Malicious PDF — malware analysis report

Static analysis result for SHA-256 632ee92966273e03…

MALICIOUS

PDF

70.6 KB Created: 2021-03-19 16:09:12 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 1b6aaadf4507069302073175f05c0751 SHA-1: b77991c4f3413d4ed625afd8af5a64e6f4e7863d SHA-256: 632ee92966273e030249ba545237e0814fc7b7d1c7f094d9329932f1c00db21a
66 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

The PDF file contains a high number of embedded URLs, many pointing to disposable hosting services, indicating a link farm or redirection scheme. The ML classifier strongly flagged this PDF as malicious, and the presence of external URIs suggests an attempt to direct the user to potentially harmful content. While no scripts were extracted, the overall structure and heuristic firings point towards a malicious document designed for user redirection.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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://nipisod.ru/strik?utm_term=craftsman+edger+replacement+parts PDF link annotation
    • https://wejanorop.weebly.com/uploads/1/3/2/3/132303338/9823492.pdfIn PDF document text
    • https://demegokesikamo.weebly.com/uploads/1/3/1/4/131454383/3857532.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4425933/normal_601651b857a47.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4454971/normal_5ffffcda07118.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4461770/normal_6019947da3bc3.pdfIn PDF document text
    • http://circus.market/will_there_be_more_michael_vey_books4h8fr.pdfIn PDF document text
    • https://jedopebo.weebly.com/uploads/1/3/4/8/134889916/gokelagibape.pdfIn PDF document text
    • http://watomidipokaki.22web.org/the_monkeys_paw_story_characters.pdfIn PDF document text
    • http://copyrightviolationcenters.com/theory_of_moral_sentiments_sparknotesam5vh.pdfIn PDF document text
    • http://lestyprin.online/sentry_safe_key_and_combinationc59zn.pdfIn PDF document text
    • http://lnstagram-blue-badge-form.com/nizixifuwenibuzoxemotavipakxgf.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4456376/normal_5fe6036debb9d.pdfIn PDF document text
    • http://wopebexe.66ghz.com/9653420019.pdfIn PDF document text
    • http://sijetop.22web.org/82739823286.pdfIn PDF document text
    • http://otshelnik.net/what_is_an_example_of_socratic_irony0xdj7.pdfIn PDF document text
    • http://kostlike.site/mackie_mix12fx_12_channel_mixer8qpys.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4468261/normal_601cda33ae8d9.pdfIn PDF document text
    • http://ruguxod.iblogger.org/taxamod.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://goxobiwab.rf.gd/13503580156.pdfIn PDF document text
    • http://welurolakis.epizy.com/carpophilus_hemipterus.pdfIn PDF document text
    • http://venasipinizi.rf.gd/a_night_to_regret_movie.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_off0000d7ef.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD7EF 5380 bytes
SHA-256: cdf43df3250463648a03a5185c4c2c7b79bfad88eb84045df30e9551d579ef7f
font_01_sfnt_off0000ea23.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEA23 10192 bytes
SHA-256: 7a0d18dbca95c66170191606c723fccd487859a5d26251c65649a11dea547a4d

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