Malicious PDF — malware analysis report

Static analysis result for SHA-256 552ec3231b59c780…

MALICIOUS

PDF

303.4 KB Created: 2022-03-09 07:14:16 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-05-19
MD5: 1d215bd5107589f3c3dad738d3d3f0a8 SHA-1: 8154b3c96aaa2dca06c81d9b60cffb7d26c9010c SHA-256: 552ec3231b59c780886a17bc63da2e64da5726f540e6be23a09e4fc07f934cde
166 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.6352

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 https://yoyep.co.za/XSRYdR1H?utm_term=dunelm+egyptian+cotton+flat+sheets PDF link annotation
    • https://kop-trans.pl/uploads/userfiles/files/49282130683.pdfIn PDF document text
    • https://sklepbonus.pl/userfiles/file/wurarojup.pdfIn PDF document text
    • http://program-pro.ru/userfiles/files/94160544307.pdfIn PDF document text
    • https://akemi.ro/hirek/file/riloz.pdfIn PDF document text
    • http://silverk.ru/img/lib/file/ruvuzon.pdfIn PDF document text
    • https://neoneophytou.com/ckfinder/userfiles/files/zupomake.pdfIn PDF document text
    • http://limpiasol.com/wp-content/plugins/formcraft/file-upload/server/content/files/161fc31b61f137---14540453692.pdfIn PDF document text
    • https://maths-pdf.fr/ckfinder/userfiles/files/60746060073.pdfIn PDF document text
    • https://okeefesreef.com/ckfinder/userfiles/files/tevulejijuruf.pdfIn PDF document text
    • http://ergo-logo-bamberg.de/userfiles/file/53595930691.pdfIn PDF document text
    • https://www.myjamaicais.com/wp-content/plugins/super-forms/uploads/php/files/5869622d07dced49e8d885e65f29bc0d/fexupabesegobufutureboka.pdfIn PDF document text
    • http://friend5190.xyz/js/ckfinder/userfiles/files/87874436897.pdfIn PDF document text
    • http://alde-pace.org/ckfinder/userfiles/files/kamogubobunid.pdfIn PDF document text
    • http://mfcpavpos.ru/file/76931813611.pdfIn PDF document text
    • https://ric-sb.si/uploads/files/tasotogadubisuj.pdfIn PDF document text
    • https://eguiders.com/uploads/83190120953.pdfIn PDF document text
    • https://guidetudiant.elite-media.fr/media/77671871016.pdfIn PDF document text
    • http://xavitec.com/cliente/conteudos/files/22769172896.pdfIn PDF document text
    • https://stauber.lt/images/files/gopofugoxoxatalevukutube.pdfIn PDF document text
    • http://saam.vn/images/content/file/bojejinekelefimavumosedu.pdfIn PDF document text
    • http://paten.kuduskab.go.id/packages/upload/kcfinder/upload/files/waxinosasozotizuzer.pdfIn PDF document text
    • http://tomrerjm.server2.dk/userfiles/file/mepekafa.pdfIn PDF document text
    • https://realwebguys.com/wp-content/plugins/formcraft/file-upload/server/content/files/1620708435db6a---44148378497.pdfIn PDF document text
    • http://nelly-design.ru/upload/files/kebojevetaxepazodu.pdfIn PDF document text
    • http://srmtteaparty.com/uploads/files/202202191654258648.pdfIn PDF document text
    • https://ytdrive.com/CKEdit/upload/files/39367404803.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 extracted file (font_00_sfnt_off000439d4.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off000439d4.bin)

Extracted artifacts 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000439d4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x439D4 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9
font_01_sfnt_off000450ee.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x450EE 16220 bytes
SHA-256: 207eb3b51995adbdef2a766e0364e2c2ee182a7f0f0647c12a4a3807efc046f6
font_02_sfnt_off000466ce.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x466CE 17724 bytes
SHA-256: 33952da237f76b74d74cf2db556e067d1f2f5c4994f9febb49ad12ed51a6748e
font_03_sfnt_off000494de.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x494DE 11040 bytes
SHA-256: 9a7c00e08daff159a7711ee603508f90fafa6397a11290e8b9b50ac73231fd75