Malicious PDF — malware analysis report

Static analysis result for SHA-256 011bc26f03874fd8…

MALICIOUS

PDF

86.2 KB Created: 2021-08-23 09:33:44 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-05-28
MD5: 2614fc3e98b5c60a4c264b6ef733f70c SHA-1: c561096a72fdfb21741a99908ea0cdbb7fb8afc8 SHA-256: 011bc26f03874fd86f4b284a7f7c1b06ced94d53044df2238869e2f785df9834
156 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9911

Heuristics 6

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • PDF link farm points to compromised-WordPress upload storage medium PDF_COMPROMISED_CMS_UPLOAD_LINK_FARM
    PDF contains multiple clickable links, across many distinct hosts, whose targets are random-slug files parked in the upload directories of vulnerable WordPress form plugins (FormCraft, Super Forms). This is the hallmark of the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains hosted on compromised sites. The PDF itself carries no exploit — the risk is the linked destinations.
  • Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM
    Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
  • External URI info PDF_URI
    PDF contains an external URL action
  • Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
    The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
  • Embedded URL info EMBEDDED_URL
    One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
    URL http://bascobrunswick.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/160b3580276d1d---lamorufilugizilupapopebo.pdf In PDF document text
    • https://repairbase.net/FCKeditor/editor/filemanager/connectors/php/images/file/49257930340.pdfIn PDF document text
    • https://lightupalife.org.uk/wp-content/plugins/formcraft/file-upload/server/content/files/160a6b0ed512c1---munawele.pdfIn PDF document text
    • https://service-panev.com/userfiles/72046197406.pdfIn PDF document text
    • http://kazenergy.kz/wp-content/plugins/formcraft/file-upload/server/content/files/1609b90582fa23---4812576172.pdfIn PDF document text
    • https://www.heainc.com/wp-content/plugins/formcraft/file-upload/server/content/files/16091f20227970---4543187512.pdfIn PDF document text
    • http://qlinairnv.be/userfiles/file/59796118445.pdfIn PDF document text
    • http://ecohort.com/userfiles/files/97361768184.pdfIn PDF document text
    • https://unicornproduction.gr/wp-content/plugins/super-forms/uploads/php/files/5dd096429eb576267d8ad103e6463bb6/25506561421.pdfIn PDF document text
    • https://bikidi.com/UpFiles/WebEditorFiles/file/72293304918.pdfIn PDF document text
    • https://www.marthatrotts.ca/wp-content/plugins/formcraft/file-upload/server/content/files/1610db5cc2f4dd---soroxanumav.pdfIn PDF document text
    • https://edukiya.com/wp-content/plugins/super-forms/uploads/php/files/82c93c7ad698c54a08003b69ed4349e7/dafetasolufebuxeze.pdfIn PDF document text
    • http://sharon-barron.com/userfiles/files/63496870146.pdfIn PDF document text
    • https://ballestermultiservicios.com/wp-content/plugins/formcraft/file-upload/server/content/files/1610d1120b7fc4---leriwuvalofamagekiruf.pdfIn PDF document text
    • http://lawcab.ru/wp-content/plugins/formcraft/file-upload/server/content/files/160ac263432bc7---zugaruzuwidovibowol.pdfIn PDF document text
    • http://chinazzjx.com/d/files/31216558682.pdfIn PDF document text
    • http://dossalas.com/wp-content/plugins/super-forms/uploads/php/files/5068c2e04b050a8b3d95a2d9b84cf78f/8532494461.pdfIn PDF document text
    • https://medsplus.us/admin/images/file/kalolonin.pdfIn PDF document text
    • https://beachesbrewing.com/wp-content/plugins/super-forms/uploads/php/files/1fb928d39e7aa936ef8156614f0ca55c/56543454833.pdfIn PDF document text
    • https://www.ikedatosou.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c741ae48fa3---xekelifefejivojolopal.pdfIn PDF document text
    • http://www.supercarrentalsofmiami.com/wp-content/plugins/formcraft/file-upload/server/content/files/160956af4ca224---79964960263.pdfIn PDF document text
    • http://intrinhgia.com/admin/webroot/upload/image/files/64154550726.pdfIn PDF document text
    • http://baigeleather.com/userfiles/file/rowudukidaf.pdfIn PDF document text
    • http://www.restorationservice.ca/wp-content/plugins/formcraft/file-upload/server/content/files/160c8d90329730---67261300130.pdfIn PDF document text
    • https://www.jahnigterbraak.nl/wp-content/plugins/formcraft/file-upload/server/content/files/1609f904f35076---watudasatapapote.pdfIn PDF document text
    • http://xinyuemu.net/assets/202108/files/20210807004437442851.pdfIn PDF document text
    • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/1KS0DP0cxss/uplcv?utm_term=baby+looney+tunes+pepe+le+pewPDF link annotation
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
    • http://purl.org/dc/elements/1.1/In PDF document text
    • http://ns.adobe.com/pdf/1.3/In PDF document text
    • http://ns.adobe.com/xap/1.0/In PDF document text
    • http://ns.adobe.com/xap/1.0/mm/In PDF document text
    • http://ns.adobe.com/xap/1.0/rights/In PDF document text
    • http://dejavu.sourceforge.netIn extracted file (font_00_sfnt_off0000e990.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off0000e990.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000e990.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE990 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_01_sfnt_off000101a2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x101A2 19256 bytes
SHA-256: 0551852d1215da404090b317c22104fa8bae37e8cfbdbc2d7f667431989e8133
font_02_sfnt_off000131a0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x131A0 10544 bytes
SHA-256: 98d5af9c9fa8e7e49076da60eab7320fb0b7b5cf539faa2af1a4ebbe15b1422a