Malicious PDF — malware analysis report

Static analysis result for SHA-256 726578d04244fb58…

MALICIOUS

PDF

345.2 KB Created: 2022-03-21 16:46:47 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-05-11
MD5: fc2f593c81f3dd19c14933ee6d5fc649 SHA-1: cc5eafaee23932012bf178d19bf5a140867ecd83 SHA-256: 726578d04244fb585e23f1771e614f68436b7ddb5b60c4a704e87d9c7c9ce647
211 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.6817

Heuristics 8

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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.
  • Malformed active-content stream length medium PDF_MALFORMED_EXPLOIT_STREAM_LENGTH
    A PDF stream that carries active/exploit-looking content has a declared /Length that does not match the recovered stream body. Malformed stream boundaries and length mismatches are common parser-evasion/supporting evidence around Reader exploit streams.
  • 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.
  • PDF advertises pirated movie streaming/download medium PDF_PIRACY_STREAMING_LURE
    PDF rendered text advertises free full-movie streaming or download using piracy-brand names or a 'full movie + download/free/watch' intent phrase — recovered after folding the styled Unicode confusables the campaign uses to hide those keywords from plain-text detection. These are disposable SEO-spam carriers that route users to malvertising, fake-player, and scam pages; the PDF itself is inert.
  • 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://loheb.co.za/XSRYdR1H?utm_term=standard+lesson+commentary+2017-+18 PDF link annotation
    • http://ustunongel.com/image/files/26848411890.pdfIn PDF document text
    • http://mhzsolutionz.com/userfiles/file/zukolobepojevibizanapibo.pdfIn PDF document text
    • http://bantinnhadat.com/users/files/dibolivowavafuvefujuno.pdfIn PDF document text
    • http://flussobjekte.at/kcfinder/upload/files/65918783081.pdfIn PDF document text
    • https://frezcentrum.hu/kcfinder/upload/files/68855047696.pdfIn PDF document text
    • http://matraholding.hu/images/userfiles/files/4803924240.pdfIn PDF document text
    • https://asset-books.com/userfiles/file/55567347975.pdfIn PDF document text
    • http://jubileejec.com/userfiles/files/10892257256.pdfIn PDF document text
    • https://growlocals.com/wp-content/plugins/super-forms/uploads/php/files/4c6a5bc7418874d30b77a26716943678/daronikasusawuv.pdfIn PDF document text
    • http://www.kermaz.fr/js/kcfinder/upload/files/3333247484.pdfIn PDF document text
    • https://thingstodobahrain.net/ckfinder/userfiles/files/73356373748.pdfIn PDF document text
    • https://sieuthimaytinhcu.vn/upload/files/46368224388.pdfIn PDF document text
    • http://autokolcsonzoszolnok.hu/admin/fck_upload/file/siletubuzawelusazebu.pdfIn PDF document text
    • https://oriolefashion.com/ckfinder/userfiles/files/numepixuve.pdfIn PDF document text
    • http://joshuadacosta.com/wp-content/plugins/formcraft/file-upload/server/content/files/162149d59742fc---80999152898.pdfIn PDF document text
    • https://sandalyecenneti.com/wp-content/plugins/super-forms/uploads/php/files/6f955icjjan2jf4s6q680td8sc/95193098924.pdfIn PDF document text
    • https://sportsslife.net/upload/ckfinder/files/49887585874.pdfIn PDF document text
    • http://www.ak-kresy.pl/newsysn/kcfinder/upload/files/32005526385.pdfIn PDF document text
    • http://morpheus-architects.com/file_media/file_image/file/79511266341.pdfIn PDF document text
    • http://thechitay.com/uploads/userfiles/file/65862196191.pdfIn PDF document text
    • http://pferdplus.at/sites/pferdplus.at/files/file/jogokafijam.pdfIn PDF document text
    • https://areshin.ru/wp-content/plugins/super-forms/uploads/php/files/34d22f8b5971cb05a41b9a0e94da35c0/78746440320.pdfIn PDF document text
    • http://www.kliningstroy.ru/wp-content/plugins/formcraft/file-upload/server/content/files/161fda4401574a---duved.pdfIn PDF document text
    • https://bykevin.com/wp-content/plugins/super-forms/uploads/php/files/21ae9f73f1865445479680f5d99e7cf9/65694001630.pdfIn PDF document text
    • http://elektro-galerie-hamburg.de/userfiles/file/gobegikibelerakej.pdfIn PDF document text
    • https://hylyt.co/wp-content/plugins/super-forms/uploads/php/files/82a0865b71205aeb4c1e7007d2441f5d/79687060200.pdfIn PDF document text
    • https://antalis.emailingmanager.com/uploads/editor/file/18558931753.pdfIn PDF document text
    • https://www.yulava.es/js/libraries/ckeditor/kcfinder/upload/files/18121444941.pdfIn PDF document text
    • http://studiofranzoni.eu/userfiles/files/piror.pdfIn PDF document text
    • https://onishi-kyosendo.jp/archive/63663134984.pdfIn PDF document text
    • http://www.mab-solutions.fr/upload/file/62034933724.pdfIn PDF document text
    • http://evevoyance.fr/adh/.-/file/mowumil.pdfIn PDF document text
    • http://atelier-tilia.cz/userfiles/files/16261691259.pdfIn PDF document text
    • https://soalmatematik.com/userfiles/file/xefepimatuleritoda.pdfIn PDF document text
    • https://bedandbreakfastholten.nl/userfiles/file/5894995042.pdfIn PDF document text
    • http://bochkari1.ru/pic/file/setavatebojo.pdfIn PDF document text
    • http://biopole-clermont.com/uploads/gestion_contenu/files/bivazanu.pdfIn PDF document text
    • https://webgirls-studio.com/wp-content/plugins/formcraft/file-upload/server/content/files/162243113a2c7c---28890489563.pdfIn PDF document text
    • https://loyallcanada.com/editor_files/file/wevuraraxugelazarosege.pdfIn PDF document text
    • http://another-partner.morefriendship.com/upload/files/dojujebigujip.pdfIn PDF document text
    • http://pleasanton.com/wysiwygfiles/file/92788277481.pdfIn PDF document text
    • http://asesorialuishervas.com/wp-content/plugins/formcraft/file-upload/server/content/files/1621b9ca14da3f---63456781704.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_off0004f2d9.bin)
    +1 more URL(s)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0004f2d9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4F2D9 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9
font_01_sfnt_off000509f9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x509F9 11212 bytes
SHA-256: bc47704e487de92723a7a86e299f6dbd4bbcd90fc43affc182c5d0663c3a9e8f
font_02_sfnt_off00052468.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x52468 18552 bytes
SHA-256: 9bb39364c407b506c9c6e7a0f533047782aaa6603cc4161b597ffc512aee8e61