Malicious PDF — malware analysis report

Static analysis result for SHA-256 c5d448eb8e95e5d4…

MALICIOUS

PDF

208.2 KB Created: 2021-12-07 04:26:56 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-28
MD5: 98c5da33cf603bb4c086785c56cd01ab SHA-1: 88967a15403dbfae7e13d01326d262eb7b30c451 SHA-256: c5d448eb8e95e5d46c60f2bbcd49ad5aae291b0aae3f8e1cc168399181453087
166 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.8208

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://lcd96.ru/wp-content/plugins/super-forms/uploads/php/files/2d50758c90888bb762cad924c45d90ea/85356248599.pdf In PDF document text
    • http://www.garriagricola.com/wp-content/plugins/formcraft/file-upload/server/content/files/161ad9d1514dd9---lilulebobisawibu.pdfIn PDF document text
    • http://onnetsolution.in/userfiles/file/bodovu.pdfIn PDF document text
    • http://palami.by/images/file/rawuwipinazatipeses.pdfIn PDF document text
    • http://pphjako.pl/userfiles/file/356342713.pdfIn PDF document text
    • https://burstallconrad.com/editor_files/file/vumajutodataw.pdfIn PDF document text
    • https://www.allduniv.ac.in/ckfinder/userfiles/files/kirokudawefiresibaruviw.pdfIn PDF document text
    • https://undergroundtakeout.com/userfiles/file/wuxawosogilerito.pdfIn PDF document text
    • http://marinda.ru/pics/images/file/dovik.pdfIn PDF document text
    • https://www.mobytec.com.br/mobytec/wp-content/plugins/formcraft/file-upload/server/content/files/1612f521d2ea50---28033633625.pdfIn PDF document text
    • https://drticket.ir/basefile/drtiketcom/files/85523987931.pdfIn PDF document text
    • http://oldadmin.k12cart.com/media/files/bizemevijedavil.pdfIn PDF document text
    • http://szm.hu/userfiles/file/51681944269.pdfIn PDF document text
    • http://rayhovietnam.vn/upload/files/fosobaze.pdfIn PDF document text
    • https://nisahanpin.com/calisma2/files/uploads/toxukazipadinovewosox.pdfIn PDF document text
    • http://bularz-auto.pl/images/userfiles/file/xitenadivi.pdfIn PDF document text
    • https://autoprofi.ua/userfiles/file/kexuw.pdfIn PDF document text
    • https://limsurempat.com/contents/files/xanegapoguka.pdfIn PDF document text
    • http://wlpp.net/images/blog/file/31880413347.pdfIn PDF document text
    • http://namadagaskare.ru/ckfinder/userfiles/files/xavinevididimi.pdfIn PDF document text
    • https://www.dyna-tech.nl/wp-content/plugins/formcraft/file-upload/server/content/files/1618ead1da1500---33392953695.pdfIn PDF document text
    • https://esz.jp/img/editor/files/karokag.pdfIn PDF document text
    • http://www.greenfield-sustainability.com/images/files/nigofedezanaz.pdfIn PDF document text
    • https://vinasimex.com/uploads/file/fatodiralijosekunefufugen.pdfIn PDF document text
    • http://kondicionery-ivanteevka.ru/upload_picture/file/3905099461.pdfIn PDF document text
    • http://hoanggiaphatland.com/uploads/image/files/15960385500.pdfIn PDF document text
    • https://miamiuniquelimo.com/wp-content/plugins/formcraft/file-upload/server/content/files/1619794131786a---nepokolisirasagoko.pdfIn PDF document text
    • http://feedproxy.google.com/~r/Xvkpad/~3/HKUGBsJGI0E/uplcv?utm_term=zelda+the+minish+cap+walkthroughPDF 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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0002cfea.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2CFEA 19188 bytes
SHA-256: 96d0581398c87eb99a4ee27253b0f732de746ac81338b12801bcdbfc2ce1b266
font_01_sfnt_off00030126.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x30126 11200 bytes
SHA-256: dd2547a1d3916948b33fcecb9732c97a9df00de1aa19e90d2ae5d14a71146f82
font_02_sfnt_off00031b0e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x31B0E 16416 bytes
SHA-256: cfa2c3fbce80cc5607e01af033b793d17c57c214fb1d96e845eedea48cccd336