Analysis

  • max time kernel
    67s
  • max time network
    67s
  • platform
    windows10-1703_x64
  • resource
    win10-20240404-en
  • resource tags

    arch:x64arch:x86image:win10-20240404-enlocale:en-usos:windows10-1703-x64system
  • submitted
    23/07/2024, 02:54

General

  • Target

    https://href.li/?https://onlineofficetutorials.com/download/fu11-insta11ation-classicvrs-009-BhRf.zip

Malware Config

Signatures

  • Executes dropped EXE 3 IoCs
  • Reads user/profile data of web browsers 2 TTPs

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

  • Checks installed software on the system 1 TTPs

    Looks up Uninstall key entries in the registry to enumerate software on the system.

  • Legitimate hosting services abused for malware hosting/C2 1 TTPs 2 IoCs
  • Checks processor information in registry 2 TTPs 2 IoCs

    Processor information is often read in order to detect sandboxing environments.

  • Enumerates system info in registry 2 TTPs 3 IoCs
  • Modifies data under HKEY_USERS 2 IoCs
  • Modifies registry class 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious behavior: NtCreateUserProcessBlockNonMicrosoftBinary 3 IoCs
  • Suspicious use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of FindShellTrayWindow 53 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Files\Google\Chrome\Application\chrome.exe" --disable-background-networking --disable-component-update --simulate-outdated-no-au='Tue, 31 Dec 2099 23:59:59 GMT' --single-argument https://href.li/?https://onlineofficetutorials.com/download/fu11-insta11ation-classicvrs-009-BhRf.zip
    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:4988
    • 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=0xcc,0xd0,0xd4,0xa8,0xd8,0x7ff902d99758,0x7ff902d99768,0x7ff902d99778
      2⤵
        PID:2072
      • 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=1612 --field-trial-handle=1824,i,9396911954743439088,10045780783235057641,131072 /prefetch:2
        2⤵
          PID:220
        • 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=1788 --field-trial-handle=1824,i,9396911954743439088,10045780783235057641,131072 /prefetch:8
          2⤵
            PID:500
          • 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=2072 --field-trial-handle=1824,i,9396911954743439088,10045780783235057641,131072 /prefetch:8
            2⤵
              PID:1392
            • 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=2840 --field-trial-handle=1824,i,9396911954743439088,10045780783235057641,131072 /prefetch:1
              2⤵
                PID:5088
              • 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=2852 --field-trial-handle=1824,i,9396911954743439088,10045780783235057641,131072 /prefetch:1
                2⤵
                  PID:1736
                • 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=7 --mojo-platform-channel-handle=4308 --field-trial-handle=1824,i,9396911954743439088,10045780783235057641,131072 /prefetch:1
                  2⤵
                    PID:4356
                  • 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=5044 --field-trial-handle=1824,i,9396911954743439088,10045780783235057641,131072 /prefetch:8
                    2⤵
                      PID:1956
                    • 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=5136 --field-trial-handle=1824,i,9396911954743439088,10045780783235057641,131072 /prefetch:8
                      2⤵
                        PID:4220
                      • 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=4820 --field-trial-handle=1824,i,9396911954743439088,10045780783235057641,131072 /prefetch:8
                        2⤵
                          PID:440
                      • 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:1468
                        • C:\Windows\System32\rundll32.exe
                          C:\Windows\System32\rundll32.exe C:\Windows\System32\shell32.dll,SHCreateLocalServerRunDll {9aa46009-3ce0-458a-a354-715610a075e6} -Embedding
                          1⤵
                            PID:1784
                          • C:\Program Files\7-Zip\7zG.exe
                            "C:\Program Files\7-Zip\7zG.exe" x -o"C:\Users\Admin\Downloads\" -an -ai#7zMap17327:136:7zEvent13039
                            1⤵
                            • Suspicious use of AdjustPrivilegeToken
                            • Suspicious use of FindShellTrayWindow
                            PID:4212
                          • C:\Program Files\7-Zip\7zG.exe
                            "C:\Program Files\7-Zip\7zG.exe" x -o"C:\Users\Admin\Downloads\file$_here\" -an -ai#7zMap8593:116:7zEvent19358
                            1⤵
                            • Suspicious use of AdjustPrivilegeToken
                            • Suspicious use of FindShellTrayWindow
                            PID:1140
                          • C:\Users\Admin\Downloads\file$_here\Set-up.exe
                            "C:\Users\Admin\Downloads\file$_here\Set-up.exe"
                            1⤵
                            • Executes dropped EXE
                            • Checks processor information in registry
                            PID:4936
                          • C:\Users\Admin\Downloads\file$_here\Set-up.exe
                            "C:\Users\Admin\Downloads\file$_here\Set-up.exe"
                            1⤵
                            • Executes dropped EXE
                            PID:5104
                          • C:\Users\Admin\Downloads\file$_here\Set-up.exe
                            "C:\Users\Admin\Downloads\file$_here\Set-up.exe"
                            1⤵
                            • Executes dropped EXE
                            PID:4224

