Analysis

  • max time kernel
    155s
  • max time network
    168s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220414-en
  • submitted
    20-05-2022 22:21

General

  • Target

    dcf022c83dd3090ab93d331fadb4c145bed3323aba1e10e68caf0969b24c5910.exe

  • Size

    3.7MB

  • MD5

    dcab6a3b553a1bce6c3202ba1d5b60bb

  • SHA1

    89c7c300b75e288247dc767748934beacf44c62e

  • SHA256

    dcf022c83dd3090ab93d331fadb4c145bed3323aba1e10e68caf0969b24c5910

  • SHA512

    0143699c3600484dcce96d056c7bf6891e6fd9e8cc7e0a88aee350b49e257fbb7cae2028174ce1e2cf5f10bf8fed870101db5c745b670a8716a397e2c988489d

Score
10/10

Malware Config

Signatures

  • Modifies visibility of file extensions in Explorer 2 TTPs
  • 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 5 IoCs
  • Enumerates connected drives 3 TTPs 3 IoCs

    Attempts to read the root path of hard drives other than the default C: drive.

  • Drops file in System32 directory 7 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 4 IoCs
  • Modifies registry class 37 IoCs
  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious behavior: NtCreateUserProcessBlockNonMicrosoftBinary 7 IoCs
  • Suspicious use of FindShellTrayWindow 3 IoCs
  • Suspicious use of SetWindowsHookEx 4 IoCs
  • Suspicious use of WriteProcessMemory 64 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\dcf022c83dd3090ab93d331fadb4c145bed3323aba1e10e68caf0969b24c5910.exe
    "C:\Users\Admin\AppData\Local\Temp\dcf022c83dd3090ab93d331fadb4c145bed3323aba1e10e68caf0969b24c5910.exe"
    1⤵
    • Checks computer location settings
    • Adds Run key to start application
    • Drops file in System32 directory
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:768
    • C:\Windows\SysWOW64\explorer.exe
      "C:\Windows\System32\explorer.exe" C:\Users\Admin\AppData\Local\Temp\dcf022c83dd3090ab93d331fadb4c145bed3323aba1e10e68caf0969b24c5910
      2⤵
        PID:3672
      • C:\Windows\SysWOW64\msng.exe
        "C:\Windows\system32\msng.exe" fuckystart
        2⤵
        • Executes dropped EXE
        • Adds Run key to start application
        • Enumerates connected drives
        • Drops file in System32 directory
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious behavior: GetForegroundWindowSpam
        • Suspicious use of SetWindowsHookEx
        • Suspicious use of WriteProcessMemory
        PID:3732
        • C:\Windows\SysWOW64\explorer.exe
          explorer.exe http://www.OpenClose.ir
          3⤵
            PID:624
      • C:\Windows\explorer.exe
        C:\Windows\explorer.exe /factory,{75dff2b7-6936-4c06-a8bb-676a7b00b24b} -Embedding
        1⤵
        • Modifies Internet Explorer settings
        • Modifies registry class
        • Suspicious use of SetWindowsHookEx
        PID:4160
      • C:\Windows\explorer.exe
        C:\Windows\explorer.exe /factory,{75dff2b7-6936-4c06-a8bb-676a7b00b24b} -Embedding
        1⤵
        • Suspicious use of WriteProcessMemory
        PID:804
        • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
          "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --single-argument http://www.openclose.ir/
          2⤵
          • Adds Run key to start application
          • Enumerates system info in registry
          • Modifies registry class
          • Suspicious behavior: NtCreateUserProcessBlockNonMicrosoftBinary
          • Suspicious use of FindShellTrayWindow
          • Suspicious use of WriteProcessMemory
          PID:1420
          • 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=0xfc,0x100,0x104,0xd8,0x108,0x7ffb114346f8,0x7ffb11434708,0x7ffb11434718
            3⤵
              PID:1968
            • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
              "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=gpu-process --field-trial-handle=1988,13215222014924386510,16721082539167834150,131072 --gpu-preferences=UAAAAAAAAADgAAAQAAAAAAAAAAAAAAAAAABgAAAAAAAwAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAHgAAAAAAAAAeAAAAAAAAAAoAAAABAAAACAAAAAAAAAAKAAAAAAAAAAwAAAAAAAAADgAAAAAAAAAEAAAAAAAAAAAAAAADQAAABAAAAAAAAAAAQAAAA0AAAAQAAAAAAAAAAQAAAANAAAAEAAAAAAAAAAHAAAADQAAAAgAAAAAAAAACAAAAAAAAAA= --mojo-platform-channel-handle=2180 /prefetch:2
              3⤵
                PID:3908
              • 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=1988,13215222014924386510,16721082539167834150,131072 --lang=en-US --service-sandbox-type=none --mojo-platform-channel-handle=2468 /prefetch:3
                3⤵
                • Suspicious behavior: EnumeratesProcesses
                PID:4368
              • 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=1988,13215222014924386510,16721082539167834150,131072 --lang=en-US --service-sandbox-type=utility --mojo-platform-channel-handle=2772 /prefetch:8
                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=1988,13215222014924386510,16721082539167834150,131072 --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=3868 /prefetch:1
                  3⤵
                    PID:944
                  • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                    "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=1988,13215222014924386510,16721082539167834150,131072 --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=3820 /prefetch:1
                    3⤵
                      PID:64
