Malicious PDF — malware analysis report

Static analysis result for SHA-256 f36cb1799fcab896…

MALICIOUS

PDF

54.6 KB Created: 2021-02-26 14:46:51 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-22
MD5: e318037a883ca17d2479bef37c94b26d SHA-1: 47e7baa022f1a80d325e120fb4bf74911eab0c8c SHA-256: f36cb1799fcab8966a56ab53f321e18be0c181f01b59866294dea285a8497533
124 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple embedded URLs, including one that appears to be a redirector for a phishing or malware distribution campaign. The ML classifier and ClamAV detection strongly indicate malicious intent. The document body, though heavily obfuscated, suggests a lure related to appliance usage, which is a common tactic for phishing.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9901

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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://gimoguvi.ru/strik?utm_term=how+to+use+a+blomberg+washing+machine PDF link annotation
    • http://tifizifojaf.iblogger.org/63133346803.pdfIn PDF document text
    • https://cdn.sqhk.co/kojariwirip/iffpjhh/carson_city_hotels_with_pool.pdfIn PDF document text
    • http://vowujebotoza.mywebcommunity.org/home_warranty_wont_replace_furnace.pdfIn PDF document text
    • http://wugupomovupa.sportsontheweb.net/how_to_write_an_essay_for_high_school_application.pdfIn PDF document text
    • http://kersita.fun/tisirivagonavokolosotaxwfm7o.pdfIn PDF document text
    • http://lixodamevurobar.mygamesonline.org/namijoxi.pdfIn PDF document text
    • http://believes.space/95562319666flu67.pdfIn PDF document text
    • https://cdn.sqhk.co/xakurusuk/o4Riasr/bozufagirudasamobige.pdfIn PDF document text
    • http://datingdate.site/coal_asia_holdings_inc_annual_reportfm94s.pdfIn PDF document text
    • https://cdn.sqhk.co/novujarogoga/1yggid8/one_deck_dungeon_pc_review.pdfIn PDF document text
    • https://cdn.sqhk.co/pamavunawi/MaZzhft/shelter_insurance_claims_reviews.pdfIn PDF document text
    • https://cdn.sqhk.co/zasemewiti/jbn0Pie/83927398414.pdfIn PDF document text
    • http://ersoil.fun/vulaxonaporiderimoxaoqy5x.pdfIn PDF document text
    • http://gigapexolazet.rf.gd/gojutewajuzew.pdfIn PDF document text
    • http://wotidupodugi.myartsonline.com/zenaxoligekusa.pdfIn PDF document text
    • http://guxajez.rf.gd/zabivuvu.pdfIn PDF document text
    • http://zalowakudedakov.rf.gd/amazing_grace_trumpet_sheet_music_easy.pdfIn PDF document text

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