Analysis

  • max time kernel
    149s
  • max time network
    150s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240508-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system
  • submitted
    21-05-2024 14:44

General

  • Target

    2024-05-21_3881be410c116d249a71a01c21c43706_bkransomware.exe

  • Size

    14.3MB

  • MD5

    3881be410c116d249a71a01c21c43706

  • SHA1

    f84d31e851abea66778e8294439dd523fa65bb74

  • SHA256

    6b5d86495c83f479aeed31a2ec72a0c4934666b48d93f3dd926d2bdf65acc9fb

  • SHA512

    be119cf0498876a1ab83fb8cdc27ec20f9f2bac5d5799c181dd01bf575b632d581a4b1049ef424ca463f1c4388abc93303222dd2b05472584226282184cb84f3

  • SSDEEP

    98304:JLZjmQzW5VPC0vwMdcqSB+cDR9s+kLefGWUsOkSVncYvoNeHm55UGsHaCIyTF558:J5A9wvqSv3KBRoRfodw/f7vNgeXSW0DU

Score
5/10

Malware Config

Signatures

  • Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs
  • Enumerates system info in registry 2 TTPs 3 IoCs
  • Modifies Internet Explorer settings 1 TTPs 1 IoCs
  • Modifies system certificate store 2 TTPs 3 IoCs
  • Suspicious behavior: EnumeratesProcesses 10 IoCs
  • Suspicious behavior: NtCreateUserProcessBlockNonMicrosoftBinary 8 IoCs
  • Suspicious use of FindShellTrayWindow 26 IoCs
  • Suspicious use of SendNotifyMessage 25 IoCs
  • Suspicious use of SetWindowsHookEx 6 IoCs
  • Suspicious use of WriteProcessMemory 64 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\2024-05-21_3881be410c116d249a71a01c21c43706_bkransomware.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-05-21_3881be410c116d249a71a01c21c43706_bkransomware.exe"
    1⤵
    • Suspicious use of NtSetInformationThreadHideFromDebugger
    • Modifies Internet Explorer settings
    • Modifies system certificate store
    • Suspicious use of FindShellTrayWindow
    • Suspicious use of SendNotifyMessage
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:60
    • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
      "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --single-argument https://playinfo.gomlab.com/ending_browser.gom?product=GOMPLAYER
      2⤵
      • Enumerates system info in registry
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious behavior: NtCreateUserProcessBlockNonMicrosoftBinary
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of SendNotifyMessage
      • Suspicious use of WriteProcessMemory
      PID:3228
      • 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,0x100,0xd4,0x104,0x7ff8102146f8,0x7ff810214708,0x7ff810214718
        3⤵
          PID:1420
        • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
          "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=gpu-process --field-trial-handle=2068,2719805803676045582,13009509792526091861,131072 --gpu-preferences=UAAAAAAAAADgAAAQAAAAAAAAAAAAAAAAAABgAAAAAAAwAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAHgAAAAAAAAAeAAAAAAAAAAoAAAABAAAACAAAAAAAAAAKAAAAAAAAAAwAAAAAAAAADgAAAAAAAAAEAAAAAAAAAAAAAAADQAAABAAAAAAAAAAAQAAAA0AAAAQAAAAAAAAAAQAAAANAAAAEAAAAAAAAAAHAAAADQAAAAgAAAAAAAAACAAAAAAAAAA= --mojo-platform-channel-handle=2104 /prefetch:2
          3⤵
            PID:3980
          • 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=2068,2719805803676045582,13009509792526091861,131072 --lang=en-US --service-sandbox-type=none --mojo-platform-channel-handle=2404 /prefetch:3
            3⤵
            • Suspicious behavior: EnumeratesProcesses
            PID:3968
          • 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=2068,2719805803676045582,13009509792526091861,131072 --lang=en-US --service-sandbox-type=utility --mojo-platform-channel-handle=2704 /prefetch:8
            3⤵
              PID:4880
            • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
              "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2068,2719805803676045582,13009509792526091861,131072 --lang=en-US --disable-client-side-phishing-detection --device-scale-factor=1 --num-raster-threads=4 --enable-main-frame-before-activation --renderer-client-id=6 --no-v8-untrusted-code-mitigations --mojo-platform-channel-handle=3372 /prefetch:1
              3⤵
                PID:4792
              • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2068,2719805803676045582,13009509792526091861,131072 --lang=en-US --disable-client-side-phishing-detection --device-scale-factor=1 --num-raster-threads=4 --enable-main-frame-before-activation --renderer-client-id=5 --no-v8-untrusted-code-mitigations --mojo-platform-channel-handle=3392 /prefetch:1
                3⤵
                  PID:1028
                • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                  "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2068,2719805803676045582,13009509792526091861,131072 --lang=en-US --disable-client-side-phishing-detection --device-scale-factor=1 --num-raster-threads=4 --enable-main-frame-before-activation --renderer-client-id=7 --no-v8-untrusted-code-mitigations --mojo-platform-channel-handle=4984 /prefetch:1
                  3⤵
                    PID:4552
                  • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                    "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2068,2719805803676045582,13009509792526091861,131072 --lang=en-US --disable-client-side-phishing-detection --device-scale-factor=1 --num-raster-threads=4 --enable-main-frame-before-activation --renderer-client-id=8 --no-v8-untrusted-code-mitigations --mojo-platform-channel-handle=4680 /prefetch:1
                    3⤵
                      PID:3172
                    • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                      "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2068,2719805803676045582,13009509792526091861,131072 --lang=en-US --disable-client-side-phishing-detection --device-scale-factor=1 --num-raster-threads=4 --enable-main-frame-before-activation --renderer-client-id=9 --no-v8-untrusted-code-mitigations --mojo-platform-channel-handle=5488 /prefetch:1
                      3⤵
                        PID:2996
                      • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                        "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2068,2719805803676045582,13009509792526091861,131072 --lang=en-US --disable-client-side-phishing-detection --instant-process --device-scale-factor=1 --num-raster-threads=4 --enable-main-frame-before-activation --renderer-client-id=10 --no-v8-untrusted-code-mitigations --mojo-platform-channel-handle=5508 /prefetch:1
                        3⤵
                          PID:2352
                        • 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=2068,2719805803676045582,13009509792526091861,131072 --lang=en-US --service-sandbox-type=none --mojo-platform-channel-handle=4648 /prefetch:8
                          3⤵
                            PID:816
                          • 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=2068,2719805803676045582,13009509792526091861,131072 --lang=en-US --service-sandbox-type=none --mojo-platform-channel-handle=4648 /prefetch:8
                            3⤵
                            • Suspicious behavior: EnumeratesProcesses
                            PID:3596
                          • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                            "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2068,2719805803676045582,13009509792526091861,131072 --lang=en-US --disable-client-side-phishing-detection --device-scale-factor=1 --num-raster-threads=4 --enable-main-frame-before-activation --renderer-client-id=12 --no-v8-untrusted-code-mitigations --mojo-platform-channel-handle=4820 /prefetch:1
                            3⤵
                              PID:3264
                            • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                              "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2068,2719805803676045582,13009509792526091861,131072 --lang=en-US --disable-client-side-phishing-detection --instant-process --device-scale-factor=1 --num-raster-threads=4 --enable-main-frame-before-activation --renderer-client-id=13 --no-v8-untrusted-code-mitigations --mojo-platform-channel-handle=4640 /prefetch:1
                              3⤵
                                PID:3760
                              • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                                "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=gpu-process --field-trial-handle=2068,2719805803676045582,13009509792526091861,131072 --disable-gpu-sandbox --use-gl=disabled --gpu-vendor-id=4318 --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=4176 /prefetch:2
                                3⤵
                                • Suspicious behavior: EnumeratesProcesses
                                PID:2116
                          • C:\Windows\System32\CompPkgSrv.exe
                            C:\Windows\System32\CompPkgSrv.exe -Embedding
                            1⤵
                              PID:4236
                            • C:\Windows\System32\CompPkgSrv.exe
                              C:\Windows\System32\CompPkgSrv.exe -Embedding
                              1⤵
                                PID:2232

