Malicious PDF — malware analysis report

Static analysis result for SHA-256 ca6594e3aba1b6cf…

MALICIOUS

PDF

376.1 KB Created: 2022-01-24 18:56:24 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-05-07
MD5: 422d6e6207a72cd79514ce2ac57ab251 SHA-1: 0673eb00dae6fc0f65f0fdd3f7e86761f0569fb6 SHA-256: ca6594e3aba1b6cf294b17ed799f05f28e6948eb7886b8092580c8da09a54726
166 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.6197

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://bearbuy888.coco1490.com/upload/file_folder/file/dixubuderob.pdf In PDF document text
    • https://bikeid.net/ckfinder/userfiles/files/76384234803.pdfIn PDF document text
    • http://codienlanhminhquang.com/upload/files/kotavuzirez.pdfIn PDF document text
    • http://mikomisushiwc.com/uploads/files/wibaxugitojufotovib.pdfIn PDF document text
    • http://moto-bike.pl/userfiles/file/newasevikibesafe.pdfIn PDF document text
    • http://contua.org/userfiles/file/dubar.pdfIn PDF document text
    • http://xn--aknmedcal-wpbe.com/uploads/file/38565788860.pdfIn PDF document text
    • http://objetivovender.com/wp-content/plugins/formcraft/file-upload/server/content/files/161b4188f5731f---jemonixemu.pdfIn PDF document text
    • http://suachuaspa.com/upload/images-content/files/37099962880.pdfIn PDF document text
    • https://successstudio.net/userfiles/file/wuxamojipogesojorovudufex.pdfIn PDF document text
    • http://artattack-concerts.de/files/file/14201065710.pdfIn PDF document text
    • https://www.willmarareachamber.com/ckfinder/userfiles/files/60278587802.pdfIn PDF document text
    • https://laneopx.com/wp-content/plugins/formcraft/file-upload/server/content/files/161d5a29adf372---36851657575.pdfIn PDF document text
    • http://onlinepravenconsultant.com/uploads/wysiwyg/files/31159591591.pdfIn PDF document text
    • http://starysklep.itmega.pl/photo/file/perana.pdfIn PDF document text
    • https://vientangluc.com/upload/files/danigup.pdfIn PDF document text
    • http://roletyhanarol.pl/files/file/latolozivadixedofevaxa.pdfIn PDF document text
    • http://kanalizace.instalace-charvat.cz/userfiles/file/20294063113.pdfIn PDF document text
    • http://ks-klinika.ru/ckfinder/userfiles/files/guxomawamefulefev.pdfIn PDF document text
    • http://www.hollyskauaicondo.com/wp-content/plugins/formcraft/file-upload/server/content/files/16172f9eac7889---65383666689.pdfIn PDF document text
    • https://g-mtcc.com/motakamel/Ups/files/54597848798.pdfIn PDF document text
    • http://anke.de/data/anke.de/uploadfiles/file/26512244660.pdfIn PDF document text
    • http://flooroverstock.com/admin/userfiles/file/bupidazef.pdfIn PDF document text
    • http://inewbus.com/wp-content/plugins/super-forms/uploads/php/files/mq524r41gakp3tufpdnfls01r0/zabamafajenekeledeluzuwu.pdfIn PDF document text
    • http://lechioutdoor.com/userfiles/file/lepaxuvabarimexofibaz.pdfIn PDF document text
    • https://www.hadlowsecurityshutters.com/wp-content/plugins/super-forms/uploads/php/files/2016e2d7e262998ddf33d9fca6db9956/86059085604.pdfIn PDF document text
    • https://husvagnsexpo.se/wp-content/plugins/formcraft/file-upload/server/content/files/16168fbff1a92e---94497852165.pdfIn PDF document text
    • https://www.revistadefiesta.com/wp-content/plugins/formcraft/file-upload/server/content/files/1615daa1405977---zufopusesizagonivulaxavun.pdfIn PDF document text
    • http://saludocupacionalpso.com/home/wp-content/plugins/formcraft/file-upload/server/content/files/161b6551ae3741---73594305733.pdfIn PDF document text
    • http://gernano.eu/gfx/userfiles/files/2357884434.pdfIn PDF document text
    • http://feedproxy.google.com/~r/Xvkpad/~3/UsNeCLCzgYg/uplcv?utm_term=streaming+calcio+gratis+androidPDF 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 extracted file (font_00_sfnt_off000575e8.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off000575e8.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000575e8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x575E8 10788 bytes
SHA-256: b74507b123a1088e863c723310e9e5e0a5ee9af544a11c40971abe21c55757ce
font_01_sfnt_off00058e80.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x58E80 17088 bytes
SHA-256: ae2c132507f4ea4e6a52df663899066d3e7c89e5a7f849061b9e5c1ec3faa27d
font_02_sfnt_off0005ba0d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5BA0D 16416 bytes
SHA-256: cfa2c3fbce80cc5607e01af033b793d17c57c214fb1d96e845eedea48cccd336