Malicious PDF — malware analysis report

Static analysis result for SHA-256 4250facf83879ae0…

MALICIOUS

PDF

260.7 KB Created: 2022-02-20 22:48:39 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-15
MD5: 037f4eb489ff6807fa7115e30f29935a SHA-1: fa1672ed6b3e5253abc09c972e9f1d20d844844d SHA-256: 4250facf83879ae06728dda213bbf836aef58be79d5f4856927d45184f676dba
166 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9562

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://yubit.co.za/XSRYdR1H?utm_term=excel+workbooks+add+template PDF link annotation
    • http://bebelino.ru/userfiles/file/batovuk.pdfIn PDF document text
    • http://olsztyntransportmedyczny.pl/userfiles/file/66613502915.pdfIn PDF document text
    • http://osteriadelcampanile.com/userfiles/files/66438011715.pdfIn PDF document text
    • https://argumentua.com/i/file/32438867738.pdfIn PDF document text
    • http://sadrokartonyhk.cz/images/fckfiles/file/47651644981.pdfIn PDF document text
    • http://sbairs.com/datas/files/20556237627.pdfIn PDF document text
    • http://www.lifestaralberta.com/wp-content/plugins/formcraft/file-upload/server/content/files/161767dacc083b---47653716610.pdfIn PDF document text
    • http://xoblates.com/clients/e/e0/e08cfb93fb97b00c28394d0532709dc9/File/sigoxuwepuxekofevibepagig.pdfIn PDF document text
    • https://jesssmithtri.com/jesssmith/ckfinder/userfiles/files/dijerikogexuwilavidu.pdfIn PDF document text
    • http://bielle-srl.com/userfiles/files/94978855232.pdfIn PDF document text
    • http://mixmarketing.vn/upload/fck/file/53639992540.pdfIn PDF document text
    • https://gpuhub.net/wp-content/plugins/super-forms/uploads/php/files/4rjmae7nv5rs4dm1541lcaqbl6/94803264349.pdfIn PDF document text
    • https://melnikhouse.com/userfiles/file/sogivexazorulexa.pdfIn PDF document text
    • http://amunt.madteam.net/ckfinder/userfiles/files/jinexivudadisojujefikebu.pdfIn PDF document text
    • https://ietc-oman.saktoon.com/userfiles/files/nigolonamigoxikozu.pdfIn PDF document text
    • http://zoltysnieg.pl/pliki_wyswig/files/bujokijarupuner.pdfIn PDF document text
    • http://bindashnews.com/userfiles/file/94476743096.pdfIn PDF document text
    • http://mini-garden.ru/userfiles/file/gozogotawedewu.pdfIn PDF document text
    • http://www.thelawchamber.com/wp-content/plugins/formcraft/file-upload/server/content/files/1616626708f49d---kowunefukejizox.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_off0003a110.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3A110 10884 bytes
SHA-256: 31dcd508c39ea3830dc89229512cb1ee73218cc67ba61c60dc8c916669983404
font_01_sfnt_off0003ba2b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3BA2B 19376 bytes
SHA-256: 7f6b48954ec82963e0f66da03606c728b341b820f9404d3e2097e0f6ea68f87b
font_02_sfnt_off0003ed6e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3ED6E 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9

Open this report in the interactive analyzer, or submit your own file for analysis.