Malicious PDF — malware analysis report

Static analysis result for SHA-256 f0c66de4dc82f767…

MALICIOUS

PDF

346.1 KB Created: 2022-03-18 19:54:09 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-04-05
MD5: fb619a5bb1287c382d58870843ca9c05 SHA-1: 1d2f36949b980aa5cd338baab244b680123e5207 SHA-256: f0c66de4dc82f76735ba9e84e77748753026df4e22f216db1e48223db7e51278
174 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.6388

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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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 https://qwert5.com/psum/admin/userfiles/file/buronogufatazuvugixexob.pdf In PDF document text
    • http://sv-orhidea.ru/upload/files/98181678367.pdfIn PDF document text
    • https://comodee.com/wp-content/plugins/formcraft/file-upload/server/content/files/16221018a32017---janesatusexifop.pdfIn PDF document text
    • https://www.digitalsofts.com/wp-content/plugins/formcraft/file-upload/server/content/files/16219365f898fe---11512786346.pdfIn PDF document text
    • http://struna.bg/admin/kcfinder/upload/files/42406684279.pdfIn PDF document text
    • http://www.radioemka.com/wp-content/plugins/formcraft/file-upload/server/content/files/1620caeac88ad1---wepovagul.pdfIn PDF document text
    • http://xdata.pl/app/webroot/img/ckf/files/43324843642.pdfIn PDF document text
    • http://autokaryszczecin.pl/userfiles/file/wofimegupojiwej.pdfIn PDF document text
    • http://amicissiapiemonteisa.it/userfiles/files/ximegesafegotalagopa.pdfIn PDF document text
    • https://fundacionamigosdelmarcaribe.ong/ckfinder/userfiles/files/38493585232.pdfIn PDF document text
    • https://for-auto.dispaco.ro/userfiles/file/pamutoduxebejufakevafuxut.pdfIn PDF document text
    • https://manuvatika.org/userfiles/file/61094332228.pdfIn PDF document text
    • https://10playsolutions.com/clients/softklk/documents/_articles_/file/45867037714.pdfIn PDF document text
    • https://hobbyschuurtje-webwinkel.be/images/userfiles/file/88836280746.pdfIn PDF document text
    • https://mvfht.ca/kcfinder/upload/files/soporameku.pdfIn PDF document text
    • http://www.binghan.my/userfiles/file/36065194473.pdfIn PDF document text
    • http://www.sudeshnamaulik.com/fckimages/file/malejube.pdfIn PDF document text
    • http://anzhero-sudzhensk.verlauf-ekb.ru/admin/ckfinder/userfiles/files/fupevamew.pdfIn PDF document text
    • https://holocaustresearch.pl/nowy/photo/file/kivujaviromepogavixado.pdfIn PDF document text
    • http://auto-rad.pl/userfiles/file/fisagisasazijiza.pdfIn PDF document text
    • https://ekometal.com/kcfinder/upload/files/63460597475.pdfIn PDF document text
    • http://essential-people.com/USAID/file/favomuzefoz.pdfIn PDF document text
    • https://forssah.co/userfiles/file/60614278399.pdfIn PDF document text
    • https://xn--80aujdnb8a.xn--p1ai/kcfinder/upload/files/37764431886.pdfIn PDF document text
    • http://ettorebelfioreliutaio.it/userfiles/files/18114709423.pdfIn PDF document text
    • https://qingyaclocks.com/editor_upload/file/tufupi.pdfIn PDF document text
    • https://yuanyoujie.vip/userfiles/file/79506395470.pdfIn PDF document text
    • https://www.wroclawmodelshow.pl/ckfinder/userfiles/files/9839387113.pdfIn PDF document text
    • https://fullmagicweekend.com/ckfinder/userfiles/files/1368681738.pdfIn PDF document text
    • http://studioingtassinari.eu/userfiles/files/95893574517.pdfIn PDF document text
    • http://rlangkhan.com/upload/userfiles/files/rasupoxekefosutil.pdfIn PDF document text
    • https://deepakbatteries.com/uploads/file/67190315882.pdfIn PDF document text
    • http://rothemtour.com/FileData/ckfinder/files/20220206_ED4423CDBB633DA8.pdfIn PDF document text
    • https://kaktutzhit.by/uploads/files/74901432619.pdfIn PDF document text
    • https://gatia.kone-equicentrum.cz/userfiles/files/naxatoxufudeworogezosib.pdfIn PDF document text
    • http://icloudcleaners.com/uploads/account/autoresponderfiles/27406360016.pdfIn PDF document text
    • https://wirut.co.za/XSRYdR1H?utm_term=free+printable+daily+appointment+schedule+templatePDF 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_off0004f2d9.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off0004f2d9.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0004f2d9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4F2D9 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9
font_01_sfnt_off000509f4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x509F4 19128 bytes
SHA-256: 009766ad6cf7feb010bb92374370e1ee4823e26ab14c380f02c05fc625ce19c4
font_02_sfnt_off00053cc6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x53CC6 11112 bytes
SHA-256: e052703ec530991161870c4fd9b7ea426d3d8e26f9c5bd804bcf864548efeac9