Malicious PDF — malware analysis report

Static analysis result for SHA-256 191e1b2938e1669a…

MALICIOUS

PDF

130.0 KB Created: 2022-03-03 08:05:25 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-22
MD5: 344abff46e97f2adfc55901852f4c6cc SHA-1: d23e633451778625ad906026fb0fd8aa92b3db69 SHA-256: 191e1b2938e1669a20c1c15994cf8d92204bb3dc9f7e38b02d05a61eb2b841c3
164 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9682

Heuristics 7

  • 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.
  • Embedded JS stream low PDF_JS
    PDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
  • 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://lovig.co.za/XSRYdR1H?utm_term=endnote+libguide+monash PDF link annotation
    • http://dagmare.de/userfiles/file/binadilidaruvamopiluvo.pdfIn PDF document text
    • http://pjj.aoosung.com/upload/editor/file/vinulirevododowot.pdfIn PDF document text
    • https://eltechma.com/zdjecia/fck/file/xomuzudafekumeraj.pdfIn PDF document text
    • http://bhk-aindling.com/userfiles/files/nogazanogawapugulukalalon.pdfIn PDF document text
    • http://antwerp-rentals.com/wp-content/plugins/formcraft/file-upload/server/content/files/162172fa003789---658092758.pdfIn PDF document text
    • https://www.lindopoint.it/wp-content/plugins/super-forms/uploads/php/files/34095f94cd0798a2ca9b9c49bd16fefc/votibigoz.pdfIn PDF document text
    • http://ysenb.kr/board/file/editor/file/zupitatedagubem.pdfIn PDF document text
    • https://www.pkkmaluku.org/berkas/plugin/ckeditor/kcfinder/upload/files/40565549112.pdfIn PDF document text
    • https://dezsredstvompx.ru/wp-content/plugins/super-forms/uploads/php/files/6cf1e5b8c53831acd94a6d6d2b5585d5/dezararajomomukuj.pdfIn PDF document text
    • https://bkr.jetdesign.pl/files/files/32057944734.pdfIn PDF document text
    • https://rimi.sk/userfiles/file/61529946236.pdfIn PDF document text
    • http://www.zav-mito.si/wp-content/plugins/formcraft/file-upload/server/content/files/1620ce7b4ce4bc---kawefunifija.pdfIn PDF document text
    • http://www.majoriscambio.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/16210f090c31fc---wasiviliduvufuwo.pdfIn PDF document text
    • http://lemarsk.sk/kcfinder/upload/files/kupex.pdfIn PDF document text
    • http://cidadania23pr.org.br/ckeditor/kcfinder/upload/files/64456041494.pdfIn PDF document text
    • https://e-s-c.fr/lib/ckeditor/kcfinder/upload/files/98576652802.pdfIn PDF document text
    • https://siemens-rozetki.ru/kcfinder/upload/files/43918036307.pdfIn PDF document text
    • http://sumtinathholidays.com/admin/uploadfiles/file/depisifugeroteximereripej.pdfIn PDF document text
    • http://www.icf-plant.com/files/file/86520450364.pdfIn PDF document text
    • http://www.restorationservice.ca/wp-content/plugins/formcraft/file-upload/server/content/files/1620c989560300---40086450195.pdfIn PDF document text
    • https://kvzriu.org/images/file/sikatoteludiguzobe.pdfIn PDF document text
    • http://ukrainski-rosyjski.pl/userfiles/file/dapeboxekadagogonug.pdfIn PDF document text
    • https://www.afsti.org/admin/kcfinder/upload/files/xibugawisi.pdfIn PDF document text
    • http://onlineticketreview.com/images/file/doxenebifenef.pdfIn PDF document text
    • http://trufeel.com/ckeditor/ckfinder/uploadfile/files/87083183798.pdfIn PDF document text
    • http://restavratorstvo.com/ckfinder/userfiles/files/xisajigagipipidopezoji.pdfIn PDF document text
    • https://codefon.hu/js/ckfinder/userfiles/files/vakifosegatarakegiro.pdfIn PDF document text
    • https://www.fsps.co.th/kcfinder/upload/files/vezebemuwovakige.pdfIn PDF document text
    • http://daiichilogistics.com/uploads/news_file/zosusilukelexisexuvuwegi.pdfIn PDF document text
    • http://bcf-plv.com/kcfinder/upload/files/tafilotuxizegabekev.pdfIn PDF document text
    • https://www.giromarilia.com.br/plugins/kcfinder/upload/files/14439354737.pdfIn PDF document text
    • http://barcodeegypt.com/public/kcfinder/upload/files/webegumadizidijo.pdfIn PDF document text
    • http://philippetardieu.com/kcfinder/upload/files/58419342971.pdfIn PDF document text
    • https://www.adamtraveljordan-ru.com/mypanel/includes/ckeditor/kcfinder/upload/files/vewumijaroxirurolobuwida.pdfIn PDF document text
    • https://myclubowners.travelenvogue.com/userfiles/files/vajoxigenazikaxuratozijo.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_off00019a7a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x19A7A 10816 bytes
SHA-256: f78744a83c41e24fe030cad5f02db02f2b2c27d9dd256230fc6544bb6e5589cc
font_01_sfnt_off0001b2f2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1B2F2 17604 bytes
SHA-256: 04f480d9147583e1ae1064a5f9cece5480756365d436b0b9206959005a45dc7d
font_02_sfnt_off0001e118.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1E118 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9

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