Analysis

  • max time kernel
    86s
  • max time network
    85s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240611-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240611-enlocale:en-usos:windows10-2004-x64system
  • submitted
    30-06-2024 18:29

General

  • Target

    SolaraBootstrapper(1).exe

  • Size

    13KB

  • MD5

    0cc81729f4bd4a6eac95cc442bc8df2a

  • SHA1

    5d5f367e720684dd64cfb5340d9911ec0782fdac

  • SHA256

    92960ae4a38d896418a14a1db5ba1547aa273443790e858d00dac4ce64550c2a

  • SHA512

    f6fc1fca47e4620e24652d8dc2aa88cdd7363172b31122c05d262349aeec88407a2b3fbbc4e4834c359960d4981fb9f674cfbfd9d5743dc917df72a3ebfb3c90

  • SSDEEP

    192:+ZnqvqiVx1BLO77IaqaLHmr/XKTxnTjw1hOPVXmNjA:0nCVxoIaqayzKtnw1h6VKj

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 13 IoCs

    Detects Themida, an advanced Windows software protection system.

  • Checks whether UAC is enabled 1 TTPs 1 IoCs
  • Enumerates connected drives 3 TTPs 1 IoCs

    Attempts to read the root path of hard drives other than the default C: drive.

  • Legitimate hosting services abused for malware hosting/C2 1 TTPs 4 IoCs
  • Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Checks SCSI registry key(s) 3 TTPs 7 IoCs

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

  • Checks processor information in registry 2 TTPs 2 IoCs

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

  • Opens file in notepad (likely ransom note) 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious use of AdjustPrivilegeToken 12 IoCs
  • Suspicious use of FindShellTrayWindow 46 IoCs
  • Suspicious use of SendNotifyMessage 43 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 2 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\SolaraBootstrapper(1).exe
    "C:\Users\Admin\AppData\Local\Temp\SolaraBootstrapper(1).exe"
    1⤵
    • Checks computer location settings
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2860
    • 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
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of FindShellTrayWindow
      PID:4812
  • C:\Windows\System32\WScript.exe
    "C:\Windows\System32\WScript.exe" "C:\Users\Admin\Desktop\CompareOpen.vbs"
    1⤵
      PID:452
    • C:\Windows\System32\Notepad.exe
      "C:\Windows\System32\Notepad.exe" C:\Users\Admin\Desktop\CompareOpen.vbs
      1⤵
      • Opens file in notepad (likely ransom note)
      • Suspicious use of FindShellTrayWindow
      PID:1080
    • C:\Windows\system32\taskmgr.exe
      "C:\Windows\system32\taskmgr.exe" /7
      1⤵
      • Checks SCSI registry key(s)
      • Checks processor information in registry
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of SendNotifyMessage
      PID:2852
    • C:\Windows\system32\SystemSettingsAdminFlows.exe
      "C:\Windows\system32\SystemSettingsAdminFlows.exe" FeaturedResetPC
      1⤵
      • Enumerates connected drives
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of SetWindowsHookEx
      PID:2612
    • C:\Windows\System32\vdsldr.exe
      C:\Windows\System32\vdsldr.exe -Embedding
      1⤵
        PID:4632
      • C:\Windows\System32\vds.exe
        C:\Windows\System32\vds.exe
        1⤵
        • Checks SCSI registry key(s)
        PID:1880

      Network

      MITRE ATT&CK Matrix ATT&CK v13

      Defense Evasion

      Virtualization/Sandbox Evasion

      1
      T1497

      Discovery

      Query Registry

      6
      T1012

      Virtualization/Sandbox Evasion

      1
      T1497

      System Information Discovery

      7
      T1082

      Peripheral Device Discovery

      2
      T1120

      Command and Control

      Web Service

      1
      T1102

      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.WinForms.dll
        Filesize

        37KB

        MD5

        4cf94ffa50fd9bdc0bb93cceaede0629

        SHA1

        3e30eca720f4c2a708ec53fd7f1ba9e778b4f95f

        SHA256

        50b2e46c99076f6fa9c33e0a98f0fe3a2809a7c647bb509066e58f4c7685d7e6

        SHA512

        dc400518ef2f68920d90f1ce66fbb8f4dde2294e0efeecd3d9329aa7a66e1ab53487b120e13e15f227ea51784f90208c72d7fbfa9330d9b71dd9a1a727d11f98

