Analysis

  • max time kernel
    83s
  • max time network
    75s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240611-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240611-enlocale:en-usos:windows10-2004-x64system
  • submitted
    12-06-2024 06:40

General

  • Target

    https://github.com/quivings/Solara/raw/main/Files/SolaraB.zip

Malware Config

Signatures

  • Identifies VirtualBox via ACPI registry values (likely anti-VM) 2 TTPs 1 IoCs
  • Checks BIOS information in registry 2 TTPs 2 IoCs

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

  • Executes dropped EXE 1 IoCs
  • Loads dropped DLL 5 IoCs
  • Themida packer 6 IoCs

    Detects Themida, an advanced Windows software protection system.

  • Checks whether UAC is enabled 1 TTPs 1 IoCs
  • Legitimate hosting services abused for malware hosting/C2 1 TTPs 5 IoCs
  • Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs
  • Enumerates system info in registry 2 TTPs 3 IoCs
  • Modifies data under HKEY_USERS 1 IoCs
  • Modifies registry class 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 5 IoCs
  • Suspicious behavior: NtCreateUserProcessBlockNonMicrosoftBinary 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of FindShellTrayWindow 33 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Files\Google\Chrome\Application\chrome.exe" --disable-background-networking --disable-component-update --simulate-outdated-no-au='Tue, 31 Dec 2099 23:59:59 GMT' --single-argument https://github.com/quivings/Solara/raw/main/Files/SolaraB.zip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:4428
    • 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=110.0.5481.104 --initial-client-data=0xfc,0x100,0x104,0xd8,0x108,0x7ffa0680ab58,0x7ffa0680ab68,0x7ffa0680ab78
      2⤵
        PID:2008
      • 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=1788 --field-trial-handle=1864,i,2594787736419791377,3963590569414166601,131072 /prefetch:2
        2⤵
          PID:2100
        • 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=2172 --field-trial-handle=1864,i,2594787736419791377,3963590569414166601,131072 /prefetch:8
          2⤵
            PID:2280
          • 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=service --mojo-platform-channel-handle=2240 --field-trial-handle=1864,i,2594787736419791377,3963590569414166601,131072 /prefetch:8
            2⤵
              PID:1636
            • C:\Program Files\Google\Chrome\Application\chrome.exe
              "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=renderer --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=3068 --field-trial-handle=1864,i,2594787736419791377,3963590569414166601,131072 /prefetch:1
              2⤵
                PID:5080
              • C:\Program Files\Google\Chrome\Application\chrome.exe
                "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=renderer --lang=en-US --device-scale-factor=1 --num-raster-threads=4 --enable-main-frame-before-activation --renderer-client-id=5 --mojo-platform-channel-handle=3096 --field-trial-handle=1864,i,2594787736419791377,3963590569414166601,131072 /prefetch:1
                2⤵
                  PID:1936
                • 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=4688 --field-trial-handle=1864,i,2594787736419791377,3963590569414166601,131072 /prefetch:8
                  2⤵
                    PID:1660
                  • 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=4700 --field-trial-handle=1864,i,2594787736419791377,3963590569414166601,131072 /prefetch:8
                    2⤵
                      PID:2308
                    • 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=4696 --field-trial-handle=1864,i,2594787736419791377,3963590569414166601,131072 /prefetch:8
                      2⤵
                        PID:3288
                      • 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=4936 --field-trial-handle=1864,i,2594787736419791377,3963590569414166601,131072 /prefetch:8
                        2⤵
                          PID:1664
                      • C:\Program Files\Google\Chrome\Application\110.0.5481.104\elevation_service.exe
                        "C:\Program Files\Google\Chrome\Application\110.0.5481.104\elevation_service.exe"
                        1⤵
                          PID:1988
                        • C:\Windows\System32\rundll32.exe
                          C:\Windows\System32\rundll32.exe C:\Windows\System32\shell32.dll,SHCreateLocalServerRunDll {9aa46009-3ce0-458a-a354-715610a075e6} -Embedding
                          1⤵
                            PID:4304
                          • C:\Users\Admin\Downloads\SolaraB\SolaraB\Solara\SolaraBootstrapper.exe
                            "C:\Users\Admin\Downloads\SolaraB\SolaraB\Solara\SolaraBootstrapper.exe"
                            1⤵
                            • Suspicious behavior: EnumeratesProcesses
                            PID:2076
                            • C:\Users\Admin\AppData\Local\Temp\Solara.Dir\cd57e4c171d6e8f5ea8b8f824a6a7316.exe
                              "C:\Users\Admin\AppData\Local\Temp\Solara.Dir\cd57e4c171d6e8f5ea8b8f824a6a7316.exe"
                              2⤵
                              • Identifies VirtualBox via ACPI registry values (likely anti-VM)
                              • Checks BIOS information in registry
                              • Executes dropped EXE
                              • Loads dropped DLL
                              • Checks whether UAC is enabled
                              • Suspicious use of NtSetInformationThreadHideFromDebugger
                              PID:2440

