Windows 7 deprecation

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Analysis

  • max time kernel
    210s
  • max time network
    213s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240226-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
  • submitted
    09/04/2024, 19:40

General

  • Target

    https://dl.dropboxusercontent.com/scl/fi/aemjdq0ejt5gz34awvr8y/Tax_docs_2023.pdf.zip?rlkey=ny4lzf0xd5j7evt5a8ljii7hi&dl=0

Score
1/10

Malware Config

Signatures

  • Enumerates system info in registry 2 TTPs 3 IoCs
  • Modifies data under HKEY_USERS 2 IoCs
  • Modifies registry class 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 4 IoCs
  • Suspicious behavior: NtCreateUserProcessBlockNonMicrosoftBinary 11 IoCs
  • Suspicious use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of FindShellTrayWindow 40 IoCs
  • Suspicious use of SendNotifyMessage 24 IoCs
  • Suspicious use of WriteProcessMemory 64 IoCs

Processes

  • C:\Program Files\Google\Chrome\Application\chrome.exe
    "C:\Program Files\Google\Chrome\Application\chrome.exe" --disable-background-networking --disable-component-update --simulate-outdated-no-au='Tue, 31 Dec 2099 23:59:59 GMT' --single-argument https://dl.dropboxusercontent.com/scl/fi/aemjdq0ejt5gz34awvr8y/Tax_docs_2023.pdf.zip?rlkey=ny4lzf0xd5j7evt5a8ljii7hi&dl=0
    1⤵
    • Enumerates system info in registry
    • Modifies data under HKEY_USERS
    • Modifies registry class
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious behavior: NtCreateUserProcessBlockNonMicrosoftBinary
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of FindShellTrayWindow
    • Suspicious use of SendNotifyMessage
    • Suspicious use of WriteProcessMemory
    PID:2572
    • 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=106.0.5249.119 --initial-client-data=0xfc,0x100,0x104,0xd8,0x108,0x7ff9af7e9758,0x7ff9af7e9768,0x7ff9af7e9778
      2⤵
        PID:1948
      • C:\Program Files\Google\Chrome\Application\chrome.exe
        "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=gpu-process --gpu-preferences=UAAAAAAAAADgAAAYAAAAAAAAAAAAAAAAAABgAAAAAAAwAAAAAAAAAAAAAAAQAAAAAAAAAAAAAAAAAAAAAAAAAEgAAAAAAAAASAAAAAAAAAAYAAAAAgAAABAAAAAAAAAAGAAAAAAAAAAQAAAAAAAAAAAAAAAOAAAAEAAAAAAAAAABAAAADgAAAAgAAAAAAAAACAAAAAAAAAA= --mojo-platform-channel-handle=1656 --field-trial-handle=1876,i,14651518002746929934,17938469587911189856,131072 /prefetch:2
        2⤵
          PID:3124
        • C:\Program Files\Google\Chrome\Application\chrome.exe
          "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=utility --utility-sub-type=network.mojom.NetworkService --lang=en-US --service-sandbox-type=none --mojo-platform-channel-handle=2128 --field-trial-handle=1876,i,14651518002746929934,17938469587911189856,131072 /prefetch:8
          2⤵
            PID:4496
          • C:\Program Files\Google\Chrome\Application\chrome.exe
            "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=utility --utility-sub-type=storage.mojom.StorageService --lang=en-US --service-sandbox-type=utility --mojo-platform-channel-handle=2188 --field-trial-handle=1876,i,14651518002746929934,17938469587911189856,131072 /prefetch:8
            2⤵
              PID:4960
            • C:\Program Files\Google\Chrome\Application\chrome.exe
              "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=renderer --display-capture-permissions-policy-allowed --first-renderer-process --lang=en-US --device-scale-factor=1 --num-raster-threads=4 --enable-main-frame-before-activation --renderer-client-id=6 --mojo-platform-channel-handle=2920 --field-trial-handle=1876,i,14651518002746929934,17938469587911189856,131072 /prefetch:1
              2⤵
                PID:1056
              • C:\Program Files\Google\Chrome\Application\chrome.exe
                "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=renderer --display-capture-permissions-policy-allowed --lang=en-US --device-scale-factor=1 --num-raster-threads=4 --enable-main-frame-before-activation --renderer-client-id=5 --mojo-platform-channel-handle=2928 --field-trial-handle=1876,i,14651518002746929934,17938469587911189856,131072 /prefetch:1
                2⤵
                  PID:3564
                • C:\Program Files\Google\Chrome\Application\chrome.exe
                  "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=utility --utility-sub-type=chrome.mojom.ProcessorMetrics --lang=en-US --service-sandbox-type=none --mojo-platform-channel-handle=4824 --field-trial-handle=1876,i,14651518002746929934,17938469587911189856,131072 /prefetch:8
