Analysis

  • max time kernel
    157s
  • max time network
    165s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220812-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
  • submitted
    19-09-2022 02:50

General

  • Target

    791f85acd61443d522c32d8c21e3f447dfcfb50a60ebce3cf026b409df8222a7.exe

  • Size

    18KB

  • MD5

    9eadf7f4b39bb189b8025eacb883fa78

  • SHA1

    5708d5c2e9fc4adc3bb5c0dfaf53785b0708face

  • SHA256

    791f85acd61443d522c32d8c21e3f447dfcfb50a60ebce3cf026b409df8222a7

  • SHA512

    bbd46731e00555163f13cf6997038aaab7b7fa8ed9ffe95a22f0511c26758b8852ab694a8ff8e84a6fdf1b2bbc59b96730068b621804cabb67d84aa3e1d1f6a6

  • SSDEEP

    384:yp8GQKhqticjYNhNoT84bCecusshb1vcWLr2amWvWUEzB1My/:nwhqticooZjcusshBLr2afEt1b

Score
8/10

Malware Config

Signatures

  • Executes dropped EXE 1 IoCs
  • Checks computer location settings 2 TTPs 1 IoCs

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

  • Adds Run key to start application 2 TTPs 2 IoCs
  • Drops file in System32 directory 2 IoCs
  • Drops file in Program Files directory 2 IoCs
  • Drops file in Windows directory 7 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 Internet Explorer start page 1 TTPs 1 IoCs
  • Modifies registry class 3 IoCs
  • Suspicious behavior: EnumeratesProcesses 10 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious behavior: NtCreateUserProcessBlockNonMicrosoftBinary 5 IoCs
  • Suspicious use of FindShellTrayWindow 3 IoCs
  • Suspicious use of SetWindowsHookEx 2 IoCs
  • Suspicious use of WriteProcessMemory 64 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\791f85acd61443d522c32d8c21e3f447dfcfb50a60ebce3cf026b409df8222a7.exe
    "C:\Users\Admin\AppData\Local\Temp\791f85acd61443d522c32d8c21e3f447dfcfb50a60ebce3cf026b409df8222a7.exe"
    1⤵
    • Checks computer location settings
    • Drops file in Windows directory
    • Modifies registry class
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:1192
    • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
      "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --single-argument http://www.18hi.net/
      2⤵
      • Adds Run key to start application
      • Enumerates system info in registry
      • Modifies registry class
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious behavior: NtCreateUserProcessBlockNonMicrosoftBinary
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of WriteProcessMemory
      PID:2248
      • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
        "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=crashpad-handler "--user-data-dir=C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data" /prefetch:7 --monitor-self-annotation=ptype=crashpad-handler "--database=C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data\Crashpad" "--metrics-dir=C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data" --annotation=IsOfficialBuild=1 --annotation=channel= --annotation=chromium-version=92.0.4515.131 "--annotation=exe=C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --annotation=plat=Win64 "--annotation=prod=Microsoft Edge" --annotation=ver=92.0.902.67 --initial-client-data=0x100,0x104,0x108,0xdc,0x10c,0x7fff3e1a46f8,0x7fff3e1a4708,0x7fff3e1a4718
        3⤵
          PID:3424
        • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
          "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=gpu-process --field-trial-handle=2140,9150352238390961657,14933226335192457006,131072 --gpu-preferences=UAAAAAAAAADgAAAQAAAAAAAAAAAAAAAAAABgAAAAAAAwAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAHgAAAAAAAAAeAAAAAAAAAAoAAAABAAAACAAAAAAAAAAKAAAAAAAAAAwAAAAAAAAADgAAAAAAAAAEAAAAAAAAAAAAAAADQAAABAAAAAAAAAAAQAAAA0AAAAQAAAAAAAAAAQAAAANAAAAEAAAAAAAAAAHAAAADQAAAAgAAAAAAAAACAAAAAAAAAA= --mojo-platform-channel-handle=2252 /prefetch:2
          3⤵
            PID:4308
          • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
            "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=network.mojom.NetworkService --field-trial-handle=2140,9150352238390961657,14933226335192457006,131072 --lang=en-US --service-sandbox-type=none --mojo-platform-channel-handle=2400 /prefetch:3
            3⤵
            • Suspicious behavior: EnumeratesProcesses
            PID:1620
          • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
            "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=storage.mojom.StorageService --field-trial-handle=2140,9150352238390961657,14933226335192457006,131072 --lang=en-US --service-sandbox-type=utility --mojo-platform-channel-handle=2696 /prefetch:8
            3⤵
              PID:4284
            • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
              "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2140,9150352238390961657,14933226335192457006,131072 --lang=en-US --disable-client-side-phishing-detection --device-scale-factor=1 --num-raster-threads=1 --renderer-client-id=6 --no-v8-untrusted-code-mitigations --mojo-platform-channel-handle=3928 /prefetch:1
              3⤵
                PID:3460
              • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2140,9150352238390961657,14933226335192457006,131072 --lang=en-US --disable-client-side-phishing-detection --device-scale-factor=1 --num-raster-threads=1 --renderer-client-id=5 --no-v8-untrusted-code-mitigations --mojo-platform-channel-handle=3932 /prefetch:1
                3⤵
                  PID:1292
                • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                  "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=data_decoder.mojom.DataDecoderService --field-trial-handle=2140,9150352238390961657,14933226335192457006,131072 --lang=en-US --service-sandbox-type=service --mojo-platform-channel-handle=5300 /prefetch:8
                  3⤵
                    PID:5080