                          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

                            1KB

                            MD5

                            88b409523976d4058d76a812dbea751a

                            SHA1

                            8dd0fcc44dfd7a0d598c6fdbd695d7dcd41e4f3f

                            SHA256

                            b8888cd141540e7595216f9f5d4000336d3dbd6e869c67454245c8fe3338a0b6

                            SHA512

                            3b1db3e7c3c2fdbbbcf6cf56adb5f6ca12d025482c1f37a11e23d9763c4ce00b0beecf9479c54cb79a7906659ba593a2c40f56963e996fb23453a0ca1a8e3840

                          • C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Default\Network\SCT Auditing Pending Reports

                            Filesize

                            2B

                            MD5

                            d751713988987e9331980363e24189ce

                            SHA1

                            97d170e1550eee4afc0af065b78cda302a97674c

                            SHA256

                            4f53cda18c2baa0c0354bb5f9a3ecbe5ed12ab4d8e11ba873c2f11161202b945

                            SHA512

                            b25b294cb4deb69ea00a4c3cf3113904801b6015e5956bd019a8570b1fe1d6040e944ef3cdee16d0a46503ca6e659a25f21cf9ceddc13f352a3c98138c15d6af

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

                            Filesize

                            691B

                            MD5

                            2e6ad0e3abf2fb2a4b59a4242dbb46fb

                            SHA1

                            ea4fc63fcacb6854a0d08b2ead46c3e1e0bd8684

                            SHA256

                            877e87a03996507cf86757f6bde49918653c49551ccba72900381ce094943eea

                            SHA512

                            fb8f32fc9fedb3fe0b55b2a4d9ad8c7192724bf4ebe2d9d83c2b71506e0fbec8ec0343934e311c601fa41fda36692e0e21eeff7e67203f508f77b2c2d779a4a9

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

                            Filesize

                            6KB

                            MD5

                            90acda0adb7a64b8515c5537a36f35de

                            SHA1

                            8e100655e5f76890e352efd00020593ddc26604f

                            SHA256

                            5a2ade5668e809829636c3dc5f60607022bae07888bc71533eaa380383213504

                            SHA512

                            2d49729b232b3a7a746fbab40d7b177b33f183a5185b3d143dd15f6dbe068f396e95caa2bf9c446652359694166fc84fac642b509070edd156dcd4c820c811cf

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

                            Filesize

                            138KB

                            MD5

                            8ab7979bc28a7285148b228478c32878

                            SHA1

                            59ef7392f42f50d257571ea818d6ded990e89741

                            SHA256

                            7acb5a8bda0167f095fdebac8d2a5f1e7999b12de12bb921c763b2889f603511

                            SHA512

                            4d2ee7f7060baa5c7c970fe968bd4788b6ea9a83ca98e312c968ecbd13e94d9ea6386512481d21e1be898d3308ec9c34987997e02aeb10fb2465f7b1f0ae9d18

