Malicious PDF — malware analysis report

Static analysis result for SHA-256 191698f09d2bf911…

MALICIOUS

PDF

75.7 KB Created: 2021-10-16 09:32:01 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-22
MD5: a640f020f053a2e79416d7f12fcd1cc1 SHA-1: 6c583580bb81ac9b194e56e567fa43deb1cf924a SHA-256: 191698f09d2bf9118ea6b25a577635c5145549676ce1c61e5258467f1430d296
156 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9948

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 http://parkergeneralcontractors.net/userfiles/file/voxomobejupiga.pdf In PDF document text
    • https://verandapattaya.com/userfiles/files/wobuzaxig.pdfIn PDF document text
    • http://serting.eu/userfiles/files/weverovemopizojur.pdfIn PDF document text
    • http://mamitobe.ru/files/file/luzarilosopemu.pdfIn PDF document text
    • https://hotelcorona.ro/files/piraxigegasuzeso.pdfIn PDF document text
    • https://simbhaolipower.com/images/file/nubujazaxitunilepozikax.pdfIn PDF document text
    • https://adamant54.ru/userfiles/files/sowakafomotixedajifoka.pdfIn PDF document text
    • http://liburnia.pl/userfiles/file/luwumebetafujibizokede.pdfIn PDF document text
    • https://tcremich.lu/files/files/28195798385.pdfIn PDF document text
    • http://dietmoiquangle.com/webroot/img/files/sopozupeliwusupe.pdfIn PDF document text
    • http://raduzhniy.com/wp-content/plugins/formcraft/file-upload/server/content/files/161447fa75ff8d---migudonapazogow.pdfIn PDF document text
    • http://clinical-pain.com/pds/userfiles/files/wokumowo.pdfIn PDF document text
    • https://cancelaria.pl/galeria/file/kaloxijelo.pdfIn PDF document text
    • http://www.jesuseslaroca.org/wp-content/plugins/formcraft/file-upload/server/content/files/161452dda81a55---23429703700.pdfIn PDF document text
    • https://www.highettmetal.com.au/application/third_party/ckfinder/userfiles/files/mipolirabezuj.pdfIn PDF document text
    • http://luberoff.com/userfiles/file/70904728462.pdfIn PDF document text
    • https://anmoul.com/userfiles/file/baporulovimume.pdfIn PDF document text
    • http://mp-journal.com/media/file/24493296619.pdfIn PDF document text
    • https://topclassgardening.nl/images/file/zowezurigijiv.pdfIn PDF document text
    • http://nova-auto.com/upload/wuxek.pdfIn PDF document text
    • http://lesmashclub.com/imgUpload/files/babozanurejufolazis.pdfIn PDF document text
    • http://bezagsecurity.cz/userfiles/buxavesugozuxosume.pdfIn PDF document text
    • http://xn--lv0az70cxar.tw/uploads/files/202109100037498045.pdfIn PDF document text
    • https://study-go.info/wp-content/plugins/super-forms/uploads/php/files/3dc68da460a4fcc98c8dd406d9c89976/fikepumowevu.pdfIn PDF document text
    • http://feedproxy.google.com/~r/MbOu/~3/Z3ufxtS7Wvw/uplcv?utm_term=a+perfect+study+time+tablePDF 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 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_off0000c3cf.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC3CF 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_01_sfnt_off0000dbe1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDBE1 17668 bytes
SHA-256: 4ed60b2b5b38ee21f258370e7661904e518429512d72d5de8afade1d43ea1e45
font_02_sfnt_off000108a5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x108A5 10892 bytes
SHA-256: 7bbf143af5b25c0f687f5d25d23e493cccc0e930ea72d9af34d20abc3afdac14