Malicious PDF — malware analysis report

Static analysis result for SHA-256 3bc6ec93d8832a11…

MALICIOUS

PDF

359.3 KB Created: 2022-02-01 19:56:40 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-05-20
MD5: ee15d21877908d4b3d1744bdba63fa8d SHA-1: 6e6bcd4a28b226d8661403c1837ab0c8bbc3bc14 SHA-256: 3bc6ec93d8832a11087ca29774968bd15f1c4467b615cad1cc46c33535c22888
166 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.7480

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://www.theflightfest.com/wp-content/plugins/formcraft/file-upload/server/content/files/1617e7464bdb7e---tekupo.pdf In PDF document text
    • https://gresathouse.com/wp-content/plugins/super-forms/uploads/php/files/e6ea7b6e8c74530152e4f691609cee81/78467284329.pdfIn PDF document text
    • https://ietc-oman.com/userfiles/files/54095938917.pdfIn PDF document text
    • https://www.beewellrx.com/wp-content/plugins/super-forms/uploads/php/files/volac9citdkcq17cnou4vl14sblv351i/wevubasogid.pdfIn PDF document text
    • https://konyaalotaksi.com/userfiles/file/10567111159.pdfIn PDF document text
    • http://xn--80aer5aza.xn--c1acndkmcarx.xn--p1ai/ckfinder/userfiles/files/binif.pdfIn PDF document text
    • https://cashcruis.ru/wp-content/plugins/super-forms/uploads/php/files/0886c7bc013c987de0819ae478e8d9e3/lumebigekuwuzas.pdfIn PDF document text
    • http://aurangabadptti.com/ckeditor/ckfinder/userfiles/files/84871959844.pdfIn PDF document text
    • http://www.jindatunnel.com/up_files/file/goverolobeba.pdfIn PDF document text
    • https://rzfmuhasebe.com/userfiles/file/70704009659.pdfIn PDF document text
    • http://gdlejia.com/uploadfile/files/20211028_075953.pdfIn PDF document text
    • http://rayer.cn/d/files/27052014758.pdfIn PDF document text
    • http://motolargo.pl/userfiles/file/fefuwogeviwetofu.pdfIn PDF document text
    • http://kaoli88.com/upload_fck/file/2021-11-12/20211112122750671753.pdfIn PDF document text
    • http://xn--49s538bo8ux8c.net/userfiles/file/9203995504.pdfIn PDF document text
    • https://kolbandibileklik.com/resimler/files/61605720720.pdfIn PDF document text
    • https://saunadlaciebie.pl/userfiles/file/98571787936.pdfIn PDF document text
    • http://mothertheresapublicschool.com/userfiles/file/mavafewozoxokagotu.pdfIn PDF document text
    • http://balie.overeembv-profielen.nl/upload/files/tedezudorerojaxuzifurova.pdfIn PDF document text
    • http://www.globalconference.info/kcfinder/upload/files/vujejizawuzusuluzoxadila.pdfIn PDF document text
    • http://triple-a.co.th/ckfinder/userfiles/files/gopazuwo.pdfIn PDF document text
    • https://so-photo.hu/images/fck/files/vavovirozim.pdfIn PDF document text
    • http://studio-rivetti.it/userfiles/files/laxizedekapapagowatiz.pdfIn PDF document text
    • http://langeline.com/ckeditor/upload/files/83650718574.pdfIn PDF document text
    • http://recepti.plovdivweek.com/js/ckfinder/userfiles/files/36129793273.pdfIn PDF document text
    • https://imperialbroker.it/userfiles/file/vafaperijura.pdfIn PDF document text
    • http://moveisgarciadigital.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/1613f81bf4fb90---87003586089.pdfIn PDF document text
    • http://lacasedescaraibes.fr/file/33344716707.pdfIn PDF document text
    • http://kxqcgs.net/filespath/files/20210923204528.pdfIn PDF document text
    • https://deltarents.com/upload/ckfinder/files/18665505449.pdfIn PDF document text
    • http://sh-ruiyangcpa.com/userfiles/file/2021-10///20211027652559525.pdfIn PDF document text
    • http://oralrem.kz/ckfinder/userfiles/files/mapivubotifotefivojaxese.pdfIn PDF document text
    • https://fecuq.co.za/XSRYdR1H?utm_term=kenny+g+tango+sheet+musicPDF link annotation
    • http://perfecturology.cafe24.com/upload/editor/imagefile/lujidekubi.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_off00052f4e.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off00052f4e.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00052f4e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x52F4E 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9
font_01_sfnt_off0005466e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5466E 10736 bytes
SHA-256: 4ec50cb033f1fa85d8686a5684a76ea2321703fb0fb1d16ae791ef13664e3b4a
font_02_sfnt_off00055f01.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x55F01 17320 bytes
SHA-256: d352a0c55f34db6297dbb6d5ce375fd5ed2cc7d34fda1011facf35e5e6e640a0