Malicious PDF — malware analysis report

Static analysis result for SHA-256 18ac9d853cb3800d…

MALICIOUS

PDF

491.0 KB Created: 2022-02-28 20:48:31 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-05-09
MD5: da2e1ab189e47b522c268b8289da0d6e SHA-1: 02e022d9527dbbc52eebda40ebf90a24641939f0 SHA-256: 18ac9d853cb3800dd30b78a062a5e1944bd5ea06fc51cbc69335d2a02e323d06
196 Risk Score

Machine Learning

  • Nyx PDF Classifier suspicious score 0.4741

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://norin.co.za/XSRYdR1H?utm_term=blank+fedex+bill+of+lading+form PDF link annotation
    • http://mvpvo.ru/userfiles/file/36599566251.pdfIn PDF document text
    • http://lngpetro.com/userfiles/file/dokoveretupenibotetusula.pdfIn PDF document text
    • http://churchliferesources.org/wp-content/plugins/formcraft/file-upload/server/content/files/162077b7b711bb---zebuxipep.pdfIn PDF document text
    • http://qianlong99.org/ckfinder/userfiles/files/52117883732.pdfIn PDF document text
    • http://www.medicalalliedtraining.com/wp-content/plugins/formcraft/file-upload/server/content/files/16210f6aad2b1c---798842688.pdfIn PDF document text
    • https://esvigo.com/upload/files/tutora.pdfIn PDF document text
    • http://ovodaprojekt.lenti.hu/feltoltes/files/99417887869.pdfIn PDF document text
    • http://tiramisu-o.com/yamituki-n/uploads/files/nogopomimukax.pdfIn PDF document text
    • http://yachtandgulet.com/userfiles/file/najaxavototorowi.pdfIn PDF document text
    • http://gattoneva.pl/pages/userfiles/file/44782741970.pdfIn PDF document text
    • https://presentkompaniet.com/img/content/file/wijuruvawuvezarimujop.pdfIn PDF document text
    • http://crosswaysrecruitment.com/userfiles/file/4083967388.pdfIn PDF document text
    • http://cokhivietuc.webthoidai.com/img-vietuc/files/fiputapime.pdfIn PDF document text
    • http://generaltubi.com/container/ckfiles/files/vajevadefuwikedewipamof.pdfIn PDF document text
    • https://www.trungtammaychieu.com/ad-min/js/libs/kcfinder/upload/files/fowimolul.pdfIn PDF document text
    • http://soojuspilt.ee/files/file/44463541613.pdfIn PDF document text
    • http://mirembeestate.co.ug/wp-content/plugins/formcraft/file-upload/server/content/files/161fd20724672c---sekemiwabomazem.pdfIn PDF document text
    • http://aleksey-mihalchik.ru/upload/files/nafexiketekabab.pdfIn PDF document text
    • http://slowjamsundays.com/wp-content/plugins/formcraft/file-upload/server/content/files/16206fdc33489a---defajuruvuvix.pdfIn PDF document text
    • http://artvideo74.ru/upfiles/files/45172212734.pdfIn PDF document text
    • http://nc2e.fr/wp-content/plugins/formcraft/file-upload/server/content/files/16205dc8923219---787003283.pdfIn PDF document text
    • http://com123.vn/uploads/file/bifejoxisa.pdfIn PDF document text
    • http://tunesistudio.eu/userfiles/files/87809047982.pdfIn PDF document text
    • http://cisseo.net/userfiles/files/30910035927.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_off000737c1.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off000737c1.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000737c1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x737C1 20288 bytes
SHA-256: e1a2ed7d38e8aa8ced1ebb74029b3f270ed04356af89ca31a71015d998edbdbe
font_01_sfnt_off00076d26.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x76D26 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9
font_02_sfnt_off00078446.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x78446 10816 bytes
SHA-256: 86d12d32d41ff62e2318e324270feb49b52075d2e6932b648fcc955499e96f04