                          Network

                          MITRE ATT&CK Enterprise v15

                          Replay Monitor

                          Loading Replay Monitor...

                          Downloads

                          • C:\Users\Admin\AppData\Local\Google\Chrome\User Data\758c95a1-05da-4841-8f62-6a336638e549.tmp

                            Filesize

                            2B

                            MD5

                            99914b932bd37a50b983c5e7c90ae93b

                            SHA1

                            bf21a9e8fbc5a3846fb05b4fa0859e0917b2202f

                            SHA256

                            44136fa355b3678a1146ad16f7e8649e94fb4fc21fe77e8310c060f61caaff8a

                            SHA512

                            27c74670adb75075fad058d5ceaf7b20c4e7786c83bae8a32f626f9782af34c9a33c2046ef60fd2a7878d378e29fec851806bbd9a67878f3a9f1cda4830763fd

                          • C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Default\Network\98750c81-7a5a-4c0c-85c1-b78ab37c4877.tmp

                            Filesize

                            1018B

                            MD5

                            5ea1ffc74d253812f560a5cc782a00f4

                            SHA1

                            1f0cfd14789f825e49bfd51e09c56f7191858873

                            SHA256

                            e263d122d8a4895a8156507984c1618b6e0ed39b84d3a87312de51df466a3c57

                            SHA512

                            f64a19631a46145a86bcc2032b5799464459bbc3e32138618a49f24ba47b405d7c5b57a0994e27c40d7da83c06d81e03a3149cf977b198a2113c4c8188b78658

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

                            Filesize

                            20KB

                            MD5

                            d28f07fe2ba5b2a2c01320f8be33daa6

                            SHA1

                            7995a77d943cfef6402d6409cb3da7d433bdbcb8

                            SHA256

                            5bedbe2c3587039641f5abc6b6772a36b236c183a9655edc07a8bbd5e201094b

                            SHA512

                            266a31b72eb915551b38b9c4d732b920e73b3447bdf6356b1304f7a1b3bafc9e1e78f32a29ba83ca52d41ee0e4a4f8f9475c5f54747e859dabe3aaa84e82fbc6

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

                            Filesize

                            1018B

                            MD5

                            b4404558b2b10c5aa1e82af4fb14d109

                            SHA1

                            04c30b65f1706bafdaf9395cb57084945a2d495d

                            SHA256

                            38df4e384a6f334a24bf6d51a220e8d8c65914f3eefcf6012beb4071167c9666

                            SHA512

                            e0e612ecbd043af7f098ce78153088d712cfaad36c863a17dafda5003ed6dbe3d9a4bd114ee2fadfe59acab431f46210d98d1930ec8617998bbe5309e95789fc

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

                            Filesize

                            539B

                            MD5

                            c1adbd6aeda666fc7f7ed5d97dd9215e

                            SHA1

                            f748c080b0132067a399b7f4317f0e0399dd7c9d

                            SHA256

                            61b55c5fc89fc2bf25d95d79d6abb286f69af589de7318eddd2bbd70a16cc48c

                            SHA512

                            fa7bd002b4c57f1a2cfceb1588fd0c57e9714367940afc82f9d228b14e0268e3b8b3696302f726af5d094d6a37eb2a38e77cb98f84883776988c2d738c3c71f9

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

                            Filesize

                            5KB

                            MD5

                            ebb74c3a1c1208a2a3d529c0d7e0798d

                            SHA1

                            941b0edc8e344e195d5b7068edc471fd55b1a89f

                            SHA256

                            bd56b22daf61124e2a3fd42d7c8667c739b15ef502dbbfd626cd6714630903fe

                            SHA512

                            841e9191fb49e17b7ee7b548485f59a4cb331277d5338f849ee3a947e365af04110e955aeadc81b087ec99766b3496e333838ce57504a7dd37b42e6763f6f405

