Analysis

  • max time kernel
    149s
  • max time network
    149s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    11/11/2024, 12:30

General

  • Target

    2024-11-11_d4d8d97c253668da0a3156954fcaa380_bkransomware_floxif_hijackloader.exe

  • Size

    14.4MB

  • MD5

    d4d8d97c253668da0a3156954fcaa380

  • SHA1

    c4d9d6d3ddf675d0899ba7abad8e6f7c34cd756a

  • SHA256

    704f980fd23351d44ff8751a6fa161caf409639f6a46fac0e261e6b606967cfb

  • SHA512

    8a54a5dfca3c8bb0e21ba2ad3d5cbe425a40c9bddef1ba59daec6b5b9807c864c9ae59252e0a1b958bc5210a372494bee08383e24484fdd46e0e972e2737bf08

  • SSDEEP

    98304:8TatQIZETGdOfW0+bs0ZmjBjcaw2lsuze/iBXsLVMZHvOyGCPvPZODByQNdXCd00:86t30t0u/Zk28XCd0LWkVgeXSL

Malware Config

Signatures

  • Floxif family
  • Floxif, Floodfix

    Floxif aka FloodFix is a file-changing trojan and backdoor written in C++.

  • Detects Floxif payload 1 IoCs
  • Event Triggered Execution: AppInit DLLs 1 TTPs

    Adversaries may establish persistence and/or elevate privileges by executing malicious content triggered by AppInit DLLs loaded into processes.

  • A potential corporate email address has been identified in the URL: [email protected]
  • ACProtect 1.3x - 1.4x DLL software 1 IoCs

    Detects file using ACProtect software.

  • Loads dropped DLL 1 IoCs
  • Enumerates connected drives 3 TTPs 1 IoCs

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

  • Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs
  • UPX packed file 4 IoCs

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

  • Drops file in Program Files directory 2 IoCs
  • Browser Information Discovery 1 TTPs

    Enumerate browser information.

