Malicious PDF — malware analysis report

Static analysis result for SHA-256 4e39a70cdf31aeaf…

MALICIOUS

PDF

297.7 KB Created: 2022-02-04 06:11:01 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-19
MD5: 101fbc8aa6f174cdc674f12ca1f6d47e SHA-1: b075db16a4be7baa291d7642d6965d72004d9535 SHA-256: 4e39a70cdf31aeaf461efe385752a3662e10a2e9ae427ff2ac21c0a294e472d9
166 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.7194

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://cafij.co.za/XSRYdR1H?utm_term=topology+without+tears+solutions+pdf PDF link annotation
    • http://metaphorcreators.com/kcfinder/upload/files/legunozidob.pdfIn PDF document text
    • http://rc-modeller.se/images/file///28664830822.pdfIn PDF document text
    • http://champaigncursillo.com/userfiles/file/joxazukesabitala.pdfIn PDF document text
    • https://floridagreatescape.com/media/file/gutiwedo.pdfIn PDF document text
    • http://zajazd-broadway.pl/galeria/file/vixibamesogo.pdfIn PDF document text
    • http://netmutum.com/userfiles/file/46609392525.pdfIn PDF document text
    • http://www.jesuseslaroca.org/wp-content/plugins/formcraft/file-upload/server/content/files/161d47f451bbe4---tomonafirilalog.pdfIn PDF document text
    • https://avenirpourtous.fr/wp-content/plugins/formcraft/file-upload/server/content/files/161d9b1666e681---26660530008.pdfIn PDF document text
    • https://mertlakustika.cz/images/pages/file/kavabutiwemoninutud.pdfIn PDF document text
    • http://cnzhongkui.com/fckeditor/editor/filemanager/connectors/php/uploads/file/16012614984.pdfIn PDF document text
    • http://soflacops.com/clients/83266/File/demukexomeguxejomuvamipa.pdfIn PDF document text
    • http://chizclean.ru/files/fck/file/lexoduzo.pdfIn PDF document text
    • http://otestmanager.org/club/data/userfiles/file/20210921165447.pdfIn PDF document text
    • http://etalentlink.com/uploadfile/file///2021081221262485.pdfIn PDF document text
    • http://18554080.com/userfiles/file/togazesixevifevimezobawer.pdfIn PDF document text
    • https://firsatoyun.com/calisma2/files/uploads/39012470506.pdfIn PDF document text
    • https://sieuthimaytinhcu.vn/upload/files/8593392972.pdfIn PDF document text
    • http://w.pubenefit.pl/system/admin/ckeditor/kcfinder/upload/files/OC%20dobrowolne%20%20deklaracja%20dla%20Piel%C4%99gniarki.pdfIn PDF document text
    • http://lnianemarzenie.pl/userfiles/file/60550026533.pdfIn PDF document text
    • https://bentonhomebuilders.com/kcfinder/zofuwakamarag.pdfIn PDF document text
    • http://anhuifan.com/upload_fck/file/2021-7-14/20210714092848964486.pdfIn PDF document text
    • https://aimic.com/userfiles/file/nikafe.pdfIn PDF document text
    • https://patriot.ch/wp-content/plugins/super-forms/uploads/php/files/r4k08brop2m6oudhf4bk4qeuqb/wagivaxolazamuval.pdfIn PDF document text
    • http://www.satunatc.ac.th/ckfinder/userfiles/files/mepixagotubip.pdfIn PDF document text
    • https://ohligschlaeger-berger.de/wp-content/plugins/formcraft/file-upload/server/content/files/1613b2e6c85384---fasewimebejozuruxik.pdfIn PDF document text
    • https://dondepodemosir.com/userfiles/file/10822221288.pdfIn PDF document text
    • http://www.danvillern.com/wp-content/plugins/super-forms/uploads/php/files/ca85de990916cc2bdbd65e5158f429f5/mexenujuzojiparavuzu.pdfIn PDF document text
    • https://baldai.manovonia.lt/images/files/zobijogonata.pdfIn PDF document text
    • http://www.cerradurasytornillos.com/gdc/kcfinder/upload/files/5975856372.pdfIn PDF document text
    • http://anhuicrew.com/upload_fck/file/2021-10-11/20211011093425637352.pdfIn PDF document text
    • https://krassimirtaskov.com/userfiles/files/90708570217.pdfIn PDF document text
    • http://www.vishalsahni.com/public/ckfinder/userfiles/files/31202706028.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 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_off00043a05.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x43A05 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9
font_01_sfnt_off00045125.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x45125 11040 bytes
SHA-256: 729bb671e3e5bb58445bc73fb0d3138535f3adc7f85d50e1286ad9a8f8bfe188
font_02_sfnt_off00046aa7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x46AA7 16740 bytes
SHA-256: 381ff5179f751f1e8aeb4fe849abc8d001cc58a35f146b9800a0b579b992df6c