Malicious PDF — malware analysis report

Static analysis result for SHA-256 0b32ccd4fdaf71b1…

MALICIOUS

PDF

79.8 KB Created: 2021-04-16 08:45:58 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 000edca77b3f76e502a7df9d8fe6085b SHA-1: 8770dfeeb81a4cf4796fd3cb033722d056e6d42d SHA-256: 0b32ccd4fdaf71b155a1aaa8abc168a40292e7004e0fb7ba8d424818480097c3
66 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

The PDF contains numerous embedded URLs, many pointing to disposable domains and link farms, indicating a malicious intent to manipulate search engine results or distribute further malicious content. The ML classifier strongly flagged this PDF as malicious. While no scripts were explicitly extracted, the PDF structure and embedded URIs suggest it's designed to redirect users to potentially harmful sites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9991

Heuristics 4

  • 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://ponafet.ru/strik?utm_term=how+do+sea+lions+protect+themselves+from+predators PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4421640/normal_6025c0ffacb14.pdfIn PDF document text
    • http://hellochildren.online/xopugulewuh2rw.pdfIn PDF document text
    • https://cdn.sqhk.co/rovukupovumo/jjBHgc5/corpse_party_blood_drive_en_download.pdfIn PDF document text
    • https://komiwafaka.weebly.com/uploads/1/3/2/7/132712661/pebaxebupo.pdfIn PDF document text
    • http://ver-alex.website/memphis_nail_salons_open_on_sunday8onl1.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4404124/normal_6065b1b8be116.pdfIn PDF document text
    • http://italywow.pro/mounam_pesiyadhe_movie_hd_720p_downloadvrrtr.pdfIn PDF document text
    • http://meine-gebuhrenfrei.com/what_temperature_should_a_freezer_be_ukh9pwy.pdfIn PDF document text
    • https://dafizigupiteg.weebly.com/uploads/1/3/4/4/134492389/5b6297512f86b5f.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4382189/normal_5fe32ea25e37d.pdfIn PDF document text
    • https://cdn.sqhk.co/bujasugawo/ihihbjW/digestive_tract_anatomy_order.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4365552/normal_6046eb9e7fced.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4423696/normal_606add312ed35.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4490519/normal_5fe46adf284a3.pdfIn PDF document text
    • https://zitadinenere.weebly.com/uploads/1/3/1/8/131871439/e3de0e44e1f78f.pdfIn PDF document text
    • https://cdn.sqhk.co/guranotup/fbMgN05/13316507331.pdfIn PDF document text
    • http://zapegerebipe.22web.org/suxofoxefewerefevovekuw.pdfIn PDF document text
    • https://cdn.sqhk.co/tubadaluzafu/PggkVv2/neon_piano_magic_dream_tiles_4_descargar.pdfIn PDF document text
    • https://mebifexet.weebly.com/uploads/1/3/1/3/131381374/ledezidavewos.pdfIn PDF document text
    • http://coolmag.biz/ivara_build_2019z8pn1.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4370270/normal_604fc06b08674.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://wuwepapose.epizy.com/bet_informal_definition.pdfIn PDF document text
    • http://keximatefabuzi.rf.gd/lukinaniruxidajokumi.pdfIn PDF document text
    • http://konajif.epizy.com/52322665349.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

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000f8cd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF8CD 5508 bytes
SHA-256: 4c19faf7bc662237f08c639e30780d73c81c90fff0fa953be454bdffbf6777c2
font_01_sfnt_off00010b73.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10B73 10392 bytes
SHA-256: f99404f285b28764f6ef27969d58ed10deba2ce1a05751a15695af730f33a8ad

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