                          • C:\Users\Admin\AppData\Local\Temp\Solara.Dir\Microsoft.Web.WebView2.Core.dll

                            Filesize

                            488KB

                            MD5

                            851fee9a41856b588847cf8272645f58

                            SHA1

                            ee185a1ff257c86eb19d30a191bf0695d5ac72a1

                            SHA256

                            5e7faee6b8230ca3b97ce9542b914db3abbbd1cb14fd95a39497aaad4c1094ca

                            SHA512

                            cf5c70984cf33e12cf57116da1f282a5bd6433c570831c185253d13463b0b9a0b9387d4d1bf4dddab3292a5d9ba96d66b6812e9d7ebc5eb35cb96eea2741348f

                          • C:\Users\Admin\AppData\Local\Temp\Solara.Dir\Microsoft.Web.WebView2.Wpf.dll

                            Filesize

                            43KB

                            MD5

                            34ec990ed346ec6a4f14841b12280c20

                            SHA1

                            6587164274a1ae7f47bdb9d71d066b83241576f0

                            SHA256

                            1e987b22cd011e4396a0805c73539586b67df172df75e3dded16a77d31850409

                            SHA512

                            b565015ca4b11b79ecbc8127f1fd40c986948050f1caefdd371d34ed2136af0aabf100863dc6fd16d67e3751d44ee13835ea9bf981ac0238165749c4987d1ae0

                          • C:\Users\Admin\AppData\Local\Temp\Solara.Dir\Monaco\fileaccess\node_modules\get-intrinsic\.nycrc

                            Filesize

                            139B

                            MD5

                            d0104f79f0b4f03bbcd3b287fa04cf8c

                            SHA1

                            54f9d7adf8943cb07f821435bb269eb4ba40ccc2

                            SHA256

                            997785c50b0773e5e18bf15550fbf57823c634fefe623cd37b3c83696402ad0a

                            SHA512

                            daf9b5445cfc02397f398adfa0258f2489b70699dfec6ca7e5b85afe5671fdcabe59edee332f718f5e5778feb1e301778dffe93bb28c1c0914f669659bad39c6

                          • C:\Users\Admin\AppData\Local\Temp\Solara.Dir\Monaco\fileaccess\node_modules\has-proto\.eslintrc

                            Filesize

                            43B

                            MD5

                            c28b0fe9be6e306cc2ad30fe00e3db10

                            SHA1

                            af79c81bd61c9a937fca18425dd84cdf8317c8b9

                            SHA256

                            0694050195fc694c5846b0a2a66b437ac775da988f0a779c55fb892597f7f641

                            SHA512

                            e3eca17804522ffa4f41e836e76e397a310a20e8261a38115b67e8b644444153039d04198fb470f45be2997d2c7a72b15bd4771a02c741b3cbc072ea6ef432e9

                          • C:\Users\Admin\AppData\Local\Temp\Solara.Dir\Monaco\fileaccess\node_modules\hasown\.nycrc

                            Filesize

                            216B

                            MD5

                            c2ab942102236f987048d0d84d73d960

                            SHA1

                            95462172699187ac02eaec6074024b26e6d71cff

                            SHA256

                            948366fea3b423a46366326d0bb2e54b08abd1cf0b243678ba6625740c40da5a

                            SHA512

                            e36b20c16ceeb090750f3865efc8d7fd983ae4e8b41c30cc3865d2fd4925bf5902627e1f1ed46c0ff2453f076ef9de34be899ef57754b29cd158440071318479

                          • C:\Users\Admin\AppData\Local\Temp\Solara.Dir\Monaco\fileaccess\node_modules\vary\LICENSE

                            Filesize

                            1KB

                            MD5

                            13babc4f212ce635d68da544339c962b

                            SHA1

                            4881ad2ec8eb2470a7049421047c6d076f48f1de

                            SHA256

                            bd47ce7b88c7759630d1e2b9fcfa170a0f1fde522be09e13fb1581a79d090400

                            SHA512

                            40e30174433408e0e2ed46d24373b12def47f545d9183b7bce28d4ddd8c8bb528075c7f20e118f37661db9f1bba358999d81a14425eb3e0a4a20865dfcb53182

