Malicious PDF — malware analysis report

Static analysis result for SHA-256 26fe655ff43a2e96…

MALICIOUS

PDF

342.3 KB Created: 2021-12-31 08:49:20 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-07-18
MD5: ae2cdcce6fadb128ca514a03706234e4 SHA-1: 6e0cb07212e54bcaec0332647aaf3d3332da9e88 SHA-256: 26fe655ff43a2e96b91dc6998dd372c7802960ce0590da15bcffb91789290c86
166 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.6933

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://vasa-project.org/fckupload/file/16646958623.pdf In PDF document text
    • http://bakineshr.az/ckfinder/userfiles/files/34747040642.pdfIn PDF document text
    • https://tybistanbul.org/resimler/files/rovakumof.pdfIn PDF document text
    • http://www.sbawerribee.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/16190effce866e---84418246219.pdfIn PDF document text
    • http://uzks.hr/upload/datoteke/90305534204.pdfIn PDF document text
    • http://www.iycadana.org/wp-content/plugins/super-forms/uploads/php/files/k8kjk39g107gj1bnq1o86t1ho6/jukowubasewu.pdfIn PDF document text
    • http://fuchs-orthopaedie.de/UserFiles/file/23294447771.pdfIn PDF document text
    • https://polytex.de/sites/default/files/33574738417.pdfIn PDF document text
    • http://queuemanagementsystems.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613bac33001dd---67072747767.pdfIn PDF document text
    • http://pebyte.com/wp-content/plugins/super-forms/uploads/php/files/ol11n6rhomiul2qkei8vh9soi8/wevugurixepifebasigezemef.pdfIn PDF document text
    • http://bunny888.com/ckfinder/userfiles/files/kewurekufurivexuki.pdfIn PDF document text
    • http://www.hkimm.hk/_bin/ckfinder/userfiles/files/9558747016.pdfIn PDF document text
    • http://panel2conso.com/userfiles/file/37240201809.pdfIn PDF document text
    • http://infrabud.eu/fckpliki/file/66596372217.pdfIn PDF document text
    • https://spherule.org/wp-content/plugins/super-forms/uploads/php/files/9r0a3eiu29b1678j13495o9322/20828152657.pdfIn PDF document text
    • https://www.opdrrustukalac.com/wp-content/plugins/formcraft/file-upload/server/content/files/1619aa9658cebb---75196340972.pdfIn PDF document text
    • http://ngnjl.com/userfiles/files/85602556937.pdfIn PDF document text
    • https://bor-diing.com/upload/files/fidabunula.pdfIn PDF document text
    • http://avon-bratislava.com/files/files/63377155085.pdfIn PDF document text
    • http://speaklifeiamgreatness.com/files/files/99473256824.pdfIn PDF document text
    • https://profm.hu/files/file/jemevomukobu.pdfIn PDF document text
    • https://www.mmgrowersg.com/ckfinder/userfiles/files/lurixamibu.pdfIn PDF document text
    • http://logiccpacma.com/ckfinder/userfiles/files/jigopatirasuwiwiwa.pdfIn PDF document text
    • https://ailani.org/wp-content/plugins/super-forms/uploads/php/files/c87754400c0b2dc942db92da9aba0223/bupebiz.pdfIn PDF document text
    • https://lhorizon.ca/uploadHorizon/file/46847675355.pdfIn PDF document text
    • http://feedproxy.google.com/~r/MbOu/~3/TxADE9PCSUw/uplcv?utm_term=bully+lite+offline+apkPDF 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_off0004ebce.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off0004ebce.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0004ebce.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4EBCE 10440 bytes
SHA-256: ee39957455ab6eb9678bbc3a22b0e3d241df476e48db19ef749113ea60cf5365
font_01_sfnt_off000503b0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x503B0 16416 bytes
SHA-256: cfa2c3fbce80cc5607e01af033b793d17c57c214fb1d96e845eedea48cccd336
font_02_sfnt_off00051a4f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x51A4F 18232 bytes
SHA-256: 3d816ba6e92ada99b85ae6eddb60ebf1f01ff861ecd3f5f43caeff24f91495a3