Analysis

  • max time kernel
    145s
  • max time network
    133s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240508-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system
  • submitted
    05/06/2024, 16:32

General

  • Target

    SolaraB/SolaraB/Solara/SolaraBootstrapper.exe

  • Size

    13KB

  • MD5

    6557bd5240397f026e675afb78544a26

  • SHA1

    839e683bf68703d373b6eac246f19386bb181713

  • SHA256

    a7fecfc225dfdd4e14dcd4d1b4ba1b9f8e4d1984f1cdd8cda3a9987e5d53c239

  • SHA512

    f2399d34898a4c0c201372d2dd084ee66a66a1c3eae949e568421fe7edada697468ef81f4fcab2afd61eaf97bcb98d6ade2d97295e2f674e93116d142e892e97

  • SSDEEP

    192:konexQO0FoAWyEfJkVIaqaLHmr/XKT0ifnTJ1jvVXctNjA:HnexHAWyEfJoIaqayzKAifd1LVEj

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.

  • Checks computer location settings 2 TTPs 1 IoCs

    Looks up country code configured in the registry, likely geofence.

  • Executes dropped EXE 1 IoCs
  • Loads dropped DLL 5 IoCs
  • Themida packer 20 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 3 IoCs
  • Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 2 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\SolaraB\SolaraB\Solara\SolaraBootstrapper.exe
    "C:\Users\Admin\AppData\Local\Temp\SolaraB\SolaraB\Solara\SolaraBootstrapper.exe"
    1⤵
    • Checks computer location settings
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2348
    • 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:460
  • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
    "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --no-appcompat-clear --field-trial-handle=4000,i,1999448010053300448,1112699187621658374,262144 --variations-seed-version --mojo-platform-channel-handle=4004 /prefetch:8
    1⤵
      PID:2720

    Network

          MITRE ATT&CK Enterprise v15

          Replay Monitor

          Loading Replay Monitor...

          Downloads

          • 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\VCRUNTIME140.dll

            Filesize

            99KB

            MD5

            7a2b8cfcd543f6e4ebca43162b67d610

            SHA1

            c1c45a326249bf0ccd2be2fbd412f1a62fb67024

            SHA256

            7d7ca28235fba5603a7f40514a552ac7efaa67a5d5792bb06273916aa8565c5f

            SHA512

            e38304fb9c5af855c1134f542adf72cde159fab64385533eafa5bb6e374f19b5a29c0cb5516fc5da5c0b5ac47c2f6420792e0ac8ddff11e749832a7b7f3eb5c8

          • 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

            57B

            MD5

            2c33f834d8069a3eea7cf0e403ab478e

            SHA1

            dac6acfad049a4e79049b1001f2e98c80ad813f9

            SHA256

            3139e57111fb559bde38ff8b7a25d6776a3731fe7419d44040eac4c0829a054d

            SHA512

            11788279930c4718d20b856748c4db0b6d64f368aea93753819da9f5a95a4a2f649912bef5c1b279a34ad3c8b6e9d1f5c879172356d41d82d99f93249f8280d6

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

            Filesize

            5.7MB

            MD5

            24aa3e78e168caf7e55d15ce92ba4602

            SHA1

            8b8131bb552d45c7ac79624d95bc97e6d97ed5ea

            SHA256

            f1d385290c5d8c2bf35b270d0681a3fabf6b428563afaf7ce8cc45cfbd19a8b1

            SHA512

            74d9c6833f7bc5f26bbd941588a5d5d676f8db9ff097f24a4082d58be068f7c2c35c799687083a00e685346b881034eb8d98b24b68ec5019ec9967b0b2e2febf

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

            Filesize

            85KB

            MD5

            f8f4522d11178a26e97e2046f249dfa7

            SHA1

            8b591d9a37716e235260fb6b3f601e4ccbebf15d

            SHA256

            3c372a8919c28dc76414b2f30da423c3e1018b1a8444527949ce20cc3fc93ed0

            SHA512

            52ea881cad501cf1d5e8ac47355e862ac1bd39cb6e1ff3d362d392b6f2d676e74878832505d17a552aaa3bc8f3977da11fa3f9903722eedd23716fb46ddb7492

          • 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\zlib1.dll

            Filesize

            113KB

            MD5

            75365924730b0b2c1a6ee9028ef07685

            SHA1

            a10687c37deb2ce5422140b541a64ac15534250f

            SHA256

            945e7f5d09938b7769a4e68f4ef01406e5af9f40db952cba05ddb3431dd1911b

            SHA512

            c1e31c18903e657203ae847c9af601b1eb38efa95cb5fa7c1b75f84a2cba9023d08f1315c9bb2d59b53256dfdb3bac89930252138475491b21749471adc129a1