                    • 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=1988,13215222014924386510,16721082539167834150,131072 --lang=en-US --service-sandbox-type=service --mojo-platform-channel-handle=5236 /prefetch:8
                      3⤵
                        PID:1372
                      • 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=1988,13215222014924386510,16721082539167834150,131072 --lang=en-US --service-sandbox-type=service --mojo-platform-channel-handle=5260 /prefetch:8
                        3⤵
                          PID:932
                        • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                          "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=1988,13215222014924386510,16721082539167834150,131072 --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=4988 /prefetch:1
                          3⤵
                            PID:1376
                          • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                            "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=1988,13215222014924386510,16721082539167834150,131072 --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=5640 /prefetch:1
                            3⤵
                              PID:1864
                            • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                              "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=1988,13215222014924386510,16721082539167834150,131072 --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=6236 /prefetch:1
                              3⤵
                                PID:3576
                              • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                                "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=1988,13215222014924386510,16721082539167834150,131072 --disable-gpu-compositing --lang=en-US --disable-client-side-phishing-detection --device-scale-factor=1 --num-raster-threads=1 --renderer-client-id=12 --no-v8-untrusted-code-mitigations --mojo-platform-channel-handle=6228 /prefetch:1
                                3⤵
                                  PID:4332
                                • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                                  "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=1988,13215222014924386510,16721082539167834150,131072 --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=4116 /prefetch:1
                                  3⤵
                                    PID:2244
                                  • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                                    "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=gpu-process --field-trial-handle=1988,13215222014924386510,16721082539167834150,131072 --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=3388 /prefetch:2
                                    3⤵
                                      PID:1120
                                    • 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=1988,13215222014924386510,16721082539167834150,131072 --lang=en-US --service-sandbox-type=none --mojo-platform-channel-handle=6496 /prefetch:8
                                      3⤵
                                        PID:4060
                                      • 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:1564
                                        • 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=0x220,0x224,0x228,0x1e8,0x22c,0x7ff69ec95460,0x7ff69ec95470,0x7ff69ec95480
                                          4⤵
                                            PID:3280
                                    • C:\Windows\System32\CompPkgSrv.exe
                                      C:\Windows\System32\CompPkgSrv.exe -Embedding
                                      1⤵
                                        PID:3872

                                      Network

                                      MITRE ATT&CK Matrix ATT&CK v6

                                      Persistence

                                      Hidden Files and Directories

                                      1
                                      T1158

                                      Registry Run Keys / Startup Folder

                                      1
                                      T1060

                                      Defense Evasion

                                      Hidden Files and Directories

                                      1
                                      T1158

                                      Modify Registry

                                      3
                                      T1112

                                      Discovery

                                      Query Registry

                                      3
                                      T1012

                                      System Information Discovery

                                      4
                                      T1082

                                      Peripheral Device Discovery

                                      1
                                      T1120

                                      Replay Monitor

                                      Loading Replay Monitor...

