Malicious PDF — malware analysis report

Static analysis result for SHA-256 cb8ec626a2dc8fe2…

MALICIOUS

PDF

280.6 KB Created: 2022-03-29 02:37:13 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-05-08
MD5: 7248b18a67aebe63aad97310fbf80d04 SHA-1: 4446e6c8916e6f2f8a29a49364761b61e81b91ee SHA-256: cb8ec626a2dc8fe22e8baef0ed322fa539c81220e12f4edff12ec7ab85227bb2
226 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.6467

Heuristics 7

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • Travel-support phone-number stuffing scam critical SE_TRAVEL_SUPPORT_PHONE_SCAM
    Document repeats phone numbers in airline/travel/refund/support language, often across multiple regional phrasings. This matches SEO/support-scam PDFs that impersonate airlines or travel brands and route users to attacker-controlled call centers rather than a normal travel document.
  • 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=midland+xtra+talk+lxt600 PDF link annotation
    • http://unite-chem.com/upload/files/18085103401.pdfIn PDF document text
    • http://xn--80aafjbaeihgganggf9ajkncugh2a.xn--p1ai/pict/file/finibore.pdfIn PDF document text
    • http://clickvay.com/upload/files/zewajutotu.pdfIn PDF document text
    • http://dtyxbpzx.com/filespath/files/20220314173226.pdfIn PDF document text
    • http://retroscope.menu-card-maker.com/uploads/files/merisovujulo.pdfIn PDF document text
    • http://cohn-vossen.com/wp-content/plugins/formcraft/file-upload/server/content/files/162088dacdc3b2---4739121205.pdfIn PDF document text
    • http://www.fishandcosolicitors.com/uploads/files/53019959500.pdfIn PDF document text
    • https://xeroxexpres.cz/userfiles/file/81754855059.pdfIn PDF document text
    • http://sfalojistik.com/userfiles/file/79679250907.pdfIn PDF document text
    • https://www.ttmagazin.com/assets/admin/js/plugins/kcfinder/upload/files/zevufodulutogilidinado.pdfIn PDF document text
    • http://motolargo.pl/userfiles/file/63324300369.pdfIn PDF document text
    • https://firstrecycler.oltenia-imobiliare.ro/userfiles/file/19012457833.pdfIn PDF document text
    • http://a2kat.ru/userfiles/file/29603171753.pdfIn PDF document text
    • https://szemere-iskola.hu/images/files/tonenisowanu.pdfIn PDF document text
    • http://nationalherbo.com/userfiles/file/jakamatoratesubumi.pdfIn PDF document text
    • http://xn--90aweabvm.xn--p1ai/ckfinder/userfiles/files/tizulozitinoromimokigale.pdfIn PDF document text
    • https://wacee.net/wp-content/plugins/formcraft/file-upload/server/content/files/16218c17791240---33905175115.pdfIn PDF document text
    • http://www.maarsehoveniers.nl/wp-content/plugins/formcraft/file-upload/server/content/files/1624108d090041---radaxumubuxudide.pdfIn PDF document text
    • http://janeblondsalon.cz/files/upload/files/26411586930.pdfIn PDF document text
    • https://queeneskuvo.hu/adminfiles/files/77646200854.pdfIn PDF document text
    • http://ghettaetamionarchitetti.it/userfiles/files/62025940959.pdfIn PDF document text
    • http://ch-bovi.com/upload/files/rubaladubolozovadu.pdfIn PDF document text
    • http://giorgimpianti.com/userfiles/file/zuxitefekagavigagawuf.pdfIn PDF document text
    • http://storemisr.com/uploads/files/vivojufubadulufu.pdfIn PDF document text
    • http://xaydungtruongsinh.com/public/assets/ckeditor/kcfinder/upload/files/gelafovoxejawavoxiporixo.pdfIn PDF document text
    • https://www.kindspring.org/inc/ckfinder/userfiles/files/baxubotadu.pdfIn PDF document text
    • http://robwalker.net/fckupload/file/kizezizawira.pdfIn PDF document text
    • http://www.forexfunction.com/ckeditor/kcfinder/upload/files/47586027743.pdfIn PDF document text
    • http://thietbianninh188.com/uploads/files/wunigejiwubavalidoxe.pdfIn PDF document text
    • http://maxbrio.kr/files/files/83586775837.pdfIn PDF document text
    • https://anitt.in/ckfinder/userfiles/files/44297040141.pdfIn PDF document text
    • https://www.beltiar.by/css/assets/plugins/kcfinder/upload/files/8918746317.pdfIn PDF document text
    • http://tsetv.kz/app/webroot/js/kcfinder/upload/files/gekimiguwek.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 extracted file (font_00_sfnt_off0003f688.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off0003f688.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0003f688.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3F688 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9
font_01_sfnt_off00040da3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x40DA3 17760 bytes
SHA-256: adac2b948b945f9e498cd02187a31fb265e40fccc4a596b25591e0e589b03391
font_02_sfnt_off00043ba3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x43BA3 10300 bytes
SHA-256: 38172070dda66c5c91b8105d0d8e847aa5f7e6d04672080b5d95f2d40e835000