Malicious PDF — malware analysis report

Static analysis result for SHA-256 fab8521a256a90c5…

MALICIOUS

PDF

390.4 KB Created: 2022-02-05 19:47:15 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-07-02
MD5: 3642cd7ba059495494bd73fccdab3a0b SHA-1: 08873df8f8fae3e03da58d0b7438f6051761bc85 SHA-256: fab8521a256a90c51f1e83b7dc344f27b627c99789c5a46bb47b4e609610ecbd
166 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.6841

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://colod.co.za/XSRYdR1H?utm_term=apa+style+6th+edition+pdf+deutsch PDF link annotation
    • http://chernogolovka.inhome360.ru/admin/ckfinder/userfiles/files/94753624291.pdfIn PDF document text
    • https://fertilizerproductionprocess.com/d/files/tokof.pdfIn PDF document text
    • https://rozetki.su/kcfinder/upload/files/zosivuzuzonavuwik.pdfIn PDF document text
    • http://vanguardhungary.hu/userfiles/file/5715315035.pdfIn PDF document text
    • https://lee-trading.tw/archive/upload/files/4426195000.pdfIn PDF document text
    • https://www.kiteschule-eckernfoerde.de/wp-content/plugins/formcraft/file-upload/server/content/files/16191c9bdbc547---xukusogigavepo.pdfIn PDF document text
    • https://www.retailexpert.sk/gfx/administration/js/ckeditor/kcfinder/upload/files/vemijemexutelaforuwik.pdfIn PDF document text
    • http://sushikyototogo.com/uploads/files/85465230812.pdfIn PDF document text
    • http://mrcookie.tw/upload/editor/file/210121536726.pdfIn PDF document text
    • http://footstepfloor.com/upfiles/files/jororanilugajasabevab.pdfIn PDF document text
    • http://fslawoffice.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/78976177374.pdfIn PDF document text
    • http://vhktn.at/images/content/files/rukamotut.pdfIn PDF document text
    • http://mywymc.com/userfiles/file/femitaritonup.pdfIn PDF document text
    • https://alenakovalchuk.ru/wp-content/plugins/super-forms/uploads/php/files/c26feb09bc6ae4dca36e3ffc1aaf5387/domukeji.pdfIn PDF document text
    • http://www.alborada.es/ckfinder/userfiles/files/27593632761.pdfIn PDF document text
    • https://kvartira-zalog.ru/wp-content/plugins/super-forms/uploads/php/files/f2e90696fed762e35527259fbd296b90/valubezefumu.pdfIn PDF document text
    • http://gcoekmr.org/cukashmir/User_Files/imagefile/kuraniwijaxukosafuzuvuzo.pdfIn PDF document text
    • http://hefei.chinatupai.com/web/js/ckfinder/userfiles/files/10132579815.pdfIn PDF document text
    • https://remont-bez-zabot.ru/files/file/49967200899.pdfIn PDF document text
    • https://www.frontiermea.com/sites/all/libraries/ckfinder/userfiles/files/65052838547.pdfIn PDF document text
    • http://diversecityuk.com/userfiles/file/jofezidufuserogetemaxokid.pdfIn PDF document text
    • http://architettoannalisatinelli.it/userfiles/files/20099677035.pdfIn PDF document text
    • http://peneleos.pl/userfiles/file/lebexokafivudisobi.pdfIn PDF document text
    • http://ohdiabo.net/images/ckeditor/files/30116192309.pdfIn PDF document text
    • https://heart-calligraphy.com/uploads/files/202201031855132994.pdfIn PDF document text
    • http://image.dlib.vn/libedu/news/bachviet/20211207/file/rotojodanowufojelomu.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_off0005a6ad.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off0005a6ad.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0005a6ad.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5A6AD 19600 bytes
SHA-256: 977cb677e600323804f877d28595880eff5ab167fa6af1438f222f468da0bcae
font_01_sfnt_off0005d947.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5D947 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9
font_02_sfnt_off0005f067.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5F067 10980 bytes
SHA-256: cd29686a56722338da42cdb4e5155e548275e66df3a846769e31336448a53be0