Malicious PDF — malware analysis report

Static analysis result for SHA-256 d3e4154e2c208604…

MALICIOUS

PDF

320.2 KB Created: 2022-01-01 11:52:04 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-21
MD5: ff75313f7be4ccbac248d06074b2bea0 SHA-1: 6e2839a68f8af51cfc7315b9d4527704b2e2b6b2 SHA-256: d3e4154e2c208604aaa26021d1014e6fcb84e232d36bcc719f95c0570f5c79a9
166 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.7298

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://tortugafilms.com/adminfiles/file/nudukiko.pdf In PDF document text
    • https://www.sir.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/161713bdb22ac8---dowugizixiz.pdfIn PDF document text
    • https://e-uchebnici.com/img/file/88053244035.pdfIn PDF document text
    • http://bachova-terapia.sk/images/file/21524327166.pdfIn PDF document text
    • https://adoz.cz/ckfinder/userfiles/files/60262014662.pdfIn PDF document text
    • http://goozzl.com/userfiles/files/54491323597.pdfIn PDF document text
    • https://hacunamatata.ru/wp-content/plugins/super-forms/uploads/php/files/2a748f44652f91c5b0b79aade957a640/74629455806.pdfIn PDF document text
    • https://cfi-registration.org/buzzboxgift/img/userfiles/files/lerutotixuwapodimimu.pdfIn PDF document text
    • http://nuuts.mn/uploads/assets/48154682128.pdfIn PDF document text
    • http://a-pro-peau.fr/userfiles/file/38223235583.pdfIn PDF document text
    • https://mosoptagro.ru/wp-content/plugins/super-forms/uploads/php/files/28c40475c989894c148c4a661c44943c/84199189632.pdfIn PDF document text
    • https://www.denisonlandscaping.com/wp-content/plugins/formcraft/file-upload/server/content/files/1617908f9c9de0---popamogu.pdfIn PDF document text
    • https://kalatranslation.co.uk/wp-content/plugins/super-forms/uploads/php/files/pal2i9emroobmqbj2e9g472i46/5238437527.pdfIn PDF document text
    • http://majortaylorride.info/images/uploaded/file/gejosobazarapi.pdfIn PDF document text
    • http://gelateriacool.it/userfiles/files/sagavazexuxipivinavufa.pdfIn PDF document text
    • https://betenenergy.com/sites/default/files/file/ruvoxe.pdfIn PDF document text
    • http://daphongthuyhueminh.com/uploads/image/files/depikerifebo.pdfIn PDF document text
    • https://www.renfrewareahealthvillage.ca/ckfinder/userfiles/files/33853951641.pdfIn PDF document text
    • http://ergakiland.ru/files/files/8238029678.pdfIn PDF document text
    • https://vgk.tw/upfile/files/2021/12/23/32899043674.pdfIn PDF document text
    • https://vipbeachhouse.com/uploads/editor/file/57665045282.pdfIn PDF document text
    • https://inovadmin.pavicer.pt/uploads/files/tufaterodekevopegowonu.pdfIn PDF document text
    • http://mictrogiang.com/userfiles/files/labavowukopirexozizes.pdfIn PDF document text
    • http://aztkgbv.love-mrt.com/upload/files/49683390331.pdfIn PDF document text
    • https://feedproxy.google.com/~r/Gsjc/~3/HTGXzuRVGb4/uplcv?utm_term=alvin+schwartz+scary+stories+3+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 PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00048e3f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x48E3F 16416 bytes
SHA-256: cfa2c3fbce80cc5607e01af033b793d17c57c214fb1d96e845eedea48cccd336
font_01_sfnt_off0004a4de.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4A4DE 19092 bytes
SHA-256: 334007e807c3b6e197654f9c8523a55550aaa28a46953ff93591ca968fbe2f4e
font_02_sfnt_off0004d74f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4D74F 11196 bytes
SHA-256: 69bb7b040e23712ee269887f5557ed7df71c3431a5c0d409ace4abd2e1686788