                              Network

                              MITRE ATT&CK Enterprise v15

                              Replay Monitor

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                              Downloads

                              • C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data\Crashpad\settings.dat

                                Filesize

                                152B

                                MD5

                                439b5e04ca18c7fb02cf406e6eb24167

                                SHA1

                                e0c5bb6216903934726e3570b7d63295b9d28987

                                SHA256

                                247d0658695a1eb44924a32363906e37e9864ba742fe35362a71f3a520ad2654

                                SHA512

                                d0241e397060eebd4535197de4f1ae925aa88ae413a3a9ded6e856b356c4324dfd45dddfef9a536f04e4a258e8fe5dc1586d92d1d56b649f75ded8eddeb1f3e2

                              • C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data\Crashpad\settings.dat

                                Filesize

                                152B

                                MD5

                                a8e767fd33edd97d306efb6905f93252

                                SHA1

                                a6f80ace2b57599f64b0ae3c7381f34e9456f9d3

                                SHA256

                                c8077a9fc79e2691ef321d556c4ce9933ca0570f2bbaa32fa32999dfd5f908bb

                                SHA512

                                07b748582fe222795bce74919aa06e9a09025c14493edb6f3b1f112d9a97ac2225fe0904cac9adf2a62c98c42f7877076e409803014f0afd395f4cc8be207241

                              • C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data\Default\Code Cache\js\index-dir\temp-index

