Analysis

  • max time kernel
    150s
  • max time network
    154s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    14-09-2024 09:02

General

  • Target

    YoudaoDict_fanyiweb_navigation.msi

  • Size

    136.4MB

  • MD5

    5e0ae252dac3cd6f373b22196b777bef

  • SHA1

    a8882dfe7c20d90182680a097a579eb8dbe68705

  • SHA256

    89f508689ba3884477bd37d9bfa1ba5f6be1cb1f1d18f3d9bb56ff18d0c315ce

  • SHA512

    657c8dff4e56007cd144ba9aba020bb58dcfbed62a76f24c5409f76f63a25f56ae2918fe3c2753008eac5be4b8b3742ecd1925b7ff6fe39cc3408409d3b52fb9

  • SSDEEP

    3145728:VNflHHLhwYc7Hd2C5lI2I8OEq9NPjWa/3sn3CJGWn1tTx5cYw:VJlHH9wYKdz7I29OJzPNCCws1TC

Malware Config

Signatures

  • Detect PurpleFox Rootkit 3 IoCs

    Detect PurpleFox Rootkit.

  • Gh0st RAT payload 3 IoCs
  • Gh0strat

    Gh0st RAT is a remote access tool (RAT) with its source code public and it has been used by multiple Chinese groups.

  • PurpleFox

    PurpleFox is an exploit kit used to distribute other malware families and first seen in 2018.

  • Enumerates connected drives 3 TTPs 64 IoCs

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

  • Drops file in Program Files directory 14 IoCs
  • Drops file in Windows directory 8 IoCs
  • Executes dropped EXE 8 IoCs
  • Loads dropped DLL 6 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Event Triggered Execution: Installer Packages 2 TTPs 1 IoCs
  • System Location Discovery: System Language Discovery 1 TTPs 6 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • Checks SCSI registry key(s) 3 TTPs 5 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.

  • Modifies data under HKEY_USERS 13 IoCs
  • Modifies registry class 22 IoCs
  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of FindShellTrayWindow 2 IoCs
  • Suspicious use of WriteProcessMemory 20 IoCs
  • Uses Volume Shadow Copy service COM API

    The Volume Shadow Copy service is used to manage backups/snapshots.

