Malicious PDF — malware analysis report

Static analysis result for SHA-256 552c468b668b1a7b…

MALICIOUS

PDF

359.3 KB Created: 2022-02-04 22:11:50 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-05-19
MD5: 67e82b51f9706798213958614b74fb1a SHA-1: 63d96fbbe6be492132f896fbce3d67569f968de1 SHA-256: 552c468b668b1a7b12fd7097d8b7e155099ed9a22c8c1b2b06ab09b807d3d6d5
166 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.5879

Heuristics 6

  • 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.
  • 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://tid.vn/upload/files/jutudurojifeninave.pdf In PDF document text
    • http://sdtrafficticketlawyer.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/759888321.pdfIn PDF document text
    • http://telek-trans.hu/editor_up/fofularupelafeletufuzawi.pdfIn PDF document text
    • http://aztkgb.love-mrt.com/upload/files/72660709909.pdfIn PDF document text
    • https://3redsquares.com/phpsites/vertical_living/uploads/file/gopabinuwoguzusokubukodid.pdfIn PDF document text
    • https://garmin2.ddbseven.cl/userfiles/file/biloz.pdfIn PDF document text
    • https://www.dwp-balkan.org/kcfinder/upload/files/zarulupekejurax.pdfIn PDF document text
    • http://verypool.cn/images/upload/File/73006095451.pdfIn PDF document text
    • http://twfbs.com/ckfinder/userfiles/files/18581538923.pdfIn PDF document text
    • http://inter-travel.hu/_user/file/tuvipabesap.pdfIn PDF document text
    • https://portalbime.com/UploadedFiles/New/file/68804606517.pdfIn PDF document text
    • http://ophtalmic-overnight.fr/wp-content/plugins/formcraft/file-upload/server/content/files/161a9c006a5693---jolosanopogivifu.pdfIn PDF document text
    • https://www.ediliziaindustriale.com/wp-content/plugins/formcraft/file-upload/server/content/files/1618f7dc439cf7---74814913538.pdfIn PDF document text
    • https://olafree.gr/admin/images/nopikotosepev.pdfIn PDF document text
    • http://specimport.by/files/files/lupujaxutu.pdfIn PDF document text
    • https://dtd.com.pk/ckfinder/userfiles/files/90075026705.pdfIn PDF document text
    • http://www.immat.org.tr/kcfinder/upload/files/likutot.pdfIn PDF document text
    • https://cmoretv.com/userfiles/77402307816.pdfIn PDF document text
    • http://krzysztofmalec.pl/gfx/fck/file/xojut.pdfIn PDF document text
    • http://phannhan.vn/files/usersfiles/files/fofatutulebelogukigakusir.pdfIn PDF document text
    • http://ibconsulting.it/userfiles/files/10567786307.pdfIn PDF document text
    • http://tienhasteel.com/app/webroot/upload/files/rutisifel.pdfIn PDF document text
    • http://gelikonline.ru/content/Files/mojajajenijefavul.pdfIn PDF document text
    • https://onlineadda.net/ckfinder/userfiles/files/44061793129.pdfIn PDF document text
    • https://cbmpolska.pl/www/js/kcfinder/upload/files/32625953056.pdfIn PDF document text
    • https://k-kompany.ru/wp-content/plugins/super-forms/uploads/php/files/2f3432213d1603d51d66cb382a1c3dab/83280128256.pdfIn PDF document text
    • https://sergiomauri.com/images/file/92734747889.pdfIn PDF document text
    • https://bartonsteel.com/tony/barton/ckfinder/userfiles/files/22313159779.pdfIn PDF document text
    • http://quetthe.com/upload/files/loroxi.pdfIn PDF document text
    • http://accuway.yun2u.com/upload/files/tubipitukap.pdfIn PDF document text
    • https://impariant-club.ru/wp-content/plugins/super-forms/uploads/php/files/053637d66d4cdc37496d15102413af0e/5663513582.pdfIn PDF document text
    • https://aimtronu.org/userfiles/file/jogit.pdfIn PDF document text
    • https://ocvirapuato.com.mx/wp-content/plugins/super-forms/uploads/php/files/14259b449f512c189869ad5b1021c378/vatilelovaveg.pdfIn PDF document text
    • https://vidaleve.ind.br/ckfinder/userfiles/files/33296759421.pdfIn PDF document text
    • http://thechinatailor.com/uploadfile/file/2021120101293973499.pdfIn PDF document text
    • http://rsentco.com/upload/file/dafupadukovolivimulutu.pdfIn PDF document text
    • http://theofficefurniturestore.com/ckfinder/userfiles/files/mewalawujadara.pdfIn PDF document text
    • http://marinda.ru/pics/images/file/bavujepiw.pdfIn PDF document text
    • https://lovig.co.za/XSRYdR1H?utm_term=anatomie+l%27+appareil+digestif+pdfPDF 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_off00052bfd.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off00052bfd.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00052bfd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x52BFD 19692 bytes
SHA-256: 05c9f2043165d839417799954eea08dc1f2e7b01e2cf0355d26e8c7d23d79134
font_01_sfnt_off00055d36.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x55D36 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9
font_02_sfnt_off00057456.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x57456 10856 bytes
SHA-256: 83032b23e22f6b0555b779876b2d1522c21a0741ebf6cb0cef666234e4d407c8