Resubmissions

12/02/2022, 08:00

220212-jwe74ahgh6 8

12/01/2022, 18:56

220112-xlrd9sdfhm 8

12/01/2022, 06:29

220112-g9cm1sbdg5 6

Analysis

  • max time kernel
    287s
  • max time network
    270s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-en-20220113
  • submitted
    12/02/2022, 08:00

General

  • Target

    WindowsFormsApp1.exe

  • Size

    117KB

  • MD5

    e7138eb2f838114591d0917050710bff

  • SHA1

    55f4b508ed4ed8e6650057b7a7538fda9dbdf2e7

  • SHA256

    bb0bca92cc74cac6b770649c5e70b0f4fd177de58fcfc7c719223485624dc28b

  • SHA512

    09a05490a40a05e1df42022742512a417c1a6970c06f32e445fb4aa12a123ea72f7cb2ed4da1ac1365229114c18578ae3e4baecbd653f81b77cf750a86554cc2

Score
8/10

Malware Config

Signatures

  • Modifies extensions of user files 3 IoCs

    Ransomware generally changes the extension on encrypted files.

  • Drops desktop.ini file(s) 5 IoCs
  • Drops file in Windows directory 8 IoCs
  • Enumerates system info in registry 2 TTPs 3 IoCs
  • Modifies registry class 64 IoCs
  • Suspicious behavior: EnumeratesProcesses 14 IoCs
  • Suspicious behavior: NtCreateUserProcessBlockNonMicrosoftBinary 8 IoCs
  • Suspicious use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of FindShellTrayWindow 64 IoCs
  • Suspicious use of SendNotifyMessage 24 IoCs
  • Suspicious use of SetWindowsHookEx 4 IoCs
  • Suspicious use of WriteProcessMemory 64 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\WindowsFormsApp1.exe
    "C:\Users\Admin\AppData\Local\Temp\WindowsFormsApp1.exe"
    1⤵
    • Modifies extensions of user files
    • Drops desktop.ini file(s)
    • Suspicious use of FindShellTrayWindow
    PID:4988
  • C:\Windows\system32\svchost.exe
    C:\Windows\system32\svchost.exe -k netsvcs -p -s wuauserv
    1⤵
    • Drops file in Windows directory
    • Suspicious use of AdjustPrivilegeToken
    PID:2164
  • C:\Windows\winsxs\amd64_microsoft-windows-servicingstack_31bf3856ad364e35_10.0.19041.1220_none_7e21bc567c7ed16b\TiWorker.exe
    C:\Windows\winsxs\amd64_microsoft-windows-servicingstack_31bf3856ad364e35_10.0.19041.1220_none_7e21bc567c7ed16b\TiWorker.exe -Embedding
    1⤵
    • Drops file in Windows directory
    • Suspicious use of AdjustPrivilegeToken
    PID:3096
  • 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 behavior: NtCreateUserProcessBlockNonMicrosoftBinary
    • Suspicious use of SendNotifyMessage
    • Suspicious use of WriteProcessMemory
    PID:4292
    • 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=0xfc,0x100,0x104,0xd8,0x108,0x7ffd01074f50,0x7ffd01074f60,0x7ffd01074f70
      2⤵
        PID:3052
      • C:\Program Files\Google\Chrome\Application\chrome.exe
        "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=gpu-process --field-trial-handle=1628,7240221852390346717,145154980018014808,131072 --gpu-preferences=SAAAAAAAAADgAAAwAAAAAAAAAAAAAAAAAABgAAAAAAAoAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAB4AAAAAAAAAHgAAAAAAAAAKAAAAAQAAAAgAAAAAAAAACgAAAAAAAAAMAAAAAAAAAA4AAAAAAAAABAAAAAAAAAAAAAAAAUAAAAQAAAAAAAAAAAAAAAGAAAAEAAAAAAAAAABAAAABQAAABAAAAAAAAAAAQAAAAYAAAAIAAAAAAAAAAgAAAAAAAAA --mojo-platform-channel-handle=1636 /prefetch:2
        2⤵
          PID:3696
        • 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=1628,7240221852390346717,145154980018014808,131072 --lang=en-US --service-sandbox-type=network --mojo-platform-channel-handle=2016 /prefetch:8
          2⤵
          • Suspicious behavior: EnumeratesProcesses
          PID:3700
        • 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=1628,7240221852390346717,145154980018014808,131072 --lang=en-US --service-sandbox-type=utility --mojo-platform-channel-handle=2284 /prefetch:8
          2⤵
            PID:2276
          • C:\Program Files\Google\Chrome\Application\chrome.exe
            "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=renderer --field-trial-handle=1628,7240221852390346717,145154980018014808,131072 --lang=en-US --device-scale-factor=1 --num-raster-threads=1 --renderer-client-id=6 --no-v8-untrusted-code-mitigations --mojo-platform-channel-handle=3044 /prefetch:1
            2⤵
              PID:2184
            • C:\Program Files\Google\Chrome\Application\chrome.exe
              "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=renderer --field-trial-handle=1628,7240221852390346717,145154980018014808,131072 --lang=en-US --device-scale-factor=1 --num-raster-threads=1 --renderer-client-id=5 --no-v8-untrusted-code-mitigations --mojo-platform-channel-handle=3188 /prefetch:1
              2⤵
                PID:4980
              • C:\Program Files\Google\Chrome\Application\chrome.exe
                "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=renderer --field-trial-handle=1628,7240221852390346717,145154980018014808,131072 --disable-gpu-compositing --lang=en-US --device-scale-factor=1 --num-raster-threads=1 --renderer-client-id=7 --no-v8-untrusted-code-mitigations --mojo-platform-channel-handle=3744 /prefetch:1
                2⤵
                  PID:4640
                • 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=1628,7240221852390346717,145154980018014808,131072 --lang=en-US --service-sandbox-type=utility --mojo-platform-channel-handle=4476 /prefetch:8
                  2⤵
                    PID:4328
                  • 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=1628,7240221852390346717,145154980018014808,131072 --lang=en-US --service-sandbox-type=none --mojo-platform-channel-handle=4592 /prefetch:8
                    2⤵
                    • Suspicious behavior: EnumeratesProcesses
                    PID:3796
                  • 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=1628,7240221852390346717,145154980018014808,131072 --lang=en-US --service-sandbox-type=utility --mojo-platform-channel-handle=3496 /prefetch:8
                    2⤵
                      PID:4428
                    • 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=1628,7240221852390346717,145154980018014808,131072 --lang=en-US --service-sandbox-type=utility --mojo-platform-channel-handle=4932 /prefetch:8
                      2⤵
                        PID:4448
                      • 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=1628,7240221852390346717,145154980018014808,131072 --lang=en-US --service-sandbox-type=utility --mojo-platform-channel-handle=4540 /prefetch:8
                        2⤵
                          PID:3064
                        • 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=1628,7240221852390346717,145154980018014808,131072 --lang=en-US --service-sandbox-type=utility --mojo-platform-channel-handle=3620 /prefetch:8
                          2⤵
                            PID:1948
                          • 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=1628,7240221852390346717,145154980018014808,131072 --lang=en-US --service-sandbox-type=none --mojo-platform-channel-handle=4780 /prefetch:8
                            2⤵
                            • Suspicious behavior: EnumeratesProcesses
                            PID:4336
                          • 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=1628,7240221852390346717,145154980018014808,131072 --lang=en-US --service-sandbox-type=utility --mojo-platform-channel-handle=5484 /prefetch:8
                            2⤵
                              PID:2128
                            • 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=1628,7240221852390346717,145154980018014808,131072 --lang=en-US --service-sandbox-type=utility --mojo-platform-channel-handle=4572 /prefetch:8
                              2⤵
                                PID:1148
