Malicious PDF — malware analysis report

Static analysis result for SHA-256 4453f722b03e7205…

MALICIOUS

PDF

145.0 KB Created: 2022-02-05 02:46:29 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-11
MD5: 230e037b20e3b5ebc2b1ca5a507d9e9d SHA-1: e1939670be48edb5f3744fe9a15de1767b6ff9f9 SHA-256: 4453f722b03e72057a158249d6d4bba53c79363b971cbae3082d3f7127dd43ac
164 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9444

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
  • 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.
  • Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM
    Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
  • Embedded JS stream low PDF_JS
    PDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
  • 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://loheb.co.za/XSRYdR1H?utm_term=centrelink+old+age+pension+application+form PDF link annotation
    • https://koltoztetes-szallitas-lomtalanitas.com/ckfinder/userfiles/files/poxivegafomatavadivefew.pdfIn PDF document text
    • https://sikanderajam.com/Robinson/ckfinder/userfiles/files/peruwewizisoputuwe.pdfIn PDF document text
    • http://bigdoughpizza.com/uploads/files/xokes.pdfIn PDF document text
    • https://copab.tn/216mag.svn/uploads/files/zonitazorotezefojulox.pdfIn PDF document text
    • http://blow-w124.com/js/upload/files/86954171290.pdfIn PDF document text
    • http://elitaliaweb.it/upload/file/notepotaz.pdfIn PDF document text
    • http://maremio.ru/admin/ckfinder/userfiles/files/piwutuperejegopuzetipu.pdfIn PDF document text
    • https://eurodens.pl/files/editor/files/taludelukufawujokena.pdfIn PDF document text
    • http://uzmansporzeminkaplama.com/resimler/files/sojeterowiwedipoguwa.pdfIn PDF document text
    • http://whatifitspossible.com/ckfinder/userfiles/files/98212043785.pdfIn PDF document text
    • http://csa.china-led.net/static/editor/ckeditor/ckfinder/upfile/files/meburamojomiwefo.pdfIn PDF document text
    • http://saludocupacionalpso.com/home/wp-content/plugins/formcraft/file-upload/server/content/files/160f33cd870bd1---35572301409.pdfIn PDF document text
    • https://istihdamhaberleri.com/upload/ckfinder/files/dazijosesurobixudalob.pdfIn PDF document text
    • https://alev.az/userfiles/file/49131448467.pdfIn PDF document text
    • http://patrick-jardinage.fr/ckfinder/userfiles/files/41739353848.pdfIn PDF document text
    • http://finadev-groupe.com/userfiles/file/20490293197.pdfIn PDF document text
    • http://makaifruits.com/wp-content/plugins/formcraft/file-upload/server/content/files/160fbc67e15a61---41720541148.pdfIn PDF document text
    • http://espwireless.net/uploads/file/xonokejatujare.pdfIn PDF document text
    • http://mgmkt.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/161caf6a4076ca---maxavubufusurinixi.pdfIn PDF document text
    • http://gattoneva.pl/pages/userfiles/file/46857965783.pdfIn PDF document text
    • http://icon-studios.com/userfiles/file/winilowojigerobejubi.pdfIn PDF document text
    • http://cyc.cz/pictures/clanky/files/migugiv.pdfIn PDF document text
    • https://www.gryf-wet.pl/ckfinder/userfiles/files/6551870905.pdfIn PDF document text
    • http://canlook.ru/userfiles/files/13825719091.pdfIn PDF document text
    • http://atmaircenter.com/lb/userfiles/files/ralizekugeberikerikor.pdfIn PDF document text
    • http://netmutum.com/userfiles/file/wagimi.pdfIn PDF document text
    • https://aletihad-group.com/userfiles/files/girif.pdfIn PDF document text
    • http://herve-coiffure.ci/files/litugosololupeloj.pdfIn PDF document text
    • https://www.capitalroofingct.com/wp-content/plugins/formcraft/file-upload/server/content/files/1610d31d5bbd51---somiduzapezetikug.pdfIn PDF document text
    • https://pima-alarms.rs/slicice/file/52042921598.pdfIn PDF document text
    • https://hhwholesaleclub.com/admin/kcfinder/upload/files/basanixugoxaz.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_off0001da7e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1DA7E 11084 bytes
SHA-256: 0dffae27a6cf9974cf15aead33c6b34afc04be0d79031bf24f301466d7b13d7c
font_01_sfnt_off0001f421.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1F421 16328 bytes
SHA-256: 69c4e2115a6aafada53139dfe7e1f7b73d894e457ad7f516937bfae09bde54f8
font_02_sfnt_off00021e76.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x21E76 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9