Malicious PDF — malware analysis report

Static analysis result for SHA-256 477f03caa33b0faf…

MALICIOUS

PDF

69.5 KB Created: 2021-02-25 07:33:46 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-05
MD5: 23e62411014841ee8825c05884140d1a SHA-1: 1ddd49b7136d3656551559745fd4f0a7add97420 SHA-256: 477f03caa33b0faf75fdee6d057b69f1e27e4fe14c6a2db913cdac5184342cd6
134 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF file was flagged by multiple heuristics, including ML classification and ClamAV, indicating malicious intent. It contains an embedded URI and a redirector link that appears to be part of a phishing lure, specifically mentioning 'free-download phishing'. The document body, though heavily obfuscated, contains text related to product pricing, reinforcing the lure. No scripts were extracted, but the presence of external links suggests a potential download or redirection to a malicious site.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9338

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
  • Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINK
    PDF embeds an image with little or no body text and a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the 'free ebook / solution-manual / document download' phishing family that ranks for natural-language search queries and routes the user into a payload/redirect chain. The PDF carries no exploit; the risk is the linked destination. Flagged structurally (image lure + SEO redirector) so it does not depend on a ClamAV/ML signature, and regardless of how many filler text pages the lure carries.
  • 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://jacksth.ru/award?keyword=hp+probook+4530s+battery+price+in+bangladesh PDF link annotation
    • http://hookup755.fun/33475277921bl6gr.pdfIn PDF document text
    • http://money-team.site/application_of_amylase_in_food_industrylgcsv.pdfIn PDF document text
    • http://tipofeliluget.medianewsonline.com/75290449433.pdfIn PDF document text
    • http://zobotalemogi.sportsontheweb.net/how_to_adjust_throttle_on_pocket_bike.pdfIn PDF document text
    • http://ubsvp.com/dewalt_pressure_washer_4200_psi_hose58sb8.pdfIn PDF document text
    • http://lumobumekola.getenjoyment.net/should_internet_be_capitalized.pdfIn PDF document text
    • http://wivaserana.mywebcommunity.org/lalanogojaxavabizegutep.pdfIn PDF document text
    • http://e-devletodeme.net/sowelobufekiperizizagidaf6477.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/sefepugolupalax/brand_guidelines_logo_font.pdfIn PDF document text
    • https://s3.amazonaws.com/ruzumeb/75742467932.pdfIn PDF document text
    • http://medexode.atwebpages.com/camping_merit_badge_requirements_bsa.pdfIn PDF document text
    • http://lumosaneja.onlinewebshop.net/is_there_a_winning_strategy_for_roulette.pdfIn PDF document text
    • http://zujuxeropide.rf.gd/11353492893.pdfIn PDF document text
    • https://s3.amazonaws.com/gewuwasi/the_good_witch_season_4_episode_guide.pdfIn PDF document text
    • http://zutugidod.onlinewebshop.net/ielts_writing_answer_sheet_2020.pdfIn PDF document text
    • https://s3.amazonaws.com/visagogijulep/honeywell_wifi_thermostat_rth6580wf_connection_failure.pdfIn PDF document text
    • http://tososite.onlinewebshop.net/past_simple_affirmative_exercises_perfect_english_grammar.pdfIn PDF document text
    • http://kofujuluzode.epizy.com/56851261142.pdfIn PDF document text
    • http://rujidafedisezu.atwebpages.com/solucionario_algebra_lineal_grossman_5_edicion_espaol_gratis.pdfIn PDF document text
    • http://suxanovovogemi.rf.gd/59762889450.pdfIn PDF document text
    • https://s3.amazonaws.com/libusamagowuvo/wijazokowowisa.pdfIn PDF document text
    • http://scripts.sil.org/OFLIn PDF document text
    • http://www.geocities.com/mitra_anirban/hobbies.htmGNUIn PDF document text
    • http://www.gnu.org/copyleft/gpl.htmRegularIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000cd7a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCD7A 6120 bytes
SHA-256: 04e30343544c0c0095a3a3f7ac6e0b6f6bf2301d411205d66be89ba841c6df35
font_01_sfnt_off0000e249.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE249 4528 bytes
SHA-256: 4fb2ba4610e74dca0dcca51f289ab5d204381b11e448cdbf43228f69e5248bac

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