Analysis

  • max time kernel
    154s
  • max time network
    159s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220812-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
  • submitted
    25/11/2022, 12:35

General

  • Target

    ef80c202ecf26d09cc4e258678de8eea46aaba90517d1a4be5dfab243f8ecb6e.exe

  • Size

    2.0MB

  • MD5

    5f4bd3f3b5efadef56a9151432d8a96a

  • SHA1

    222a29c28f6167de49717fd514ed3083492535f6

  • SHA256

    ef80c202ecf26d09cc4e258678de8eea46aaba90517d1a4be5dfab243f8ecb6e

  • SHA512

    befee533883003077a8a93773af4a3f8e570f59803c73098e8fb5c14da466bde819b97446fbcc633c1187e29820f84df35eb62d19352cfa161d708eeeca2da7b

  • SSDEEP

    49152:zMNMD8ERuhf/WLMJxhd4jV7kFe+NYLgCuOd+9p:QNbBf/pcj+BNYVu9

Score
8/10

Malware Config

Signatures

  • UPX packed file 25 IoCs

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

  • Checks BIOS information in registry 2 TTPs 1 IoCs

    BIOS information is often read in order to detect sandboxing environments.

  • Adds Run key to start application 2 TTPs 1 IoCs
  • Drops file in Program Files directory 2 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 settings 1 TTPs 6 IoCs
  • Modifies Internet Explorer start page 1 TTPs 1 IoCs
  • Modifies registry class 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 4 IoCs
  • Suspicious behavior: NtCreateUserProcessBlockNonMicrosoftBinary 9 IoCs
  • Suspicious use of FindShellTrayWindow 2 IoCs
  • Suspicious use of SetWindowsHookEx 5 IoCs
  • Suspicious use of WriteProcessMemory 64 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\ef80c202ecf26d09cc4e258678de8eea46aaba90517d1a4be5dfab243f8ecb6e.exe
    "C:\Users\Admin\AppData\Local\Temp\ef80c202ecf26d09cc4e258678de8eea46aaba90517d1a4be5dfab243f8ecb6e.exe"
    1⤵
    • Checks BIOS information in registry
    • Modifies Internet Explorer settings
    • Modifies Internet Explorer start page
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:4548
    • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
      "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --single-argument http://www.yaofz.com/
      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:1980
      • 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=0xf8,0xfc,0x100,0xd4,0x104,0x7ffc937346f8,0x7ffc93734708,0x7ffc93734718
        3⤵
          PID:1448
        • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
          "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=gpu-process --field-trial-handle=2124,11838536570415861635,11029153141121957965,131072 --gpu-preferences=UAAAAAAAAADgAAAQAAAAAAAAAAAAAAAAAABgAAAAAAAwAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAHgAAAAAAAAAeAAAAAAAAAAoAAAABAAAACAAAAAAAAAAKAAAAAAAAAAwAAAAAAAAADgAAAAAAAAAEAAAAAAAAAAAAAAADQAAABAAAAAAAAAAAQAAAA0AAAAQAAAAAAAAAAQAAAANAAAAEAAAAAAAAAAHAAAADQAAAAgAAAAAAAAACAAAAAAAAAA= --mojo-platform-channel-handle=2176 /prefetch:2
          3⤵
            PID:4440
          • 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=2124,11838536570415861635,11029153141121957965,131072 --lang=en-US --service-sandbox-type=none --mojo-platform-channel-handle=2244 /prefetch:3
            3⤵
            • Suspicious behavior: EnumeratesProcesses
            PID:3444
          • 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=2124,11838536570415861635,11029153141121957965,131072 --lang=en-US --service-sandbox-type=utility --mojo-platform-channel-handle=2732 /prefetch:8
            3⤵
              PID:3860
            • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
              "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2124,11838536570415861635,11029153141121957965,131072 --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=3436 /prefetch:1
              3⤵
                PID:3992
              • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2124,11838536570415861635,11029153141121957965,131072 --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=3772 /prefetch:1
                3⤵
                  PID:4148
                • 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=2124,11838536570415861635,11029153141121957965,131072 --lang=en-US --service-sandbox-type=service --mojo-platform-channel-handle=5168 /prefetch:8
                  3⤵
                    PID:2516
                  • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                    "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2124,11838536570415861635,11029153141121957965,131072 --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=5064 /prefetch:1