                          • C:\Users\Admin\AppData\Local\Temp\Solara.Dir\WebView2Loader.dll

                            Filesize

                            133KB

                            MD5

                            a0bd0d1a66e7c7f1d97aedecdafb933f

                            SHA1

                            dd109ac34beb8289030e4ec0a026297b793f64a3

                            SHA256

                            79d7e45f8631e8d2541d01bfb5a49a3a090be72b3d465389a2d684680fee2e36

                            SHA512

                            2a50ae5c7234a44b29f82ebc2e3cfed37bf69294eb00b2dc8905c61259975b2f3a059c67aeab862f002752454d195f7191d9b82b056f6ef22d6e1b0bb3673d50

                          • C:\Users\Admin\AppData\Local\Temp\Solara.Dir\Wpf.Ui.dll

                            Filesize

                            5.2MB

                            MD5

                            aead90ab96e2853f59be27c4ec1e4853

                            SHA1

                            43cdedde26488d3209e17efff9a51e1f944eb35f

                            SHA256

                            46cfbe804b29c500ebc0b39372e64c4c8b4f7a8e9b220b5f26a9adf42fcb2aed

                            SHA512

                            f5044f2ee63906287460b9adabfcf3c93c60b51c86549e33474c4d7f81c4f86cd03cd611df94de31804c53006977874b8deb67c4bf9ea1c2b70c459b3a44b38d

                          • C:\Users\Admin\AppData\Local\Temp\Solara.Dir\bin\path.txt

                            Filesize

                            48B

                            MD5

                            be2a7d7f566380c227aee6c9352ba882

                            SHA1

                            b8b1236b1ce17f295b2780622cad96f4a1694b46

                            SHA256

                            fa95da2b65d081614dc31c4ec93f5443a42fca6f0fec3552d341b7588cd0a0e6

                            SHA512

                            771cacef95bf3f9564fa59f72654e269b280b08ed388910c60d911a5a265c3ccdadb75060e502981301c38041eb25d7097731901aa431822f47208d10a73c67b

                          • C:\Users\Admin\AppData\Local\Temp\Solara.Dir\cd57e4c171d6e8f5ea8b8f824a6a7316.dll

                            Filesize

                            4.3MB

                            MD5

                            8518e81caa4b5a961656b687300b64f3

                            SHA1

                            3079b0a84cca1f8b270a331c68cf0c134f42aedf

                            SHA256

                            4179c99032b9698a74a0b395541b8a7124531ecc053428fae0916a02b78364e1

                            SHA512

                            20a99e88e1657ca41ba7ecf31e4a1fff56b721dfa55b7a10531715bb674ab11abfa08c5e7d53ce9cef78cf63bcc3248e8131ca5674d8169d7ac4ac8f0a1385bf

                          • C:\Users\Admin\AppData\Local\Temp\Solara.Dir\cd57e4c171d6e8f5ea8b8f824a6a7316.exe

                            Filesize

                            85KB

                            MD5

                            15cdabcecc4ae0ec3253b1625156b0a7

                            SHA1

                            fa1b2c6a2be53578ef278706cdee6f725e00b003

                            SHA256

                            6dbcc562d627628e45187afbd2421be88797e20e36910393a883e361973da553

                            SHA512

                            c9a1740bf5fed7cbc6d91ab92222b178fe4a8ab2d75dd8f18d827046bab88d7632b0751e953e77e29aaf9a9bf390697e94f23e172cfe034a4263bcf7c7149106

                          • C:\Users\Admin\AppData\Local\Temp\Solara.Dir\libcurl.dll

                            Filesize

                            522KB

                            MD5

                            e31f5136d91bad0fcbce053aac798a30

                            SHA1

                            ee785d2546aec4803bcae08cdebfd5d168c42337

                            SHA256

                            ee94e2201870536522047e6d7fe7b903a63cd2e13e20c8fffc86d0e95361e671

                            SHA512

                            a1543eb1d10d25efb44f9eaa0673c82bfac5173055d04c0f3be4792984635a7c774df57a8e289f840627754a4e595b855d299070d469e0f1e637c3f35274abe6

