size

    1.1MB

  • MD5

    cd0bf68624ed7b1fb3be5aac4c610c16

  • SHA1

    ee16f346961ffb8093ea7b6e0821a1ee8fd226aa

  • SHA256

    00a0e0356a707a259b7605b292e51d081452ab4e2d5eb5ab7da1f10b0794c62f

  • SHA512

    f35edb5612702b5353a905a7ba53a058c08025dfd14f279944712c6963714409a0bb3494407f9348513556ab907a38b9ec2e8d756bcc985925a422c80f0c56af

  • SSDEEP

    24576:F+rBgnukuBjh4rVfUY0TEoaLR4ISvSOeiSY4U+0CcvW8RPM9XL:cx6VV3mcyNdWR

Score
8/10

Malware Config

Signatures

  • Downloads MZ/PE file
  • UPX packed file 1 IoCs

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

  • Checks whether UAC is enabled 1 TTPs 1 IoCs
  • Drops file in System32 directory 4 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Enumerates system info in registry 2 TTPs 3 IoCs
  • Modifies registry class 61 IoCs
  • Modifies system certificate store 2 TTPs 8 IoCs
  • Suspicious behavior: EnumeratesProcesses 7 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 14 IoCs
  • Suspicious use of FindShellTrayWindow 35 IoCs
  • Suspicious use of SendNotifyMessage 32 IoCs
  • Suspicious use of SetWindowsHookEx 2 IoCs
  • Suspicious use of WriteProcessMemory 64 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\rufus-3.16.exe
    "C:\Users\Admin\AppData\Local\Temp\rufus-3.16.exe"
    1⤵
    • Checks whether UAC is enabled
    • Drops file in System32 directory
    • Modifies registry class
    • Modifies system certificate store
    • Suspicious behavior: GetForegroundWindowSpam
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of FindShellTrayWindow
    • Suspicious use of SetWindowsHookEx
    PID:1824
  • C:\Windows\System32\vdsldr.exe
    C:\Windows\System32\vdsldr.exe -Embedding
    1⤵
      PID:1944
    • C:\Windows\System32\vds.exe
      C:\Windows\System32\vds.exe
      1⤵
        PID:2028
      • C:\Windows\explorer.exe
        "C:\Windows\explorer.exe"
        1⤵
          PID:1192
        • C:\Windows\system32\AUDIODG.EXE
          C:\Windows\system32\AUDIODG.EXE 0x528
          1⤵
          • Suspicious use of AdjustPrivilegeToken
          PID:1500
        • C:\Program Files\Google\Chrome\Application\chrome.exe
          "C:\Program Files\Google\Chrome\Application\chrome.exe"
          1⤵
          • Enumerates system info in registry
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of FindShellTrayWindow
          • Suspicious use of SendNotifyMessage
          • Suspicious use of WriteProcessMemory
          PID:1608
          • C:\Program Files\Google\Chrome\Application\chrome.exe
            "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=crashpad-handler "--user-data-dir=C:\Users\Admin\AppData\Local\Google\Chrome\User Data" /prefetch:7 --monitor-self-annotation=ptype=crashpad-handler "--database=C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Crashpad" "--metrics-dir=C:\Users\Admin\AppData\Local\Google\Chrome\User Data" --url=https://clients2.google.com/cr/report --annotation=channel= --annotation=plat=Win64 --annotation=prod=Chrome --annotation=ver=89.0.4389.114 --initial-client-data=0xc0,0xc4,0xc8,0x94,0xcc,0x7fef5834f50,0x7fef5834f60,0x7fef5834f70
            2⤵
              PID:1372
            • C:\Program Files\Google\Chrome\Application\chrome.exe
              "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=gpu-process --field-trial-handle=1040,16647568525288043189,8170813241264206973,131072 --gpu-preferences=SAAAAAAAAADgAAAwAAAAAAAAAAAAAAAAAABgAAAAAAAoAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAB4AAAAAAAAAHgAAAAAAAAAKAAAAAQAAAAgAAAAAAAAACgAAAAAAAAAMAAAAAAAAAA4AAAAAAAAABAAAAAAAAAAAAAAAAUAAAAQAAAAAAAAAAAAAAAGAAAAEAAAAAAAAAABAAAABQAAABAAAAAAAAAAAQAAAAYAAAAIAAAAAAAAAAgAAAAAAAAA --mojo-platform-channel-handle=1048 /prefetch:2
              2⤵
                PID:1772
              • C:\Program Files\Google\Chrome\Application\chrome.exe
                "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=utility --utility-sub-type=network.mojom.NetworkService --field-trial-handle=1040,16647568525288043189,8170813241264206973,131072 --lang=en-US --service-sandbox-type=network --mojo-platform-channel-handle=1260 /prefetch:8
                2⤵
                • Suspicious behavior: EnumeratesProcesses
                PID:1552
              • C:\Program Files\Google\Chrome\Application\chrome.exe
                "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=utility --utility-sub-type=storage.mojom.StorageService --field-trial-handle=1040,16647568525288043189,8170813241264206973,131072 --lang=en-US --service-sandbox-type=utility --mojo-platform-channel-handle=1812 /prefetch:8