                  • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                    "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2140,9150352238390961657,14933226335192457006,131072 --disable-gpu-compositing --lang=en-US --disable-client-side-phishing-detection --device-scale-factor=1 --num-raster-threads=1 --renderer-client-id=8 --no-v8-untrusted-code-mitigations --mojo-platform-channel-handle=5860 /prefetch:1
                    3⤵
                      PID:2472
                    • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                      "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2140,9150352238390961657,14933226335192457006,131072 --disable-gpu-compositing --lang=en-US --disable-client-side-phishing-detection --device-scale-factor=1 --num-raster-threads=1 --renderer-client-id=9 --no-v8-untrusted-code-mitigations --mojo-platform-channel-handle=3248 /prefetch:1
                      3⤵
                        PID:4936
                      • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                        "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2140,9150352238390961657,14933226335192457006,131072 --disable-gpu-compositing --lang=en-US --disable-client-side-phishing-detection --instant-process --device-scale-factor=1 --num-raster-threads=1 --renderer-client-id=10 --no-v8-untrusted-code-mitigations --mojo-platform-channel-handle=3168 /prefetch:1
                        3⤵
                          PID:2876
                        • C:\Program Files (x86)\Microsoft\Edge\Application\92.0.902.67\identity_helper.exe
                          "C:\Program Files (x86)\Microsoft\Edge\Application\92.0.902.67\identity_helper.exe" --type=utility --utility-sub-type=winrt_app_id.mojom.WinrtAppIdService --field-trial-handle=2140,9150352238390961657,14933226335192457006,131072 --lang=en-US --service-sandbox-type=none --mojo-platform-channel-handle=6764 /prefetch:8
                          3⤵
                            PID:1312
                          • C:\Program Files (x86)\Microsoft\Edge\Application\92.0.902.67\Installer\setup.exe
                            "C:\Program Files (x86)\Microsoft\Edge\Application\92.0.902.67\Installer\setup.exe" --configure-user-settings --verbose-logging --system-level --msedge --force-configure-user-settings
                            3⤵
                            • Drops file in Program Files directory
                            PID:3328
                            • C:\Program Files (x86)\Microsoft\Edge\Application\92.0.902.67\Installer\setup.exe
                              "C:\Program Files (x86)\Microsoft\Edge\Application\92.0.902.67\Installer\setup.exe" --type=crashpad-handler /prefetch:7 --monitor-self-annotation=ptype=crashpad-handler --database=C:\Windows\TEMP\MsEdgeCrashpad --annotation=IsOfficialBuild=1 --annotation=channel= --annotation=chromium-version=92.0.4515.131 "--annotation=exe=C:\Program Files (x86)\Microsoft\Edge\Application\92.0.902.67\Installer\setup.exe" --annotation=plat=Win64 "--annotation=prod=Microsoft Edge" --annotation=ver=92.0.902.67 --initial-client-data=0x224,0x228,0x22c,0x220,0x230,0x7ff7e91d5460,0x7ff7e91d5470,0x7ff7e91d5480
                              4⤵
                                PID:3624
                            • C:\Program Files (x86)\Microsoft\Edge\Application\92.0.902.67\identity_helper.exe
                              "C:\Program Files (x86)\Microsoft\Edge\Application\92.0.902.67\identity_helper.exe" --type=utility --utility-sub-type=winrt_app_id.mojom.WinrtAppIdService --field-trial-handle=2140,9150352238390961657,14933226335192457006,131072 --lang=en-US --service-sandbox-type=none --mojo-platform-channel-handle=6764 /prefetch:8
                              3⤵
                              • Suspicious behavior: EnumeratesProcesses
                              PID:1392
                            • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                              "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=unzip.mojom.Unzipper --field-trial-handle=2140,9150352238390961657,14933226335192457006,131072 --lang=en-US --service-sandbox-type=utility --mojo-platform-channel-handle=6392 /prefetch:8
                              3⤵
                                PID:380
                              • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                                "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=gpu-process --field-trial-handle=2140,9150352238390961657,14933226335192457006,131072 --disable-gpu-sandbox --use-gl=disabled --gpu-vendor-id=5140 --gpu-device-id=140 --gpu-sub-system-id=0 --gpu-revision=0 --gpu-driver-version=10.0.19041.546 --gpu-preferences=UAAAAAAAAADoAAAQAAAAAAAAAAAAAAAAAABgAAAEAAAwAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAHgAAAAAAAAAeAAAAAAAAAAoAAAABAAAACAAAAAAAAAAKAAAAAAAAAAwAAAAAAAAADgAAAAAAAAAEAAAAAAAAAAAAAAADQAAABAAAAAAAAAAAQAAAA0AAAAQAAAAAAAAAAQAAAANAAAAEAAAAAAAAAAHAAAADQAAAAgAAAAAAAAACAAAAAAAAAA= --mojo-platform-channel-handle=5372 /prefetch:2
                                3⤵
                                • Suspicious behavior: EnumeratesProcesses
                                PID:2300
                            • C:\Windows\system\PHIME2OO2A.EXE
                              "C:\Windows\system\PHIME2OO2A.EXE"
                              2⤵
                              • Executes dropped EXE
                              • Adds Run key to start application
                              • Drops file in System32 directory
                              • Drops file in Windows directory
                              • Modifies Internet Explorer start page
                              • Modifies registry class
                              • Suspicious behavior: GetForegroundWindowSpam
                              • Suspicious use of SetWindowsHookEx
                              PID:2216
                          • C:\Windows\System32\CompPkgSrv.exe
                            C:\Windows\System32\CompPkgSrv.exe -Embedding
                            1⤵
                              PID:4084