                  2⤵
                    PID:4668
                  • C:\Program Files\Google\Chrome\Application\chrome.exe
                    "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=utility --utility-sub-type=chrome.mojom.UtilWin --lang=en-US --service-sandbox-type=none --mojo-platform-channel-handle=5272 --field-trial-handle=1876,i,14651518002746929934,17938469587911189856,131072 /prefetch:8
                    2⤵
                      PID:4464
                    • C:\Program Files\Google\Chrome\Application\chrome.exe
                      "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=utility --utility-sub-type=quarantine.mojom.Quarantine --lang=en-US --service-sandbox-type=none --mojo-platform-channel-handle=5264 --field-trial-handle=1876,i,14651518002746929934,17938469587911189856,131072 /prefetch:8
                      2⤵
                        PID:2684
                      • C:\Program Files\Google\Chrome\Application\chrome.exe
                        "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=renderer --display-capture-permissions-policy-allowed --lang=en-US --device-scale-factor=1 --num-raster-threads=4 --enable-main-frame-before-activation --renderer-client-id=10 --mojo-platform-channel-handle=968 --field-trial-handle=1876,i,14651518002746929934,17938469587911189856,131072 /prefetch:1
                        2⤵
                          PID:3960
                        • C:\Program Files\Google\Chrome\Application\chrome.exe
                          "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=renderer --display-capture-permissions-policy-allowed --lang=en-US --device-scale-factor=1 --num-raster-threads=4 --enable-main-frame-before-activation --renderer-client-id=11 --mojo-platform-channel-handle=5364 --field-trial-handle=1876,i,14651518002746929934,17938469587911189856,131072 /prefetch:1
                          2⤵
                            PID:1232
                          • 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 --lang=en-US --service-sandbox-type=service --mojo-platform-channel-handle=5652 --field-trial-handle=1876,i,14651518002746929934,17938469587911189856,131072 /prefetch:8
                            2⤵
                              PID:3048
                            • 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 --lang=en-US --service-sandbox-type=service --mojo-platform-channel-handle=5792 --field-trial-handle=1876,i,14651518002746929934,17938469587911189856,131072 /prefetch:8
                              2⤵
                                PID:4796
                              • C:\Program Files\Google\Chrome\Application\chrome.exe
                                "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=renderer --display-capture-permissions-policy-allowed --lang=en-US --device-scale-factor=1 --num-raster-threads=4 --enable-main-frame-before-activation --renderer-client-id=14 --mojo-platform-channel-handle=5508 --field-trial-handle=1876,i,14651518002746929934,17938469587911189856,131072 /prefetch:1
                                2⤵
                                  PID:3416
                                • C:\Program Files\Google\Chrome\Application\chrome.exe
                                  "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=gpu-process --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=UAAAAAAAAADoAAAYAAAAAAAAAAAAAAAAAABgAAAAAAAwAAAAAAAAAAAAAACQAAAAAAAAAAAAAAAAAAAAAAAAAEgAAAAAAAAASAAAAAAAAAAYAAAAAgAAABAAAAAAAAAAGAAAAAAAAAAQAAAAAAAAAAAAAAAOAAAAEAAAAAAAAAABAAAADgAAAAgAAAAAAAAACAAAAAAAAAA= --mojo-platform-channel-handle=6028 --field-trial-handle=1876,i,14651518002746929934,17938469587911189856,131072 /prefetch:2
                                  2⤵
                                  • Suspicious behavior: EnumeratesProcesses
                                  PID:4304
                                • C:\Program Files\Google\Chrome\Application\chrome.exe
                                  "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=renderer --display-capture-permissions-policy-allowed --lang=en-US --device-scale-factor=1 --num-raster-threads=4 --enable-main-frame-before-activation --renderer-client-id=16 --mojo-platform-channel-handle=6052 --field-trial-handle=1876,i,14651518002746929934,17938469587911189856,131072 /prefetch:1
                                  2⤵
