Malicious PDF — malware analysis report

Static analysis result for SHA-256 94130b836f807f47…

MALICIOUS

PDF

201.7 KB Created: 2022-01-24 18:26:16 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-12
MD5: 87f379bc94b59d5fb815c316ff62dbc4 SHA-1: f9caeb5fed48c0a268ccbc4dc3650dae2684bcfb SHA-256: 94130b836f807f47abcbb8d325dfe28d781ec01ccec1395e83eadd21f0f806f5
166 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains multiple heuristics indicating it is a phishing lure, including a link farm pointing to compromised WordPress upload storage and an SEO redirector. The ML classifier and ClamAV detection strongly suggest malicious intent. Although no scripts were explicitly extracted, the nature of the heuristics and the embedded URLs point towards a phishing attack pattern, likely involving the download of a second-stage payload.

Machine Learning

  • Nyx PDF Classifier malicious score 0.7937

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 http://knowleangling.co.uk/ckfinder/userfiles/files/71732565261.pdf In PDF document text
    • http://www.egavilanes.com/ckfinder/userfiles/files/mapasatosep.pdfIn PDF document text
    • http://cmtoolsrental.com/user_img/files/tiweninoxadirajelulefu.pdfIn PDF document text
    • http://agriturismolionsfarm.it/userfiles/files/78186869180.pdfIn PDF document text
    • http://terralis.eu/catalogue_dynamique/file/peporirikegonijavijapu.pdfIn PDF document text
    • http://wlpp.net/images/blog/file/80418584704.pdfIn PDF document text
    • https://evrenmentese.com/upload/ckfinder/files/97606935847.pdfIn PDF document text
    • http://adams-gold.ru/archive/image/file/62374379141.pdfIn PDF document text
    • http://professionalcatererspaul.pageindia.com/resume/cms_files/files/72576382122.pdfIn PDF document text
    • https://sk-developers.com/wp-content/plugins/formcraft/file-upload/server/content/files/161c7dab1d0db5---82270660640.pdfIn PDF document text
    • http://kelkenaghshband.com/app/webroot/img/files/74333525136.pdfIn PDF document text
    • http://watchimport.eu/userfiles/file/midesupolifeje.pdfIn PDF document text
    • https://www.toptalentusa.com/wp-content/plugins/formcraft/file-upload/server/content/files/161d5f60b7c11e---79724371105.pdfIn PDF document text
    • https://ciar.vn/uploads/image/files/tufipanuw.pdfIn PDF document text
    • http://bothtree.com/userfiles/file/funidevomitoputalilezo.pdfIn PDF document text
    • http://tai-yang.tw/taiyang/upload/file/lolepatopi.pdfIn PDF document text
    • http://dighakanchaninternational.com/FCKeditor/file/sutumabibilifipo.pdfIn PDF document text
    • http://mbfeed.vn/upload/files/fujibifemunasogatur.pdfIn PDF document text
    • https://2ruoteexpo.it/ckfinder/userfiles/files/loxanekuzepurenizo.pdfIn PDF document text
    • https://laval.gatr.ca/img/etablissements/files/17016098973.pdfIn PDF document text
    • https://wildnaturetravel.com/File/tupividilokijegopika.pdfIn PDF document text
    • https://tuyendung.tlipgroup.com/upload/images/files/bajajilivejemumagizamujag.pdfIn PDF document text
    • http://serviphony.com/tinymce/jscripts/tiny_mce/plugins/phpimage/phpimage/upload/images/file/90887168699.pdfIn PDF document text
    • http://www.hotel-margherita.com/wp-content/plugins/formcraft/file-upload/server/content/files/1617793c3ca09c---9807221480.pdfIn PDF document text
    • https://amgaa.org/temp/files/jumamalurokaxaxudu.pdfIn PDF document text
    • http://abaj.cz/UserFiles/File/48043402317.pdfIn PDF document text
    • https://www.alongsideasia.com/wp-content/plugins/super-forms/uploads/php/files/a1fdac7e31873a61f0b91d70fabd77ce/debipiz.pdfIn PDF document text
    • http://overcomeproblems.com/images/files/murinaviza.pdfIn PDF document text
    • https://lbk-ingatlan.hu/uploads/file/jitesikaguresu.pdfIn PDF document text
    • https://snieznik.pl/userfiles/file/79438319169.pdfIn PDF document text
    • http://clanlogging.com/userfiles/file/35527065680.pdfIn PDF document text
    • https://trexanh.net/upload/files/vewonurusubotaxeronebo.pdfIn PDF document text
    • http://villahetzwartepaard.nl/survey/userfiles/files/52912211744.pdfIn PDF document text
    • https://feedproxy.google.com/~r/Gsjc/~3/7xhmvLXWVJc/uplcv?utm_term=adaalat+episode+50PDF 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_off0002badc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2BADC 17752 bytes
SHA-256: 73a8638574d2b8c9940a19248bde7361e11a95a742f7cd221047209b37f787ef
font_01_sfnt_off0002e988.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2E988 10420 bytes
SHA-256: 4c1bf797b970e880067b99855184dc3cf57586e20c61e3f4dfe3c5e9c907d231
font_02_sfnt_off0003014b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3014B 16416 bytes
SHA-256: cfa2c3fbce80cc5607e01af033b793d17c57c214fb1d96e845eedea48cccd336