Malicious PDF — malware analysis report

Static analysis result for SHA-256 042d52065b05905c…

MALICIOUS

PDF

172.5 KB Created: 2021-03-17 00:46:56 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-04
MD5: a769e9cd4da0a40ecb5b7570185dba87 SHA-1: de22f33e9b2a081fbc74905853532915bf0fc345 SHA-256: 042d52065b05905c0e43fbe1400772a1087efa91e05093f3fc426a923f051d95
66 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

The PDF document contains numerous embedded URLs, many pointing to disposable hosting and forming a link farm, suggesting a SEO poisoning or traffic redirection scheme. The ML classifier strongly indicated maliciousness. While no scripts were explicitly extracted, the PDF structure and embedded URIs are indicative of a malicious document designed to redirect users to potentially harmful content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

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/wix?keyword=justice+in+the+old+testament+crossword PDF link annotation
    • https://wujawosekeg.weebly.com/uploads/1/3/4/7/134712458/7846677.pdfIn PDF document text
    • https://puvawenoma.weebly.com/uploads/1/3/3/9/133999826/91e06.pdfIn PDF document text
    • https://puzugisebo.weebly.com/uploads/1/3/1/4/131438758/makenukoligeja.pdfIn PDF document text
    • https://nafuxiba.weebly.com/uploads/1/3/4/0/134097784/wekulu_zipiwitaviti_duxomagezumawad.pdfIn PDF document text
    • http://sun-italy.space/dante_bozanstvena_komedijayowt0.pdfIn PDF document text
    • http://nizagose.66ghz.com/vezipikebowodivak.pdfIn PDF document text
    • https://gaburidukir.weebly.com/uploads/1/3/4/4/134463400/xuvitemop_baxokomu_jixubapinulo_welogariwa.pdfIn PDF document text
    • https://vaxejoxumede.weebly.com/uploads/1/3/5/3/135346770/zodurevowewotige.pdfIn PDF document text
    • https://vesasasafej.weebly.com/uploads/1/3/4/7/134758359/jokotomoj.pdfIn PDF document text
    • https://delidanazej.weebly.com/uploads/1/3/2/6/132681463/xidukatirataz.pdfIn PDF document text
    • http://normal-id.com/the_four_fundamental_concepts_of_psychoanalysisjcz6k.pdfIn PDF document text
    • https://vemugalibi.weebly.com/uploads/1/3/4/4/134484787/777df4f9ebeacc2.pdfIn PDF document text
    • http://xtreme-sport.ru/gordon_ramsay_100_recipes_to_stake_your_life_on_downloadxs4tm.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://novoboninixeme.epizy.com/pakistan_automobile_industry_analysis_2020.pdfIn PDF document text
    • http://wasokutuv.epizy.com/bubbly_baby_song_masstamilan.pdfIn PDF document text
    • http://detosiko.rf.gd/22493338844.pdfIn PDF document text
    • http://soregoboredu.rf.gd/what_is_a_quantitative_correlational_study.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/0d5cb5c9-1f84-4ee0-9d10-fc71d6092c02/helter_skelter_book_amazon.pdfIn PDF document text
    • http://muwumatenenuli.rf.gd/act_practice_test_10_answers.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/3f143462-6137-411f-8cfe-a97f4c1e646f/how_to_fold_graco_fastaction_stroller.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_off00026b1f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x26B1F 5260 bytes
SHA-256: 2198d66f6c793908bf6feda63b47f0191e87b618e7ba0ebc22cda1d30e8189a1
font_01_sfnt_off00027cde.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x27CDE 11452 bytes
SHA-256: a5e81b084cbbce227e7b0691bf1b41122906346b3f554163b839c7ea61332759

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