Malicious PDF — malware analysis report

Static analysis result for SHA-256 4dee88e3330d32f5…

MALICIOUS

PDF

419.8 KB Created: 2022-02-22 08:57:06 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-04-29
MD5: a713ae8a6dba6d1bf4b019a87ac10352 SHA-1: 0820e7ed768b9c265684af6852dc363b4ae83258 SHA-256: 4dee88e3330d32f5271fefd1eb919737ab5fb961680638aace386832d54e5e1e
166 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.5334

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://eurodens.pl/files/editor/files/wixikavowobekoj.pdf In PDF document text
    • https://kaptenhoki.org/contents/files/98965392983.pdfIn PDF document text
    • http://mweb.cz/images/file/7374006237.pdfIn PDF document text
    • http://forumcutuca.com/ckfinder/userfiles/files/potizug.pdfIn PDF document text
    • http://forter.vn/hinhanh/file/9833683199.pdfIn PDF document text
    • http://bbmeti.it/userfiles/files/51092570032.pdfIn PDF document text
    • http://www.nandomoraes.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/1619f6032cb465---pizojata.pdfIn PDF document text
    • http://greenearthgardens.org/userfiles/18932304527.pdfIn PDF document text
    • http://duetsepolno.pl/userfiles/file/71037846395.pdfIn PDF document text
    • https://perdemis.com/panel/kcfinder/upload/files/zozudug.pdfIn PDF document text
    • http://thetsaban3watnuea.com/UserFiles/file/lomisexukabevekaludulo.pdfIn PDF document text
    • http://intertribo.sk/files/legopabo.pdfIn PDF document text
    • https://kitapkaplama.com/upload/ckfinder/files/niwubemonimawotarutavinem.pdfIn PDF document text
    • https://houseofwax.eu/kcfinder/upload/files/61962090660.pdfIn PDF document text
    • https://actualite.autopromo.com/fckResources/file/wipuwanew.pdfIn PDF document text
    • https://123kozijnofferte.nl/wp-content/plugins/super-forms/uploads/php/files/e66e6e9ed38442606476fe6358aafea8/xubun.pdfIn PDF document text
    • http://087334211.kad.tw/kads/ckfinder/userfiles/files/79069659769.pdfIn PDF document text
    • http://verkoop-je-wagen.be/wp-content/plugins/formcraft/file-upload/server/content/files/160e92c80bc8c1---tugizaranafavuzopanerodu.pdfIn PDF document text
    • https://beytarimcilik.com/admin/editor_resim/file/68402276712.pdfIn PDF document text
    • https://frigosztufi.ro/ckfinder/userfiles/files/pefawe.pdfIn PDF document text
    • http://chinalabware.net/d/files/tapizizi.pdfIn PDF document text
    • https://tutorsbureau.net/userfiles/file/jozexerawisofovedamilosut.pdfIn PDF document text
    • https://branchennachweis.eu/userfiles/file/wijebixepewoxosujirefa.pdfIn PDF document text
    • http://quetthe.com/upload/files/topegapolitinutadigeroju.pdfIn PDF document text
    • http://koreadramatour.com/FileData/ckfinder/files/20220113_57A1A5C6FD4A2D9B.pdfIn PDF document text
    • https://angkortaxiservice.com/userfiles/file/xigafof.pdfIn PDF document text
    • http://snabsz.ru/ckfinder/userfiles/files/73340894935.pdfIn PDF document text
    • http://eigo-manabo.com/app/webroot/js/kcfinder/upload/files/neribeti.pdfIn PDF document text
    • http://arc-exir.ir/cache/fck_files/file/16909599174.pdfIn PDF document text
    • http://roycraft.ca/userfiles/file/bufuredawadubupalib.pdfIn PDF document text
    • http://armanetti.com/images/8863078588.pdfIn PDF document text
    • http://labsshop.com/d/files/64151257408.pdfIn PDF document text
    • https://fulzugaskozpont.hu/files/zofegetowivetodasigoda.pdfIn PDF document text
    • https://greassi.com/editor_upload/file/mapozuwemipobifa.pdfIn PDF document text
    • https://lovig.co.za/XSRYdR1H?utm_term=play+bookworm+adventures+free+online+noPDF link annotation
    • http://mustang.tom.ru/jsplugins/ckfinder/userfiles/files/24116545368.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_off00061b8f.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off00061b8f.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00061b8f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x61B8F 19356 bytes
SHA-256: e9c4a25366ef52abe872ede682e184673338aae87565dab10d3594cf97ae36c3
font_01_sfnt_off00064e0c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x64E0C 11112 bytes
SHA-256: eb4ba9b86ea68a34d26ddf5e129ed38f3b4e6e51b17ed8f95cf0c14272bd6d71
font_02_sfnt_off00066815.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x66815 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9