Malicious PDF — malware analysis report

Static analysis result for SHA-256 5d452cdb1aaa2a3d…

MALICIOUS

PDF

62.7 KB Created: 2021-03-15 07:01:32 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-05
MD5: 10c19a3373399a24bc920bb806d7db28 SHA-1: cfdb3f7cbd1f5f5f1bb010972a989ef030b574a0 SHA-256: 5d452cdb1aaa2a3d666b6bd0a78f8ae90a2fd2a64aea8eb61a552f993fd7819c
124 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

The PDF file contains numerous embedded URLs, many pointing to disposable domains, and is flagged by ML classifiers and ClamAV as malicious. The heuristic 'PDF_SEO_DISPOSABLE_LINK_FARM' indicates a pattern of creating numerous links on disposable hosting, suggesting an attempt to manipulate search engine results or distribute malware. The presence of embedded URLs and the overall structure strongly suggest this document is part of a phishing or malware distribution campaign.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8712

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://baarspo.ru/award?keyword=jeff+buckley+hallelujah+sheet+music+pdf PDF link annotation
    • http://lovelid.xyz/pujirusivorenikiribezza82.pdfIn PDF document text
    • http://grantmedica.ru/yard_machines_by_mtd_riding_lawn_mower81nfd.pdfIn PDF document text
    • http://togurebuk.66ghz.com/54887370460.pdfIn PDF document text
    • https://vakogupomuniv.weebly.com/uploads/1/3/4/6/134610568/8301909.pdfIn PDF document text
    • http://souve.me/onn_dvd_player_ona18dp001_codesxiup5.pdfIn PDF document text
    • https://solujasamaro.weebly.com/uploads/1/3/4/6/134695729/3492837.pdfIn PDF document text
    • http://khareedforosh.com/welipavuwowe7wwem.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4480897/normal_60246f156c3d8.pdfIn PDF document text
    • https://lizakefamejoxen.weebly.com/uploads/1/3/1/3/131384135/rebuperam_sijibozel.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4371240/normal_601992120e22f.pdfIn PDF document text
    • http://viewcreditscore.info/yoga_asanas_books_free_download_in_teluguv42ic.pdfIn PDF document text
    • https://nedugapepo.weebly.com/uploads/1/3/4/2/134265444/kututebuzafopi_mewixigavobe_titujetik.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4401994/normal_601689b55e7a9.pdfIn PDF document text
    • http://xariketixagat.mypressonline.com/niv_zondervan_study_bible_premium_leather.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4376098/normal_5fecc0c83914d.pdfIn PDF document text
    • https://vegekevovixo.weebly.com/uploads/1/3/1/4/131437475/bepitepafibolojuve.pdfIn PDF document text
    • http://leledup.mypressonline.com/41037911922.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://nulesuli.epizy.com/34764103716.pdfIn PDF document text
    • https://f84ffea9-2755-49c2-9cb5-47ca8b55fe65.filesusr.com/ugd/0adedf_f019a4e5718d45c39e2cd59be6004a6f.pdf?index=trueIn PDF document text
    • http://wubavon.epizy.com/44398247758.pdfIn PDF document text
    • https://d102a0f2-001f-4998-bb0a-88ac30ac05b5.filesusr.com/ugd/771ea4_ba00514d480f48689693ddab9ea30799.pdf?index=trueIn PDF document text
    • http://xojutavuvexiso.rf.gd/distance_and_displacement_worksheets_high_school.pdfIn PDF document text
    • https://434dcbc4-7bd9-40fe-99bf-e102daebf961.filesusr.com/ugd/07ef24_ac4c1df3bfed4206b2cea890b2f591ec.pdf?index=trueIn PDF document text
    • http://ketabigumowun.atwebpages.com/family_feud_game_template_for_mac.pdfIn PDF document text
    • http://nipelijikiki.onlinewebshop.net/nyc_metro_map_manhattan.pdfIn PDF document text
    • http://nifogegaf.epizy.com/89680722.pdfIn PDF document text
    • http://scripts.sil.org/OFLIn PDF document text

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000dcd6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDCD6 5668 bytes
SHA-256: 325900ab7e885a9a8758c2190c8d54b16197a795c0800783a9664e1e3ba42903

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