Malicious PDF — malware analysis report

Static analysis result for SHA-256 3bcfe37feb466de2…

MALICIOUS

PDF

317.0 KB Created: 2022-02-01 10:10:51 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-05-21
MD5: a6329fad23d8c1a2046837adf94c5159 SHA-1: 968ea541d427598e7a8e9dd846f428e67684c805 SHA-256: 3bcfe37feb466de25bf1641e6ef8f64980d4132ea0f9f8be1198fc4c525092f4
226 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.7501

Heuristics 7

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • Viral-video clickbait PDF links to suspicious host critical SE_VIRAL_VIDEO_CLICKBAIT_LINK
    Document uses viral/leaked-video lure text and links to a suspicious disposable-looking web host. This is a clickbait/traffic-scam carrier shape rather than a benign PDF link.
  • 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://andreevka.topmebli.com/content/xuploadimages/file/mobasexokeruzasu.pdf In PDF document text
    • http://srmtteaparty.com/uploads/files/202110280750334157.pdfIn PDF document text
    • http://www.iqubz.com/wp-content/plugins/formcraft/file-upload/server/content/files/16156cb0bd5fe4---gabodesi.pdfIn PDF document text
    • https://www.sidertest.it/wp-content/plugins/formcraft/file-upload/server/content/files/16177c8a7db7a9---vetusijobupu.pdfIn PDF document text
    • https://www.saenger-ohg.de/wp-content/plugins/formcraft/file-upload/server/content/files/1615855abc1dd8---xegukekulo.pdfIn PDF document text
    • http://www.siphonicflowmandiri.com/upload/files/ludupu.pdfIn PDF document text
    • http://dichvugiayphep.biz/upload/ck/files/85959669922.pdfIn PDF document text
    • http://thanhlapcongtykiengiang.com/upload/ck/files/divezakime.pdfIn PDF document text
    • http://tagsu.com/attachments/fckattachments/file/43367831478.pdfIn PDF document text
    • http://take114.kr/FileData/ckfinder/files/20220130_B626995732ED95D9.pdfIn PDF document text
    • https://refundsrefunds.com/wp-content/plugins/formcraft/file-upload/server/content/files/161a06980e5fb3---rotatilebowanifile.pdfIn PDF document text
    • http://www.peplex.it/wp-content/plugins/formcraft/file-upload/server/content/files/161719ee17abfe---72505951631.pdfIn PDF document text
    • https://supzg.ch/userfiles/files/18222654896.pdfIn PDF document text
    • http://yuli-china.ru/d/files/78729566697.pdfIn PDF document text
    • http://mrcubezpieczenia.pl/app/webroot/media/files/64802720932.pdfIn PDF document text
    • https://crfgo.org.br/painel/geral/sistema/php/kcfinder/upload/files/wopovutojujinegelo.pdfIn PDF document text
    • http://egresiangus.com/admin/kcfinder/upload/files/zunanusasupu.pdfIn PDF document text
    • http://hqshop24.com/userfiles/file/tetuzopefanu.pdfIn PDF document text
    • http://ekstelekom.com/userfiles/file/gekevaf.pdfIn PDF document text
    • http://bjsddesign.com/filespath/files/20211120013523.pdfIn PDF document text
    • http://arkapizzeria.com/kcfinder/upload/files/42300147861.pdfIn PDF document text
    • http://lotuscourtpune.com/wp-content/plugins/super-forms/uploads/php/files/27db9496e54c8a1810a6ca1b59ab3f87/96174709879.pdfIn PDF document text
    • https://picinterior.com/ckfinder/userfiles/files/beziluj.pdfIn PDF document text
    • http://balbu.eu/uploads/news/file/dojobavuputome.pdfIn PDF document text
    • http://rld-carbon.ru/file/14777463292.pdfIn PDF document text
    • https://aslimitada.com/userfiles/file/mimerosexipesulo.pdfIn PDF document text
    • https://alternativi.brtim.com/uploads/wysiwyg/files/19786860244.pdfIn PDF document text
    • http://ei-windykacja.pl/upload/file/4375347880.pdfIn PDF document text
    • http://sibstroiexp.ru/userfiles/file/33888542132.pdfIn PDF document text
    • http://pieseclimaauto.com/files/file/tuvaruxatimabodaju.pdfIn PDF document text
    • https://tevav.co.za/XSRYdR1H?utm_term=aflatoon+cartoon+video+freePDF link annotation
    • http://andreevka.topIn 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_off00048a69.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off00048a69.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00048a69.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x48A69 17120 bytes
SHA-256: cfcb5e6ef16682c78f8c7c63a23081b78d2e15c5d4717128e72fdd280c036f52
font_01_sfnt_off0004b74a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4B74A 10348 bytes
SHA-256: 11e347e2953790033850963990e25e443252a29b3203f7a090f8e59a78f6d863
font_02_sfnt_off0004cecd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4CECD 16416 bytes
SHA-256: cfa2c3fbce80cc5607e01af033b793d17c57c214fb1d96e845eedea48cccd336