                                Filesize

                                216B

                                MD5

                                431514c4581d48eb22c77d8595008876

                                SHA1

                                0ccbae7a3980614a6e6aaa93ea0fbf00d4ab6baa

                                SHA256

                                e7a04f24db4b9dc313f90fac36ab773e02ee970170937659f348d43a7d30a341

                                SHA512

                                2561273609ff9114e266ceeb7fbbf3b68a79db6ef8915d33cd2ea269d98855fe0a3028f51d9d25ef626b2a9bde90ff00a9c566c9d0b9353967eab7acdea7fe8d

                              • C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data\Default\Network Persistent State

                                Filesize

                                1KB

                                MD5

                                8942b43785d22bc437f2488a1300e5c3

                                SHA1

                                4d3db8e04a4466a7b2dff2d07e09e5afc95c9961

                                SHA256

                                0c80de308137483050a6acec72c7145899f07a1e97c677c5e357de32e9946133

                                SHA512

                                3f95777898dca9fa3ef3b3839510272140ba6908e2873f3f5fb1e2593516633dc611763d4d2cf170c69b06a9583b1cfdea4a2bd56199cd86d2417c07327c7d3d

                              • C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data\Default\Preferences

                                Filesize

                                5KB

                                MD5

                                9c7f826777795aef18b42a6522b2735e

                                SHA1

                                cfcae8cafc3d14a867acf8b1a22046e700c1aaf0

                                SHA256

                                48f8f1736692f5e1c25bb90646b5cdf9ebbdb5eac9cbeb45c7607fe21982d344

                                SHA512

                                c52dd06fe2071bddcb5f53582088d3dcf5488e4e5f91be516a87c78361d61e43fbf6f5fcb41234cd2162d840ed8259743db9d07e1b835ed21350efbc2647db0b

                              • C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data\Default\Preferences

                                Filesize

                                6KB

                                MD5

                                a0db40c160a43115837d9fbe2f454098

                                SHA1

                                8fcce2806d064acf28436ff52b8afe134cdc35db

                                SHA256

                                6c0151e0f8c4a9a135f92f8c365c445fbb7105dbd49da058fc629ad1744dd9fe

                                SHA512

                                c80f702ca23959ac69a730a9ebf8cf7bb7406bbdc7f71f158c734cfe44ed7720d89e8f731d77570a6c6383f6af00e2da2b819cba53b17d81f48a89ac767e3665

                              • C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data\Default\data_reduction_proxy_leveldb\CURRENT

                                Filesize

                                16B

                                MD5

                                206702161f94c5cd39fadd03f4014d98

                                SHA1

                                bd8bfc144fb5326d21bd1531523d9fb50e1b600a

                                SHA256

                                1005a525006f148c86efcbfb36c6eac091b311532448010f70f7de9a68007167

                                SHA512

                                0af09f26941b11991c750d1a2b525c39a8970900e98cba96fd1b55dbf93fee79e18b8aab258f48b4f7bda40d059629bc7770d84371235cdb1352a4f17f80e145

                              • C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data\Default\data_reduction_proxy_leveldb\CURRENT

                                Filesize

                                16B

                                MD5

                                46295cac801e5d4857d09837238a6394

                                SHA1

                                44e0fa1b517dbf802b18faf0785eeea6ac51594b

                                SHA256

                                0f1bad70c7bd1e0a69562853ec529355462fcd0423263a3d39d6d0d70b780443

                                SHA512

                                8969402593f927350e2ceb4b5bc2a277f3754697c1961e3d6237da322257fbab42909e1a742e22223447f3a4805f8d8ef525432a7c3515a549e984d3eff72b23

                              • C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data\Local State

                                Filesize

                                11KB

                                MD5

                                d2aa7adb2bddbe1ad53fd25da8b08d90

                                SHA1

                                e597af8849e830414c6a8eac20c79b583f6b8863

                                SHA256

                                7bc7bf899685689f0fd40d84ef2d4d2d4423a9be14a395d89b061150d9e2529b

                                SHA512

                                2fa2d2ef8f80e496f844947742b0465ef6203a7519c9b2eeccbbd82773f86f1b6504be9c14722b95da8eabc16bda875e073885b8e998caa4b66e5bf2a118b66f

                              • \??\pipe\LOCAL\crashpad_3228_QWFKMXQOKXRBYSNY

                                MD5

                                d41d8cd98f00b204e9800998ecf8427e

                                SHA1

                                da39a3ee5e6b4b0d3255bfef95601890afd80709

                                SHA256

                                e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855

                                SHA512

                                cf83e1357eefb8bdf1542850d66d8007d620e4050b5715dc83f4a921d36ce9ce47d0d13c5d85f2b0ff8318d2877eec2f63b931bd47417a81a538327af927da3e

                              • memory/60-9-0x0000000004CC0000-0x0000000004CC1000-memory.dmp

                                Filesize

                                4KB