                                      Downloads

                                      • C:\Windows\SysWOW64\msng.exe
                                        Filesize

                                        3.7MB

                                        MD5

                                        dcab6a3b553a1bce6c3202ba1d5b60bb

                                        SHA1

                                        89c7c300b75e288247dc767748934beacf44c62e

                                        SHA256

                                        dcf022c83dd3090ab93d331fadb4c145bed3323aba1e10e68caf0969b24c5910

                                        SHA512

                                        0143699c3600484dcce96d056c7bf6891e6fd9e8cc7e0a88aee350b49e257fbb7cae2028174ce1e2cf5f10bf8fed870101db5c745b670a8716a397e2c988489d

                                      • C:\Windows\SysWOW64\msng.exe
                                        Filesize

                                        3.7MB

                                        MD5

                                        dcab6a3b553a1bce6c3202ba1d5b60bb

                                        SHA1

                                        89c7c300b75e288247dc767748934beacf44c62e

                                        SHA256

                                        dcf022c83dd3090ab93d331fadb4c145bed3323aba1e10e68caf0969b24c5910

                                        SHA512

                                        0143699c3600484dcce96d056c7bf6891e6fd9e8cc7e0a88aee350b49e257fbb7cae2028174ce1e2cf5f10bf8fed870101db5c745b670a8716a397e2c988489d

                                      • C:\~0002ftd.tmp
                                        Filesize

                                        100B

                                        MD5

                                        62bc1d702b4a69f188b417bb1dcbd11b

                                        SHA1

                                        6ab82d05924aeff05d00cd54bf152276875195b3

                                        SHA256

                                        7187fd637a29523b57e83824c2de1fbce670abe5c38f620da681acd177076887

                                        SHA512

                                        e0c814701a6f1b43820154bed493ddefd804bfbcd64469e86a2ae7d1bcdb2cae2192e1a355045791dec2397e62f8d24fecf42c71b67eda5fc2b728291be8ccf8

                                      • \??\pipe\LOCAL\crashpad_1420_PBDVIASLSWVYTOLT
                                        MD5

                                        d41d8cd98f00b204e9800998ecf8427e

                                        SHA1

                                        da39a3ee5e6b4b0d3255bfef95601890afd80709

                                        SHA256

                                        e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855

                                        SHA512

                                        cf83e1357eefb8bdf1542850d66d8007d620e4050b5715dc83f4a921d36ce9ce47d0d13c5d85f2b0ff8318d2877eec2f63b931bd47417a81a538327af927da3e

                                      • memory/64-151-0x0000000000000000-mapping.dmp
                                      • memory/624-139-0x0000000000000000-mapping.dmp
                                      • memory/932-155-0x0000000000000000-mapping.dmp
                                      • memory/944-149-0x0000000000000000-mapping.dmp
                                      • memory/1120-166-0x0000000000000000-mapping.dmp
                                      • memory/1372-153-0x0000000000000000-mapping.dmp
                                      • memory/1376-157-0x0000000000000000-mapping.dmp
                                      • memory/1420-140-0x0000000000000000-mapping.dmp
                                      • memory/1564-167-0x0000000000000000-mapping.dmp
                                      • memory/1864-159-0x0000000000000000-mapping.dmp
                                      • memory/1968-141-0x0000000000000000-mapping.dmp
                                      • memory/2244-165-0x0000000000000000-mapping.dmp
                                      • memory/3280-168-0x0000000000000000-mapping.dmp
                                      • memory/3576-161-0x0000000000000000-mapping.dmp
                                      • memory/3672-132-0x0000000000000000-mapping.dmp
                                      • memory/3732-133-0x0000000000000000-mapping.dmp
                                      • memory/3908-143-0x0000000000000000-mapping.dmp
                                      • memory/4132-147-0x0000000000000000-mapping.dmp
                                      • memory/4332-163-0x0000000000000000-mapping.dmp
                                      • memory/4368-144-0x0000000000000000-mapping.dmp