      • 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\Newtonsoft.Json.dll
        Filesize

        695KB

        MD5

        195ffb7167db3219b217c4fd439eedd6

        SHA1

        1e76e6099570ede620b76ed47cf8d03a936d49f8

        SHA256

        e1e27af7b07eeedf5ce71a9255f0422816a6fc5849a483c6714e1b472044fa9d

        SHA512

        56eb7f070929b239642dab729537dde2c2287bdb852ad9e80b5358c74b14bc2b2dded910d0e3b6304ea27eb587e5f19db0a92e1cbae6a70fb20b4ef05057e4ac

      • 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

        34B

        MD5

        0e2184f1c7464b6617329fb18f107b4f

        SHA1

        6f22f98471e33c9db10d6f6f1728e98852e25b8f

        SHA256

        dbf5f44e1b84a298dbbcad3c31a617d2f6cfa08eb5d16e05a5c28726c574d4eb

        SHA512

        8e745c0215d52e15702551f29efb882a5eba97b5f279ccc29293b1a9b1b8661bf71b548569f9a99fa35c35a15d1b6b288d3c381c1292418c36dc89e2fa0b3a37

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

        4.2MB

        MD5

        f71b342220b8f8935abe5ea0b1e5f30c

        SHA1

        a70d41dbc456d548e790af717575b1f83e3f38b5

        SHA256

        dec8c51c89452b183201e58e4cfceffb0924c4c1f7729841a739086711ff021f

        SHA512

        d6ba2d0eecb2bd70ea727c7bd86cce75fe535e4a7688eb6fc6334e30f568d24d0b6661b8873ddb88c1bb75dbf772fae215b101545ff85e6461a2b05b85dfe05f

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

        90KB

        MD5

        d84e7f79f4f0d7074802d2d6e6f3579e

        SHA1

        494937256229ef022ff05855c3d410ac3e7df721

        SHA256

        dcfc2b4fa3185df415855ec54395d9c36612f68100d046d8c69659da01f7d227

        SHA512

        ed7b0ac098c8184b611b83158eaa86619001e74dba079d398b34ac694ce404ba133c2baf43051840132d6a3a089a375550072543b9fab2549d57320d13502260

      • 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/2852-1519-0x000001F2C4C00000-0x000001F2C4C01000-memory.dmp
        Filesize

        4KB

      • memory/2852-1518-0x000001F2C4C00000-0x000001F2C4C01000-memory.dmp
        Filesize

        4KB

      • memory/2852-1520-0x000001F2C4C00000-0x000001F2C4C01000-memory.dmp
        Filesize

        4KB

      • memory/2852-1514-0x000001F2C4C00000-0x000001F2C4C01000-memory.dmp
        Filesize

        4KB

      • memory/2852-1509-0x000001F2C4C00000-0x000001F2C4C01000-memory.dmp
        Filesize

        4KB

      • memory/2852-1510-0x000001F2C4C00000-0x000001F2C4C01000-memory.dmp
        Filesize

        4KB

      • memory/2852-1517-0x000001F2C4C00000-0x000001F2C4C01000-memory.dmp
        Filesize

        4KB

      • memory/2852-1516-0x000001F2C4C00000-0x000001F2C4C01000-memory.dmp
        Filesize

        4KB

      • memory/2852-1508-0x000001F2C4C00000-0x000001F2C4C01000-memory.dmp
        Filesize

        4KB

      • memory/2852-1515-0x000001F2C4C00000-0x000001F2C4C01000-memory.dmp
        Filesize

        4KB

      • memory/2860-1464-0x0000000074F40000-0x00000000756F0000-memory.dmp
        Filesize

        7.7MB

      • memory/2860-5-0x00000000053E0000-0x00000000053F2000-memory.dmp
        Filesize

        72KB

      • memory/2860-3-0x0000000074F40000-0x00000000756F0000-memory.dmp
        Filesize