                                    PID:2292
                                  • C:\Program Files\Google\Chrome\Application\chrome.exe
                                    "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=renderer --display-capture-permissions-policy-allowed --lang=en-US --device-scale-factor=1 --num-raster-threads=4 --enable-main-frame-before-activation --renderer-client-id=17 --mojo-platform-channel-handle=3076 --field-trial-handle=1876,i,14651518002746929934,17938469587911189856,131072 /prefetch:1
                                    2⤵
                                      PID:2612
                                    • C:\Program Files\Google\Chrome\Application\chrome.exe
                                      "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=renderer --display-capture-permissions-policy-allowed --lang=en-US --device-scale-factor=1 --num-raster-threads=4 --enable-main-frame-before-activation --renderer-client-id=18 --mojo-platform-channel-handle=6004 --field-trial-handle=1876,i,14651518002746929934,17938469587911189856,131072 /prefetch:1
                                      2⤵
                                        PID:3524
                                      • C:\Program Files\Google\Chrome\Application\chrome.exe
                                        "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=renderer --display-capture-permissions-policy-allowed --lang=en-US --device-scale-factor=1 --num-raster-threads=4 --enable-main-frame-before-activation --renderer-client-id=19 --mojo-platform-channel-handle=6048 --field-trial-handle=1876,i,14651518002746929934,17938469587911189856,131072 /prefetch:1
                                        2⤵
                                          PID:232
                                        • C:\Program Files\Google\Chrome\Application\chrome.exe
                                          "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=renderer --display-capture-permissions-policy-allowed --lang=en-US --device-scale-factor=1 --num-raster-threads=4 --enable-main-frame-before-activation --renderer-client-id=20 --mojo-platform-channel-handle=2988 --field-trial-handle=1876,i,14651518002746929934,17938469587911189856,131072 /prefetch:1
                                          2⤵
                                            PID:4940
                                          • 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 --lang=en-US --service-sandbox-type=service --mojo-platform-channel-handle=6008 --field-trial-handle=1876,i,14651518002746929934,17938469587911189856,131072 /prefetch:8
                                            2⤵
                                              PID:4356
                                            • 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 --lang=en-US --service-sandbox-type=service --mojo-platform-channel-handle=4820 --field-trial-handle=1876,i,14651518002746929934,17938469587911189856,131072 /prefetch:8
                                              2⤵
                                                PID:4108
                                              • C:\Program Files\Google\Chrome\Application\chrome.exe
                                                "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=renderer --display-capture-permissions-policy-allowed --lang=en-US --device-scale-factor=1 --num-raster-threads=4 --enable-main-frame-before-activation --renderer-client-id=23 --mojo-platform-channel-handle=6044 --field-trial-handle=1876,i,14651518002746929934,17938469587911189856,131072 /prefetch:1
                                                2⤵
                                                  PID:3232
                                              • C:\Program Files\Google\Chrome\Application\106.0.5249.119\elevation_service.exe
                                                "C:\Program Files\Google\Chrome\Application\106.0.5249.119\elevation_service.exe"
                                                1⤵
                                                  PID:4044
                                                • C:\Windows\System32\rundll32.exe
                                                  C:\Windows\System32\rundll32.exe C:\Windows\System32\shell32.dll,SHCreateLocalServerRunDll {9aa46009-3ce0-458a-a354-715610a075e6} -Embedding
                                                  1⤵
                                                    PID:1944

