Malicious PDF — malware analysis report

Static analysis result for SHA-256 93cff1d833fd9d1b…

MALICIOUS

PDF

229.4 KB Created: 2022-02-23 18:57:59 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-05-13
MD5: c250120bcf5a82e9fe3adc22792a089b SHA-1: f29adb2d48d9465bfcae3b3af66ede2c9f8be6db SHA-256: 93cff1d833fd9d1b3bd0dd847369a1287d4b048ce66579ce0fb6d2512d3b4245
166 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.7927

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://www.dj-csnl.nl/wp-content/plugins/formcraft/file-upload/server/content/files/160f8c5c244cd9---53750435860.pdf In PDF document text
    • https://marblobaths.com/app/webroot/img/files/nepenakenabijovepez.pdfIn PDF document text
    • http://archpiudue.com/userfiles/files/guremezuremavusubakifim.pdfIn PDF document text
    • https://shoppingplanet.cityplanet.ro/ckfinder/userfiles/files/56452322197.pdfIn PDF document text
    • http://www.elsecretodelolivo.com/wp-content/plugins/formcraft/file-upload/server/content/files/160f188808743e---bejikibanadarawoxove.pdfIn PDF document text
    • https://www.sidertest.it/wp-content/plugins/formcraft/file-upload/server/content/files/1619f3167f3730---57478088884.pdfIn PDF document text
    • http://madervaf.com/admin/kcfinder/upload/files/87523592524.pdfIn PDF document text
    • http://newgatedesign.com/Images_upload/files/xadupuboboginebemenu.pdfIn PDF document text
    • https://www.temsilcisitesi.com/wp-content/plugins/formcraft/file-upload/server/content/files/162116a04e3af9---xatemijamo.pdfIn PDF document text
    • http://gira-classix.su/kcfinder/upload/files/benakewovokep.pdfIn PDF document text
    • http://harringtonassociateslaw.com/Test/JabzMedicalBillingService/userfiles/file/22412355191.pdfIn PDF document text
    • https://thegmsbihta.eruditiontech.com/userfiles/file/74627523015.pdfIn PDF document text
    • http://www.banzolaassociati.com/gestlab/kcfinder/upload/files/87655571347.pdfIn PDF document text
    • https://vegas-shop.net/uploads/files/duweborekajajujubefo.pdfIn PDF document text
    • https://dedywiredja.com/wp-content/plugins/formcraft/file-upload/server/content/files/16187a97002203---bejakekumarifiliwip.pdfIn PDF document text
    • http://studiomilano.eu/userfiles/files/7917140839.pdfIn PDF document text
    • http://dotacjedlaoze.pl/userfiles/file/3590771148.pdfIn PDF document text
    • http://ministryofrum.com/memlogos/file/26846940106.pdfIn PDF document text
    • http://www.caribbeandentist.com/wp-content/plugins/formcraft/file-upload/server/content/files/161a4768f6dd4e---galupajebomi.pdfIn PDF document text
    • https://e3tam.com/assets/uploads/file/52221160429.pdfIn PDF document text
    • http://westmoorclassof1965.com/clients/5/52/52ec68f2b927accf75267cb07bfcc891/File/33634676447.pdfIn PDF document text
    • http://lesbambousbleus.fr/ckeditor/upload/files/liwifepevon.pdfIn PDF document text
    • http://yey.uw52.com/upload/files/71737861196.pdfIn PDF document text
    • http://doxetrilinh.com/media/ftp/file/15118356030.pdfIn PDF document text
    • https://kanat.com/upload/ckfinder/files/70568294350.pdfIn PDF document text
    • http://studio5r.com/userfiles/files/45577480103.pdfIn PDF document text
    • https://spheresignal.com/app/webroot/userfiles/files/dalolog.pdfIn PDF document text
    • http://roycraft.ca/userfiles/file/luwixugaxirumos.pdfIn PDF document text
    • https://betenrealestate.com/sites/default/files/file/rufulidonoba.pdfIn PDF document text
    • http://gentry.work/updatefiles/file/mulotabetotedokewevo.pdfIn PDF document text
    • http://tbff-bygg.se/img/files/luwiwomome.pdfIn PDF document text
    • http://yakutiaprime.ru/SITE/files/editor/file/zirelukafeminab.pdfIn PDF document text
    • http://megamento.com/_UploadFile/Images/file/36791710407.pdfIn PDF document text
    • http://lagerunda.it/public/upload/file/lebamul.pdfIn PDF document text
    • https://taichielite.com/louis/taichi/ckfinder/userfiles/files/99922078807.pdfIn PDF document text
    • https://lazav.co.za/XSRYdR1H?utm_term=sheets+in+google+docsPDF link annotation
    • http://www.cerel.eu/images/wyswig_images/file/tenekomigabis.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_off00031e89.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off00031e89.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00031e89.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x31E89 10464 bytes
SHA-256: 2027784696217870c9eff9fe0eb26c24ce8b2c2afeb291d9c2760dd507caf809
font_01_sfnt_off000335fb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x335FB 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9
font_02_sfnt_off00034d16.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x34D16 21836 bytes
SHA-256: 500b6b903ee20b17c89de69e4eea745b9e3e9951ae993fc7ebef10380f3ac1a6