  • System Location Discovery: System Language Discovery 1 TTPs 1 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • Enumerates system info in registry 2 TTPs 3 IoCs
  • Modifies Internet Explorer settings 1 TTPs 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 12 IoCs
  • Suspicious behavior: NtCreateUserProcessBlockNonMicrosoftBinary 9 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 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\2024-11-11_d4d8d97c253668da0a3156954fcaa380_bkransomware_floxif_hijackloader.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-11-11_d4d8d97c253668da0a3156954fcaa380_bkransomware_floxif_hijackloader.exe"
    1⤵
    • Loads dropped DLL
    • Enumerates connected drives
    • Suspicious use of NtSetInformationThreadHideFromDebugger
    • Drops file in Program Files directory
    • System Location Discovery: System Language Discovery
    • Modifies Internet Explorer settings
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of FindShellTrayWindow
    • Suspicious use of SendNotifyMessage
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:748
    • 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:4948
      • 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,0x100,0xd4,0x104,0x7ff8db4446f8,0x7ff8db444708,0x7ff8db444718
        3⤵
          PID:2784
        • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
          "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=gpu-process --field-trial-handle=2032,10616516867711770505,2229785551179884561,131072 --gpu-preferences=UAAAAAAAAADgAAAQAAAAAAAAAAAAAAAAAABgAAAAAAAwAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAHgAAAAAAAAAeAAAAAAAAAAoAAAABAAAACAAAAAAAAAAKAAAAAAAAAAwAAAAAAAAADgAAAAAAAAAEAAAAAAAAAAAAAAADQAAABAAAAAAAAAAAQAAAA0AAAAQAAAAAAAAAAQAAAANAAAAEAAAAAAAAAAHAAAADQAAAAgAAAAAAAAACAAAAAAAAAA= --mojo-platform-channel-handle=2140 /prefetch:2
          3⤵
            PID:3608
          • 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=2032,10616516867711770505,2229785551179884561,131072 --lang=en-US --service-sandbox-type=none --mojo-platform-channel-handle=2192 /prefetch:3
            3⤵
            • Suspicious behavior: EnumeratesProcesses
            PID:2736
          • 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=2032,10616516867711770505,2229785551179884561,131072 --lang=en-US --service-sandbox-type=utility --mojo-platform-channel-handle=2780 /prefetch:8
            3⤵
              PID:1020
            • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
              "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2032,10616516867711770505,2229785551179884561,131072 --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=3296 /prefetch:1
              3⤵
                PID:3636
              • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2032,10616516867711770505,2229785551179884561,131072 --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=3324 /prefetch:1
                3⤵
                  PID:3396
                • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                  "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2032,10616516867711770505,2229785551179884561,131072 --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=4088 /prefetch:1
                  3⤵
                    PID:852
                  • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                    "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2032,10616516867711770505,2229785551179884561,131072 --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=5156 /prefetch:1
                    3⤵
                      PID:4724
                    • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                      "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2032,10616516867711770505,2229785551179884561,131072 --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=5316 /prefetch:1
                      3⤵
                        PID:4208
                      • 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=2032,10616516867711770505,2229785551179884561,131072 --lang=en-US --service-sandbox-type=none --mojo-platform-channel-handle=6204 /prefetch:8
                        3⤵
                          PID:2984
                        • 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=2032,10616516867711770505,2229785551179884561,131072 --lang=en-US --service-sandbox-type=none --mojo-platform-channel-handle=6204 /prefetch:8
                          3⤵
                          • Suspicious behavior: EnumeratesProcesses
                          PID:1248
                        • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                          "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2032,10616516867711770505,2229785551179884561,131072 --lang=en-US --disable-client-side-phishing-detection --device-scale-factor=1 --num-raster-threads=4 --enable-main-frame-before-activation --renderer-client-id=11 --no-v8-untrusted-code-mitigations --mojo-platform-channel-handle=5880 /prefetch:1
                          3⤵
                            PID:1324
                          • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                            "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2032,10616516867711770505,2229785551179884561,131072 --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=12 --no-v8-untrusted-code-mitigations --mojo-platform-channel-handle=5828 /prefetch:1
                            3⤵
                              PID:4360
                            • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                              "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2032,10616516867711770505,2229785551179884561,131072 --lang=en-US --disable-client-side-phishing-detection --device-scale-factor=1 --num-raster-threads=4 --enable-main-frame-before-activation --renderer-client-id=13 --no-v8-untrusted-code-mitigations --mojo-platform-channel-handle=5092 /prefetch:1
                              3⤵
                                PID:5036
                              • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                                "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2032,10616516867711770505,2229785551179884561,131072 --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=14 --no-v8-untrusted-code-mitigations --mojo-platform-channel-handle=5708 /prefetch:1
                                3⤵
                                  PID:4992
                                • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                                  "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=gpu-process --field-trial-handle=2032,10616516867711770505,2229785551179884561,131072 --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=2776 /prefetch:2
                                  3⤵
                                  • Suspicious behavior: EnumeratesProcesses
                                  PID:2328
                            • C:\Windows\System32\CompPkgSrv.exe
                              C:\Windows\System32\CompPkgSrv.exe -Embedding
                              1⤵
                                PID:4220
                              • C:\Windows\System32\CompPkgSrv.exe
                                C:\Windows\System32\CompPkgSrv.exe -Embedding
                                1⤵
                                  PID:3816

                                Network

                                      MITRE ATT&CK Enterprise v15

                                      Replay Monitor

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                                      Downloads

                                      • C:\Program Files\Common Files\System\symsrv.dll

                                        Filesize

                                        67KB

                                        MD5

                                        7574cf2c64f35161ab1292e2f532aabf

                                        SHA1

                                        14ba3fa927a06224dfe587014299e834def4644f

                                        SHA256

                                        de055a89de246e629a8694bde18af2b1605e4b9b493c7e4aef669dd67acf5085

                                        SHA512

                                        4db19f2d8d5bc1c7bbb812d3fa9c43b80fa22140b346d2760f090b73aed8a5177edb4bddc647a6ebd5a2db8565be5a1a36a602b0d759e38540d9a584ba5896ab

