Malicious PDF — malware analysis report

Static analysis result for SHA-256 8472a5f8b56aa4f4…

MALICIOUS

PDF

363.5 KB Created: 2022-03-05 23:15:33 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-04-06
MD5: 983bd160e85402f5b3001f73c9a61b45 SHA-1: 78a7ca31635df40ddfd91568075896056fec4df7 SHA-256: 8472a5f8b56aa4f410f3cc01e4876ae74e8526432e31ba83d6259f6377859fe7
239 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.6641

Heuristics 9

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • PDF link to algorithmically-generated URL high PDF_RANDOM_URL_LINK
    PDF contains a clickable HTTP(S) link whose host looks algorithmically generated (pronounceable-random labels) and whose path/query carries a long high-entropy token. This is the randomized-redirector pattern of malspam phishing lures — the visible document is only a prompt — not a PDF parser vulnerability.
  • Clickable PDF combines external action with parser-evasion structure high PDF_ACTION_PARSER_EVASION
    PDF has an external clickable URI together with object graph or xref structures that make parsers disagree, such as divergent duplicate objects, parser divergence, or xref offset mismatch. That combination is stronger than a plain link: the document is both an outward-action carrier and a parser-confusion/evasion sample.
  • 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.
  • PDF advertises pirated movie streaming/download medium PDF_PIRACY_STREAMING_LURE
    PDF rendered text advertises free full-movie streaming or download using piracy-brand names or a 'full movie + download/free/watch' intent phrase — recovered after folding the styled Unicode confusables the campaign uses to hide those keywords from plain-text detection. These are disposable SEO-spam carriers that route users to malvertising, fake-player, and scam pages; the PDF itself is inert.
  • SEO-redirector lure link (multi-word utm_term) low PDF_SEO_UTM_REDIRECTOR_LINK
    PDF contains a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the search-keyword gateway used by the 'free document download' phishing family. Surfaced as an IOC; on its own this is a low-confidence signal.
  • 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://foto-preiss.at/upload_files/files/zewugigowawalosad.pdf In PDF document text
    • http://santehnika34.ru/images/file/bemositiv.pdfIn PDF document text
    • http://bobas24.pl/Upload/file/95117700254.pdfIn PDF document text
    • http://devison-matras.ru/upload/file/kuveluxukume.pdfIn PDF document text
    • http://halanmilk.com/upload/files/33152221602.pdfIn PDF document text
    • https://www.lorenzofranzone.it/wp-content/plugins/super-forms/uploads/php/files/f41c9d2d8e10f13ffe4e88fdcbccd7f4/tikolifikow.pdfIn PDF document text
    • https://sinditamaraty.org.br/site/public/ckeditor/kcfinder/upload/files/32896027512.pdfIn PDF document text
    • https://inflexi.com/kcfinder/upload/files/milinuzikisosoxadutire.pdfIn PDF document text
    • http://zenobiacultura.it/userfiles/file///najiwexuluwikavojajope.pdfIn PDF document text
    • http://seritour.com/rsm/files/kinefi.pdfIn PDF document text
    • http://ordineveterinarireggioemilia.it/userfiles/files/68617142984.pdfIn PDF document text
    • http://isdoor.ru/uploads/files/6095912305.pdfIn PDF document text
    • https://topas-rus.ru/media-temp/img/uploads/files/dimotakivodikaluzuwaguja.pdfIn PDF document text
    • http://gf-location.fr/wp-content/plugins/formcraft/file-upload/server/content/files/1620a3c5a63851---bowifebut.pdfIn PDF document text
    • https://onutglen.com/caningest/images/file/94532663159.pdfIn PDF document text
    • http://ambulatorioveterinariobubiniregini.eu/userfiles/files/31424928289.pdfIn PDF document text
    • http://saigonradio.com/userfiles/file/22025134741.pdfIn PDF document text
    • http://professional-tuner.at/uploaded/file/suzeloluzovazusi.pdfIn PDF document text
    • https://brusroom.com/wp-content/plugins/super-forms/uploads/php/files/c137ed82976b43ba91a50b0d1fdfb2cf/39200809574.pdfIn PDF document text
    • http://estetycznastomatologia.pl/file/files/46751262346.pdfIn PDF document text
    • https://ppic.net-line.pl/www/js/kcfinder/upload/files/fibaxelelizateb.pdfIn PDF document text
    • https://chauphongasia.com/wp-content/plugins/super-forms/uploads/php/files/ahkmv27jhrbdj1mtpqmo8mjb4j/matenor.pdfIn PDF document text
    • http://vasekurzy.cz/userfiles/file/93781516917.pdfIn PDF document text
    • https://ecoverservice.be/gallery/file/91475233176.pdfIn PDF document text
    • http://imobilestore.de/userfiles/file/wavikuninotiseguz.pdfIn PDF document text
    • http://bastola.org/userfiles/file/49135605413.pdfIn PDF document text
    • https://expungemyrecordnj.com/wp-content/plugins/formcraft/file-upload/server/content/files/161f87af9011f4---29638289300.pdfIn PDF document text
    • http://eugensa.lt/app/webroot/uploads/userfiles/files/galubukibokawizibanu.pdfIn PDF document text
    • https://antalis.emailingmanager.com/uploads/editor/file/7941918202.pdfIn PDF document text
    • http://uniradioweb.info/userfiles/files/68378148458.pdfIn PDF document text
    • https://torreguitart.cat/fotos/subidas/files/fuwikir.pdfIn PDF document text
    • http://phanvienphianam.com/uploads/userfiles/file/62456171614.pdfIn PDF document text
    • http://35ct1.com/images/ckImageFiles/files/supelomaf.pdfIn PDF document text
    • https://loheb.co.za/XSRYdR1H?utm_term=aaruthra+movie++in+kutty+moviesPDF 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_off000540a0.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off000540a0.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000540a0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x540A0 17628 bytes
SHA-256: 5a83e526fea25960c457ac781f3f14d37ca06eaf0ea99141da7989bcb611a5bf
font_01_sfnt_off00056ebb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x56EBB 10680 bytes
SHA-256: 8429e6ffc4de9dea59676454f208eeceebcba7d8f72d3a2bd67003a8fd0ea330
font_02_sfnt_off0005872b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5872B 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9