Malicious PDF — malware analysis report

Static analysis result for SHA-256 4fcedf314636a9cd…

MALICIOUS

PDF

76.2 KB Created: 2021-03-22 01:46:00 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-04
MD5: b0fb81cd6c23cbf11310202e85581689 SHA-1: b96cd9a402233ae408f0d0ffa58765d534e6579d SHA-256: 4fcedf314636a9cd370bbf09406d126fdd33b5a35be9798a5eac33bb0fa26e24
126 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

The PDF file was flagged by ML classifiers and ClamAV as malicious, specifically as a phishing trojan. It contains numerous links to disposable domains, suggesting an attempt to redirect users to malicious content. The document body, though heavily obfuscated, appears to be a lure related to a historical summary, likely to trick users into clicking the embedded links.

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
  • 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
  • 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://pelibifir.ru/strik?utm_term=what+to+a+slave+is+the+fourth+of+july+summary PDF link annotation
    • http://tokiridevifo.medianewsonline.com/awakening_the_heroes_within.pdfIn PDF document text
    • http://juzufezike.mygamesonline.org/kisumojebinepep.pdfIn PDF document text
    • http://baffer-shop.space/how_to_write_a_cover_letter_internal_positiony1vy8.pdfIn PDF document text
    • http://silekutum.medianewsonline.com/ascii_table_256.pdfIn PDF document text
    • http://tixshopclub.fun/22554518050jir7.pdfIn PDF document text
    • http://xadexawufomovi.sportsontheweb.net/92712362668.pdfIn PDF document text
    • http://vedibekupuviru.iblogger.org/pawapojurovoroja.pdfIn PDF document text
    • http://vivekawiga.sportsontheweb.net/how_do_i_set_up_my_brother_printer_to_scan_to_my_mac.pdfIn PDF document text
    • http://myluckybet.xyz/bapujulaark5e.pdfIn PDF document text
    • http://xaraxag.mypressonline.com/94980773191.pdfIn PDF document text
    • http://lojapidabud.mypressonline.com/war_room_book_author.pdfIn PDF document text
    • http://jekeluxuto.mywebcommunity.org/25112957299.pdfIn PDF document text
    • http://mogafowamid.22web.org/29053310778.pdfIn PDF document text
    • http://vomamafawib.scienceontheweb.net/algebraic_expressions_grade_8.pdfIn PDF document text
    • http://vudifabofugejij.medianewsonline.com/90323511748.pdfIn PDF document text
    • http://suwadebizon.mywebcommunity.org/what_do_you_mean_by_kinematics_and_kinetics.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/da00b1a4-2d7d-47c0-8ebd-e39e607da88f/how_to_play_the_board_game.pdfIn PDF document text
    • http://lenegimuni.epizy.com/16011101167.pdfIn PDF document text
    • http://kopuperoki.epizy.com/the_unabomber_manifesto_review.pdfIn PDF document text
    • http://votaveliratelom.epizy.com/disney_intro_piano_sheet_music.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/26467a53-ee53-485f-a605-ad90725df3e5/jijilu.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_off0000eaf7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEAF7 5260 bytes
SHA-256: 28644f294cf64b88f14f090f90c71b36996fbea5629e050ce564e65ecb318a1e
font_01_sfnt_off0000fcc8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFCC8 10736 bytes
SHA-256: 851263c8e728fad0a53ee8cf266c541abc3f26bcc69ad860f13217e303a8989e

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