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

                                        Filesize

                                        152B

                                        MD5

                                        d22073dea53e79d9b824f27ac5e9813e

                                        SHA1

                                        6d8a7281241248431a1571e6ddc55798b01fa961

                                        SHA256

                                        86713962c3bb287964678b148ee08ea83fb83483dff8be91c8a6085ca560b2a6

                                        SHA512

                                        97152091ee24b6e713b8ec8123cb62511f8a7e8a6c6c3f2f6727d0a60497be28814613b476009b853575d4931e5df950e28a41afbf6707cb672206f1219c4413

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

                                        Filesize

                                        152B

                                        MD5

                                        bffcefacce25cd03f3d5c9446ddb903d

                                        SHA1

                                        8923f84aa86db316d2f5c122fe3874bbe26f3bab

                                        SHA256

                                        23e7cbbf64c81122c3cb30a0933c10a320e254447771737a326ce37a0694d405

                                        SHA512

                                        761dae5315b35ec0b2fe68019881397f5d2eadba3963aba79a89f8953a0cd705012d7faf3a204a5f36008926b9f614980e333351596b06ce7058d744345ce2e7

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

                                        Filesize

                                        912B

                                        MD5

                                        2afd54189a17473c33b600f14ecb4540

                                        SHA1

                                        41be6a02873ada0feae415b8b8af890b6194a974

                                        SHA256

                                        9056eb5c8a9a7394da86f67bac7b0bc078fd817b7ca34af27b89f4078489fcac

                                        SHA512

                                        b57ce9100fcbcf8d140187fa5c96c2b6e0449f8df681db2f3ead421da1e3a27e72ed26eafaba5c23065a097b4d3fefc643b2ce322c3e6c4d4fc79d8f18d71a25

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

                                        Filesize

                                        4KB

                                        MD5

                                        db643cf4260cb28166695e1cd2abff9b

                                        SHA1

                                        50056dfc53db5c327a3c47922f994d4a6b94a762

                                        SHA256

                                        bdcb5f651e49a273b69fc6a39007afc40cce0f5f9392c7350a5730fe728a8435

                                        SHA512

                                        89f971c49d4aba205fdb4be09eef73a534d38f55164b9f25a837aa2848766e6a04c8bc022ca8caf828d0a06eeb706a07cc4d41edf4d222383e64073660973f15

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

                                        Filesize

                                        5KB

                                        MD5

                                        f9ce546cf5a66c7bd09e64a285f0e552

                                        SHA1

                                        250c4566ceffc0b094e528a41296000dfb4b5c52

                                        SHA256

                                        25829ce0b4713a1c5bb6acb7abd425ff490b7647bb48b38a4456342f71cde049

                                        SHA512

                                        c694de5f637307695631cf0b1ec292e44ebd42bfa35fcdf447f58e8f03142e98c21bbc588588d84149cea90ca5688d7eef2984596f51e21c62fda7bbe3b68ef4

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

                                        Filesize

                                        9KB

                                        MD5

                                        37c1c7339def9cd643015b1c5a61e32b

                                        SHA1

                                        6f42f1c17fd45f662bde20e0f5f5ce6dad1fe16f

                                        SHA256

                                        b4bb958fd0625248e80c20503a0fd5ab3c4402f86b99837942388272d2edd331

                                        SHA512

                                        4de0e2e78bddcfe5447c88cb9372da1e7327bbaf2a246096e4d19e586acc42eef1e3f7336bcefcfd72aa6621437c037ea556dabdfdfdcbb302e5bd5b0621d523