        7.7MB

      • memory/2860-0-0x0000000074F4E000-0x0000000074F4F000-memory.dmp
        Filesize

        4KB

      • memory/2860-2-0x00000000048E0000-0x00000000048EA000-memory.dmp
        Filesize

        40KB

      • memory/2860-1-0x0000000000010000-0x000000000001A000-memory.dmp
        Filesize

        40KB

      • memory/4812-1488-0x00007FFCF7970000-0x00007FFCF8431000-memory.dmp
        Filesize

        10.8MB

      • memory/4812-1492-0x0000000180000000-0x0000000180B0D000-memory.dmp
        Filesize

        11.1MB

      • memory/4812-1490-0x0000000180000000-0x0000000180B0D000-memory.dmp
        Filesize

        11.1MB

      • memory/4812-1491-0x0000000180000000-0x0000000180B0D000-memory.dmp
        Filesize

        11.1MB

      • memory/4812-1489-0x0000000180000000-0x0000000180B0D000-memory.dmp
        Filesize

        11.1MB

      • memory/4812-1496-0x000002716D1F0000-0x000002716D1F8000-memory.dmp
        Filesize

        32KB

      • memory/4812-1497-0x0000027171E20000-0x0000027171E58000-memory.dmp
        Filesize

        224KB

      • memory/4812-1498-0x000002716D210000-0x000002716D21E000-memory.dmp
        Filesize

        56KB

      • memory/4812-1499-0x0000000180000000-0x0000000180B0D000-memory.dmp
        Filesize

        11.1MB

      • memory/4812-1500-0x00007FFCF7973000-0x00007FFCF7975000-memory.dmp
        Filesize

        8KB

      • memory/4812-1501-0x0000000180000000-0x0000000180B0D000-memory.dmp
        Filesize

        11.1MB

      • memory/4812-1502-0x00007FFCF7970000-0x00007FFCF8431000-memory.dmp
        Filesize

        10.8MB

      • memory/4812-1503-0x00007FFCF7970000-0x00007FFCF8431000-memory.dmp
        Filesize

        10.8MB

      • memory/4812-1504-0x0000000180000000-0x0000000180B0D000-memory.dmp
        Filesize

        11.1MB

      • memory/4812-1505-0x0000000180000000-0x0000000180B0D000-memory.dmp
        Filesize

        11.1MB

      • memory/4812-1506-0x0000000180000000-0x0000000180B0D000-memory.dmp
        Filesize

        11.1MB

      • memory/4812-1507-0x0000000180000000-0x0000000180B0D000-memory.dmp
        Filesize

        11.1MB

      • memory/4812-1477-0x000002716D150000-0x000002716D1CE000-memory.dmp
        Filesize

        504KB

      • memory/4812-1475-0x000002716CCA0000-0x000002716CCAE000-memory.dmp
        Filesize

        56KB

      • memory/4812-1473-0x000002716CFA0000-0x000002716CFC2000-memory.dmp
        Filesize

        136KB

      • memory/4812-1472-0x00007FFCF7970000-0x00007FFCF8431000-memory.dmp
        Filesize

        10.8MB

      • memory/4812-1471-0x000002716CDA0000-0x000002716CE52000-memory.dmp
        Filesize

        712KB

      • memory/4812-1469-0x000002716CCE0000-0x000002716CD9A000-memory.dmp
        Filesize

        744KB

      • memory/4812-1468-0x000002716D220000-0x000002716D75C000-memory.dmp
        Filesize

        5.2MB

      • memory/4812-1467-0x00007FFCF7970000-0x00007FFCF8431000-memory.dmp
        Filesize

        10.8MB

      • memory/4812-1465-0x000002716A560000-0x000002716A57A000-memory.dmp
        Filesize

        104KB

      • memory/4812-1463-0x00007FFCF7973000-0x00007FFCF7975000-memory.dmp
        Filesize

        8KB

      • memory/4812-1521-0x0000000180000000-0x0000000180B0D000-memory.dmp
        Filesize

        11.1MB

      • memory/4812-1526-0x0000000180000000-0x0000000180B0D000-memory.dmp
        Filesize

        11.1MB