                2⤵
                  PID:1656
                • C:\Program Files\Google\Chrome\Application\chrome.exe
                  "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=renderer --field-trial-handle=1040,16647568525288043189,8170813241264206973,131072 --lang=en-US --device-scale-factor=1 --num-raster-threads=1 --renderer-client-id=6 --no-v8-untrusted-code-mitigations --mojo-platform-channel-handle=1992 /prefetch:1
                  2⤵
                    PID:1688
                  • C:\Program Files\Google\Chrome\Application\chrome.exe
                    "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=renderer --field-trial-handle=1040,16647568525288043189,8170813241264206973,131072 --lang=en-US --device-scale-factor=1 --num-raster-threads=1 --renderer-client-id=5 --no-v8-untrusted-code-mitigations --mojo-platform-channel-handle=2068 /prefetch:1
                    2⤵
                      PID:1848
                    • C:\Program Files\Google\Chrome\Application\chrome.exe
                      "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=utility --utility-sub-type=data_decoder.mojom.DataDecoderService --field-trial-handle=1040,16647568525288043189,8170813241264206973,131072 --lang=en-US --service-sandbox-type=utility --mojo-platform-channel-handle=2780 /prefetch:8
                      2⤵
                        PID:2084
                      • C:\Program Files\Google\Chrome\Application\chrome.exe
                        "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=gpu-process --field-trial-handle=1040,16647568525288043189,8170813241264206973,131072 --gpu-preferences=SAAAAAAAAADgAAAwAAAAAAAAAAAAAAAAAABgAAAAAAAoAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAB4AAAAAAAAAHgAAAAAAAAAKAAAAAQAAAAgAAAAAAAAACgAAAAAAAAAMAAAAAAAAAA4AAAAAAAAABAAAAAAAAAAAAAAAAUAAAAQAAAAAAAAAAAAAAAGAAAAEAAAAAAAAAABAAAABQAAABAAAAAAAAAAAQAAAAYAAAAIAAAAAAAAAAgAAAAAAAAA --use-gl=swiftshader-webgl --mojo-platform-channel-handle=3288 /prefetch:2
                        2⤵
                          PID:2168
                        • C:\Program Files\Google\Chrome\Application\chrome.exe
                          "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=renderer --field-trial-handle=1040,16647568525288043189,8170813241264206973,131072 --disable-gpu-compositing --lang=en-US --device-scale-factor=1 --num-raster-threads=1 --renderer-client-id=9 --no-v8-untrusted-code-mitigations --mojo-platform-channel-handle=2400 /prefetch:1
                          2⤵
                            PID:2212
                          • C:\Program Files\Google\Chrome\Application\chrome.exe
                            "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=utility --utility-sub-type=data_decoder.mojom.DataDecoderService --field-trial-handle=1040,16647568525288043189,8170813241264206973,131072 --lang=en-US --service-sandbox-type=utility --mojo-platform-channel-handle=3504 /prefetch:8
                            2⤵
                              PID:2276
                            • C:\Program Files\Google\Chrome\Application\chrome.exe
                              "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=utility --utility-sub-type=data_decoder.mojom.DataDecoderService --field-trial-handle=1040,16647568525288043189,8170813241264206973,131072 --lang=en-US --service-sandbox-type=utility --mojo-platform-channel-handle=3632 /prefetch:8
                              2⤵
                                PID:2284
                              • C:\Program Files\Google\Chrome\Application\chrome.exe
                                "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=utility --utility-sub-type=data_decoder.mojom.DataDecoderService --field-trial-handle=1040,16647568525288043189,8170813241264206973,131072 --lang=en-US --service-sandbox-type=utility --mojo-platform-channel-handle=3716 /prefetch:8
                                2⤵
                                  PID:2356
                                • C:\Program Files\Google\Chrome\Application\chrome.exe
                                  "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=utility --utility-sub-type=data_decoder.mojom.DataDecoderService --field-trial-handle=1040,16647568525288043189,8170813241264206973,131072 --lang=en-US --service-sandbox-type=utility --mojo-platform-channel-handle=3524 /prefetch:8
                                  2⤵
                                    PID:2364
                                  • C:\Program Files\Google\Chrome\Application\chrome.exe