                                      • C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data\Default\Service Worker\ScriptCache\index-dir\the-real-index

                                        Filesize

                                        72B

                                        MD5

                                        6a01cd51d0f8bae26500de4130fecc5b

                                        SHA1

                                        93ab4c5ed3b7bfad441102e97ab15299e9c1bc27

                                        SHA256

                                        19ebdb7df271d37fc046da1f8b41a4bb72b4bd55b79d80a90ef990b88ab594af

                                        SHA512

                                        fecd2fe768e8228b98df79ba0ddd43ac5595264ee30a1323737a1055c0efc42dd6ede04a797e284344e90d0f7a9bd70ccc440c79c3f7e4e345d9650cd3cfe19a

                                      • C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data\Default\Service Worker\ScriptCache\index-dir\the-real-index~RFe58340b.TMP

                                        Filesize

                                        48B

                                        MD5

                                        e817c5e10c50a4b5c3f15c1f51d50673

                                        SHA1

                                        055b7a564b20a546789a808214b5afe68917a3cd

                                        SHA256

                                        23665b4970c8d3ad23021735d9e25aab36242abc1f4a599f4c8bd92b1a837d13

                                        SHA512

                                        e9fe15e5d0df2aa4f6a76bc67e779eef3de79837f16abfe47e4e57a44300528292f3b4a11890c42c901f4c0db2191f56904d64123e716d8201a041e63de1c73c

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

                                        Filesize

                                        16B

                                        MD5

                                        6752a1d65b201c13b62ea44016eb221f

                                        SHA1

                                        58ecf154d01a62233ed7fb494ace3c3d4ffce08b

                                        SHA256

                                        0861415cada612ea5834d56e2cf1055d3e63979b69eb71d32ae9ae394d8306cd

                                        SHA512

                                        9cfd838d3fb570b44fc3461623ab2296123404c6c8f576b0de0aabd9a6020840d4c9125eb679ed384170dbcaac2fa30dc7fa9ee5b77d6df7c344a0aa030e0389

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

                                        Filesize

                                        10KB

                                        MD5

                                        b922fd30dcaa13007f8d9f2315a13da5

                                        SHA1

                                        d325849bbba0d8028164e5b94ee83e75193e255d

                                        SHA256

                                        53c335afea2df1c9392b8b2cd9a5e304235d93c3bae51b5b16c0a67f7fc5da14

                                        SHA512

                                        5c6e7afe16c926e60e10a5c220dcabf1903622ee32c8e527aa587267dd498059939e9a5b906c086c7c3c38882507625d37414c5dc4626f83720a4c08beeace6a

                                      • C:\Users\Admin\AppData\Local\Temp\A1D26E2\AC1EC442EC.tmp

                                        Filesize

                                        14.3MB

                                        MD5

                                        7740b91aa5877cd86117db93dc5b0426

                                        SHA1

                                        b02a401b86aaa41768a15e4f027dccb812341fb7

                                        SHA256

                                        44df3a987ad432ea7942d8923dd2a8e29f3204119274ace5b0c5181838557564

                                        SHA512

                                        88890d8956872c8369ed2b3ede2349ae7021a770182dc3904f1ed983ae006355067d294abd0c5d77fc40c20cbad9e33e76bb29fd4d778f11079926bbc58e810f

                                      • memory/748-3-0x0000000010000000-0x0000000010030000-memory.dmp

                                        Filesize

                                        192KB

                                      • memory/748-62-0x0000000000B50000-0x00000000019C4000-memory.dmp

                                        Filesize

                                        14.5MB

                                      • memory/748-64-0x0000000010000000-0x0000000010030000-memory.dmp

                                        Filesize

                                        192KB

                                      • memory/748-49-0x0000000000B50000-0x00000000019C4000-memory.dmp

                                        Filesize

                                        14.5MB

                                      • memory/748-51-0x0000000010000000-0x0000000010030000-memory.dmp

                                        Filesize

                                        192KB