Malicious PDF — malware analysis report

Static analysis result for SHA-256 1dc2833b4fd261cb…

MALICIOUS

PDF

531.4 KB Created: 2022-01-03 06:11:10 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-05-30
MD5: d2e8d8ba52e92b68324588f72cda104c SHA-1: 4626bcced0ea374891cc5ca99dba7e51a9a0d08e SHA-256: 1dc2833b4fd261cb728050843c864bdc32dcab87c5ce7d1c890fd8fbf9f5b2b8
144 Risk Score

Machine Learning

  • Nyx PDF Classifier suspicious score 0.4649

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
  • 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.
  • Urgency / deadline lure low SE_URGENCY_LURE
    Document contains urgency or deadline language ('account will be terminated', 'action required within 24 hours', etc.) — useful context, but low-signal without other findings
  • 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://sv-orhidea.ru/upload/files/potemuzofefamuja.pdf In PDF document text
    • http://pbwi.com.pl/admin/kcfinder/upload/files/fuzepogoxazosif.pdfIn PDF document text
    • https://nirkongrp.com/ckfinder/userfiles/files/xinavadagufosogibas.pdfIn PDF document text
    • http://doktor-okonski.pl/uploadimg/file/lasazitazetagufafejumarop.pdfIn PDF document text
    • http://gocash2u.xyz/userfiles/file/nuvixiwebojagusavuniluzom.pdfIn PDF document text
    • http://bresnahan.sfiab.com/data/userfiles/file/tazizigozilam.pdfIn PDF document text
    • http://solamsys.com/userData/board/file/78391386625.pdfIn PDF document text
    • http://studiolorenzoni.eu/userfiles/files/47011198714.pdfIn PDF document text
    • https://www.olympusnorge.no/wp-content/plugins/super-forms/uploads/php/files/gopbkk1l4tk3g62oiu5hl0mbrk/xibebosejirezefuxowabex.pdfIn PDF document text
    • http://archgeo-leszno.pl/uploads/userfiles/files/87238877467.pdfIn PDF document text
    • https://perfecthospitals.org/FCKeditor/file/xereraxotozupakotejagi.pdfIn PDF document text
    • http://sintellect.ru/Repository/file/vekijo.pdfIn PDF document text
    • https://52fantasies.com/home/holly/public_html/ckfinder/userfiles/files/9290007471.pdfIn PDF document text
    • http://www.aippc.net/kcfinder/upload/files/69649436850.pdfIn PDF document text
    • https://motionslam.com/wp-content/plugins/super-forms/uploads/php/files/08fc7bbef7d27e747b2479e02eb23d24/gaxiwosoboponiro.pdfIn PDF document text
    • http://ekorob.pl/userfiles/file/vajokawerevot.pdfIn PDF document text
    • https://geneticapanama.com/userfiles/file/72708740913.pdfIn PDF document text
    • https://stefandes.com/wp-content/plugins/formcraft/file-upload/server/content/files/1615d1d2e6b7c1---gujeribijipemozimew.pdfIn PDF document text
    • http://sevinctekstil.com/resimler/files/danadaze.pdfIn PDF document text
    • https://www.techsrollout.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613be05120358---vogojasuw.pdfIn PDF document text
    • http://www.forteks.com.br/admin/ckeditor/ckfinder/userfiles/Images/lakaxiluwuluj.pdfIn PDF document text
    • https://rotitelor.com/contents/files/67006757818.pdfIn PDF document text
    • https://dermo.com/wp-content/plugins/formcraft/file-upload/server/content/files/161bddcadcdbef---66577482545.pdfIn PDF document text
    • https://ideylia.fr/uploads/file/savaruzomuj.pdfIn PDF document text
    • http://feedproxy.google.com/~r/MbOu/~3/23D8k0Ec_6w/uplcv?utm_term=pirates+of+silicon+valley+subtitlesPDF 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_off0007d41a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7D41A 22324 bytes
SHA-256: 1cb6957012f914c5b6351ff4239a4d9142cb94cffb91dbb645366ee8eca00349
font_01_sfnt_off00080e62.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x80E62 10752 bytes
SHA-256: b723638de7b6f83e652727111c8f8a4929d6ef69ec9defdc575c54bc6d7f106d
font_02_sfnt_off00082753.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x82753 16416 bytes
SHA-256: cfa2c3fbce80cc5607e01af033b793d17c57c214fb1d96e845eedea48cccd336