Analysis

  • max time kernel
    31s
  • max time network
    17s
  • platform
    windows11-21h2_x64
  • resource
    win11-20240709-en
  • resource tags

    arch:x64arch:x86image:win11-20240709-enlocale:en-usos:windows11-21h2-x64system
  • submitted
    21/07/2024, 18:13

General

  • Target

    https://cdn.discordapp.com/attachments/1264644800993427510/1264644816805822464/BrowserDownloadsView.exe?ex=669e9fc4&is=669d4e44&hm=aea49c86cdb30b0e8623078a67be6103f471718730281bf73c84224d0c8f62c1&

Score
8/10

Malware Config

Signatures

  • Downloads MZ/PE file
  • Executes dropped EXE 1 IoCs
  • Reads user/profile data of web browsers 2 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s).

  • Enumerates system info in registry 2 TTPs 3 IoCs
  • NTFS ADS 2 IoCs
  • Suspicious behavior: EnumeratesProcesses 10 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious behavior: NtCreateUserProcessBlockNonMicrosoftBinary 7 IoCs
  • Suspicious use of FindShellTrayWindow 35 IoCs
  • Suspicious use of SendNotifyMessage 12 IoCs
  • Suspicious use of WriteProcessMemory 64 IoCs

Processes

  • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
    "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --single-argument https://cdn.discordapp.com/attachments/1264644800993427510/1264644816805822464/BrowserDownloadsView.exe?ex=669e9fc4&is=669d4e44&hm=aea49c86cdb30b0e8623078a67be6103f471718730281bf73c84224d0c8f62c1&
    1⤵
    • Enumerates system info in registry
    • NTFS ADS
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious behavior: NtCreateUserProcessBlockNonMicrosoftBinary
    • Suspicious use of FindShellTrayWindow
    • Suspicious use of SendNotifyMessage
    • Suspicious use of WriteProcessMemory
    PID:2924
    • 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=90.0.4430.212 "--annotation=exe=C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --annotation=plat=Win64 "--annotation=prod=Microsoft Edge" --annotation=ver=90.0.818.66 --initial-client-data=0x100,0x104,0x108,0xdc,0x10c,0x7ffb3cbe3cb8,0x7ffb3cbe3cc8,0x7ffb3cbe3cd8
      2⤵
        PID:4900
      • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
        "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=gpu-process --field-trial-handle=1952,10887660258656486895,15499917481401431305,131072 --gpu-preferences=SAAAAAAAAADgAAAwAAAAAAAAAAAAAAAAAABgAAAAAAAoAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAB4AAAAAAAAAHgAAAAAAAAAKAAAAAQAAAAgAAAAAAAAACgAAAAAAAAAMAAAAAAAAAA4AAAAAAAAABAAAAAAAAAAAAAAAAUAAAAQAAAAAAAAAAAAAAAGAAAAEAAAAAAAAAABAAAABQAAABAAAAAAAAAAAQAAAAYAAAAIAAAAAAAAAAgAAAAAAAAA --mojo-platform-channel-handle=1976 /prefetch:2
        2⤵
          PID:3596
        • 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=1952,10887660258656486895,15499917481401431305,131072 --lang=en-US --service-sandbox-type=none --mojo-platform-channel-handle=2028 /prefetch:3
          2⤵
          • Suspicious behavior: EnumeratesProcesses
          PID:1996
        • 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=1952,10887660258656486895,15499917481401431305,131072 --lang=en-US --service-sandbox-type=utility --mojo-platform-channel-handle=2612 /prefetch:8
          2⤵
            PID:1852
          • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
            "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=1952,10887660258656486895,15499917481401431305,131072 --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=3228 /prefetch:1
            2⤵
              PID:4924
            • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
              "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=1952,10887660258656486895,15499917481401431305,131072 --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=3244 /prefetch:1
              2⤵
                PID:4632
              • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=1952,10887660258656486895,15499917481401431305,131072 --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=5016 /prefetch:1
                2⤵
                  PID:1712
                • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                  "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=chrome.mojom.UtilReadIcon --field-trial-handle=1952,10887660258656486895,15499917481401431305,131072 --lang=en-US --service-sandbox-type=icon_reader --mojo-platform-channel-handle=5440 /prefetch:8
                  2⤵
                    PID:1096
                  • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                    "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=1952,10887660258656486895,15499917481401431305,131072 --lang=en-US --disable-client-side-phishing-detection --device-scale-factor=1 --num-raster-threads=4 --enable-main-frame-before-activation --renderer-client-id=10 --no-v8-untrusted-code-mitigations --mojo-platform-channel-handle=5232 /prefetch:1