                                    "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=utility --utility-sub-type=data_decoder.mojom.DataDecoderService --field-trial-handle=1040,16647568525288043189,8170813241264206973,131072 --lang=en-US --service-sandbox-type=utility --mojo-platform-channel-handle=3572 /prefetch:8
                                    2⤵
                                      PID:2372
                                    • C:\Program Files\Google\Chrome\Application\chrome.exe
                                      "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=utility --utility-sub-type=data_decoder.mojom.DataDecoderService --field-trial-handle=1040,16647568525288043189,8170813241264206973,131072 --lang=en-US --service-sandbox-type=utility --mojo-platform-channel-handle=3568 /prefetch:8
                                      2⤵
                                        PID:2380
                                      • C:\Program Files\Google\Chrome\Application\chrome.exe
                                        "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=utility --utility-sub-type=data_decoder.mojom.DataDecoderService --field-trial-handle=1040,16647568525288043189,8170813241264206973,131072 --lang=en-US --service-sandbox-type=utility --mojo-platform-channel-handle=3856 /prefetch:8
                                        2⤵
                                          PID:2508
                                        • C:\Program Files\Google\Chrome\Application\chrome.exe
                                          "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=utility --utility-sub-type=data_decoder.mojom.DataDecoderService --field-trial-handle=1040,16647568525288043189,8170813241264206973,131072 --lang=en-US --service-sandbox-type=utility --mojo-platform-channel-handle=3928 /prefetch:8
                                          2⤵
                                            PID:2516
                                          • C:\Program Files\Google\Chrome\Application\chrome.exe
                                            "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=utility --utility-sub-type=data_decoder.mojom.DataDecoderService --field-trial-handle=1040,16647568525288043189,8170813241264206973,131072 --lang=en-US --service-sandbox-type=utility --mojo-platform-channel-handle=3908 /prefetch:8
                                            2⤵
                                              PID:2524
                                            • C:\Program Files\Google\Chrome\Application\chrome.exe
                                              "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=utility --utility-sub-type=unzip.mojom.Unzipper --field-trial-handle=1040,16647568525288043189,8170813241264206973,131072 --lang=en-US --service-sandbox-type=utility --mojo-platform-channel-handle=1552 /prefetch:8
                                              2⤵
                                                PID:2748
                                              • C:\Program Files\Google\Chrome\Application\chrome.exe
                                                "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=utility --utility-sub-type=data_decoder.mojom.DataDecoderService --field-trial-handle=1040,16647568525288043189,8170813241264206973,131072 --lang=en-US --service-sandbox-type=utility --mojo-platform-channel-handle=1520 /prefetch:8
                                                2⤵
                                                  PID:2792
                                                • C:\Program Files\Google\Chrome\Application\chrome.exe
                                                  "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=utility --utility-sub-type=chrome.mojom.UtilWin --field-trial-handle=1040,16647568525288043189,8170813241264206973,131072 --lang=en-US --service-sandbox-type=none --mojo-platform-channel-handle=1520 /prefetch:8
                                                  2⤵
                                                  • Suspicious behavior: EnumeratesProcesses
                                                  PID:2892
                                                • C:\Program Files\Google\Chrome\Application\chrome.exe
                                                  "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=utility --utility-sub-type=chrome.mojom.UtilWin --field-trial-handle=1040,16647568525288043189,8170813241264206973,131072 --lang=en-US --service-sandbox-type=none --mojo-platform-channel-handle=4024 /prefetch:8
