Malicious PDF — malware analysis report

Static analysis result for SHA-256 98f1da755c37c5c3…

MALICIOUS

PDF

386.3 KB Created: 2022-02-04 04:29:37 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-07-08
MD5: 29d77e8a8642575be2f3af887aa8c805 SHA-1: 77a7ad085f35f8e0ecfd62e16f0b7cf3d4a02da3 SHA-256: 98f1da755c37c5c362ec48e30b22d7dc7a9f0c9b59dc92bd61684b87125f1d6a
191 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.6300

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
  • 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.
  • 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.
  • 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://zzps.pl/userfiles/file/guzesinofimozugud.pdf In PDF document text
    • https://balbok.net/admin/ckfinder/userfiles/files/negexowazilofik.pdfIn PDF document text
    • https://www.supremecaravans.com.au/application/third_party/ckfinder/userfiles/files/86752752606.pdfIn PDF document text
    • http://be-now.pl/userfiles/file/87974018364.pdfIn PDF document text
    • https://choiceenergynetwork.com/wp-content/plugins/super-forms/uploads/php/files/f93d4bc8e6f9b5244d819a273a2f209f/supugagupituniw.pdfIn PDF document text
    • http://market-oborudovanie.ru/upload/file/81679898414.pdfIn PDF document text
    • https://www.chablis-gautherin.com/ckfinder/userfiles/files/nuduwixavevujegulazikebab.pdfIn PDF document text
    • https://opsclown.it/ckfinder/userfiles/files/6091285976.pdfIn PDF document text
    • http://cuspsurgeons.com/userfiles/file/78453517189.pdfIn PDF document text
    • https://alcc.vn/wp-content/plugins/super-forms/uploads/php/files/9312q4ei3jucsm9ap58v4u9fnu/jururupixawi.pdfIn PDF document text
    • https://transmar.biz/ckfinder/userfiles/files/modufo.pdfIn PDF document text
    • http://jobcred.com/rk/jobcred/uploads/image/file/95026111725.pdfIn PDF document text
    • https://houseofwax.eu/kcfinder/upload/files/49211285807.pdfIn PDF document text
    • https://primeodontorj.com/wp-content/plugins/super-forms/uploads/php/files/ad127ec66c3f8c29a1179ba7e8dd6d70/pejuxupefekawiveninavu.pdfIn PDF document text
    • https://bold-iot.com/uploads//files/202108050452514678.pdfIn PDF document text
    • http://nanoscopy.ru/uploads/files/kugofusaramonejadi.pdfIn PDF document text
    • http://tuanlongland.com/upload/files/pamejimumazoveb.pdfIn PDF document text
    • https://steklo-shik.ru/userfiles/file/zavaduguz.pdfIn PDF document text
    • http://sunrui-ti.com/d/files/vakapipubonewaladijizano.pdfIn PDF document text
    • http://www.christinemartin.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/161dc04dd26138---8699948603.pdfIn PDF document text
    • http://concienciafiscal.com/kcfinder/upload/files/gorebo.pdfIn PDF document text
    • http://1mosref.ru/ckfinder/userfiles/files/dabewawotesoxikesa.pdfIn PDF document text
    • https://conexus-study-abroad-travel.com/ckfinder/userfiles/file/fonomusisagajeremixoguvib.pdfIn PDF document text
    • https://www.gs-gleichmann.de/wp-content/plugins/formcraft/file-upload/server/content/files/16164eeda80cd9---76843892840.pdfIn PDF document text
    • http://adice-area.com/pictures/files/8814064900.pdfIn PDF document text
    • https://inprovitcaribe.com/ckfinder/userfiles/files/sebuw.pdfIn PDF document text
    • http://yacpa.org/yacpafiles/file/sixozuwarovides.pdfIn PDF document text
    • http://alburigiott.it/userfiles/files/xizabixavesazixuzuxobubo.pdfIn PDF document text
    • http://pro-group.ru/userfiles/file/32156431965.pdfIn PDF document text
    • https://www.beadvised.co.uk/wp-content/plugins/super-forms/uploads/php/files/067b95c508736b5bbfaf276b7d85f3fc/fituvipezagi.pdfIn PDF document text
    • http://ci-tesco.com/kcfinder/upload/files/wimetaroveso.pdfIn PDF document text
    • https://tevav.co.za/XSRYdR1H?utm_term=hd+movies+2019+app+apkPDF link annotation
    • https://bizdrive.nl/wp-content/plugins/formcraft/file-upload/server/content/files/1/1618c6c8e5c3a1---13523487022.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_off00059b5a.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off00059b5a.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00059b5a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x59B5A 17676 bytes
SHA-256: cb3d03016f99c34d9735b9ce840423d648a95aa36fccd6fb3949d1cecabf65cf
font_01_sfnt_off0005c9a5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5C9A5 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9
font_02_sfnt_off0005e0c5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5E0C5 10816 bytes
SHA-256: 88fa7fd142f74b10f0a890d8e28668ffc81f6d2ad83795d917bfac59432f76da