Malicious PDF — malware analysis report

Static analysis result for SHA-256 5524659aff417222…

MALICIOUS

PDF

366.3 KB Created: 2022-02-15 17:51:28 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-05-19
MD5: 4841ce6b1c769e42b6cb143d37fdba48 SHA-1: 74bf9f21d982ed06d9d4d379975cd6e96f6512bd SHA-256: 5524659aff4172228e86ee413f5a9905acb4ad851d6df50c5353abd7ef0e4b41
226 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.6318

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 http://taiwanglassgroup.cn/userfiles/file/28199375125.pdf In PDF document text
    • http://sententtech.com/file_media/file_image/file/8878238437.pdfIn PDF document text
    • http://dmkert.hu/files/file/digezuxigajetabiduzalow.pdfIn PDF document text
    • http://t-eamplus.de/web/editor/files/71998332044.pdfIn PDF document text
    • http://mariamozharova.ru/uploads/files/vijefakojoxetojenig.pdfIn PDF document text
    • http://flygarfield.net/userfiles/file/55384224887.pdfIn PDF document text
    • http://aaykpn.com/uploads/editor/files/bomererutojuxaxipefakuwub.pdfIn PDF document text
    • http://stromzeleny.cz/file/xarodojamemewujezizeg.pdfIn PDF document text
    • https://sodigital.it/wp-content/plugins/formcraft/file-upload/server/content/files/1618733a670283---65979517840.pdfIn PDF document text
    • https://k9-warrior.com/wp-content/plugins/super-forms/uploads/php/files/1thk08hv2g2894lik1gap43itb/89311726920.pdfIn PDF document text
    • http://xmzs.org/userfiles/file/kaxodawugewufos.pdfIn PDF document text
    • http://arieslog.com/assets/ckeditor/kcfinder/upload/files/buvenezem.pdfIn PDF document text
    • http://canlook.ru/userfiles/files/6475272493.pdfIn PDF document text
    • http://laptopplus.be/app/webroot/files/userfiles/files/furakubized.pdfIn PDF document text
    • http://canphantich.net/Images_upload/files/wakib.pdfIn PDF document text
    • http://arcos-eff.it/userfiles/files/27031675844.pdfIn PDF document text
    • http://findmealocalpainter.com/insurazon/admin/userfiles/file/49721039783.pdfIn PDF document text
    • https://mimpishio1bet.com/contents/files/97578941111.pdfIn PDF document text
    • http://www.aktivnistari.eu/uploads/files/42969976391.pdfIn PDF document text
    • https://adian.eus/files/galeria/files/56030104562.pdfIn PDF document text
    • http://sonnenheizungen.ch/fckeditor/editor/images/file/junut.pdfIn PDF document text
    • http://sportschoolindex.nl/images/uploads/20879023764.pdfIn PDF document text
    • http://www.radioemka.com/wp-content/plugins/formcraft/file-upload/server/content/files/16115e8249a68a---75130021548.pdfIn PDF document text
    • https://wrd13.com/force/file/921254144.pdfIn PDF document text
    • http://banquat.com/userfiles/files/5279927595.pdfIn PDF document text
    • http://ledlight-lamp.com/mingyi/images/userfiles/file/42142018984.pdfIn PDF document text
    • http://pegastelco.com/pictures/files/sutobopikexejosibe.pdfIn PDF document text
    • http://electriccityusa.com/images/fck_uploads/file/40405472411.pdfIn PDF document text
    • https://treasurehunterdetectors.com/ckfinder/userfiles/files/nugodupowabumidukepevumaj.pdfIn PDF document text
    • http://nccutrackandfieldnation.com/clients/2/2c/2cea5a7e730406ee40dfbbde6098010c/File/bupurok.pdfIn PDF document text
    • http://schody.leszczynskie.net/userfiles/file/82497448634.pdfIn PDF document text
    • https://aymexco.eu/ckfinder/userfiles/files/woduzavunifufelavafavato.pdfIn PDF document text
    • http://www.investing-in-women.com/wp-content/plugins/formcraft/file-upload/server/content/files/161648e7142cf5---turow.pdfIn PDF document text
    • http://daiichihr.com/uploads/news_file/48284621852.pdfIn PDF document text
    • https://colod.co.za/XSRYdR1H?utm_term=topology+without+tears+answers+of+chaptersPDF 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_off0005483f.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off0005483f.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0005483f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5483F 18672 bytes
SHA-256: 5cf65bf99892913d37044377df40e4e06e0b43dc4b96d6131c369236263e6034
font_01_sfnt_off00057894.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x57894 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9
font_02_sfnt_off00058fb4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x58FB4 11024 bytes
SHA-256: b197b52c6dbfe18edc1ca0f2fa22826adbcbeefcc1fbd1eb8c5dc9ed6e9ab22d