Malicious PDF — malware analysis report

Static analysis result for SHA-256 2b4976853ed52587…

MALICIOUS

PDF

87.0 KB Created: 2021-04-07 20:13:31 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-04
MD5: fa6decfb551a04d0e6cba3042b4dfbe6 SHA-1: e225c5dba1ce1a7d96e06c5ee232de663746e71a SHA-256: 2b4976853ed52587ec77110016c74b49afd3edd6953d25e843b8a66b361867f7
196 Risk Score

Malware Insights

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

This PDF file was flagged as malicious by ClamAV and an ML classifier. It contains numerous external links, including a primary URL that appears to be an SEO redirector designed to lure users with search terms like 'bed bath and beyond ironing board cover'. The PDF's structure suggests it's part of a link farm, aiming to drive traffic to potentially malicious sites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

Heuristics 6

  • 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 contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • 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://maypoin.ru/wix?keyword=bed+bath+and+beyond+ironing+board+cover PDF link annotation
    • https://fusewire.weebly.com/uploads/1/3/0/7/130776481/5b681ae9d0191d.pdfIn PDF document text
    • https://s3.amazonaws.com/ziwuvijevo/jefedi.pdfIn PDF document text
    • http://obuv-kozha.ru/the_mortal_instruments_city_of_bones_2013_dual_audio_hindi_720pxjqf5.pdfIn PDF document text
    • https://s3.amazonaws.com/pewebopufupe/degekuronapodexagorogogon.pdfIn PDF document text
    • https://s3.amazonaws.com/xopugup/38979564330.pdfIn PDF document text
    • https://s3.amazonaws.com/xufaxoferugod/84819058649.pdfIn PDF document text
    • https://duvirimak.weebly.com/uploads/1/3/4/6/134603536/rofedakidoto_nudiwiji_bobomajuwusenig_batudovuviv.pdfIn PDF document text
    • http://kenugizi.getenjoyment.net/what_city_is_babylon_today.pdfIn PDF document text
    • https://s3.amazonaws.com/lekelepowo/67573307517.pdfIn PDF document text
    • https://s3.amazonaws.com/woxewiwupir/fantastic_beasts_and_where_to_find_them_2_wikipedia.pdfIn PDF document text
    • http://idealslimitalia-oficial.site/murder_mystery_murder_mystery_codes473bf.pdfIn PDF document text
    • http://vorecan.space/fabezemitzdhgr.pdfIn PDF document text
    • http://buylettersonline.com/kuta_software_infinite_algebra_2_radicals_and_rational_exponents_answers3qjv9.pdfIn PDF document text
    • http://kedugobepuged.mywebcommunity.org/la_boite_a_merveille_complet.pdfIn PDF document text
    • https://s3.amazonaws.com/gofilafixu/zemexifawigafuwuj.pdfIn PDF document text
    • https://s3.amazonaws.com/girilifawuxi/midumefufipipemizul.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • http://teropisarazo.myartsonline.com/tibebe.pdfIn PDF document text
    • http://fadudenomo.onlinewebshop.net/beanie_pattern.pdfIn PDF document text
    • http://zodejewab.epizy.com/vikram_aishwarya_rai_song.pdfIn PDF document text
    • http://fenulujexita.epizy.com/evenflo_sonus_65_convertible_car_seat_installation.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
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000f27f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF27F 5128 bytes
SHA-256: 14176c8bcf9261095409b05bd1f6862355dead5c07338b84162cc428cee62cf4
font_01_sfnt_off000103f0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x103F0 11372 bytes
SHA-256: 180733af6472b6a658ad023b1d4bd40ccd3b8d52cb0d592c6396428f963d9710
font_02_sfnt_off00012acf.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12ACF 16232 bytes
SHA-256: ac5d9198e9e5788e2012a92f79ae3d93b0172fa872ff4df9b6836d0aaa1540d8
font_03_sfnt_off00014028.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x14028 4324 bytes
SHA-256: a542ec26cea93e049a2e27cd59b1347dd9bbdea13775fd7b822b3c2b3136116f