                            Network

                            MITRE ATT&CK Enterprise v6

                            Replay Monitor

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                            Downloads

                            • C:\Windows\System\PHIME2OO2A.EXE

                              Filesize

                              18KB

                              MD5

                              9eadf7f4b39bb189b8025eacb883fa78

                              SHA1

                              5708d5c2e9fc4adc3bb5c0dfaf53785b0708face

                              SHA256

                              791f85acd61443d522c32d8c21e3f447dfcfb50a60ebce3cf026b409df8222a7

                              SHA512

                              bbd46731e00555163f13cf6997038aaab7b7fa8ed9ffe95a22f0511c26758b8852ab694a8ff8e84a6fdf1b2bbc59b96730068b621804cabb67d84aa3e1d1f6a6

                            • C:\Windows\system\PHIME2OO2A.EXE

                              Filesize

                              18KB

                              MD5

                              9eadf7f4b39bb189b8025eacb883fa78

                              SHA1

                              5708d5c2e9fc4adc3bb5c0dfaf53785b0708face

                              SHA256

                              791f85acd61443d522c32d8c21e3f447dfcfb50a60ebce3cf026b409df8222a7

                              SHA512

                              bbd46731e00555163f13cf6997038aaab7b7fa8ed9ffe95a22f0511c26758b8852ab694a8ff8e84a6fdf1b2bbc59b96730068b621804cabb67d84aa3e1d1f6a6

                            • memory/1192-140-0x0000000000400000-0x0000000000411000-memory.dmp

                              Filesize

                              68KB

                            • memory/1192-134-0x0000000000400000-0x0000000000411000-memory.dmp

                              Filesize

                              68KB

                            • memory/2216-150-0x0000000000400000-0x0000000000411000-memory.dmp

                              Filesize

                              68KB

                            • memory/2216-143-0x0000000000400000-0x0000000000411000-memory.dmp

                              Filesize

                              68KB