2740a074-1e06-4f75-9c6a-dc57a3f85189

POORTRY1.sys :inline

Description

Driver categorized as POORTRY by Mandiant.

  • UUID: 2740a074-1e06-4f75-9c6a-dc57a3f85189
  • Created: 2023-03-04
  • Author: Michael Haag
  • Acknowledgement: |

Download

This download link contains the malicious driver!

Commands

sc.exe create POORTRY1.sys binPath=C:\windows\temp\POORTRY1.sys type=kernel && sc.exe start POORTRY1.sys
Use CasePrivilegesOperating System
Elevate privilegeskernelWindows 10

Detections

YARA 🏹

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Exact Match

with header and size limitation

Threat Hunting

without header and size limitation

Sigma 🛡️

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Names

detects loading using name only

Hashes

detects loading using hashes only

Sysmon 🔎

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Block

on hashes

Alert

on hashes

Resources


  • https://www.mandiant.com/resources/blog/hunting-attestation-signed-malware

  • Known Vulnerable Samples

    PropertyValue
    FilenamePOORTRY1.sys
    MD5acac842a46f3501fe407b1db1b247a0b
    SHA131fac347aa26e92db4d8c9e1ba37a7c7a2234f08
    SHA256575e58b62afab094c20c296604dc3b7dd2e1a50f5978d8ee24b7dca028e97316
    Authentihash MD5887c566bdc8ed5231f45a37845d5ee89
    Authentihash SHA1e6ab2bbad89502d8985381b33d7351eb97cb2b78
    Authentihash SHA256565733b6e6d8f7b9661f04a3b4f29372f5dec080512551204b92ac4916a144cb
    RichPEHeaderHash MD5b8bd897847f9fb59fd2cd13a53dd67bd
    RichPEHeaderHash SHA13db6a537756d68d4e961e37bc17960881214eca4
    RichPEHeaderHash SHA2560418235f7944cd80b88942aa7c406a353062afb5f821b5d7e8bd9628e6db3325

    Download

    Certificates

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    Certificate 3300000057ee4d659a923e7c10000000000057
    FieldValue
    ToBeSigned (TBS) MD5fdc11a5676aed4e9cc0c09eeb7450dfb
    ToBeSigned (TBS) SHA14902077d9a05d4231b791d3b05bafa4a79132f03
    ToBeSigned (TBS) SHA2565db56c23d83bf67c7152e28ad4a684a7372b4ae4f52afe7a81ce91eef94caec3
    SubjectC=US, ST=Washington, L=Redmond, O=Microsoft Corporation, CN=Microsoft Windows Hardware Compatibility Publisher
    ValidFrom2022-06-07 18:08:06
    ValidTo2023-06-01 18:08:06
    Signature0a835e40cdb627d4f0a0d3dbbf64a46a05c132d0b5df9d11cd9c195d7037737057d57a342732ae68d67de47f460e7211c7c40dc29b0a079caff871c4834a9a2fc85e759de9b78659ad6fd79b7320e538e9ba5d52227ad67cc00b0a770ef662af3d743a558643ad89cfb015591709a69b6271a9b65db71898e7cb9964c6376dc474898301a6133198b486b518fdd9d7b9723dcffc441e026833f7c72e27986026c97b9184a0048b10d1fe6847ae467f02173f7a69120be780e5b6b9e6399402cc58735a31b537cc33578fbea443135a4a612359150bcf9ab316f6a9248bc71ef3f3480b9b3fa2341692bc3a121d80214688f7bd87d5ec56dcbd0ea61abf2c7ed2b739a07590adb596d401735d955f5f94c591d69ab4363a42f9fca549d439495711ff7990448c03724792ed4acf31f2b35b136c1b2f37aa82b1aabf7daf059dcb2e976e95311ec6e9cc53876dd09632cf512d39c801849a7c1088a565691953e07c7ff17b22518e982dd2dcc0feda8c834ca1f5e247aef1c3af5f13cd4b8cc1b6c0179bc876db88d677047c34366533e349796dbdea86389ad640710b7742ae8cc4ec88f10fa80ede4b1c93f81b55480fc8228216d54813df0327e74b3db9f3512a40c0568e4215827f9b7a2613deea72a7ec4df2def05e5559015049fe83edc83300526045cb128119e131b7d3573b268e24b0a25b9ad59f6301c8fc8f409322
    SignatureAlgorithmOID1.2.840.113549.1.1.11
    IsCertificateAuthorityFalse
    SerialNumber3300000057ee4d659a923e7c10000000000057
    Version3
    Certificate 330000000d690d5d7893d076df00000000000d
    FieldValue
    ToBeSigned (TBS) MD583f69422963f11c3c340b81712eef319
    ToBeSigned (TBS) SHA10c5e5f24590b53bc291e28583acb78e5adc95601
    ToBeSigned (TBS) SHA256d8be9e4d9074088ef818bc6f6fb64955e90378b2754155126feebbbd969cf0ae
    SubjectC=US, ST=Washington, L=Redmond, O=Microsoft Corporation, CN=Microsoft Windows Third Party Component CA 2014
    ValidFrom2014-10-15 20:31:27
    ValidTo2029-10-15 20:41:27
    Signature96b5c33b31f27b6ba11f59dd742c3764b1bca093f9f33347e9f95df21d89f4579ee33f10a3595018053b142941b6a70e5b81a2ccbd8442c1c4bed184c2c4bd0c8c47bcbd8886fb5a0896ae2c2fdfbf9366a32b20ca848a6945273f732332936a23e9fffdd918edceffbd6b41738d579cf8b46d499805e6a335a9f07e6e86c06ba8086725afc0998cdba7064d4093188ba959e69914b912178144ac57c3ae8eae947bcb3b8edd7ab4715bba2bc3c7d085234b371277a54a2f7f1ab763b94459ed9230cce47c099212111f52f51e0291a4d7d7e58f8047ff189b7fd19c0671dcf376197790d52a0fbc6c12c4c50c2066f50e2f5093d8cafb7fe556ed09d8a753b1c72a6978dcf05fe74b20b6af63b5e1b15c804e9c7aa91d4df72846782106954d32dd6042e4b61ac4f24636de357302c1b5e55fb92b59457a9243d7c4e963dd368f76c728caa8441be8321a66cde5485c4a0a602b469206609698dcd933d721777f886dac4772daa2466eab64682bd24e98fb35cc7fec3f136d11e5db77edc1c37e1f6a4a14f8b4a721c671866770cdd819a35d1fa09b9a7cc55d4d728e74077fa74d00fcdd682412772a557527cda92c1d8e7c19ee692c9f7425338208db38cc7cc74f6c3a6bc237117872fe55596460333e2edfc42de72cd7fb0a82256fb8d70c84a5e1c4746e2a95329ea0fecdb4188fd33bad32b2b19ab86d0543fbff0d0f
    SignatureAlgorithmOID1.2.840.113549.1.1.11
    IsCertificateAuthorityTrue
    SerialNumber330000000d690d5d7893d076df00000000000d
    Version3

