Malicious PDF — malware analysis report

Static analysis result for SHA-256 450c50c1223c549a…

MALICIOUS

PDF

413.5 KB Created: 2022-02-06 09:10:55 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-04-25
MD5: fea5032a5f9b3128ca6cd2c8e73b48a5 SHA-1: 9dfe373b42a5ac474e6669170f2bc6d340002cf1 SHA-256: 450c50c1223c549abab3765c733a63b70fb7c2f3084f3b5293cbddd1a1504f4f
166 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.5841

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 http://hidra.it/ckfinder/userfiles/files/23964612894.pdf In PDF document text
    • https://grdr.org/paidel/ckfinder/userfiles/files/10312245645.pdfIn PDF document text
    • https://hotelgaric.com/upload/datoteke/jebejop.pdfIn PDF document text
    • http://hoteldanang.vn/uploads/images/files/kowuduzivevegiwasirum.pdfIn PDF document text
    • https://mytutr.com/wp-content/plugins/super-forms/uploads/php/files/a3c1259f5ffa8db6f4e7fe8ff3b33943/41935576505.pdfIn PDF document text
    • http://www.chiringuitomediterraneo.com/ckfinder/userfiles/files/69185967532.pdfIn PDF document text
    • https://mikludava.lt/images/files/gizuwewuno.pdfIn PDF document text
    • http://obrienbuilders.com/userfiles/file/pebusovukorebaduzidabotu.pdfIn PDF document text
    • https://elitteaccesorios.com/wp-content/plugins/super-forms/uploads/php/files/6tjoqt5vhmoap5sbjisr2opokh/pelujogevu.pdfIn PDF document text
    • http://hongphuc.vn/userfiles/file/28007352522.pdfIn PDF document text
    • https://tectrongim.com/uploads/file/24017308763.pdfIn PDF document text
    • https://tigaintan.com/contents//files/zagunitopilojuzesesiwij.pdfIn PDF document text
    • http://qunjl.com/userfiles/files/boguzipifebomanarubiga.pdfIn PDF document text
    • http://cpviettin.com/upload/files/relelolamilisuneterifam.pdfIn PDF document text
    • http://kleinschadenexperte.de/userfiles/file/39221429508.pdfIn PDF document text
    • http://tcpartners.vn/kcfinder/upload/files/sanivesawuxumaxowe.pdfIn PDF document text
    • http://suliaok.com/v15/Upload/file/2021822010191697.pdfIn PDF document text
    • http://khautrangkhangviet.com/upload/img/files/99978835961.pdfIn PDF document text
    • http://olimpic.hu/ckfinder/userfiles/files/36540048095.pdfIn PDF document text
    • http://normel.org/files/upload/file/nujozerodoluxexafenag.pdfIn PDF document text
    • https://keyseries.us/userfiles/file/tuxawebemoxin.pdfIn PDF document text
    • https://vdbergelectro.nl/wp-content/plugins/super-forms/uploads/php/files/3cafaa60956e023423fe4f10afabf794/60844417838.pdfIn PDF document text
    • https://www.la-melodie-des-saveurs.fr/ckfinder/userfiles/files/12045752276.pdfIn PDF document text
    • http://classicalgardenfountains.com/uplds/file/pabuvolulabemo.pdfIn PDF document text
    • https://vietnamwelder.vn/uploads/news_file/80257641396.pdfIn PDF document text
    • http://ongnuocdenhat.com/upload/files/37639758473.pdfIn PDF document text
    • https://lideregitimpaketleri.com/calisma2/files/uploads/bagiru.pdfIn PDF document text
    • https://maymac.info/userfiles/file/megoza.pdfIn PDF document text
    • https://colod.co.za/XSRYdR1H?utm_term=cantigas+de+amor+e+de+amigo+pdfPDF 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_off0006081d.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off0006081d.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0006081d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6081D 10828 bytes
SHA-256: 57bbbfdcf394644c90dfc3a852d129839b40a39012215d80c354df80a9b19936
font_01_sfnt_off000620e7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x620E7 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9
font_02_sfnt_off00063802.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x63802 18436 bytes
SHA-256: 042573573033e73ec6931a6798efc5a88fb9ee7ffb41f5e3a1739c67e71f719d