                                                  2⤵
                                                  • Suspicious behavior: EnumeratesProcesses
                                                  PID:2980
                                                • C:\Program Files\Google\Chrome\Application\chrome.exe
                                                  "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=utility --utility-sub-type=data_decoder.mojom.DataDecoderService --field-trial-handle=1040,16647568525288043189,8170813241264206973,131072 --lang=en-US --service-sandbox-type=utility --mojo-platform-channel-handle=4068 /prefetch:8
                                                  2⤵
                                                    PID:2992
                                                  • C:\Program Files\Google\Chrome\Application\chrome.exe
                                                    "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=utility --utility-sub-type=unzip.mojom.Unzipper --field-trial-handle=1040,16647568525288043189,8170813241264206973,131072 --lang=en-US --service-sandbox-type=utility --mojo-platform-channel-handle=3144 /prefetch:8
                                                    2⤵
                                                      PID:3068
                                                    • C:\Program Files\Google\Chrome\Application\chrome.exe
                                                      "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=utility --utility-sub-type=data_decoder.mojom.DataDecoderService --field-trial-handle=1040,16647568525288043189,8170813241264206973,131072 --lang=en-US --service-sandbox-type=utility --mojo-platform-channel-handle=1512 /prefetch:8
                                                      2⤵
                                                        PID:2100
                                                      • C:\Program Files\Google\Chrome\Application\chrome.exe
                                                        "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=renderer --field-trial-handle=1040,16647568525288043189,8170813241264206973,131072 --disable-gpu-compositing --lang=en-US --extension-process --device-scale-factor=1 --num-raster-threads=1 --renderer-client-id=26 --no-v8-untrusted-code-mitigations --mojo-platform-channel-handle=3268 /prefetch:1
                                                        2⤵
                                                          PID:2308

                                                      Network

                                                      MITRE ATT&CK Enterprise v6

                                                      Replay Monitor

                                                      Loading Replay Monitor...

                                                      Downloads

                                                      • memory/1192-59-0x000007FEFB541000-0x000007FEFB543000-memory.dmp

                                                        Filesize

                                                        8KB

                                                      • memory/1824-54-0x0000000075BF1000-0x0000000075BF3000-memory.dmp

                                                        Filesize

                                                        8KB

                                                      • memory/1824-55-0x00000000001E0000-0x000000000053A000-memory.dmp

                                                        Filesize

                                                        3.4MB

                                                      • memory/1824-56-0x0000000073ED1000-0x0000000073ED3000-memory.dmp

                                                        Filesize

                                                        8KB

                                                      • memory/1824-57-0x00000000080D0000-0x000000000842A000-memory.dmp

                                                        Filesize

                                                        3.4MB

                                                      • memory/1824-58-0x0000000007CE0000-0x000000000803A000-memory.dmp

                                                        Filesize

                                                        3.4MB

                                                      • memory/1824-60-0x00000000080D0000-0x000000000842A000-memory.dmp

                                                        Filesize

                                                        3.4MB