Malicious PDF — malware analysis report

Static analysis result for SHA-256 f87f85d19972e442…

MALICIOUS

PDF

212.6 KB Created: 2021-12-27 09:52:04 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-16
MD5: 5366b6bec31fb79c15500d5087c0cc45 SHA-1: fca4f333dfe66c61756aa04734de1b7a8f3bdfef SHA-256: f87f85d19972e44214da6cca65b68f8f37036fd3a68d1329406f54677fe0daa3
166 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.8415

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://archism.ru/uplcv?utm_term=betting+raja+movie+3gp PDF link annotation
    • http://www.humsufi.com/fckimages/file/88896533511.pdfIn PDF document text
    • https://frenstravel.com/assets/ckfinder/userfiles/files/degum.pdfIn PDF document text
    • https://laundrybyconrads.com/nbloom/fckuploads/file/tobusikupoximenoretet.pdfIn PDF document text
    • http://quickfix-poland.com/wp-content/plugins/formcraft/file-upload/server/content/files/1618eb48c3b785---23924348214.pdfIn PDF document text
    • http://xn----7sbakif2a3azdub.xn--p1ai/admin/ckfinder/userfiles/files/33052262868.pdfIn PDF document text
    • https://aslplastic.com/ckfinder/userfiles/files/tebina.pdfIn PDF document text
    • http://sbstroy53.ru/img/files/11409846359.pdfIn PDF document text
    • http://vdgairconditioning.nl/wp-content/plugins/formcraft/file-upload/server/content/files/1619b23067be56---33668760449.pdfIn PDF document text
    • http://lezeckastenakosice.sk/upload/files/bupusenofuvitu.pdfIn PDF document text
    • http://scales-center.com/shop/fck_file/file/devowoxinadugogusa.pdfIn PDF document text
    • https://www.cheeweitay.com/admin/kcfinder/upload/files/62059691278.pdfIn PDF document text
    • http://luxlustry.ru/img/upload/11257367235.pdfIn PDF document text
    • http://onroerendgoedindex.nl/images/uploads/36118206957.pdfIn PDF document text
    • http://sunpix.ru/img/lib/file/3812988643.pdfIn PDF document text
    • https://kolkatanagariksammelan.org/ckfinder/userfiles/files/zebizutojupajalokipugidan.pdfIn PDF document text
    • http://ecohort.com/userfiles/files/semuvev.pdfIn PDF document text
    • https://serihosting.com/calisma2/files/uploads/81692076889.pdfIn PDF document text
    • http://eskuvotoszkanaban.hu/editor_up/28215918285.pdfIn PDF document text
    • https://ahha.az/userfiles/file/35147004167.pdfIn PDF document text
    • http://centonze-vini.com/userfiles/files/zodububeborafivofajoza.pdfIn PDF document text
    • http://ventima.ru/userfiles/file/24459445764.pdfIn PDF document text
    • https://vico-inmobiliaria.com/ckfinder/userfiles/files/51590359994.pdfIn PDF document text
    • https://drahmetbostanci.com/wp-content/plugins/formcraft/file-upload/server/content/files/1615d2cdb9ddf0---20856840313.pdfIn PDF document text
    • https://www.le-domaine-de-hauterive.fr/ckfinder/userfiles/files/69113888210.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_off0002e680.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2E680 16416 bytes
SHA-256: cfa2c3fbce80cc5607e01af033b793d17c57c214fb1d96e845eedea48cccd336
font_01_sfnt_off0002fd24.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2FD24 10804 bytes
SHA-256: 0083046160b898e4c98909a575cc0cd872e2da6d679f7d0e43e61eb34415e8a4
font_02_sfnt_off00031611.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x31611 17696 bytes
SHA-256: a4fb73e5db7c5934f4d07dcfc4875cef7c1c7e541728ff3cd626b25107443c18