Malicious PDF — malware analysis report

Static analysis result for SHA-256 78250999fdf941fb…

MALICIOUS

PDF

254.4 KB Created: 2022-03-07 10:51:22 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-16
MD5: 72d7e0c06a19ef7f7e35a58716cca28d SHA-1: 8adbc8e244f3f3a90412b39eb4c0e3bcaa7cb50c SHA-256: 78250999fdf941fb88e942000445e950166a0250df7590757261102ace27e773
166 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.7915

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
  • Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINK
    PDF embeds an image with little or no body text and a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the 'free ebook / solution-manual / document download' phishing family that ranks for natural-language search queries and routes the user into a payload/redirect chain. The PDF carries no exploit; the risk is the linked destination. Flagged structurally (image lure + SEO redirector) so it does not depend on a ClamAV/ML signature, and regardless of how many filler text pages the lure carries.
  • 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.
  • 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://loheb.co.za/XSRYdR1H?utm_term=biological+molecules+exam+questions+pdf PDF link annotation
    • https://nulifeus.com/~nulife/userfiles/file/47352873416.pdfIn PDF document text
    • http://wadirumshootingstars.com/userfiles/file///7278322017.pdfIn PDF document text
    • http://www.mediacomriccione.it/wp-content/plugins/formcraft/file-upload/server/content/files/1622192c4bc5d3---36560479096.pdfIn PDF document text
    • https://spazmedia.com/wp-content/plugins/formcraft/file-upload/server/content/files/162085bf74491f---tajexibakanesofiniw.pdfIn PDF document text
    • https://zivotzaokny.eu/res/file/36395142027.pdfIn PDF document text
    • http://alde-pace.org/ckfinder/userfiles/files/kamogubobunid.pdfIn PDF document text
    • http://langfordfinancialservices.com/userfiles/files/sanab.pdfIn PDF document text
    • http://seattledesis.com/fckeditor/file/fovijowewumizozusewajile.pdfIn PDF document text
    • http://shmgec.com/Uploadfiles/files/89236549167.pdfIn PDF document text
    • http://electronicaindex.nl/images/uploads/kuvusixedapabazedusode.pdfIn PDF document text
    • http://bephoangdung.vn/uploads/ckfinder/files/5330994632.pdfIn PDF document text
    • http://salonlomi.pl/wp-content/plugins/formcraft/file-upload/server/content/files/1620b958605d7c---94987723901.pdfIn PDF document text
    • https://flexi-cms.com/uploads/file/39730411771.pdfIn PDF document text
    • https://villanakarin.com/userfiles/files/bosurusaferilapaliterad.pdfIn PDF document text
    • http://pollibox.com/assets/uploads/files/49608833645.pdfIn PDF document text
    • http://emaaravm.net/upload/files/gitije.pdfIn PDF document text
    • http://local-minicab.com/survey/userfiles/files/20043280041.pdfIn PDF document text
    • http://hyswimpool.com/userfiles/69573878330.pdfIn PDF document text
    • http://wflyyxzrgs.com/uploadfile/file/d4b94033aca5e98a38f287718e5d2021.pdfIn PDF document text
    • http://www.cabinet-pollet-lille.fr/img/uploaded/file/31953586244.pdfIn PDF document text
    • http://phuwangnam.com/user_file/file/44378057608.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_off00038b19.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x38B19 17760 bytes
SHA-256: 2129448ba1cea77984c1704b842015f25eda839fe2232531b1d00df64aa74969
font_01_sfnt_off0003b9b3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3B9B3 11264 bytes
SHA-256: 033d1bea89abe75eb68411ee14f780c66a5f4be08ce879094d75797e09f27f36
font_02_sfnt_off0003d3ac.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3D3AC 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9

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