Processes

  • C:\Windows\system32\msiexec.exe
    msiexec.exe /I C:\Users\Admin\AppData\Local\Temp\YoudaoDict_fanyiweb_navigation.msi
    1⤵
    • Enumerates connected drives
    • Event Triggered Execution: Installer Packages
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of FindShellTrayWindow
    PID:2824
  • C:\Windows\system32\msiexec.exe
    C:\Windows\system32\msiexec.exe /V
    1⤵
    • Enumerates connected drives
    • Drops file in Program Files directory
    • Drops file in Windows directory
    • Modifies data under HKEY_USERS
    • Modifies registry class
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1864
    • C:\Windows\system32\srtasks.exe
      C:\Windows\system32\srtasks.exe ExecuteScopeRestorePoint /WaitForRestorePoint:2
      2⤵
        PID:3992
      • C:\Windows\syswow64\MsiExec.exe
        C:\Windows\syswow64\MsiExec.exe -Embedding 90C38518AF659E74F27E5968ADB94BF2 E Global\MSI0000
        2⤵
        • System Location Discovery: System Language Discovery
        • Modifies data under HKEY_USERS
        • Suspicious use of WriteProcessMemory
        PID:1180
        • C:\Program Files\ProvideBrokerFearless\ytVmWffRazCj.exe
          "C:\Program Files\ProvideBrokerFearless\ytVmWffRazCj.exe" x "C:\Program Files\ProvideBrokerFearless\dyCPqIGaifpMGXHxudpD" -o"C:\Program Files\ProvideBrokerFearless\" -pjgNXmLXevyMZUbQgvJBp -y
          3⤵
          • Drops file in Program Files directory
          • Executes dropped EXE
          • System Location Discovery: System Language Discovery
          PID:1168
        • C:\Program Files\ProvideBrokerFearless\BtKrHWYQcg4.exe
          "C:\Program Files\ProvideBrokerFearless\BtKrHWYQcg4.exe" -number 206 -file file3 -mode mode3 -flag flag3
          3⤵
          • Drops file in Program Files directory
          • Executes dropped EXE
          • System Location Discovery: System Language Discovery
          • Suspicious behavior: EnumeratesProcesses
          PID:1104
        • C:\Program Files\ProvideBrokerFearless\YoudaoDict_fanyiweb_navigation.exe
          "C:\Program Files\ProvideBrokerFearless\YoudaoDict_fanyiweb_navigation.exe"
          3⤵
          • Executes dropped EXE
          • Loads dropped DLL
          • System Location Discovery: System Language Discovery
          PID:60
    • C:\Windows\system32\vssvc.exe
      C:\Windows\system32\vssvc.exe
      1⤵
      • Checks SCSI registry key(s)
      • Suspicious use of AdjustPrivilegeToken
      PID:4612
    • C:\Program Files\ProvideBrokerFearless\DiBpAPdZHEfb.exe
      "C:\Program Files\ProvideBrokerFearless\DiBpAPdZHEfb.exe" install
      1⤵
      • Drops file in Program Files directory
      • Executes dropped EXE
      PID:724
    • C:\Program Files\ProvideBrokerFearless\DiBpAPdZHEfb.exe
      "C:\Program Files\ProvideBrokerFearless\DiBpAPdZHEfb.exe" start
      1⤵
      • Drops file in Program Files directory
      • Executes dropped EXE
      PID:3104
    • C:\Program Files\ProvideBrokerFearless\DiBpAPdZHEfb.exe
      "C:\Program Files\ProvideBrokerFearless\DiBpAPdZHEfb.exe"
      1⤵
      • Drops file in Program Files directory
      • Executes dropped EXE
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of WriteProcessMemory
      PID:4884
      • C:\Program Files\ProvideBrokerFearless\BtKrHWYQcg4.exe
        "C:\Program Files\ProvideBrokerFearless\BtKrHWYQcg4.exe" -number 248 -file file3 -mode mode3 -flag flag3
        2⤵
        • Executes dropped EXE
        • System Location Discovery: System Language Discovery
        • Modifies data under HKEY_USERS
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of WriteProcessMemory
        PID:1284
        • C:\Program Files\ProvideBrokerFearless\BtKrHWYQcg4.exe
          "C:\Program Files\ProvideBrokerFearless\BtKrHWYQcg4.exe" -number 362 -file file3 -mode mode3 -flag flag3
          3⤵
          • Enumerates connected drives
          • Executes dropped EXE
          • System Location Discovery: System Language Discovery
          • Checks processor information in registry
          • Suspicious behavior: EnumeratesProcesses
          PID:3472

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

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    Downloads

    • C:\Config.Msi\e5813f1.rbs

      Filesize

      7KB

      MD5

      2c4e7cf0d53258fe50454c1207ca53c0

      SHA1

      7494858d1fb656833cb8f3a4f6a2778be674b923

      SHA256

      c08d4206420c4c6e7445d1d68ced258577af24fc6d7076a2d37a47ab5f5d4a78

      SHA512

      d1cabe779dd723fda5532ce2ca618fa2f0402c530290fe44ce84af57760fe0a9358226fead3844d819ba6246287f55d32d83f21784013b2763bbe5acb3c8e8b0

    • C:\Program Files\ProvideBrokerFearless\BtKrHWYQcg4.exe

      Filesize

      3.2MB

      MD5

      7d9f488ced67ada533312513fc6dbd6a

      SHA1

      b1d4aa4613fd48274dd6808e200ab7d08e21c57e

      SHA256

      3b98e68f11d11b2746e56bf4eb72a8c467574635e1a6c0f4d5142606288a2fb6

      SHA512

      8410fef50eca91445d34e83a52fef2111577b0c167fe5fe80a449311a3154acc5a4c479595f3a092c4cbfb0cd6901b1ba817aa5cbab3bb3a23c80b4ddf676403

    • C:\Program Files\ProvideBrokerFearless\DiBpAPdZHEfb.exe

      Filesize

      832KB

      MD5

      d305d506c0095df8af223ac7d91ca327

      SHA1

      679cb4c763c84e75ccb0fa3475bd6b7a36e81c4a

      SHA256

      923111c7142b3dc783a3c722b19b8a21bcb78222d7a136ac33f0ca8a29f4cb66

      SHA512

      94d369a4db88bff9556a1d7a7fb0188ed935c3592bae09335542c5502ec878e839177be63ac3ab4af75d4dc38a3a4f5d0fd423115ac72cf5dd710c59604db796