                    3⤵
                      PID:4132
                    • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                      "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2124,11838536570415861635,11029153141121957965,131072 --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=5528 /prefetch:1
                      3⤵
                        PID:856
                      • 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=2124,11838536570415861635,11029153141121957965,131072 --lang=en-US --service-sandbox-type=service --mojo-platform-channel-handle=5508 /prefetch:8
                        3⤵
                          PID:4428
                        • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                          "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2124,11838536570415861635,11029153141121957965,131072 --disable-gpu-compositing --lang=en-US --disable-client-side-phishing-detection --device-scale-factor=1 --num-raster-threads=1 --renderer-client-id=11 --no-v8-untrusted-code-mitigations --mojo-platform-channel-handle=5800 /prefetch:1
                          3⤵
                            PID:3836
                          • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                            "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2124,11838536570415861635,11029153141121957965,131072 --disable-gpu-compositing --lang=en-US --disable-client-side-phishing-detection --instant-process --device-scale-factor=1 --num-raster-threads=1 --renderer-client-id=12 --no-v8-untrusted-code-mitigations --mojo-platform-channel-handle=5752 /prefetch:1
                            3⤵
                              PID:2064
                            • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                              "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2124,11838536570415861635,11029153141121957965,131072 --disable-gpu-compositing --lang=en-US --disable-client-side-phishing-detection --device-scale-factor=1 --num-raster-threads=1 --renderer-client-id=13 --no-v8-untrusted-code-mitigations --mojo-platform-channel-handle=5576 /prefetch:1
                              3⤵
                                PID:936
                              • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                                "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2124,11838536570415861635,11029153141121957965,131072 --disable-gpu-compositing --lang=en-US --disable-client-side-phishing-detection --device-scale-factor=1 --num-raster-threads=1 --renderer-client-id=14 --no-v8-untrusted-code-mitigations --mojo-platform-channel-handle=1044 /prefetch:1
                                3⤵
                                  PID:1848
                                • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                                  "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2124,11838536570415861635,11029153141121957965,131072 --disable-gpu-compositing --lang=en-US --disable-client-side-phishing-detection --device-scale-factor=1 --num-raster-threads=1 --renderer-client-id=15 --no-v8-untrusted-code-mitigations --mojo-platform-channel-handle=3348 /prefetch:1
                                  3⤵
                                    PID:2620
                                  • 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=2124,11838536570415861635,11029153141121957965,131072 --lang=en-US --service-sandbox-type=none --mojo-platform-channel-handle=6708 /prefetch:8
                                    3⤵
                                      PID:3980
                                    • 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:4212
                                      • 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=0x104,0xfc,0xf8,0x114,0xf4,0x7ff6a91d5460,0x7ff6a91d5470,0x7ff6a91d5480
                                        4⤵
                                          PID:4304
                                  • C:\Windows\System32\CompPkgSrv.exe
                                    C:\Windows\System32\CompPkgSrv.exe -Embedding
                                    1⤵
                                      PID:4008

                                    Network

                                    MITRE ATT&CK Enterprise v6

                                    Replay Monitor

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                                    Downloads

