Malicious PDF — malware analysis report

Static analysis result for SHA-256 5d3c681956e8442b…

MALICIOUS

PDF

427.0 KB Created: 2022-02-02 01:49:41 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-05-16
MD5: 9d5479196c85ef9d1e6955a7291e94f7 SHA-1: 3638ccec816b4c9a7aa094138a17572a2ac8a80a SHA-256: 5d3c681956e8442b28f94624b008f10fd7d3399727f1d2eb58f23cd9a1bba135
161 Risk Score

Machine Learning

  • Nyx PDF Classifier suspicious score 0.5000

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
  • 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.
  • 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://podar.co.za/XSRYdR1H?utm_term=fistful+of+dollars+sheet+music PDF link annotation
    • http://www.mediacomriccione.it/wp-content/plugins/formcraft/file-upload/server/content/files/1619bba775ae0b---zisilobaremexuvef.pdfIn PDF document text
    • https://uncme.org.br/Gerenciador/kcfinder/upload/files/bazupiluzininamuxufuliro.pdfIn PDF document text
    • http://tractortools.cz/ckfinder/userfiles/files/xewusodifigetowutegimuvut.pdfIn PDF document text
    • http://josephfellerlaw.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/wulofopifivulaso.pdfIn PDF document text
    • http://www.lavalledesign.com/wp-content/plugins/formcraft/file-upload/server/content/files/161b28b9eafb43---26963188559.pdfIn PDF document text
    • http://grosfillex.com.br/admin/plugins/ckeditor/kcfinder/upload/files/pugifijemozamebukev.pdfIn PDF document text
    • http://xn-----6kcftbqgtghjv5bf5gydg7b.xn--p1ai/files/files/jumelaropapukawesa.pdfIn PDF document text
    • http://medizator.ru/ckfinder/userfiles/files/mosazosasovomale.pdfIn PDF document text
    • http://studiotecnicoarduini.eu/userfiles/files/zewizibujenuxepa.pdfIn PDF document text
    • http://africansafaris-spain.com/FCKeditor/editor/filemanager/connectors/php/connector.php?Command=FileUpload&Type=File&CurrentFolder=%2Ffile/tidonukoworunukagutapax.pdfIn PDF document text
    • https://un7un9b3rl1pa7-99.com/contents/files/80263694831.pdfIn PDF document text
    • http://bearbuy888.coco1490.com/upload/file_folder/file/84492884019.pdfIn PDF document text
    • https://aspart.ro/ckfinder/userfiles/files/nixutudofadusisetu.pdfIn PDF document text
    • https://www.restaurant-latableedevercel.com/ckfinder/userfiles/files/sojodaxedawiwikanevof.pdfIn PDF document text
    • https://www.sexualaufklaerung-schule.ch/ck/ckfinder/userfiles/files/96695895648.pdfIn PDF document text
    • http://fandimnarodaku.cz/upload/file/51504360982.pdfIn PDF document text
    • http://photopuzzle.net/userData/board/file/kavofib.pdfIn PDF document text
    • https://transmilenio.net/datamont/userfiles/file/58596207007.pdfIn PDF document text
    • http://homearcky.nl/userfiles/file/30151926164.pdfIn PDF document text
    • http://kocavietnam.com/upload/files/43705202150.pdfIn PDF document text
    • http://franklcalabreseattorney.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/mimuvibuzuvunera.pdfIn PDF document text
    • http://mclarenquartz.in/ci/userfiles/files/bosokal.pdfIn PDF document text
    • https://lawtutors.co.uk/js/ckfinder/userfiles/files/61035743131.pdfIn PDF document text
    • https://clinicaalcantara.es/sites/default/files/userfiles/file/65716243046.pdfIn PDF document text
    • http://s2ipower.com/survey/userfiles/files/90246427399.pdfIn PDF document text
    • http://hytechcommunications.com/userfiles/file/ropaxamozowuxexudawo.pdfIn PDF document text
    • http://ciarajewellery.com/editor_upload/file/90664533448.pdfIn PDF document text
    • http://eros-arena.de/eros/userfiles/file/83680114563.pdfIn PDF document text
    • https://pakianco.ir/data/image/uploads/news/files/58280257336.pdfIn PDF document text
    • https://thesmithgrouphouston.com/wp-content/plugins/super-forms/uploads/php/files/9107743571c548e1b651a127519c2a4b/bojujimufonidesuwixegi.pdfIn PDF document text
    • https://agmatbaa.com/upload/files/nejatizeritadudukutov.pdfIn PDF document text
    • http://duonglaohanoi.com/userfiles/file/24462535714.pdfIn PDF document text
    • https://ihappywash.com/uploads/files/202108170012489812.pdfIn PDF document text
    • http://nedvizhimost-v-sharm-el-sheikhe.ru/uploads/files/fumut.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_off00064010.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off00064010.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00064010.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x64010 10712 bytes
SHA-256: fd3f365ec795748120dc4021c9c125a212a752a999f81b68c254c9951d8ff7c6
font_01_sfnt_off000658a7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x658A7 17036 bytes
SHA-256: f9d8094e027a7b05568a7709fb5605a879368f454ec1bd46d6e5851fdb8624f9
font_02_sfnt_off00068483.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x68483 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9