Malicious PDF — malware analysis report

Static analysis result for SHA-256 f9907d16046022c8…

MALICIOUS

PDF

85.3 KB Created: 2021-10-07 02:59:41 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-13
MD5: cb7d1710a09cc6755c21fb08738123e0 SHA-1: 49250c135ce2fd4dd1b616efc2d28a582f7d7266 SHA-256: f9907d16046022c898ba8bd0aeafefc34081fedcc22341669f7f9ff04af74509
156 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9974

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
  • 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.
  • Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM
    Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. 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://pixomot.ru/uplcv?utm_term=phonetic+aspect+of+language+deals+with PDF link annotation
    • https://talaa-obour.net/webmisr/uploadwebmisr/file/93603591283.pdfIn PDF document text
    • https://wita.lt/images/files/bujelalirewuvetizadod.pdfIn PDF document text
    • https://horacebatten.com/ckfinder/userfiles/files/3457144748.pdfIn PDF document text
    • https://veglifekc.org/wp-content/plugins/super-forms/uploads/php/files/zunudesukejo.pdfIn PDF document text
    • http://autosoftware.company/autoresponders_images/files/56190435762.pdfIn PDF document text
    • http://kht.civilkozpont.hu/uploads/file/vatis.pdfIn PDF document text
    • http://cuanhuadanang.vn/uploads/image/files/megaregevezediwaxubofir.pdfIn PDF document text
    • http://movitecnic.fr/ressource/site-image/files/11326464421.pdfIn PDF document text
    • http://phuketdriveschool.com/userfiles/file/ximavimebeluniduranawejid.pdfIn PDF document text
    • https://netron.pt/app/webroot/media/files/sunabe.pdfIn PDF document text
    • http://www.gdchgs.com/admin/img/files/gifedojojadetijotukoxeka.pdfIn PDF document text
    • https://alarrabnews.com/images/content/content/file/vodotemo.pdfIn PDF document text
    • http://halvani.com/wp-content/plugins/formcraft/file-upload/server/content/files/161402f464af69---14225621384.pdfIn PDF document text
    • https://hashtag.school/userfiles/file/83362794954.pdfIn PDF document text
    • http://yishiweb.com/upfiles/files/20210912_141534.pdfIn PDF document text
    • http://getwealthythisyear.com/ckfinder/userfiles/files/11290116415.pdfIn PDF document text
    • http://olympiad-bigben.ru/ckfinder/userfiles/files/gazidaxazesefitikulorino.pdfIn PDF document text
    • http://argra.rs/wp-content/plugins/formcraft/file-upload/server/content/files/1615c108ae3020---42092802706.pdfIn PDF document text
    • http://jump360.co/upload/files/20210924034628.pdfIn PDF document text
    • http://eau-msu.ru/ckfinder/userfiles/files/83642161414.pdfIn PDF document text
    • https://jamurgoreng.net/contents/files/14211424994.pdfIn PDF document text
    • http://sashtraayurveda.com/ckfinder/userfiles/files/jebirup.pdfIn PDF document text
    • https://uaqbakery.com/wp-content/plugins/formcraft/file-upload/server/content/files/16158e7c2aebd1---47651058009.pdfIn PDF document text
    • http://alexlunacoach.com/img/editor/file/9634541814.pdfIn PDF document text
    • http://sandsflooring.co.uk/ckfinder/userfiles/files/rawanunurazirevifopod.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_off0000e054.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE054 10984 bytes
SHA-256: dcb9958c1591dc804d6a67100191d337e983cec65c9f5fc9e24ecaee3555d255
font_01_sfnt_off0000f9a9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF9A9 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_02_sfnt_off000111bb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x111BB 20796 bytes
SHA-256: e9c4cad10d0f0208e245fd77cf130f1a622e2c84c03f3fb2ed9188ce623eb5b1