    • C:\Program Files\ProvideBrokerFearless\DiBpAPdZHEfb.wrapper.log

      Filesize

      258B

      MD5

      4c03a42e75a55f73d69c365826991150

      SHA1

      4d45d42d03635452cd9c60715753ec02f2a504d1

      SHA256

      632503a8ab659d992e2ce12708418357612671112998a4e4ad224c70a5687ef5

      SHA512

      d04b0c66d21ec722071f1960f244f8bedb200c6cdd8cd383beeb0970f88eef6e58538e7a3baa740bd6f19347bbc7b8e43b40d065e10cfe3f9c8b0ea248ed7931

    • C:\Program Files\ProvideBrokerFearless\DiBpAPdZHEfb.wrapper.log

      Filesize

      474B

      MD5

      7f2049220db9860f80cff01280d9a75f

      SHA1

      1641e30317df70142aa9346c17f967a483b79844

      SHA256

      1c0c5e034da6dc73cc298fc2ea3770a5dff6fe3f6afdffba9e1a23927a4443df

      SHA512

      09c9488af638d3f8e3c962f6b9428f0563d46bfc2bd2feddc8df31eaac06949647e58990d8199ba0218e9a1a3d10ae9b6d2d3cac771005f2ff33fa06c2d17000

    • C:\Program Files\ProvideBrokerFearless\DiBpAPdZHEfb.wrapper.log

      Filesize

      903B

      MD5

      848b081615bdc338ca53b4986697cddb

      SHA1

      c3f840a4fc82c95e4dc986f23995b916db097ae2

      SHA256

      6769e2341f0d5d455b73ae905b18aecec40cb8e4d400691723792bc725ed8998

      SHA512

      dfb75ea48adfbf282f7411605a06f4a83e726703a3e60e446c0423178ae5c1c64f0e9d33f20c2d07744716330ac3acc67ddbdf9f65d0910d3348cc27185686f8

    • C:\Program Files\ProvideBrokerFearless\DiBpAPdZHEfb.xml

      Filesize

      430B

      MD5

      d73a9e906e59a8d9b76f48d5a49f3603

      SHA1

      e6cccc679f97421da0b040ec613360429c88075e

      SHA256

      57fc081ff9d9e67edcd924585c8a51d7c680b26ad7c0a2c20b9d05aa03744f41

      SHA512

      72887c3d47b0bc648eb44ed04df6168c0536a17d7853c36b5ca03004e35893af6629f05c57babf4151d60df66708e7321c72856dfd99eb21837ba050330afc57

    • C:\Program Files\ProvideBrokerFearless\dyCPqIGaifpMGXHxudpD

      Filesize

      1.9MB

      MD5

      360b21de100afb1b2c3c842bc697752a

      SHA1

      735cfd5645d93b075cf6982573712fe174d479a2

      SHA256

      d7601627796be81e71decfe9ab4f51d9c28af123b66aba3c59386c822ea2cad1

      SHA512

      1232dd9fbce27aded3053ebb12b0d2007626a167de5d113bda502d40c22102d432cd3c4fea5f754de8a8d2bff530adc0536adc84fe40a32bd72859df954337d7

    • C:\Program Files\ProvideBrokerFearless\ytVmWffRazCj.exe

      Filesize

      574KB

      MD5

      42badc1d2f03a8b1e4875740d3d49336

      SHA1

      cee178da1fb05f99af7a3547093122893bd1eb46

      SHA256

      c136b1467d669a725478a6110ebaaab3cb88a3d389dfa688e06173c066b76fcf

      SHA512

      6bc519a7368ee6bd8c8f69f2d634dd18799b4ca31fbc284d2580ba625f3a88b6a52d2bc17bea0e75e63ca11c10356c47ee00c2c500294abcb5141424fc5dc71c

    • C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0\UsageLogs\DiBpAPdZHEfb.exe.log