                                                  Network

                                                  MITRE ATT&CK Enterprise v15

                                                  Replay Monitor

                                                  Loading Replay Monitor...

                                                  Downloads

                                                  • C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Default\Network\Network Persistent State

                                                    Filesize

                                                    761B

                                                    MD5

                                                    3eb428d27b458c1e665ee8e5c4ffa9a5

                                                    SHA1

                                                    cdbe926ae8335319da1f2edac7eb20af9bac56fb

                                                    SHA256

                                                    09f14748abaeb362ae7796f5f7aab77dba01a275a13c544be5493db108a5f272

                                                    SHA512

                                                    4daa68a0bdb3a42a60a9ad08f6a816eb58ef45c7f7e4056dde1513ece66699a9982e8fc6025aa0c9f36214542bb416260e57e28198957de5b4f5310558f8e16f

                                                  • C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Default\Network\Network Persistent State

                                                    Filesize

                                                    1KB

                                                    MD5

                                                    6c95c6a3bd32eb5f43c39bc5e5e08ca2

                                                    SHA1

                                                    9bd3c595a3e01915c0631cb01b879ad5c8211c34

                                                    SHA256

                                                    d428a2fe29ecc32b8897a151fb1de929054757a06b778e83473fd4ccfd0f0ba7

                                                    SHA512

                                                    36dfd0908d8921c5b4b30736f0b9d1c42bd8390faa2ad012144aa88a50ae1aeb15b07276b7485aeda7cca9d653a21e21515b2ba027a6f3dfeebad5d0428685c5

                                                  • C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Default\Network\TransportSecurity

                                                    Filesize

                                                    538B

                                                    MD5

                                                    15de12eb6b8ceb05b5dd681b4002d15e

                                                    SHA1

                                                    4988473ef66fd0feeda66b2fad7ed29525a5ec56

                                                    SHA256

                                                    7fa3a2fcc48469e03c44a14ec154d0ea76c673500d2a03a0ed1dea087611bcf3

                                                    SHA512

                                                    61fb861401cfe0f945ff19314cba827f5d98a0319cc441dfe42428bcb29c1e6db310cd509fb2f4c65e09fd70dc2437fc842f1ddbd38f60eebcb707e6e57a40cd

                                                  • C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Default\Network\TransportSecurity

                                                    Filesize

                                                    538B

                                                    MD5

                                                    5961a433ad9966c76b7577da2bed03fa

                                                    SHA1

                                                    ce3fe08c236d905cb0769c5d3c441df9fba39d0a

                                                    SHA256

                                                    8c25f90819d7d60ffa344578bd2ee904b9dbc9f68383e34d1c51a4d82c741efd

                                                    SHA512

                                                    0b44bac64d30de6150cb3bcf0dc285661e10fae3165dd75c32a34c0e68c6082fcbc5b4872db18000fb14df83a96b5950b9bb3f3c004bd0d757d04ea4c714b4f5

                                                  • C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Default\Network\TransportSecurity

                                                    Filesize

                                                    532B

                                                    MD5

                                                    6d3eed493d47503326e03a7e2a6fa605

                                                    SHA1

                                                    bb59df7aeecec447e6156f498ce1b4eb194640a4

                                                    SHA256

                                                    c6af12f3d54a76da3215a93e5b5ca8f715e08045da76089b94efdde63bac7a88

                                                    SHA512

                                                    545a7496f9e3f7ebad42a342a5fe4e047da022e77d3f44c6845ec7d26b330d9c594a69449577137e4d4f66cb34e75970a976a112149d1509431bb71205872d95

                                                  • C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Default\Preferences

                                                    Filesize

                                                    6KB

                                                    MD5

                                                    1de0240abf965e977d668b9b3dc3b786

                                                    SHA1

                                                    b8f50f167c6f87bfea2515dcbb452819c84309b7

                                                    SHA256

                                                    7a4728d7df6bc0ee5577b64a80ef80a6b2bc1d48684791d30776a93ddc5c203e

                                                    SHA512

                                                    ce86596cbc49423ec184608f62d7cbe9295e13f594bb5e4de1ffb3758a2b7cd46e667e6c7b99b6ba9bd01d17fd5341d3b53a44ce4dc2f79ff8455fb3949fee64

                                                  • C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Default\Preferences

                                                    Filesize

                                                    6KB

                                                    MD5

                                                    7e3bb3ec5d12810c89b32a2968fe21f3

                                                    SHA1

                                                    589482b70a44204697d05d44c96f0c7e6e97c7a9

                                                    SHA256

                                                    0654042e4313b7c7a65fbe64e9fb93cfd1fd117a1b4cfe5290d310245026dfae

                                                    SHA512

                                                    ba047beb2e8176dbbea70623a1d5ef9281017a92541e7253d1b0e5970a421a9af5869ec798c34c1bcda86eb317aaa5e00b5a950dec81f15fb53f05d0fe126b34

