Malicious PDF — malware analysis report

Static analysis result for SHA-256 94159950dbcd3869…

MALICIOUS

PDF

323.0 KB Created: 2022-03-04 14:48:15 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-12
MD5: 0fcfc1d7aac8d43e3692ac7899a9e3fb SHA-1: e73f1c503a96a0b79383c1be4f384c32dc1f5b26 SHA-256: 94159950dbcd3869a26078848c48a3407196472815699d0f4bca9db7e64571be
144 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains embedded JavaScript, which is a common technique for malicious PDFs to execute code. The heuristic 'PDF_SEO_UTM_REDIRECTOR_LINK' indicates that an image lure is used to redirect users to a phishing site. The ClamAV detection further confirms the malicious nature of the file, identifying it as a phishing trojan. The primary IOC is the redirector URL used in the phishing lure.

Machine Learning

  • Nyx PDF Classifier malicious score 0.7477

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.
  • 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://norin.co.za/XSRYdR1H?utm_term=independent+clause+worksheets+free PDF link annotation
    • https://animalplus.hilariousworld.com/nouvelles/files/60239020540.pdfIn PDF document text
    • https://sardavetri.it/userfiles/file/46768277440.pdfIn PDF document text
    • http://brothersconsultingllc.com/kcfinder/upload/files/31943179945.pdfIn PDF document text
    • https://longhoang.vn/upload/files/144068839.pdfIn PDF document text
    • http://3q1p.com/upload/file/220211180336766127a6p4cas9veaa.pdfIn PDF document text
    • https://doellefjelde-mussemarked.dk/images/newsmail/file/34625263226.pdfIn PDF document text
    • https://renteci.com/imagens/file/ropedogikijimibogutep.pdfIn PDF document text
    • http://www.halabicaguitars.com/gfx/administration/js/ckeditor/kcfinder/upload/files/jivigorewizedolorenupek.pdfIn PDF document text
    • https://bsff.com/kcfinder/upload/files/fawidavokitekevekafope.pdfIn PDF document text
    • https://thermaltrailrace.com/imagini_ws/34948134676.pdfIn PDF document text
    • http://robodit.ru/kcfinder/upload/files/jawagub.pdfIn PDF document text
    • https://www.iconcollege.ac.uk/AdminPanel/public/ckeditor/kcfinder/upload/files/68397949571.pdfIn PDF document text
    • http://radio6deenero.com/uploaded/files/78593523446.pdfIn PDF document text
    • https://epiphanych.com/images/file/1442668144.pdfIn PDF document text
    • http://biosite.ru/images/news/file/vatorijipow.pdfIn PDF document text
    • http://hitecds.com/userfiles/file/34096641187.pdfIn PDF document text
    • http://toroisg.com/public/images/files/bijifozizubunovo.pdfIn PDF document text
    • https://dverimilana.ru/media-temp/img/uploads/files/reredokijexozibuxedexin.pdfIn PDF document text
    • http://aftckwt.com/uploads/file/ruxekad.pdfIn PDF document text
    • http://rootbeadmill.com/upload_fck/file/2022-2-28/20220228042625910985.pdfIn PDF document text
    • https://eric-parnes.com/ckfinder/userfiles/files/wewebasisunotod.pdfIn PDF document text
    • https://www.marthatrotts.ca/wp-content/plugins/formcraft/file-upload/server/content/files/1620f8796cb2c5---59436201578.pdfIn PDF document text
    • http://bigbulkbags.ahmadpackages.com/survey/userfiles/files/dofenixivowonavoritegas.pdfIn PDF document text
    • https://nakatarikaszel.pl/app/webroot/userfiles/file/xorufirun.pdfIn PDF document text
    • http://tamezou.com/upload/ckfinder/files/bijukarifowitijidi.pdfIn PDF document text
    • http://spakimthi.com/upload/files/55961319735.pdfIn PDF document text
    • http://orsini-blasioli.it/userfiles/files/tusavilem.pdfIn PDF document text
    • https://www.yulava.es/js/libraries/ckeditor/kcfinder/upload/files/dejojuvobixofajagezuvaxin.pdfIn PDF document text
    • http://luxlustry.ru/img/upload/lawamusidovig.pdfIn PDF document text
    • http://ikmblansko.cz/files/upload/files/54038985406.pdfIn PDF document text
    • https://west-holding.com/userfiles/file/72143505221.pdfIn PDF document text
    • https://toptenstudy.com/upload/files/BodyFile__61FB6F946AC42.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_off00049cfa.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x49CFA 17692 bytes
SHA-256: 2c859b8458621e42972ce072fdee45ace5aff9df6d200354227265f83746f59d
font_01_sfnt_off0004caec.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4CAEC 10852 bytes
SHA-256: c48607fe36ecc436d0ee7821ee3402e2845fa6e7772155c5ca8b91ef4a94e4cc
font_02_sfnt_off0004e406.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4E406 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9

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