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

                            Filesize

                            5KB

                            MD5

                            c9797a6a93be159f1a434109d151f65d

                            SHA1

                            e322c000053080a39eb0193240610a2548c75fab

                            SHA256

                            8cefa6dc379c6a49fc6cb34b6a9b75c3d4590b2970cdcb465032b0a7ce3031f4

                            SHA512

                            3ff00ba5e2242f91a8b6212972fb7e7fd2284a09547836bb1f150b835d5617bed4951c4ad3a9e132b80528c7dcc343ab77a1cd8e510121f66cdea853058b2252

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

                            Filesize

                            6KB

                            MD5

                            a19a0acfaeee7808e50142f242cf5694

                            SHA1

                            0b7de340fc27379a93a35fa65de40d73fabd3aba

                            SHA256

                            bede3ac5abfbf8091824815bd5282ed6abdd457a7353684c9b7bcca7471a0dfa

                            SHA512

                            35974966a1b203f8a3d10f9ea52d2f23b040a145e7253fc04f23383384795a5bf3cfb21c21f11808a0de0e664dfe0b66c0645a293b910e11323934da68f34dad

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

                            Filesize

                            136KB

                            MD5

                            f0e400b993a41a777b702a1e60f5c8e2

                            SHA1

                            f04f966ef177c469dc5253f20db928d21868b77c

                            SHA256

                            2b853df2c3e8a546dde72f4ebe90a5625f6c9af49f18edc14d9a670262fb8a8a

                            SHA512

                            25da2c5b087be2064cccc2d90e112659430af217ee70987db96cabd07f2fe7cef903c7729323ceafd590c139ba483d4dea94d3dacbafad0ad0a1a95172266f09

                          • C:\Users\Admin\Downloads\file$_here\Set-up.exe

                            Filesize

                            2.5MB

                            MD5

                            05ab88429034c9e5200429f58e4143af

                            SHA1

                            470e94afc29fd1fe74df3b9f6b76f1e4881b791f

                            SHA256

                            8ae718ac4ca871ed2fd536383aba2400c2072a116343bdf8ef9b586cee999639

                            SHA512

                            adfbe53a277e82a06c97c52d30bafad6f6e3281dbd240afe04f762085b50c27e46af622458e5886ffe82876e3b7c8184cde338e687d9f4522718ff4663930a37

                          • C:\Users\Admin\Downloads\file$_here\use_2024_tо_оpen.rar

                            Filesize

                            13.8MB

                            MD5

                            2af20fb625aaf0febc5a026c80f8fc82

                            SHA1

                            c5dc0e1e1ad2eb905fd5985735b44f6b8b8b49fc

                            SHA256

                            78fd901b607e0998534df3835489af892bebde768ceb59ced9f4b364fbb936c1

                            SHA512

                            46edf02d47db1cd3070123ea48ec42d0186d8ce9ba58436adad3fa61f9cbfcadf1929e8c21d1c769746683dad87c578b5437eb545f482951cba9ffb95ff81d14

                          • C:\Users\Admin\Downloads\fu11-insta11ation-classicvrs-009-BhRf.zip.crdownload

                            Filesize

                            13.8MB

                            MD5

                            587573b4b90442e5c3df5c0a52f99d8b

                            SHA1

                            8759956b1846cf6d2830ad87d3394cea1c2faf9d

                            SHA256

                            f8768fdf81fa01b68e2a9d2e6f1019614df68a13f68ddf9f01d7da98cbd0154c

                            SHA512

                            1dd48fa54cb4c0a0dfdb064a453baf6a8760ee0e0cc13384f9b7486ace0588db2587f73460dd95f570b2ea34c4613967bc947ae4a12315ce92a9a53fc2f791ed

                          • memory/4224-401-0x0000000000400000-0x0000000000C32000-memory.dmp

                            Filesize

                            8.2MB

                          • memory/4936-402-0x0000000000400000-0x0000000000C32000-memory.dmp

                            Filesize

                            8.2MB

                          • memory/4936-405-0x0000000000400000-0x0000000000C32000-memory.dmp

                            Filesize

                            8.2MB

                          • memory/5104-399-0x0000000000400000-0x0000000000C32000-memory.dmp

                            Filesize

                            8.2MB