                                                  • C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Default\Preferences

                                                    Filesize

                                                    6KB

                                                    MD5

                                                    70f3240543b3259b6148402c8487b1d7

                                                    SHA1

                                                    444b0a3a5af6d406825ef879f15ce351f29ed0a9

                                                    SHA256

                                                    9ff700ed981657eb476fa43391b08e069501da603460b31e17d807f53111dbb4

                                                    SHA512

                                                    bdcd3e3bca421acf4ec8edb9386464ea4fdfac90cc67989d827cf5dc67498a20a48aa38ce441dec11d51046d3c1888d10ea3ad41602c6a976bf9ab10930a350e

                                                  • C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Local State

                                                    Filesize

                                                    128KB

                                                    MD5

                                                    d0267f3886da648bbb58992c9778c648

                                                    SHA1

                                                    2135de6628aae5c0972a9d27f979ed12bcd22fe0

                                                    SHA256

                                                    140e7246c67bdeeeee357156cd9d3c2991732f24ea78bd1e247c80b10a9788ca

                                                    SHA512

                                                    d4c1f78624e1f725258fe064b38e94aa5f4ab66bb4cc63714710a51252894adc989bef668896b86a2e19b5de64204a099c71cf5bd0f05e7049b0e427c8d792d8

                                                  • C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Local State

                                                    Filesize

                                                    128KB

                                                    MD5

                                                    ea43b3693393a9df532cf7832415ff50

                                                    SHA1

                                                    d81d76faeca7733e0e7033c5afb69e99aba9c884

                                                    SHA256

                                                    d3a34dfd74fe0653525d08c3c262052d45d03751409941695d49fd23041f4718

                                                    SHA512

                                                    fb8b5a7e3e248005a872ae477c5f8e63510f882d820ba46180d9f2ce32e257d66efc0ea9c30b2a95cd321957bdbeeeba6cb2c5ead0a0dd831dbb8c91425356bf

                                                  • C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Local State

                                                    Filesize

                                                    128KB

                                                    MD5

                                                    138f0808a32845c29e246852215db367

                                                    SHA1

                                                    8eca0b97fda14feea9ad468c2b74eb897ef48a45

                                                    SHA256

                                                    7b047501dcf52d2227b2229d9e00e78c83c959a6eb322b881ccd9ca75fb1e10b

                                                    SHA512

                                                    1255546ab4759fb46df395c577a1c95dfad9db5708eb82df35e1a262ed6844b57ec56e7a085154b869333e01dde5d58f5b87f20ae005f19ca4d4b516f3d7a9c6

                                                  • C:\Users\Admin\AppData\Local\Google\Chrome\User Data\persisted_first_party_sets.json

                                                    Filesize

                                                    2B

                                                    MD5

                                                    99914b932bd37a50b983c5e7c90ae93b

                                                    SHA1

                                                    bf21a9e8fbc5a3846fb05b4fa0859e0917b2202f

                                                    SHA256

                                                    44136fa355b3678a1146ad16f7e8649e94fb4fc21fe77e8310c060f61caaff8a

                                                    SHA512

                                                    27c74670adb75075fad058d5ceaf7b20c4e7786c83bae8a32f626f9782af34c9a33c2046ef60fd2a7878d378e29fec851806bbd9a67878f3a9f1cda4830763fd

                                                  • C:\Users\Admin\Downloads\Tax_docs_2023.pdf.zip

                                                    Filesize

                                                    52.0MB

                                                    MD5

                                                    a37afa1b4077ad691d53a1dffc978dac

                                                    SHA1

                                                    b8eed4c6f337a99345af9712af3195b3732a849e

                                                    SHA256

                                                    6fd0a21a24fe28473bf68c50270301586821b9510a01a42fec10c9ed6e21057d

                                                    SHA512

                                                    ea4aeb6c19f2a64945bd4e6bdc7501f5bb9ee4fb9c4d0aa7f215599a86c8fab1aa2979a3b6033c97447ec37e94fb0456ec10c98a3a24d72f9fb1f27dc5639d1f