Malicious PDF — malware analysis report

Static analysis result for SHA-256 5d3cd1aa7f7dd266…

MALICIOUS

PDF

269.3 KB Created: 2022-02-15 04:50:22 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-05-14
MD5: 13312622535b2884773c546b1dd1f39b SHA-1: 3778b91bebf86404414e75119c1341598de8595a SHA-256: 5d3cd1aa7f7dd266f628a2c2c69cb90493e99ba0ba3261b8e2f8c9f78a21c197
166 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.7877

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 https://colod.co.za/XSRYdR1H?utm_term=carnivores+dinosaur+hunter+1998 PDF link annotation
    • https://mtmhomeschool.com/mycms/uploadedimages/editorUploadedImages/file/suvezopalotevokobilu.pdfIn PDF document text
    • https://52fantasies.com/home/holly/public_html/ckfinder/userfiles/files/wujubod.pdfIn PDF document text
    • http://gsoam.ge/wp-content/plugins/formcraft/file-upload/server/content/files/1619b4368be053---55555680654.pdfIn PDF document text
    • https://marblobaths.ph/app/webroot/img/files/78920480851.pdfIn PDF document text
    • https://aademvegabaja.org/images/image/derofo.pdfIn PDF document text
    • http://xn--80aatg4aaaddkhfhbf3evf.xn--p1ai/ckfinder/userfiles/files/18959867215.pdfIn PDF document text
    • http://stringquartet.biz/web/images/fck/file/nofaxikafiwa.pdfIn PDF document text
    • https://jerseyshorepirates.com/userfiles/files/xikudigukipigi.pdfIn PDF document text
    • http://hondatayho.vn/images/ckeditor/files/datuzizipevewovikanu.pdfIn PDF document text
    • http://faespi.com.br/kcfinder/upload/files/38829131552.pdfIn PDF document text
    • https://vernadoc.com/wp-content/plugins/super-forms/uploads/php/files/0032158db01c190c7a8b5e75329692b2/39704784108.pdfIn PDF document text
    • https://relaxationplusmn.com/wp-content/plugins/super-forms/uploads/php/files/9ad601b7240bcb746d6fad652e684ca7/diguko.pdfIn PDF document text
    • http://efuegypt.org/userfiles/file/38345473950.pdfIn PDF document text
    • http://www.restaurantegrellada.com/adminc/kcfinder/upload/files/pegasugoxulafesagudu.pdfIn PDF document text
    • https://veronikavilla.hu/userfiles/file/morigogowuredovise.pdfIn PDF document text
    • http://www.weilandensemble.nl/ckfinder/userfiles/files/6485382902.pdfIn PDF document text
    • http://www.dulichhoaha.com/fckeditor_data/file/29688854191.pdfIn PDF document text
    • https://hurghadalife.net/userfiles/files/94140589121.pdfIn PDF document text
    • https://www.urban-quartz.co.uk/wp-content/plugins/super-forms/uploads/php/files/4a8098197f14fad32e2519431ddda658/497103920.pdfIn PDF document text
    • http://areopag-group.ru/sites/default/files/uploads/babevafilirutubew.pdfIn PDF document text
    • http://revucue.com/ckfinder/userfiles/files/zalidefagigagugi.pdfIn PDF document text
    • http://charugarware.com/DEVELOPMENT/charu_garware/uploaded/userfiles/file/dimenogo.pdfIn PDF document text
    • http://www.aippc.net/kcfinder/upload/files/suvujaxipapatu.pdfIn PDF document text
    • http://saikunghouse.hk/userfiles/tivifasozokovisokajekuto.pdfIn PDF document text
    • http://onlinemidias.com/ckfinder/userfiles/files/41007715734.pdfIn PDF document text
    • http://aias.pnu.ac.th/ckfinder/userfiles/files/33008062804.pdfIn PDF document text
    • https://xtremefitksa.xbodyksa.com/ckfinder/userfiles/files/19665054415.pdfIn PDF document text
    • http://olsztyntransportmedyczny.pl/userfiles/file/38008866891.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_off0003c8ab.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off0003c8ab.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0003c8ab.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3C8AB 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9
font_01_sfnt_off0003dfc6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3DFC6 17292 bytes
SHA-256: 2e35f2ee70358b8bb36b0bd355b247633cfc38400001d9e5214cee2e6d6d46f9
font_02_sfnt_off00040c8e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x40C8E 10924 bytes
SHA-256: e1e4f0b40bfe8c0e7e4569a40830b68ce6713c0bb3b33e0c13d6d8c39e5a12cb