Malicious PDF — malware analysis report

Static analysis result for SHA-256 44572a97eb3e5e7f…

MALICIOUS

PDF

198.6 KB Created: 2021-12-03 17:58:04 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-11
MD5: a93e87825dcda359e9b872d6b276b23e SHA-1: 95c9f32afc60947ea38f6ebaab62cfd23f34a683 SHA-256: 44572a97eb3e5e7f88acf6212a4f492e670eafba89c07ec719e5c4bf4dd6f66c
166 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.7643

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://reliancefla.com/admin/images/file/zawiku.pdf In PDF document text
    • https://alarouba.com/ckfinder/userfiles/files/sozufivogeju.pdfIn PDF document text
    • https://atx-stroy.ru/wp-content/plugins/super-forms/uploads/php/files/2d5b18f5b3d3b161db508fa3cb98c455/bupakalafozalidemamem.pdfIn PDF document text
    • https://mamap.in/ci/userfiles/files/75347766105.pdfIn PDF document text
    • http://mwcapital.net/ckfinder/userfiles/files/vaxij.pdfIn PDF document text
    • http://claudiodauelsberg.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/1617e4960a0768---71926010389.pdfIn PDF document text
    • http://proreferee.ru/uploads/ckfinder/files/83736763104.pdfIn PDF document text
    • http://hmed.vn/upload/files/6559866362.pdfIn PDF document text
    • http://www.motocams.cz/ckfinder/userfiles/files/mibamonawug.pdfIn PDF document text
    • https://euromariage.ro/upload/file/monerilexe.pdfIn PDF document text
    • https://dansobentre.net/uploads/file/76690840284.pdfIn PDF document text
    • http://www.guaitoli.eng.br/wp-content/plugins/formcraft/file-upload/server/content/files/16142bfb9bf761---53166717021.pdfIn PDF document text
    • https://cobaltinc.org/userfiles/file/tiwufagunorisenafosodopif.pdfIn PDF document text
    • http://arunimaflavours.com/userfiles/file/savoxonifekana.pdfIn PDF document text
    • http://fini.hu/userfiles/file/17578252917.pdfIn PDF document text
    • http://dichvuhieuchuan.com/upload/files/88792470215.pdfIn PDF document text
    • https://brusroom.com/wp-content/plugins/super-forms/uploads/php/files/bb0f531d03dd9645fd602f3a9658b70f/geduj.pdfIn PDF document text
    • http://hotelbellevuepalermo.com/userfiles/files/xorejafazivurafinumituwow.pdfIn PDF document text
    • http://www.telsercom.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613ff9a26741f---69154928014.pdfIn PDF document text
    • http://zaintik.org/files/galeria/files/feselinolafarakaxefiru.pdfIn PDF document text
    • https://whitelightdesign.com/wp-content/plugins/super-forms/uploads/php/files/d2f71c4c06fed6a7324e46e8ac233b5b/436096584.pdfIn PDF document text
    • http://seosanhrd.com/userfiles/file/38046891559.pdfIn PDF document text
    • http://rancholasmonturaspremios.com/campannas/file/51019221825.pdfIn PDF document text
    • https://feedproxy.google.com/~r/Gsjc/~3/HTGXzuRVGb4/uplcv?utm_term=los+arquetipos+y+lo+inconsciente+colPDF 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_off0002a63b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2A63B 20792 bytes
SHA-256: e3cc1ac521e9b32b3857341903c18ec12b30f955daeacccb13fde645c1ab8fe2
font_01_sfnt_off0002dbdb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2DBDB 10684 bytes
SHA-256: 5729b7f70505cbd29f372557786b3c9c5ab356f4ebbf34b2bf1ee5c0695a9010
font_02_sfnt_off0002f482.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2F482 16416 bytes
SHA-256: cfa2c3fbce80cc5607e01af033b793d17c57c214fb1d96e845eedea48cccd336