Malicious PDF — malware analysis report

Static analysis result for SHA-256 0d3f11661fd16685…

MALICIOUS

PDF

620.8 KB Created: 2021-12-18 05:34:53 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-14
MD5: 62852c98e430089eb7273c24a2c31b20 SHA-1: 2c6db499e7e7f4ad060c5efa0f1b61bae125f1ac SHA-256: 0d3f11661fd16685ac3443ec7f3534efa85aee2cc874744424f78d30d53dbd56
136 Risk Score

Machine Learning

  • Nyx PDF Classifier suspicious score 0.3233

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.fsnn.se/wp-content/plugins/formcraft/file-upload/server/content/files/16179adf6588a5---monopakuvelaniked.pdf In PDF document text
    • https://paulsdumbiryani.com/userfiles/file/67422667656.pdfIn PDF document text
    • http://dok-vo.ru/userfiles/file/difaxex.pdfIn PDF document text
    • https://gedayapi.com/userfiles/file/susowimipufifufesajepojun.pdfIn PDF document text
    • https://sellos-mecanicos.com/wp-content/plugins/super-forms/uploads/php/files/9fc00858a112f6f484f3267e574a4d7e/kubemasevomixopufekixabel.pdfIn PDF document text
    • https://datxeninhbinh.com/data/dulieu/files/89307346350.pdfIn PDF document text
    • http://kazuma.ru/ckfinder/userfiles/files/11607726090.pdfIn PDF document text
    • http://epodhajska.eu/UserFiles/File/22096722879.pdfIn PDF document text
    • http://pnlestari.com/visitbali/image/files/60954505656.pdfIn PDF document text
    • http://www.startservis.sk/novy/ckfinder/userfiles/files/14382212927.pdfIn PDF document text
    • http://telekommarketing.com/firme_data/files/nagibitafiwopafabiwones.pdfIn PDF document text
    • https://netcsemege.elelmiszer-hazhozszallitas.hu/ckfinder/userfiles/files/nimamijetinozopubopadete.pdfIn PDF document text
    • http://gzxmbx.com/uploadfile/file/2021092713570173499.pdfIn PDF document text
    • http://el-master.ru/userfiles/file/50718775908.pdfIn PDF document text
    • https://juraganmonyet.com/contents/files/60703118508.pdfIn PDF document text
    • http://futsalcb.cz/picture/vtextu/file/99288802367.pdfIn PDF document text
    • https://g4m3s-4p1-12s1.com/contents/files/55373331359.pdfIn PDF document text
    • http://powercleanperu.com/cms_powerclean_2015/sgi_userfiles/userfiles/files/fumapob.pdfIn PDF document text
    • http://foto-klub.dk/userfiles/file/sugalaratolugovurife.pdfIn PDF document text
    • http://affichage-comevents.fr/kcfinder/upload/files/56446950506.pdfIn PDF document text
    • https://manage3.realtourvision.com/rtv/ckfinder/userfiles/images/files/latobobusufu.pdfIn PDF document text
    • https://saraelv.no/wp-content/plugins/formcraft/file-upload/server/content/files/161b0002b90329---29261565838.pdfIn PDF document text
    • http://braintradingbcn.com/wp-content/plugins/super-forms/uploads/php/files/df585ae01e25acf09052a98e112da102/gulag.pdfIn PDF document text
    • https://feedproxy.google.com/~r/Gsjc/~3/u-9XGpgKpwY/uplcv?utm_term=light+novel+download+epubPDF 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 PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00092a0e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x92A0E 10752 bytes
SHA-256: e4c4536d141c1899fb4ac6aab76560d9f8b0bb772984ae39286175180d31bd5e
font_01_sfnt_off00094245.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x94245 20228 bytes
SHA-256: 2f7c7a03b8e927842bd0809d71dda28f6bbd0252f42330c2edf08fa3d378175f
font_02_sfnt_off00097709.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x97709 16416 bytes
SHA-256: cfa2c3fbce80cc5607e01af033b793d17c57c214fb1d96e845eedea48cccd336
font_03_sfnt_off00098da7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x98DA7 16228 bytes
SHA-256: 6de2e4de3e01fd5ed443d1209e1dacf3a9d2e38faa1ffa722a59a0423b67245f