Malicious PDF — malware analysis report

Static analysis result for SHA-256 a9cdd73a5b975c97…

MALICIOUS

PDF

370.2 KB Created: 2022-02-12 02:57:24 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-04-25
MD5: f469c80d7e687803840660a3f448ce59 SHA-1: ff9c0d6ef86d10c5ab3ebb34b42707d62139239a SHA-256: a9cdd73a5b975c97f8a5ccd39800ebf05fb537a73d604b75c5ce35f7252cda6d
226 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.8080

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
  • Viral-video clickbait PDF links to suspicious host critical SE_VIRAL_VIDEO_CLICKBAIT_LINK
    Document uses viral/leaked-video lure text and links to a suspicious disposable-looking web host. This is a clickbait/traffic-scam carrier shape rather than a benign PDF link.
  • 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 http://jswenguang.com/uploadfile/file/59080034716.pdf In PDF document text
    • http://congluc.com/upload/files/dimilopubumufokufubov.pdfIn PDF document text
    • https://daluxerealty.com/wp-content/plugins/super-forms/uploads/php/files/3lbvurdbcskvg952l927jmkt27/3563160678.pdfIn PDF document text
    • http://zge-led.com/luodan/images/userfiles/file/mefimomuwo.pdfIn PDF document text
    • https://romalasergroup.com/userfiles/files/tedajageki.pdfIn PDF document text
    • https://bomberosdenavarra.com/userfiles_nexo/files/20147987846.pdfIn PDF document text
    • http://haihengpharm.com/upload/files/melusixaximuwadikexe.pdfIn PDF document text
    • https://possamaiferramenta.it/uploads/file/3514643590.pdfIn PDF document text
    • https://rt-totaalafbouw.nl/userfiles/file/fikisepipukinelozaxoroge.pdfIn PDF document text
    • http://machi-tomo.xyz/js/ckfinder/userfiles/files/56765606035.pdfIn PDF document text
    • http://ulv-fogger.es/d/files/71846797525.pdfIn PDF document text
    • http://comlark.ru/userfiles/files/mitajarekuvadulumofuz.pdfIn PDF document text
    • https://pbpkrosno.com/fckfile/24610320415.pdfIn PDF document text
    • https://scaligeraarredamenti.com/admin/data/files/files/81914690796.pdfIn PDF document text
    • https://amezdigital.com/wp-content/plugins/super-forms/uploads/php/files/e019e3e57e69501af2c27f54544b2845/98367292982.pdfIn PDF document text
    • https://aqualibramontois.be/fckdownload/file/80590454489.pdfIn PDF document text
    • http://pebyte.com/wp-content/plugins/super-forms/uploads/php/files/l5q43bvv55dijgb80ok493hto3/nufafavabupuk.pdfIn PDF document text
    • http://cpgny.com/userfiles/files/sorisexuwitopipusuxe.pdfIn PDF document text
    • http://cosonhuath.com/hinhanh_fckeditor/file/93929838131.pdfIn PDF document text
    • https://www.peeryhotel.com/wp-content/plugins/super-forms/uploads/php/files/1c904724d79e79ff2dbf5de0a4f38190/sufomejokikapesifapanepes.pdfIn PDF document text
    • http://caffepontoni.com/uploads/file/79329671504.pdfIn PDF document text
    • http://eva.am/files/99b1046ba519b447.pdfIn PDF document text
    • https://xo-sound.ru/userfiles/file/79818918497.pdfIn PDF document text
    • http://www.hj-bouwt.be/wp-content/plugins/formcraft/file-upload/server/content/files/1619e5ae8b4f1e---rawaba.pdfIn PDF document text
    • http://thetestmag.com/userfiles/files/masifafuneve.pdfIn PDF document text
    • https://colod.co.za/XSRYdR1H?utm_term=bouchon+lyon+guide+michelinPDF link annotation
    • https://nnkcreations.com/userfiles/file/90680248381.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_off0005555e.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off0005555e.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0005555e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5555E 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9
font_01_sfnt_off00056c79.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x56C79 20108 bytes
SHA-256: 6987cc11817f33c03bb507f78b90d000b848cd2b9dc8ad712ff769960468fc18
font_02_sfnt_off0005a134.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5A134 10556 bytes
SHA-256: 705785806ef5294ab7202d198a0984772f3e3296dc2886885afdbf75aaf593f2