    Imports

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    • ntoskrnl.exe

    Imports

    Expand
    • ntoskrnl.exe

    ImportedFunctions

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    • ExAllocatePoolWithTag
    • IoDeleteSymbolicLink
    • ExFreePoolWithTag
    • RtlAnsiStringToUnicodeString
    • RtlInitUnicodeString
    • IoDeleteDevice
    • IoCreateFile
    • RtlInitString
    • RtlFreeUnicodeString
    • ZwQueryDirectoryFile
    • ZwClose
    • IofCompleteRequest
    • IoIsWdmVersionAvailable
    • IoCreateSymbolicLink
    • IoCreateDevice
    • DbgPrint
    • KeBugCheckEx
    • __chkstk

    ExportedFunctions

    Expand

    Signature

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    {
      "Certificates": [
        {
          "IsCertificateAuthority": false,
          "SerialNumber": "3300000057ee4d659a923e7c10000000000057",
          "Signature": "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",
          "SignatureAlgorithmOID": "1.2.840.113549.1.1.11",
          "Subject": "C=US, ST=Washington, L=Redmond, O=Microsoft Corporation, CN=Microsoft Windows Hardware Compatibility Publisher",
          "TBS": {
            "MD5": "fdc11a5676aed4e9cc0c09eeb7450dfb",
            "SHA1": "4902077d9a05d4231b791d3b05bafa4a79132f03",
            "SHA256": "5db56c23d83bf67c7152e28ad4a684a7372b4ae4f52afe7a81ce91eef94caec3",
            "SHA384": "c952d7f0e0ea5216ce4400601fb7c0829f0f3fcd6eb2b5b9112fbe45d133e00c4abd660f8e1794f7ac4ef95123e2c0ab"
          },
          "ValidFrom": "2022-06-07 18:08:06",
          "ValidTo": "2023-06-01 18:08:06",
          "Version": 3
        },
        {
          "IsCertificateAuthority": true,
          "SerialNumber": "330000000d690d5d7893d076df00000000000d",
          "Signature": "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",
          "SignatureAlgorithmOID": "1.2.840.113549.1.1.11",
          "Subject": "C=US, ST=Washington, L=Redmond, O=Microsoft Corporation, CN=Microsoft Windows Third Party Component CA 2014",
          "TBS": {
            "MD5": "83f69422963f11c3c340b81712eef319",
            "SHA1": "0c5e5f24590b53bc291e28583acb78e5adc95601",
            "SHA256": "d8be9e4d9074088ef818bc6f6fb64955e90378b2754155126feebbbd969cf0ae",
            "SHA384": "260ad59ba706420f68ba212931153bd89f760c464b21be55fba9d014fff322407859d4ebfb78ea9a3330f60dc9821a63"
          },
          "ValidFrom": "2014-10-15 20:31:27",
          "ValidTo": "2029-10-15 20:41:27",
          "Version": 3
        }
      ],
      "CertificatesInfo": "",
      "Signer": [
        {
          "Issuer": "C=US, ST=Washington, L=Redmond, O=Microsoft Corporation, CN=Microsoft Windows Third Party Component CA 2014",
          "SerialNumber": "3300000057ee4d659a923e7c10000000000057",
          "Version": 1
        }
      ],
      "SignerInfo": ""
    }
    

    source

    last_updated: 2023-12-02