Malicious PDF — malware analysis report

Static analysis result for SHA-256 1dc124f246c6047c…

MALICIOUS

PDF

512.1 KB Created: 2021-12-17 16:04:32 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-05-30
MD5: 8a5b671ae44a6640f4aac0be9836a86e SHA-1: 56ec47b1f58629e22a63804bab788f41e55a7ae5 SHA-256: 1dc124f246c6047c12d3cca74137ee2160e002897d7f4942dfff874fe1271a81
144 Risk Score

Machine Learning

  • Nyx PDF Classifier suspicious score 0.4554

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.
  • Embedded JS stream low PDF_JS
    PDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
  • 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://www.chauffeur-prive-nice.fr/wp-content/plugins/formcraft/file-upload/server/content/files/1618d0431b7458---254742842.pdf In PDF document text
    • http://webinaris.biz/ckfinder/userfiles/publics/files/85171869510.pdfIn PDF document text
    • https://www.davinci.dk/wp-content/plugins/formcraft/file-upload/server/content/files/161b3b1f08e998---vodinutepifimulu.pdfIn PDF document text
    • http://studionegrelli.it/userfiles/files/88118482002.pdfIn PDF document text
    • https://universitecentrale.net/uploads/FCK_files/file/rakufateweravataruru.pdfIn PDF document text
    • http://vegman-kzn.com/ckfinder/userfiles/files/71489472573.pdfIn PDF document text
    • http://minhvuongthuphap.com/upload/ck/files/16853519068.pdfIn PDF document text
    • https://enville.com/wp-content/plugins/formcraft/file-upload/server/content/files/161ad37bc3a609---watadabifulus.pdfIn PDF document text
    • https://giltmorestukko.hu/ckfinder/userfiles/files/gikofalelumamezujapep.pdfIn PDF document text
    • https://edinburghpools.com/contents/files/togewik.pdfIn PDF document text
    • https://exam12.menapoint.com/app/webroot/upload/files/52587539204.pdfIn PDF document text
    • http://nagakuratrading.com/js/upload/files/79625482766.pdfIn PDF document text
    • https://softwebstar.com/shop/userfiles/file/54880464998.pdfIn PDF document text
    • http://tuclubcr.com/campannas/file/71183093254.pdfIn PDF document text
    • http://www.fred-robin.com/ckfinder/userfiles/files/76286305262.pdfIn PDF document text
    • http://uralcomservis.ru/crn_fls/crn_files/fabeselumowunar.pdfIn PDF document text
    • http://americandeliorder.com/uploads/files/15501147258.pdfIn PDF document text
    • http://gptools.net/userfiles/file/11553271459.pdfIn PDF document text
    • http://eskuvoiiranytu.hu/blog/file/2941239959.pdfIn PDF document text
    • http://www.hgekc.com/media/userfiles/file/mebanujelotopavezafes.pdfIn PDF document text
    • https://arichaindia.com/userfiles/file/13841991631.pdfIn PDF document text
    • http://recruiters-zone.com/wp-content/plugins/formcraft/file-upload/server/content/files/161bbb0224cc5c---60252901503.pdfIn PDF document text
    • http://itagqatar.zajeltel.com/itag/file/files/39021006000.pdfIn PDF document text
    • https://feedproxy.google.com/~r/Gsjc/~3/896FEnmJZlk/uplcv?utm_term=how+to+address+a+letter+to+irelandPDF 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_off0007933e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7933E 10320 bytes
SHA-256: df11261c28e8531a71d53dfc2d88db48b78e0f917e4ea9e792472a807b87ecbf
font_01_sfnt_off0007aa9c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7AA9C 16416 bytes
SHA-256: cfa2c3fbce80cc5607e01af033b793d17c57c214fb1d96e845eedea48cccd336
font_02_sfnt_off0007c13b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7C13B 18408 bytes
SHA-256: 74372847796cd14a734197161fcad49ec631e5cfad4d197b77f38751231388d2