Malicious PDF — malware analysis report

Static analysis result for SHA-256 4af6c899a1f195d6…

MALICIOUS

PDF

329.7 KB Created: 2022-02-21 21:45:18 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-06
MD5: 3f2ac57fe6904fbb7dc52a4ae5c4288e SHA-1: fdd3c7d7afd511c1c06af26d1860c9516283681d SHA-256: 4af6c899a1f195d6904fae45abf868dea1b706a2c5cad59deb940235702674f9
166 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.6933

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://lovig.co.za/XSRYdR1H?utm_term=dhs+government+travel+credit+card+training+answers PDF link annotation
    • http://braintradingbcn.com/wp-content/plugins/super-forms/uploads/php/files/23c147456f0ba22749c70a8306704e96/moforudi.pdfIn PDF document text
    • http://xn--2-140-swe8h.xn--p1ai/files/85603678971.pdfIn PDF document text
    • https://harmony.im/userfiles/file/91229307719.pdfIn PDF document text
    • http://www.oomedia.com.tw/ckfinder/userfiles/files/radetamodowelebixawefajow.pdfIn PDF document text
    • http://www.themixchange.com/userfiles/files/sexeguxonavaxifibujuridan.pdfIn PDF document text
    • http://sor1310.com/userfiles/file/rujodabutapasexibaz.pdfIn PDF document text
    • https://satesayap.com/contents/files/kekabipuwikewovotivodaw.pdfIn PDF document text
    • https://tolgyesvolgy.hu/userfiles/file/53432582273.pdfIn PDF document text
    • http://flyingkirin.com/uploadfiles/file/1504070253.pdfIn PDF document text
    • https://www.q-jin.ne.jp/ckfinder/userfiles/files/52923774729.pdfIn PDF document text
    • http://youngthisyear.com/ckfinder/userfiles/files/77739437141.pdfIn PDF document text
    • http://cbcom.fr/ressource/site-image/files/vapawevipabeguguxizafa.pdfIn PDF document text
    • http://matonaklawfirm.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/11621302095.pdfIn PDF document text
    • https://testgit.begurholidays.com/uploads/userfiles/files/tarizifetofokiteko.pdfIn PDF document text
    • http://fandimnarodaku.cz/upload/file/vejolusakuwerixep.pdfIn PDF document text
    • https://locoffice.ru/userfiles/file/demokeda.pdfIn PDF document text
    • http://jjw-led.com/userfiles/file/28238838380.pdfIn PDF document text
    • http://highdeal.linkeo.net/ckfinder/userfiles/files/simelovabujorovomuniva.pdfIn PDF document text
    • http://cobe-ing.it/userfiles/files/14805766996.pdfIn PDF document text
    • https://pacificengineering.co/imagenes_cont/sitio/documentos/228022124.pdfIn PDF document text
    • http://yas-center.ru/userfiles/file/lipowopikulipodejoso.pdfIn PDF document text
    • https://gamletaarnhuset.no/wp-content/plugins/formcraft/file-upload/server/content/files/16174c8e455c13---tifopidezokupuvazolur.pdfIn PDF document text
    • http://thegioituigiay.net/uploads/files/burebukedudivepa.pdfIn PDF document text
    • https://kaowei.tw/image/files/20211126_224425.pdfIn PDF document text
    • https://zifu-tech.com/app/webroot/userfiles/files/64253944536.pdfIn PDF document text
    • http://www.hkqi.com/wp-content/plugins/formcraft/file-upload/server/content/files/161c945b6e628a---lamoborijixefamarafone.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 PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0004ba06.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4BA06 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9
font_01_sfnt_off0004d126.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4D126 10968 bytes
SHA-256: 283b906132440eaf6235db3d18b407c35a7c6003ba8f90a25e37d0af486c267b
font_02_sfnt_off0004ea42.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4EA42 17308 bytes
SHA-256: f59c7eecaf71ec05440bef58f9c29a2ee4d7e13ab60b5e1a884324bed13640bf