                              • 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=1628,7240221852390346717,145154980018014808,131072 --lang=en-US --service-sandbox-type=utility --mojo-platform-channel-handle=4784 /prefetch:8
                                2⤵
                                  PID:384
                                • 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=1628,7240221852390346717,145154980018014808,131072 --lang=en-US --service-sandbox-type=utility --mojo-platform-channel-handle=5776 /prefetch:8
                                  2⤵
                                    PID:2988
                                  • 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=1628,7240221852390346717,145154980018014808,131072 --lang=en-US --service-sandbox-type=utility --mojo-platform-channel-handle=4492 /prefetch:8
                                    2⤵
                                      PID:4864
                                    • 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=1628,7240221852390346717,145154980018014808,131072 --lang=en-US --service-sandbox-type=utility --mojo-platform-channel-handle=5632 /prefetch:8
                                      2⤵
                                        PID:3012
                                      • 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=1628,7240221852390346717,145154980018014808,131072 --lang=en-US --service-sandbox-type=utility --mojo-platform-channel-handle=5588 /prefetch:8
                                        2⤵
                                          PID:4676
                                        • C:\Program Files\Google\Chrome\Application\chrome.exe
                                          "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=renderer --field-trial-handle=1628,7240221852390346717,145154980018014808,131072 --disable-gpu-compositing --lang=en-US --extension-process --device-scale-factor=1 --num-raster-threads=1 --renderer-client-id=22 --no-v8-untrusted-code-mitigations --mojo-platform-channel-handle=5532 /prefetch:1
                                          2⤵
                                            PID:4240
                                          • C:\Program Files\Google\Chrome\Application\chrome.exe
                                            "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=renderer --field-trial-handle=1628,7240221852390346717,145154980018014808,131072 --disable-gpu-compositing --lang=en-US --device-scale-factor=1 --num-raster-threads=1 --renderer-client-id=23 --no-v8-untrusted-code-mitigations --mojo-platform-channel-handle=5876 /prefetch:1
                                            2⤵
                                              PID:3412
                                            • C:\Program Files\Google\Chrome\Application\chrome.exe
                                              "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=renderer --field-trial-handle=1628,7240221852390346717,145154980018014808,131072 --disable-gpu-compositing --lang=en-US --device-scale-factor=1 --num-raster-threads=1 --renderer-client-id=24 --no-v8-untrusted-code-mitigations --mojo-platform-channel-handle=3296 /prefetch:1
                                              2⤵
                                                PID:4124
                                              • C:\Program Files\Google\Chrome\Application\chrome.exe
                                                "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=renderer --field-trial-handle=1628,7240221852390346717,145154980018014808,131072 --disable-gpu-compositing --lang=en-US --device-scale-factor=1 --num-raster-threads=1 --renderer-client-id=25 --no-v8-untrusted-code-mitigations --mojo-platform-channel-handle=2580 /prefetch:1
                                                2⤵
                                                  PID:1424
                                                • C:\Program Files\Google\Chrome\Application\chrome.exe
                                                  "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=renderer --field-trial-handle=1628,7240221852390346717,145154980018014808,131072 --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=5764 /prefetch:1
                                                  2⤵
                                                    PID:4416
                                                  • 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=1628,7240221852390346717,145154980018014808,131072 --lang=en-US --service-sandbox-type=none --mojo-platform-channel-handle=4712 /prefetch:8
                                                    2⤵
                                                    • Modifies registry class
                                                    • Suspicious behavior: EnumeratesProcesses
                                                    • Suspicious use of SetWindowsHookEx
                                                    PID:3652
                                                  • 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=1628,7240221852390346717,145154980018014808,131072 --lang=en-US --service-sandbox-type=none --mojo-platform-channel-handle=3368 /prefetch:8
                                                    2⤵
                                                    • Suspicious behavior: EnumeratesProcesses
                                                    PID:724
                                                  • 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=1628,7240221852390346717,145154980018014808,131072 --lang=en-US --service-sandbox-type=none --mojo-platform-channel-handle=5432 /prefetch:8
                                                    2⤵
                                                    • Modifies registry class
                                                    • Suspicious behavior: EnumeratesProcesses
                                                    • Suspicious use of SetWindowsHookEx
                                                    PID:768
                                                  • 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=1628,7240221852390346717,145154980018014808,131072 --lang=en-US --service-sandbox-type=utility --mojo-platform-channel-handle=4996 /prefetch:8
                                                    2⤵
                                                      PID:1808
                                                    • 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=1628,7240221852390346717,145154980018014808,131072 --lang=en-US --service-sandbox-type=utility --mojo-platform-channel-handle=1600 /prefetch:8
                                                      2⤵
                                                        PID:480
                                                    • C:\Windows\System32\CompPkgSrv.exe
                                                      C:\Windows\System32\CompPkgSrv.exe -Embedding
                                                      1⤵
                                                        PID:1480
                                                      • C:\Windows\System32\svchost.exe
                                                        C:\Windows\System32\svchost.exe -k netsvcs -p -s BITS
                                                        1⤵
                                                          PID:1516
                                                        • C:\Windows\system32\NOTEPAD.EXE
                                                          "C:\Windows\system32\NOTEPAD.EXE" C:\Users\Admin\Desktop\_#ODZYSKAJ_PLIKI--.JEBAĆ_BYDGOSZCZ!!!.txt
                                                          1⤵
                                                            PID:3396

