Malicious PDF — malware analysis report

Static analysis result for SHA-256 62491ceef960ec3c…

MALICIOUS

PDF

75.0 KB Created: 2021-07-26 00:46:42 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-05-29
MD5: 08473f3a66b02d1a3f0cff04a3dc9dbf SHA-1: cff6ac712789f04fd7d87d67518b0ac691ff8ab4 SHA-256: 62491ceef960ec3cf429baed888feacef03043aa869222af276948c34646882c
164 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9985

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 http://www.findvoters.com/userfiles/file/64873731588.pdf In PDF document text
    • https://www.elementstraining.co.uk/wp-content/plugins/super-forms/uploads/php/files/7f50lpja8sbcqt93429apv16tk/funezekijaroxifazave.pdfIn PDF document text
    • https://jaurrieta.net/USERFILES_JAURRIETA/files/jolusajiganefewe.pdfIn PDF document text
    • http://cephedanismani.com/images/pages/file/76851881303.pdfIn PDF document text
    • https://vmkstroi.ru/wp-content/plugins/super-forms/uploads/php/files/7396943b5c89e038466d9fe9cfbbf5ac/97965507090.pdfIn PDF document text
    • https://lawtutors.co.uk/js/ckfinder/userfiles/files/57720553443.pdfIn PDF document text
    • http://kondicionery-lubertsy.ru/upload_picture/file/patevonerif.pdfIn PDF document text
    • https://arerp.kr/data/file///bedozefojunibetezopokuza.pdfIn PDF document text
    • http://ildongwire.com/userfiles/file/jidixadafidegazuluvan.pdfIn PDF document text
    • http://innotec-industrie.be/userfiles/file/33415958343.pdfIn PDF document text
    • https://member-amz-seller-system.de/wp-content/plugins/super-forms/uploads/php/files/f340c5826102ffd49e3f8229d6cd6980/49392586439.pdfIn PDF document text
    • https://karapinarinsaat.net/userfiles/upload/file/34231232796.pdfIn PDF document text
    • https://digiconelectronics.com/media/9599460732.pdfIn PDF document text
    • http://xn--90ad5ackt1d.xn--p1ai/wp-content/plugins/super-forms/uploads/php/files/454f39a214115b53388dea1ec3ca386b/54282081290.pdfIn PDF document text
    • https://hohsingfiber.com/ufiles/files/rosovejisuwumumesesowili.pdfIn PDF document text
    • http://makesomenoise.hu/upload/file/17270236986.pdfIn PDF document text
    • http://photo-preiss.com/upload_files/files/disunijezipiritom.pdfIn PDF document text
    • https://www.hausbootgeiseltalsee.de/wp-content/plugins/super-forms/uploads/php/files/j7mpbegev5ip0u4in02cbk5h3e/kagudivomifegiwoze.pdfIn PDF document text
    • http://pavcargo.ru/wp-content/plugins/super-forms/uploads/php/files/a027580a14d950d1152f084f2b9dff2e/xatokodovukulusiwev.pdfIn PDF document text
    • http://epicridesnepal.com/files/32808348213.pdfIn PDF document text
    • http://www.cafeinca.com/img/public/contenido/file/vusikaxagigibuzoxib.pdfIn PDF document text
    • https://fmpride.com/wp-content/plugins/super-forms/uploads/php/files/3d73adaf3c3bd2a2941ccd10732682d4/gixopovimedobifofizi.pdfIn PDF document text
    • https://netcsemege.hu/ckfinder/userfiles/files/62221400478.pdfIn PDF document text
    • https://smoothnomad.com/wp-content/plugins/super-forms/uploads/php/files/p473si3df1md3nvhr36sunqocb/78870365432.pdfIn PDF document text
    • https://feedproxy.google.com/~r/skout/mBVl/~3/PmAiG5ZyT-k/uplcv?utm_term=molecular+compounds+worksheet+keyPDF 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_off0000c1ff.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC1FF 11072 bytes
SHA-256: bdafba0458df0bcee59157ec587493edc378d6f2f20c127a5c04fd7190a6691e
font_01_sfnt_off0000dbbf.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDBBF 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_02_sfnt_off0000f3d1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF3D1 16088 bytes
SHA-256: 294357b51d7180cdc83b260245616e56841a221f809abc78ded92cd170409c2f