                                    • memory/4548-151-0x0000000010000000-0x000000001003D000-memory.dmp

                                      Filesize

                                      244KB

                                    • memory/4548-157-0x0000000010000000-0x000000001003D000-memory.dmp

                                      Filesize

                                      244KB

                                    • memory/4548-169-0x0000000010000000-0x000000001003D000-memory.dmp

                                      Filesize

                                      244KB

                                    • memory/4548-167-0x0000000010000000-0x000000001003D000-memory.dmp

                                      Filesize

                                      244KB

                                    • memory/4548-171-0x0000000010000000-0x000000001003D000-memory.dmp

                                      Filesize

                                      244KB

                                    • memory/4548-173-0x0000000010000000-0x000000001003D000-memory.dmp

                                      Filesize

                                      244KB

                                    • memory/4548-175-0x0000000010000000-0x000000001003D000-memory.dmp

                                      Filesize

                                      244KB

                                    • memory/4548-177-0x0000000010000000-0x000000001003D000-memory.dmp

                                      Filesize

                                      244KB

                                    • memory/4548-179-0x0000000010000000-0x000000001003D000-memory.dmp

                                      Filesize

                                      244KB

                                    • memory/4548-181-0x0000000010000000-0x000000001003D000-memory.dmp

                                      Filesize

                                      244KB

                                    • memory/4548-182-0x0000000010000000-0x000000001003D000-memory.dmp

                                      Filesize

                                      244KB

                                    • memory/4548-183-0x0000000000400000-0x00000000006A7000-memory.dmp

                                      Filesize

                                      2.7MB

                                    • memory/4548-184-0x0000000010000000-0x000000001003D000-memory.dmp

                                      Filesize

                                      244KB

                                    • memory/4548-163-0x0000000010000000-0x000000001003D000-memory.dmp

                                      Filesize

                                      244KB

                                    • memory/4548-161-0x0000000010000000-0x000000001003D000-memory.dmp

                                      Filesize

                                      244KB

                                    • memory/4548-187-0x0000000000400000-0x00000000006A7000-memory.dmp

                                      Filesize

                                      2.7MB

                                    • memory/4548-159-0x0000000010000000-0x000000001003D000-memory.dmp

                                      Filesize

                                      244KB

                                    • memory/4548-165-0x0000000010000000-0x000000001003D000-memory.dmp

                                      Filesize

                                      244KB

                                    • memory/4548-155-0x0000000010000000-0x000000001003D000-memory.dmp

                                      Filesize

                                      244KB

                                    • memory/4548-153-0x0000000010000000-0x000000001003D000-memory.dmp

                                      Filesize

                                      244KB

                                    • memory/4548-132-0x0000000000400000-0x00000000006A7000-memory.dmp

                                      Filesize

                                      2.7MB

                                    • memory/4548-149-0x0000000010000000-0x000000001003D000-memory.dmp

                                      Filesize

                                      244KB

                                    • memory/4548-147-0x0000000010000000-0x000000001003D000-memory.dmp

                                      Filesize

                                      244KB

                                    • memory/4548-145-0x0000000010000000-0x000000001003D000-memory.dmp

                                      Filesize

                                      244KB

                                    • memory/4548-143-0x0000000010000000-0x000000001003D000-memory.dmp

                                      Filesize

                                      244KB

                                    • memory/4548-141-0x0000000010000000-0x000000001003D000-memory.dmp

                                      Filesize

                                      244KB

                                    • memory/4548-140-0x0000000010000000-0x000000001003D000-memory.dmp

                                      Filesize

                                      244KB

                                    • memory/4548-139-0x0000000010000000-0x000000001003D000-memory.dmp

                                      Filesize

                                      244KB

                                    • memory/4548-138-0x0000000000400000-0x00000000006A7000-memory.dmp

                                      Filesize

                                      2.7MB

                                    • memory/4548-137-0x0000000000400000-0x00000000006A7000-memory.dmp

                                      Filesize

                                      2.7MB

                                    • memory/4548-135-0x0000000000400000-0x00000000006A7000-memory.dmp

                                      Filesize

                                      2.7MB

                                    • memory/4548-134-0x0000000000400000-0x00000000006A7000-memory.dmp

                                      Filesize

                                      2.7MB

                                    • memory/4548-133-0x0000000000400000-0x00000000006A7000-memory.dmp

                                      Filesize

                                      2.7MB