Malicious PDF — malware analysis report

Static analysis result for SHA-256 71bf2c4582cb84c6…

MALICIOUS

PDF

42.2 KB Created: 2021-02-15 09:25:00 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-05
MD5: a86be41056664c75546b808d3c7ef152 SHA-1: 867bb4902b705af00cb7e130195a59603f70e110 SHA-256: 71bf2c4582cb84c6de4e8fe7e855cc51095b592ae4038dc1dabb5e85f15c710d
144 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF exhibits characteristics of a phishing lure, including an image-only presentation and a clickable action triggering an external URL. Heuristics indicate it's a link farm on disposable hosting, suggesting a malicious intent to redirect users. ClamAV detection and ML classification confirm its malicious nature, likely serving as a delivery mechanism for further threats.

Machine Learning

  • Nyx PDF Classifier malicious score 0.7862

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • Image-only document with action trigger (screenshot lure) medium PDF_IMAGE_LURE
    PDF has 1 image(s), only 0 text block(s), carries a click-outward action, and is only 42 KB — typical shape of a phishing lure where a full-page screenshot hides a clickable button that launches or submits to an attacker URL.
  • 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
  • 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://leonvi.ru/strik?utm_term=big+bang+theory+science+simple+explanation PDF link annotation
    • https://cdn.sqhk.co/fawabanof/Rqvhghi/pokemon_go_plus_target_australia.pdfIn PDF document text
    • http://tumibejum.iblogger.org/netflix_expired_meaning.pdfIn PDF document text
    • http://fipevowes.iblogger.org/18860721067.pdfIn PDF document text
    • http://pimolala.22web.org/hackescher_markt_shopping_guide.pdfIn PDF document text
    • https://cdn.sqhk.co/govazilose/geSgdG6/octopus_plural_australia.pdfIn PDF document text
    • http://guvizaw.22web.org/resigesutewopata.pdfIn PDF document text
    • https://cdn.sqhk.co/kazamepa/3gh52id/66637635302.pdfIn PDF document text
    • http://lerevujoda.iblogger.org/birth_certificate_correction_form_texas.pdfIn PDF document text
    • http://giratas.epizy.com/free_chalk_brush_photoshop.pdfIn PDF document text
    • http://jowatazurusu.epizy.com/gonasavoxir.pdfIn PDF document text
    • http://fupuvafibip.rf.gd/career_opportunities_in_physics.pdfIn PDF document text
    • http://widafasamuj.epizy.com/77281251534.pdfIn PDF document text
    • http://ruludamena.epizy.com/jifalut.pdfIn PDF document text
    • http://buluretemafoxuk.rf.gd/20544567479.pdfIn PDF document text
    • http://pidusuzelaju.epizy.com/47988171163.pdfIn PDF document text
    • http://finubovuputok.epizy.com/good_food_guide_australia_hats.pdfIn PDF document text
    • http://luzeparuzibez.rf.gd/simedafigunesu.pdfIn PDF document text
    • http://mivuturirem.rf.gd/vazomiwasiko.pdfIn PDF document text
    • http://vugikalijuboxo.epizy.com/ecommerce_store_templates_free.pdfIn PDF document text
    • http://mogopubu.epizy.com/christmas_party_invitation_template_photoshop.pdfIn PDF document text
    • http://josapug.epizy.com/33486692883.pdfIn PDF document text
    • http://towilisok.epizy.com/soul_train_awards_2019_performers.pdfIn PDF document text

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