                    2⤵
                      PID:4656
                    • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                      "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=1952,10887660258656486895,15499917481401431305,131072 --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=11 --no-v8-untrusted-code-mitigations --mojo-platform-channel-handle=5288 /prefetch:1
                      2⤵
                        PID:4640
                      • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                        "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=chrome.mojom.UtilWin --field-trial-handle=1952,10887660258656486895,15499917481401431305,131072 --lang=en-US --service-sandbox-type=none --mojo-platform-channel-handle=5352 /prefetch:8
                        2⤵
                        • Suspicious behavior: EnumeratesProcesses
                        PID:2768
                      • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                        "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=1952,10887660258656486895,15499917481401431305,131072 --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=4980 /prefetch:1
                        2⤵
                          PID:3728
                        • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                          "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=1952,10887660258656486895,15499917481401431305,131072 --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=5728 /prefetch:1
                          2⤵
                            PID:644
                          • C:\Program Files (x86)\Microsoft\Edge\Application\90.0.818.66\identity_helper.exe
                            "C:\Program Files (x86)\Microsoft\Edge\Application\90.0.818.66\identity_helper.exe" --type=utility --utility-sub-type=winrt_app_id.mojom.WinrtAppIdService --field-trial-handle=1952,10887660258656486895,15499917481401431305,131072 --lang=en-US --service-sandbox-type=none --mojo-platform-channel-handle=5512 /prefetch:8
                            2⤵
                            • Suspicious behavior: EnumeratesProcesses
                            PID:3488
                          • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                            "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=quarantine.mojom.Quarantine --field-trial-handle=1952,10887660258656486895,15499917481401431305,131072 --lang=en-US --service-sandbox-type=none --mojo-platform-channel-handle=5800 /prefetch:8
                            2⤵
                            • NTFS ADS
                            • Suspicious behavior: EnumeratesProcesses
                            PID:1488
                          • C:\Users\Admin\Downloads\BrowserDownloadsView.exe
                            "C:\Users\Admin\Downloads\BrowserDownloadsView.exe"
                            2⤵
                            • Executes dropped EXE
                            • Suspicious behavior: GetForegroundWindowSpam
                            PID:2224
                        • C:\Windows\System32\CompPkgSrv.exe
                          C:\Windows\System32\CompPkgSrv.exe -Embedding
                          1⤵
                            PID:1948
                          • C:\Windows\System32\CompPkgSrv.exe
                            C:\Windows\System32\CompPkgSrv.exe -Embedding
                            1⤵
                              PID:752

                            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

                                    f1d33f465a73554cd1c183cbcd0a28a2

                                    SHA1

                                    f5c16fc4edff600cb307f762d950500aa29a1e8b

                                    SHA256

                                    22d8c228cdcfd3e05431d7377748014035a3488ad3a0d4aecc334e724245a1f9

                                    SHA512

                                    7cc94f77f3943143ee86eabbfddcb110ce52c6ff0975842e3a3d06072f51f2c48914ee61f24484a539888ad19a7e6a1becfb029485cd5984bc736434a63cee95

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

                                    Filesize

                                    152B

                                    MD5

                                    575466f58c7d9d3224035d23f102d140

                                    SHA1

                                    2fce4082fa83534b3ddc91e42fb242baee4afa1c

                                    SHA256

                                    9da0e657652daa1ef86af7c3db62b0af9cce372a5f765c98c68479922ccf1923

                                    SHA512

                                    06503e718fe967076dd8a061b57debdc663b9616b005f8567099a84fc7184880633079335d622c243918efc3356b40e683708fb0583084abeed7db6168a212ab

