Malicious PDF — malware analysis report

Static analysis result for SHA-256 9490b048d326bdb7…

MALICIOUS

PDF

82.3 KB Created: 2021-09-06 19:31:33 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-04-11
MD5: 1aa38f879f61eeea02b10d249075523e SHA-1: c331bff38f02a30925f035f768813a48ab05be93 SHA-256: 9490b048d326bdb7136e4aa454b85a3ecadf5b30c4ed722ac55906f810e94181
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://victory-agency.com/wp-content/plugins/formcraft/file-upload/server/content/files/16086150b76976---26797587228.pdf In PDF document text
    • https://irantruck.ir/data/file/46114843876.pdfIn PDF document text
    • https://rubfila.in/files/file/95835668254.pdfIn PDF document text
    • http://tweedehandswikkelaar.nl/app/webroot/files/userfiles/files/62328929329.pdfIn PDF document text
    • https://jfefood.com/wp-content/plugins/super-forms/uploads/php/files/bcd364f4fa515efe5c97a6f585ac084e/solid.pdfIn PDF document text
    • http://seoulsquare.com/userfiles/file/66336662840.pdfIn PDF document text
    • http://3duct.com/wp-content/plugins/formcraft/file-upload/server/content/files/160cffe891eab8---8339110176.pdfIn PDF document text
    • http://sweepinstyle.com/userfiles/file/nagadivivisivunepidopaxi.pdfIn PDF document text
    • http://trainternational.in/wp-content/plugins/formcraft/file-upload/server/content/files/160985a614ba36---52859261652.pdfIn PDF document text
    • http://mijneigenlift.nl/wp-content/plugins/formcraft/file-upload/server/content/files/1611088f9047a6---kiwaluzenabolimufina.pdfIn PDF document text
    • https://www.edutechusa.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c70d1fa529e---simugegugitejijov.pdfIn PDF document text
    • https://ercrs.org/wp-content/plugins/super-forms/uploads/php/files/dgffsd84ajf7tub7jktor6tvq5/63427570649.pdfIn PDF document text
    • http://yulintimber.cn/d/files/76655283724.pdfIn PDF document text
    • http://casaperferiesantamariagoretti.com/writable/public/userfiles/file/vekuwizemaxusevu.pdfIn PDF document text
    • https://atl-50.com/files/file/45589493470.pdfIn PDF document text
    • https://unicornproduction.gr/wp-content/plugins/super-forms/uploads/php/files/2179233c3a72ecce92b8114f390416f4/sibona.pdfIn PDF document text
    • https://studiogreenwich.ru/wp-content/plugins/super-forms/uploads/php/files/5a45427f09b3ba637d651891f741468f/fixufubugoxonew.pdfIn PDF document text
    • https://fid-data.fr/app/webroot/uploaderfiles/jubufejorasor.pdfIn PDF document text
    • http://transfertrolley.cn/d/files/malurixasedijesiruriro.pdfIn PDF document text
    • https://farmacieitaliane.com/documenti/file/fixisunan.pdfIn PDF document text
    • http://gennarimaq.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/160abcc232db74---90449861161.pdfIn PDF document text
    • https://m-co.de/wp-content/plugins/super-forms/uploads/php/files/rd637qh1rrf7rdv3439qa543gj/59311716863.pdfIn PDF document text
    • https://costumeworld.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607e43270c539---32195563276.pdfIn PDF document text
    • https://ambient-interier.cz/files/files/27468516317.pdfIn PDF document text
    • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/DOqCt-cVA4I/uplcv?utm_term=business+research+paper+format+pdfPDF 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 extracted file (font_00_sfnt_off0000df62.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off0000df62.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000df62.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDF62 10992 bytes
SHA-256: 7f545d801266556c3027bf81f26165dd5a37694d8671a530a5c129d28bc973d4
font_01_sfnt_off0000f8c0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF8C0 16580 bytes
SHA-256: 2affc649094459ad85e056dd2b614661ac5fc73613d9c59559e2e9dbe614e165
font_02_sfnt_off00012332.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12332 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1