Malicious PDF — malware analysis report

Static analysis result for SHA-256 425587db24736962…

MALICIOUS

PDF

85.2 KB Created: 2021-09-06 18:18:41 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-15
MD5: 09b14ad67ed79601a14e5471c15843b9 SHA-1: 2168c57a3a5fc323ae65dc527f4437f90c7ba678 SHA-256: 425587db24736962c569181e7989279fec79caec44507a91bd29f5bff342ebf3
156 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9974

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 https://archism.ru/uplcv?utm_term=predicting+events+with+astrology+pdf PDF link annotation
    • http://radecznica.pl/userfiles/file/8632766488.pdfIn PDF document text
    • https://webmodeli.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609297ebdc9cc---bididodenarutibitapa.pdfIn PDF document text
    • https://xn--80adj7cxa.xn--p1ai/wp-content/plugins/super-forms/uploads/php/files/ee6a72e12e8c01a5e930073ba325faf8/paweno.pdfIn PDF document text
    • http://sriagasthiyarastro.com/FCKeditor/userfiles/file/50779613379.pdfIn PDF document text
    • https://obermeyer-modemarkt.de/upload/file/sutagoju.pdfIn PDF document text
    • http://otelm4b.ru/admin/ckfinder/userfiles/files/29074570394.pdfIn PDF document text
    • https://brokenspoke.com/wp-content/plugins/super-forms/uploads/php/files/492d928d692be0eb04e4433adba000f3/3103607268.pdfIn PDF document text
    • http://champaigncursillo.com/userfiles/file/5721509180.pdfIn PDF document text
    • https://cuisinescartier.ca/upload/editor/file/89861787075.pdfIn PDF document text
    • https://marblobathware.ph/app/webroot/img/files/47082189981.pdfIn PDF document text
    • http://yuseigachi.nl/wp-content/plugins/formcraft/file-upload/server/content/files/160789e16e4d9d---53646549116.pdfIn PDF document text
    • https://xn--fct8ml6mwue.tw/uploads/files/belus.pdfIn PDF document text
    • http://polipadel.com/userfiles/file/xipazalor.pdfIn PDF document text
    • https://www.grecosalesinternational.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a58e079926c---63818493388.pdfIn PDF document text
    • https://amezdigital.com/wp-content/plugins/super-forms/uploads/php/files/4c6b4bc7513444519a55f5da6536701e/30621756737.pdfIn PDF document text
    • http://ufnk.fr/app/webroot/files/file/97552306856.pdfIn PDF document text
    • http://grafiport.com/userfiles/file/fiporudu.pdfIn PDF document text
    • https://www.truesdalepainting.com/wp-content/plugins/formcraft/file-upload/server/content/files/1610aa0bc21f25---nijijozodijuxijusoxola.pdfIn PDF document text
    • http://novussiteyonetimi.com/uploads/file/giwagux.pdfIn PDF document text
    • https://radekslodkiewicz.pl/files/file/2234364879.pdfIn PDF document text
    • http://www.bufolari.com/public/immagini/file/4855684098.pdfIn PDF document text
    • http://heilpraxis-pankow.de/wp-content/plugins/formcraft/file-upload/server/content/files/1606f681643986---padijapivaxenu.pdfIn PDF document text
    • http://delawaretravelmedicine.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609a01644e083---66083373429.pdfIn PDF document text
    • https://lufty.cz/UserFiles/files/timuwadopef.pdfIn PDF document text
    • https://www.booster-p.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608727f1638c4---rewanuzetakinerigexu.pdfIn PDF document text
    • 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_off0000e4b2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE4B2 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_01_sfnt_off0000fcc9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFCC9 11164 bytes
SHA-256: 9df4b49c6cd66ca7a6c2915ae633b66a688a887667045475bc8241fe883b0c25
font_02_sfnt_off000116ac.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x116AC 18452 bytes
SHA-256: 123a38748fb1d1e2f4d77447d59a098e7898aa53509570f2c5ba171912a05ad8