                                                          Network

                                                          MITRE ATT&CK Enterprise v6

                                                          Replay Monitor

                                                          Loading Replay Monitor...

                                                          Downloads

                                                          • memory/1516-147-0x000001E68B8D0000-0x000001E68B8D4000-memory.dmp

                                                            Filesize

                                                            16KB

                                                          • memory/2164-138-0x0000014FB0D90000-0x0000014FB0DA0000-memory.dmp

                                                            Filesize

                                                            64KB

                                                          • memory/2164-139-0x0000014FB3280000-0x0000014FB3284000-memory.dmp

                                                            Filesize

                                                            16KB

                                                          • memory/2164-137-0x0000014FB0B70000-0x0000014FB0B80000-memory.dmp

                                                            Filesize

                                                            64KB

                                                          • memory/4988-130-0x000000007537E000-0x000000007537F000-memory.dmp

                                                            Filesize

                                                            4KB

                                                          • memory/4988-136-0x0000000004D63000-0x0000000004D65000-memory.dmp

                                                            Filesize

                                                            8KB

                                                          • memory/4988-135-0x0000000004D60000-0x0000000004D61000-memory.dmp

                                                            Filesize

                                                            4KB

                                                          • memory/4988-134-0x0000000004B20000-0x0000000004B2A000-memory.dmp

                                                            Filesize

                                                            40KB

                                                          • memory/4988-133-0x0000000004B30000-0x0000000004BC2000-memory.dmp

                                                            Filesize

                                                            584KB

                                                          • memory/4988-132-0x0000000005040000-0x00000000055E4000-memory.dmp

                                                            Filesize

                                                            5.6MB

                                                          • memory/4988-131-0x0000000000150000-0x0000000000172000-memory.dmp

                                                            Filesize

                                                            136KB