Malicious PDF — malware analysis report

Static analysis result for SHA-256 82c15bfe4f8164c6…

MALICIOUS

PDF

77.0 KB Created: 2021-03-14 09:16:02 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-04
MD5: dd14ee8c4cb201c780463577b59c78be SHA-1: 92844945de2feac60a852940b4a2fccd6d8c808a SHA-256: 82c15bfe4f8164c665f1eed6f7ac6037824f7ff2d63bbe1fa0f35c23b81438d7
136 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

The PDF was flagged by multiple heuristics, including ML classification and ClamAV, as malicious and phishing-related. The presence of an SEO redirector link, specifically 'https://jumiwimov.ru/123?utm_term=ifpi+digital+music+report+2011', indicates a phishing attempt disguised as a report to lure users to a malicious site. While no scripts were explicitly extracted, the PDF structure and URL redirection strongly suggest a phishing attack vector.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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 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
  • 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://jumiwimov.ru/123?utm_term=ifpi+digital+music+report+2011 PDF link annotation
    • https://s3.amazonaws.com/purufiz/ingles_babbel_apk_gratis.pdfIn PDF document text
    • https://s3.amazonaws.com/jezaxojipevu/free_landing_page_template_with_contact_form.pdfIn PDF document text
    • http://zathkatow.xyz/libro_de_biologa_1_de_secundaria_2019_contestado5pkw1.pdfIn PDF document text
    • https://s3.amazonaws.com/benuka/expectations_in_relationships_worksheet.pdfIn PDF document text
    • https://s3.amazonaws.com/gumagabu/bilawijimuzinikep.pdfIn PDF document text
    • https://s3.amazonaws.com/pirosisob/tin_foil_boat_experiment_worksheet.pdfIn PDF document text
    • http://onlinetyz.xyz/is_prostitution_legal_in_nevada_usahwe4x.pdfIn PDF document text
    • http://pexulisinipev.sportsontheweb.net/begigo.pdfIn PDF document text
    • http://silkhfig.bid/23743777842s5ozp.pdfIn PDF document text
    • http://lnstagramverifiedsbadgeforms.com/chinese_drama_ostewuk8.pdfIn PDF document text
    • https://s3.amazonaws.com/polexebuj/conceptual_physical_science_textbook.pdfIn PDF document text
    • http://bopolubolef.mywebcommunity.org/52057864722.pdfIn PDF document text
    • http://likedizar.medianewsonline.com/woxinedurul.pdfIn PDF document text
    • http://profapp.pro/97274051822gvwu4.pdfIn PDF document text
    • http://lirinevewafa.mypressonline.com/11114985812.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://uploads.strikinglycdn.com/files/d82166ea-3aaa-4a5e-88be-952bfc1c7122/honda_eu2000i_inverter_generator_for_sale.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/d842a102-07af-4a7e-8560-09efccaa872d/majupijazopuvigar.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/eb128e9b-bd63-45de-b2c6-854569f5be0d/lopi_wood_stove_ratings.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/9e7a8e62-7073-4b59-9694-97eb040c7462/kyocera_universal_print_driver_windows_7.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/5ef84d03-cc15-47bc-9c13-6d5906c77785/vuxuvikitigolum.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://scripts.sil.org/OFLIn PDF document text

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000ebb3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEBB3 5736 bytes
SHA-256: 47dfecfa0d8ae7292643a9f5611a075be44505dcee341a1513152addab7b280b
font_01_sfnt_off0000ff37.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFF37 11644 bytes
SHA-256: 0bb7600bbebbb0801ba3d6ecdd159cfebba568d7d54d4fb119be55de9b237b14

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