      Filesize

      1KB

      MD5

      122cf3c4f3452a55a92edee78316e071

      SHA1

      f2caa36d483076c92d17224cf92e260516b3cbbf

      SHA256

      42f5774d1ee4cae5d7a4e83970da42bb17e61ae93c312247211b5ee3535662e0

      SHA512

      c98666fb86aaff6471c0a96f12f037b9a607579c5891c9d7ba8cd4e90506ca7aa5b5f6264081d25f703c88fb69d8e2cd87809d508e771770550d0c5d4d17d91c

    • C:\Users\Admin\AppData\Local\Temp\nsq1F7C.tmp\LockedList.dll

      Filesize

      95KB

      MD5

      5a94bf8916a11b5fe94aca44886c9393

      SHA1

      820d9c5e3365e323d6f43d3cce26fd9d2ea48b93

      SHA256

      0b1e46044b580121f30bedb2b5412d3170c6afaa7800d702ee71f7666904236d

      SHA512

      79cba3dcb249d88a6a6cfb4efcb65cc42a240af4edb14bcc7546d9c701a7b642362f9fe0488691a8906607ecc76f7b5ee5a4282fa057053b258eea143ac90c20

    • C:\Users\Admin\AppData\Local\Temp\nsq1F7C.tmp\OP_WndProc.dll

      Filesize

      48KB

      MD5

      765cf74fc709fb3450fa71aac44e7f53

      SHA1

      b423271b4faac68f88fef15fa4697cf0149bad85

      SHA256

      cc46ab0bf6b19a2601cd002b06769ad08baf4ed0b14e8728973f8af96bdee57e

      SHA512

      0c347d9a2960a17f8ec9b78ede972bf3cf6567fd079a6aa5a6ac262ac227bfd36acc53a7a127fd7f387dec9f4509f4f3f754b10853a213e993ea1573e74ed7e6

    • C:\Users\Admin\AppData\Local\Temp\nsq1F7C.tmp\SkinBtn.dll

      Filesize

      4KB

      MD5

      29818862640ac659ce520c9c64e63e9e

      SHA1

      485e1e6cc552fa4f05fb767043b1e7c9eb80be64

      SHA256

      e96afa894a995a6097a405df76155a7a39962ff6cae7a59d89a25e5a34ab9eeb

      SHA512

      ebb94eb21e060fb90ec9c86787eada42c7c9e1e7628ea4b16d3c7b414f554a94d5e4f4abe0e4ee30fddf4f904fd3002770a9b967fbd0feeca353e21079777057

    • C:\Users\Admin\AppData\Local\Temp\nsq1F7C.tmp\System.dll

      Filesize

      11KB

      MD5

      bf712f32249029466fa86756f5546950

      SHA1

      75ac4dc4808ac148ddd78f6b89a51afbd4091c2e

      SHA256

      7851cb12fa4131f1fee5de390d650ef65cac561279f1cfe70ad16cc9780210af

      SHA512

      13f69959b28416e0b8811c962a49309dca3f048a165457051a28a3eb51377dcaf99a15e86d7eee8f867a9e25ecf8c44da370ac8f530eeae7b5252eaba64b96f4

    • C:\Users\Admin\AppData\Local\Temp\nsq1F7C.tmp\btn_agree.bmp

      Filesize

      38KB

      MD5

      dab018047c171165c18329d5c59b617e

      SHA1

      88848ac4aceb7358f13d225de6d4fd0a5696517a

      SHA256

      1cf0d9e908c3134ffce859483504420578ee8ccda399c20ecc035d1e4da93734

      SHA512

      1f6c50885290a3b983b7b8ac4bfec546d74acf2c50bfd0d245164a5ee149fa28a2871d545286108345c055c4f86f2b115509fcf74a6b60bc3f814c1c1635162d

    • C:\Users\Admin\AppData\Local\Temp\nsq1F7C.tmp\btn_disagree.bmp

      Filesize

      38KB

      MD5

      5f7b90c87ea0517771862fae5f11ce94

      SHA1

      fc9f195e888d960139278c04a0e78996c6442d5b

      SHA256

      f906101e512c3119e71b6949d68ac01c8fdb5ef06f4c73eaef9a3f0bd6021ce2

      SHA512

      dc08461f1e823d898f5ba42c9d1a131f599adbcb0af28c5de950a01ec74015d3da933e675986b71dde09cc74e00689ebe5f5f6cff857d335322f18d3f385edf0

