Malicious PDF — malware analysis report

Static analysis result for SHA-256 875da3fe3bfc8832…

MALICIOUS

PDF

351.9 KB Created: 2022-03-15 14:43:40 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-05-04
MD5: 20de55175d991afb257743781b8c8eed SHA-1: 2814f0e6eed8b64f7a8517c7c4cba27254c0a262 SHA-256: 875da3fe3bfc88321f2dd64eee0273be51f1422f5e5621edbd142339e72f6561
166 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.6641

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://communicationscharlevoix.com/admin/kcfinder/upload/files/328888374.pdf In PDF document text
    • https://technopacific.cl/jamila/admin/uploads/file/59428337962.pdfIn PDF document text
    • http://thessalonikiflights.com/files/files/tolofedirabe.pdfIn PDF document text
    • http://dwornawodzie.pl/userfiles/file/52640458453.pdfIn PDF document text
    • http://fratellibeninca.com/images/file/89618648311.pdfIn PDF document text
    • https://ekselantechnology.solutions/ckfinder/userfiles/files/sejejidaxunewogonotowik.pdfIn PDF document text
    • https://rowanmkt.com/Uploads/ckfinder/userfiles/files/lofiv.pdfIn PDF document text
    • http://proallprint.com/userfiles/files/77278574994.pdfIn PDF document text
    • http://sromedical.com/file_media/file_image/file/69000005587.pdfIn PDF document text
    • http://strahovka66.ru/userfiles/file/nevow.pdfIn PDF document text
    • http://studioarchoggianiepartners.it/userfiles/files/48494080106.pdfIn PDF document text
    • https://www.brunosistemi.com/wp-content/plugins/formcraft/file-upload/server/content/files/162034f5a3bf79---lezupepamexegiwos.pdfIn PDF document text
    • https://totalyoumovement.com/wp-content/plugins/formcraft/file-upload/server/content/files/16208204ed12c4---35797785060.pdfIn PDF document text
    • https://ag-concept.ru/wp-content/plugins/super-forms/uploads/php/files/d128ae76da5bef1677ff45dd616b2a69/jibekaxefamaw.pdfIn PDF document text
    • http://nijiclothing.com/assets/ckeditor/kcfinder/upload/files/62804874521.pdfIn PDF document text
    • http://asu.com.vn/wp-content/plugins/super-forms/uploads/php/files/hl1vp2s738vi6s485pb1jo7ejj/78229307932.pdfIn PDF document text
    • http://autoskola-weiss.cz/userfiles/75303425057.pdfIn PDF document text
    • https://www.ogsb.org/asset/ckeditor/kcfinder/upload/files/45610822144.pdfIn PDF document text
    • https://rn62ug59c-to8.com/contents/files/73215911716.pdfIn PDF document text
    • https://togeltop.com/contents/files/65930303264.pdfIn PDF document text
    • http://www.zav-mito.si/wp-content/plugins/formcraft/file-upload/server/content/files/1620491beb9b14---3279390455.pdfIn PDF document text
    • http://tksvolga.ru/userfiles/file/44832590275.pdfIn PDF document text
    • http://tznjl.com/userfiles/files/gesuzisusiremusib.pdfIn PDF document text
    • http://apartmany.cucoriedka.sk/data/files/wekebejamavanu.pdfIn PDF document text
    • http://biblebaptist.kr/user_data/kcfinder/files/benosar.pdfIn PDF document text
    • http://notariocprietoa.com/notaria/documentos/files/forozobodexose.pdfIn PDF document text
    • http://sindcomerciarioscs.org.br/adm/kcfinder/upload/files/sifubin.pdfIn PDF document text
    • http://newpacksy.com/admin/kcfinder/upload/files/jawezovevutagivud.pdfIn PDF document text
    • http://vaithun.net/upload/files/seximewefowumutemo.pdfIn PDF document text
    • https://huanghecables.com/d/files/vodafu.pdfIn PDF document text
    • http://citlak.de/admin/UserFiles/file/jirotigigowaremutewepuna.pdfIn PDF document text
    • https://futurefacesmiami.com/uploads/file/6758506952.pdfIn PDF document text
    • http://fruitsad.pl/images/file/38815789335.pdfIn PDF document text
    • https://fecuq.co.za/XSRYdR1H?utm_term=99+ball+blast+mod+apk+1.+16PDF 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_off00050bf0.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off00050bf0.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00050bf0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x50BF0 20072 bytes
SHA-256: 4262fa17ab94e842be0f4dcba7f7edec41d8d296a5c8fb7d409fdf82d0a6de1f
font_01_sfnt_off0005406f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5406F 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9
font_02_sfnt_off0005578f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5578F 10716 bytes
SHA-256: 9b4c7975d7d73a0df65a566c2ddf8260d2a59819a35cfb3dd9e07204d478d2a9