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

                                    Filesize

                                    116KB

                                    MD5

                                    420d63a49ed95aa020d7abcddc2e0ae2

                                    SHA1

                                    3d13a3bc1a27c2c6893cc51bf49c19c1fda42cd1

                                    SHA256

                                    add260e46e2c7975ba09eaf032eac864f9c5ee5476a32ef3d994a328b6fc13cb

                                    SHA512

                                    536e275f114d414ef0be044c9bf211b260d5d492a39d460beb57c00208035f9ff4f51cf02b9c116791b327925be0e9ef9671435b6990abe88f3521b64147901a

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

                                    Filesize

                                    5KB

                                    MD5

                                    9efe99b263c2a0d8649ee2baea0dd1e7

                                    SHA1

                                    422254f7befb603941a7e7e6819f80e26e459d64

                                    SHA256

                                    5751aa59607ba3aa0a46fab051fc99926729b9423df86f3693268972ac92e682

                                    SHA512

                                    d4be851b798304c824aadd1a103245eeb58e6138694446f6091c3158b6d51fe0baf5ea6ac8d86ff3612f5f393c13e3ea81890fadccdea9ffd319a4309f13a2b7

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

                                    Filesize

                                    5KB

                                    MD5

                                    ffc46fb68a228b624225c0d21b01591b

                                    SHA1

                                    91c57fdf7ce9490e43703e99054c485c27a0f9dd

                                    SHA256

                                    2891117d180de32e13516456dff85b596ede8a85caec0f7aefffc186da92bdb7

                                    SHA512

                                    e214c3b691399e659ece6c59895069e7458e5f0e19c386a825757e67abb04c1b84bc1b86059f249072f4af7f3dbb1d3e893a1466939b522cc5392a137b00c866

                                  • 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\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\Local State

                                    Filesize

                                    11KB

                                    MD5

                                    7827960516c6413c6c762c84ca2cf33e

                                    SHA1

                                    46587c5b32ba7605625cbe0c1837be5ad3c5ecb2

                                    SHA256

                                    338ae93545f80c8a70fa4a46d9642c4bca9628d94f8fa6a0138aa8019de7baad

                                    SHA512

                                    bba4c585a57fa425edd9670142fddffe0bc83e74d0983d531c8a1f9bed3c160a9942cbc2d35c3a0dee2437cbd4257d5a36d4694aa33c3b64b9d9b7b0fdcd8cab

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

                                    Filesize

                                    11KB

                                    MD5

                                    ec36246ee37a31c811ab1e9df38fb264

                                    SHA1

                                    b279456c902002ccebff0eaa5667756ce75fda25

                                    SHA256

                                    7aeadc6ba52955d53e0fdc765db8588d13aeec7379cc6ca167ed30b6aea9643e

                                    SHA512

                                    f5731eb6c1b5ac29afd14be62e75267f21a70d22258334abe282b25120c43b06e369bde8e0c947f2dce0a7878429d5337cf04b2ba87e18629dbd69fec46e1601

                                  • C:\Users\Admin\Downloads\BrowserDownloadsView.exe:Zone.Identifier

                                    Filesize

                                    232B

                                    MD5

                                    df485ead23fc1de15f0aca439d2cb32c

                                    SHA1

                                    b96b233c3578338d740a3f9718a8f83ea7316778

                                    SHA256

                                    00fba22616f095d06363038af7c785eb21979b2556a91559049089f35ac9655b

                                    SHA512

                                    500e90912a010892e77b5ef51215947bed9806367f09bca473d4eed82c6ddd6edc27d22fa1fdd94fb52e7a6eb623c1e63eed3f65147e399aad6f975dac464d0e

                                  • C:\Users\Admin\Downloads\Unconfirmed 371915.crdownload

                                    Filesize

                                    475KB

                                    MD5

                                    32d8860e3ad7c0040f3bc37a32aa64da

                                    SHA1

                                    b15b8fbe5e68d7e340e4ad8c7c101a024363a86e

                                    SHA256

                                    4a506d6fe197eb77e2c5620503fcf2f0594b007498d29fda12942399363a1033

                                    SHA512

                                    5742e84c8071bb08b00c54b305662d9b76c12019efcbd5714b52cc1095d9b0ceba2d49be63b01d3c593508c62af8f1788facc070fd1725d0f6dc3011bedd2ab0