    • C:\Users\Admin\AppData\Local\Temp\nsq1F7C.tmp\checkbox_null.bmp

      Filesize

      3KB

      MD5

      5754c67775c3f4f50a4780b3bca026b1

      SHA1

      3e95c72c13d6175ef275280fe270d678acee46e9

      SHA256

      2a5d67757f61ca00227e9b482a7b15365ba836c11f5b7d723b650e6d4108e739

      SHA512

      df6744556a24d4f6b907fc6126035adca4d3ce8aba52b26112e59b24ebfc5c4e079ee8ed74df3f28fc62cc3e207041cf8fb6b6a84ec58125122c214924e0a97f

    • C:\Users\Admin\AppData\Local\Temp\nsq1F7C.tmp\nsDialogs.dll

      Filesize

      9KB

      MD5

      4ccc4a742d4423f2f0ed744fd9c81f63

      SHA1

      704f00a1acc327fd879cf75fc90d0b8f927c36bc

      SHA256

      416133dd86c0dff6b0fcaf1f46dfe97fdc85b37f90effb2d369164a8f7e13ae6

      SHA512

      790c5eb1f8b297e45054c855b66dfc18e9f3f1b1870559014dbefa3b9d5b6d33a993a9e089202e70f51a55d859b74e8605c6f633386fd9189b6f78941bf1bfdb

    • C:\Users\Admin\AppData\Local\Temp\nsq1F7C.tmp\slide8.bmp

      Filesize

      908KB

      MD5

      6d20c27bc3168af9c076b459f1da05dc

      SHA1

      d49795bc5ec392f5da3a65958bc8bd2dbaaddcfe

      SHA256

      da8894cbad7c440ad992416421611071d9b82cda3a3c8287f7c1d75c0386f468

      SHA512

      e4233a72e59bd1f7ee0dc4559ef06b360025e52414c2d6f4ee317e5c193109c1e4be70fc89e74e4a6061035c7e18b97e61ab96716b4ab0ab997b178bcef9d7bb

    • \??\GLOBALROOT\Device\HarddiskVolumeShadowCopy2\System Volume Information\SPP\metadata-2

      Filesize

      23.7MB

      MD5

      bd06e042b74c1f81f6231a8d8a1c8238

      SHA1

      39ce988bb03006c4c8d10f165889d51266c1a657

      SHA256

      e9edd968c7f73ef3067fde90b7e77736feff58486823a944dd8b7a518d505136

      SHA512

      97b1942b325412e8534a8f0bdbf64a91b1b4a07125933950538daf1bc9db5851afaef777be8cc915d4cc3f1873f11b0a335506683160f90a0273e24da4cef354

    • \??\Volume{fa3589b5-0000-0000-0000-d01200000000}\System Volume Information\SPP\OnlineMetadataCache\{f0d5531c-1175-4a84-a645-397fdd833757}_OnDiskSnapshotProp

      Filesize

      6KB

      MD5

      655d842dd76af45da7fb72f99765ef14

      SHA1

      d70c4cb46d6e25c8e421ccbe165d5c7c9603008f

      SHA256

      f1c643140017a1675a0ad9ce3d546c0312a33419766517f5b50ab06e64b426e1

      SHA512

      a0a3a9db6112a76a29d9f9cb7a2e94d2668d740a0274c0385c73af0a133b1b6feb7c6b71fbc7cd31af3099538bb047c8f8c864ddfd4524b314c8fc5d8329ece1

    • memory/724-41-0x0000000000E10000-0x0000000000EE6000-memory.dmp

      Filesize

      856KB

    • memory/1104-25-0x0000000029D50000-0x0000000029D7A000-memory.dmp

      Filesize

      168KB

    • memory/3472-164-0x0000000029C80000-0x0000000029CC3000-memory.dmp

      Filesize

      268KB

    • memory/3472-165-0x000000002B890000-0x000000002BA4B000-memory.dmp

      Filesize

      1.7MB

    • memory/3472-167-0x000000002B890000-0x000000002BA4B000-memory.dmp

      Filesize

      1.7MB

    • memory/3472-170-0x000000002B890000-0x000000002BA4B000-memory.dmp

      Filesize

      1.7MB