          • memory/460-1490-0x0000000180000000-0x0000000180DE1000-memory.dmp

            Filesize

            13.9MB

          • memory/460-1508-0x00007FFFE3D90000-0x00007FFFE4851000-memory.dmp

            Filesize

            10.8MB

          • memory/460-1475-0x00000241669F0000-0x0000024166AAA000-memory.dmp

            Filesize

            744KB

          • memory/460-1474-0x0000024166E40000-0x000002416737C000-memory.dmp

            Filesize

            5.2MB

          • memory/460-1477-0x0000024166AB0000-0x0000024166B2E000-memory.dmp

            Filesize

            504KB

          • memory/460-1479-0x000002414DFD0000-0x000002414DFDE000-memory.dmp

            Filesize

            56KB

          • memory/460-1529-0x0000000180000000-0x0000000180DE1000-memory.dmp

            Filesize

            13.9MB

          • memory/460-1470-0x000002414C240000-0x000002414C25A000-memory.dmp

            Filesize

            104KB

          • memory/460-1469-0x00007FFFE3D93000-0x00007FFFE3D95000-memory.dmp

            Filesize

            8KB

          • memory/460-1527-0x0000000180000000-0x0000000180DE1000-memory.dmp

            Filesize

            13.9MB

          • memory/460-1525-0x0000000180000000-0x0000000180DE1000-memory.dmp

            Filesize

            13.9MB

          • memory/460-1523-0x0000000180000000-0x0000000180DE1000-memory.dmp

            Filesize

            13.9MB

          • memory/460-1521-0x0000000180000000-0x0000000180DE1000-memory.dmp

            Filesize

            13.9MB

          • memory/460-1492-0x0000000180000000-0x0000000180DE1000-memory.dmp

            Filesize

            13.9MB

          • memory/460-1491-0x0000000180000000-0x0000000180DE1000-memory.dmp

            Filesize

            13.9MB

          • memory/460-1493-0x0000000180000000-0x0000000180DE1000-memory.dmp

            Filesize

            13.9MB

          • memory/460-1519-0x0000000180000000-0x0000000180DE1000-memory.dmp

            Filesize

            13.9MB

          • memory/460-1495-0x00000241668C0000-0x00000241668C8000-memory.dmp

            Filesize

            32KB

          • memory/460-1497-0x0000024166DF0000-0x0000024166DFE000-memory.dmp

            Filesize

            56KB

          • memory/460-1496-0x00000241676B0000-0x00000241676E8000-memory.dmp

            Filesize

            224KB

          • memory/460-1498-0x00007FFFE3D90000-0x00007FFFE4851000-memory.dmp

            Filesize

            10.8MB

          • memory/460-1499-0x0000000180000000-0x0000000180DE1000-memory.dmp

            Filesize

            13.9MB

          • memory/460-1500-0x00007FFFF5F30000-0x00007FFFF5F54000-memory.dmp

            Filesize

            144KB

          • memory/460-1501-0x0000000180000000-0x0000000180DE1000-memory.dmp

            Filesize

            13.9MB

          • memory/460-1503-0x00007FFFE3D93000-0x00007FFFE3D95000-memory.dmp

            Filesize

            8KB

          • memory/460-1504-0x00007FFFE3D90000-0x00007FFFE4851000-memory.dmp

            Filesize

            10.8MB

          • memory/460-1505-0x0000000180000000-0x0000000180DE1000-memory.dmp

            Filesize

            13.9MB

          • memory/460-1506-0x0000000180000000-0x0000000180DE1000-memory.dmp

            Filesize

            13.9MB

          • memory/460-1473-0x00007FFFE3D90000-0x00007FFFE4851000-memory.dmp

            Filesize

            10.8MB

          • memory/460-1509-0x0000000180000000-0x0000000180DE1000-memory.dmp

            Filesize

            13.9MB

          • memory/460-1511-0x0000000180000000-0x0000000180DE1000-memory.dmp

            Filesize

            13.9MB

          • memory/460-1513-0x0000000180000000-0x0000000180DE1000-memory.dmp

            Filesize

            13.9MB

          • memory/460-1515-0x0000000180000000-0x0000000180DE1000-memory.dmp

            Filesize

            13.9MB

          • memory/460-1517-0x0000000180000000-0x0000000180DE1000-memory.dmp

            Filesize

            13.9MB

          • memory/2348-1-0x0000000000030000-0x000000000003A000-memory.dmp

            Filesize

            40KB

          • memory/2348-0-0x0000000074F4E000-0x0000000074F4F000-memory.dmp

            Filesize

            4KB

          • memory/2348-2-0x00000000048C0000-0x00000000048CA000-memory.dmp

            Filesize

            40KB

          • memory/2348-3-0x0000000074F40000-0x00000000756F0000-memory.dmp

            Filesize

            7.7MB

          • memory/2348-5-0x00000000053C0000-0x00000000053D2000-memory.dmp

            Filesize

            72KB

          • memory/2348-1471-0x0000000074F40000-0x00000000756F0000-memory.dmp

            Filesize

            7.7MB