Malicious PDF — malware analysis report

Static analysis result for SHA-256 793adf45eb1aa739…

MALICIOUS

PDF

82.6 KB Created: 2021-08-18 21:32:43 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-15
MD5: 916d23d4c1cfe6ca8888fcaf06204337 SHA-1: 7491568fc7f9d3a4de20818fff091bd57d04b306 SHA-256: 793adf45eb1aa739c6cb9b7f59cb84aa18c85301321a7d42493f0c01fd1b5f5d
96 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9991

Heuristics 5

  • 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 https://mebelihome.ru/upload_picture/jolefesizulabamuwuvameg.pdf In PDF document text
    • http://recruiters-zone.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b6ab526a024---50351487924.pdfIn PDF document text
    • https://aljazeerahdrilling.com/userfiles/files/kemavubukaboxusodewonibo.pdfIn PDF document text
    • http://nenkin-t.com/upload_img/ck/files/bidarajiputerinizarupuxu.pdfIn PDF document text
    • http://www.onegelha.com/wp-content/plugins/super-forms/uploads/php/files/946ce95042f61420b2025932c7119b84/62459011206.pdfIn PDF document text
    • http://nessium.net/userfiles/file/xokenumefefigibano.pdfIn PDF document text
    • http://www.knickmeier.net/images/pageimg/file/rovugodisazal.pdfIn PDF document text
    • http://mistral-paints.cz/userfiles/files/gabozozewepomujolo.pdfIn PDF document text
    • https://postelezmasivu-plzen.cz/ckfinder/userfiles/files/44553621366.pdfIn PDF document text
    • http://lynxitservices.com/ckfinder/userfiles/files/52616863961.pdfIn PDF document text
    • https://www.phoenixdentalacademy.co.uk/wp-content/plugins/super-forms/uploads/php/files/090facb200611c58911b5248ca61d845/45233043861.pdfIn PDF document text
    • https://www.eziblank.com/wp-content/plugins/super-forms/uploads/php/files/834b37d83d9f47612c2f12c656f43dae/2428469327.pdfIn PDF document text
    • http://mytmbc.org/fckimage/file/54876705446.pdfIn PDF document text
    • https://www.webhisto.com.tr/wp-content/plugins/formcraft/file-upload/server/content/files/160ac51912099f---92092488954.pdfIn PDF document text
    • http://xoblates.com/clients/e/e0/e08cfb93fb97b00c28394d0532709dc9/File/62665119119.pdfIn PDF document text
    • http://intechsol.kz/wp-content/plugins/formcraft/file-upload/server/content/files/16083769b862c7---mekojapabexexemejawibe.pdfIn PDF document text
    • http://cleannshieldflorida.com/wp-content/plugins/super-forms/uploads/php/files/26fb9fca11231713fb2eadad4b1c08c3/mewaluzitinu.pdfIn PDF document text
    • http://askort.pl/Upload/file/jupojoruluzetu.pdfIn PDF document text
    • https://www.yoursurveysurveyors.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/160c1370f6e617---21316789905.pdfIn PDF document text
    • http://www.jesuseslaroca.org/wp-content/plugins/formcraft/file-upload/server/content/files/160afe1236e8f3---takawexefanaxiboxidateto.pdfIn PDF document text
    • http://fouladsazanco.com/Upload/file/fugajetivot.pdfIn PDF document text
    • http://www.cafeinca.com/img/public/contenido/file/tebamog.pdfIn PDF document text
    • https://feedproxy.google.com/~r/Uplcv/~3/A3Ryygt5BCM/uplcv?utm_term=how+to+check+if+a+number+plate+is+available+qldPDF 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 PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000deb2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDEB2 11508 bytes
SHA-256: 695cdb6bd1e1a28a8b3fd3a2e5fd0435fc3cace52e66241221dc0d9c6fa0df80
font_01_sfnt_off0000f94f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF94F 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_02_sfnt_off00011161.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11161 16468 bytes
SHA-256: d2d78877df608edaea5e98ee86c408d8c98795a649a28742929613eda05893a6