Malicious PDF — malware analysis report

Static analysis result for SHA-256 793887f207e5e2c6…

MALICIOUS

PDF

87.9 KB Created: 2021-10-06 23:18:12 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-15
MD5: 9a6a70939ded2c25e228758e5759f3f5 SHA-1: 90633aa807b1f807f79dd63b89dd12a970f557c2 SHA-256: 793887f207e5e2c6a1a7db85960685f2e683f7fc8df42b844d5d7f5f14644ff4
156 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9974

Heuristics 6

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://pistant.ru/uplcv?utm_term=section+19+road+traffic+act PDF link annotation
    • http://iscyber.com/userfiles/files/tasakopowegol.pdfIn PDF document text
    • http://panyuchen.com/ckfinder/userfiles/site_eachfun_com/files/34098156747.pdfIn PDF document text
    • http://uni-farm.pl/ckfinder/userfiles/files/sugikamivomubisozif.pdfIn PDF document text
    • http://rrarental.org/upload/file/11107954381.pdfIn PDF document text
    • http://safires.cz/ckfinder/userfiles/files/3192303867.pdfIn PDF document text
    • https://toananhmedical.com/uploads/files/55323402857.pdfIn PDF document text
    • http://csc020.com/userfiles/file/20211005035120_r219rc.pdfIn PDF document text
    • https://apskarota.org/userfiles/file/witonowekob.pdfIn PDF document text
    • https://groupunsur1.com/contents/files/11472822452.pdfIn PDF document text
    • http://omni-links-europe.com/images/blog/file/vuzefexorafezijudo.pdfIn PDF document text
    • http://wbbray.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613bf6c727da5---25963519106.pdfIn PDF document text
    • http://sbstroy53.ru/img/files/kosewobez.pdfIn PDF document text
    • https://coachtourbusrental.com/wp-content/plugins/formcraft/file-upload/server/content/files/16145dd58c164e---48326090776.pdfIn PDF document text
    • http://baharemadinah.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613685675a931---896808813.pdfIn PDF document text
    • http://tochalco.com/uploads/files/mowuvir.pdfIn PDF document text
    • http://bukvoznaika.ru/ckfinder/userfiles/files/faratujuvomugimigu.pdfIn PDF document text
    • https://cfbadalona.net/ckdata/files/83922763361.pdfIn PDF document text
    • https://dolupin.com/calisma2/files/uploads/69191497821.pdfIn PDF document text
    • http://drcleancenter.com/uploads/files/202109240448003924.pdfIn PDF document text
    • https://movie2book.com/userfiles/file/fodofoferisejebofoxomagif.pdfIn PDF document text
    • http://geotersrl.it/file/22780066275.pdfIn PDF document text
    • http://kelakewangshangduchang.a9188.com/upload_files/art_files/files/20210915_082726.pdfIn PDF document text
    • https://asiahealth.standrewsdentalsurgeons.com/ckfinder/userfiles/files/fajezoxadekebe.pdfIn PDF document text
    • http://lagostena.it/userfiles/files/vekuxawaketadex.pdfIn PDF document text
    • https://bokseinstituttet.dk/wp-content/plugins/formcraft/file-upload/server/content/files/1614e227a3bbfb---xigekijakuso.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_off0000eebd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEEBD 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_01_sfnt_off000106cf.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x106CF 19412 bytes
SHA-256: c88eb3ace7984997584a173ce169f542131b3e3935b5a75d07c312dbc4b8d2ef
font_02_sfnt_off00013982.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x13982 10548 bytes
SHA-256: 9aacb17a3ea7b684520b52e9ffef3355d39a1a20b146d85c1a6bdec8af54bc98