                          • C:\Users\Admin\AppData\Local\Temp\Solara.Dir\vcruntime140.dll

                            Filesize

                            99KB

                            MD5

                            7a2b8cfcd543f6e4ebca43162b67d610

                            SHA1

                            c1c45a326249bf0ccd2be2fbd412f1a62fb67024

                            SHA256

                            7d7ca28235fba5603a7f40514a552ac7efaa67a5d5792bb06273916aa8565c5f

                            SHA512

                            e38304fb9c5af855c1134f542adf72cde159fab64385533eafa5bb6e374f19b5a29c0cb5516fc5da5c0b5ac47c2f6420792e0ac8ddff11e749832a7b7f3eb5c8

                          • C:\Users\Admin\AppData\Local\Temp\Solara.Dir\zlib1.dll

                            Filesize

                            113KB

                            MD5

                            75365924730b0b2c1a6ee9028ef07685

                            SHA1

                            a10687c37deb2ce5422140b541a64ac15534250f

                            SHA256

                            945e7f5d09938b7769a4e68f4ef01406e5af9f40db952cba05ddb3431dd1911b

                            SHA512

                            c1e31c18903e657203ae847c9af601b1eb38efa95cb5fa7c1b75f84a2cba9023d08f1315c9bb2d59b53256dfdb3bac89930252138475491b21749471adc129a1

                          • memory/2076-75-0x00000000746C0000-0x0000000074E70000-memory.dmp

                            Filesize

                            7.7MB

                          • memory/2076-72-0x00000000746CE000-0x00000000746CF000-memory.dmp

                            Filesize

                            4KB

                          • memory/2076-73-0x0000000000A90000-0x0000000000A9A000-memory.dmp

                            Filesize

                            40KB

                          • memory/2076-1545-0x00000000746C0000-0x0000000074E70000-memory.dmp

                            Filesize

                            7.7MB

                          • memory/2076-74-0x0000000002DE0000-0x0000000002DEA000-memory.dmp

                            Filesize

                            40KB

                          • memory/2076-77-0x0000000005F50000-0x0000000005F62000-memory.dmp

                            Filesize

                            72KB

                          • memory/2440-1544-0x00007FF9EF323000-0x00007FF9EF325000-memory.dmp

                            Filesize

                            8KB

                          • memory/2440-1580-0x0000000180000000-0x0000000180B19000-memory.dmp

                            Filesize

                            11.1MB

                          • memory/2440-1546-0x000001CEE6550000-0x000001CEE656A000-memory.dmp

                            Filesize

                            104KB

                          • memory/2440-1578-0x0000000180000000-0x0000000180B19000-memory.dmp

                            Filesize

                            11.1MB

                          • memory/2440-1551-0x000001CEE8260000-0x000001CEE826E000-memory.dmp

                            Filesize

                            56KB

                          • memory/2440-1549-0x000001CEE8CC0000-0x000001CEE8D7A000-memory.dmp

                            Filesize

                            744KB

                          • memory/2440-1581-0x0000000180000000-0x0000000180B19000-memory.dmp

                            Filesize

                            11.1MB

                          • memory/2440-1553-0x000001CEE8E80000-0x000001CEE8EFE000-memory.dmp

                            Filesize

                            504KB

                          • memory/2440-1548-0x000001CEE9050000-0x000001CEE958C000-memory.dmp

                            Filesize

                            5.2MB

                          • memory/2440-1579-0x0000000180000000-0x0000000180B19000-memory.dmp

                            Filesize

                            11.1MB

                          • memory/2440-1583-0x000001CEED680000-0x000001CEED688000-memory.dmp

                            Filesize

                            32KB

                          • memory/2440-1585-0x000001CEEDC60000-0x000001CEEDC6E000-memory.dmp

                            Filesize

                            56KB

                          • memory/2440-1584-0x000001CEEDC90000-0x000001CEEDCC8000-memory.dmp

                            Filesize

                            224KB

                          • memory/2440-1587-0x00007FFA02020000-0x00007FFA02044000-memory.dmp

                            Filesize

                            144KB

                          • memory/2440-1586-0x0000000180000000-0x0000000180B19000-memory.dmp

                            Filesize

                            11.1MB