MALICIOUS
136
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF contains numerous embedded links, many of which point to SEO-optimized PDF files, a common tactic for link farms and phishing. The heuristic 'PDF_SEO_LINK_FARM' indicates a large number of external links, and 'PDF_SEO_UTM_REDIRECTOR_LINK' specifically flags a redirector URL, suggesting a malicious intent to redirect users to potentially harmful sites. The ML classifier also strongly indicated maliciousness.
Machine Learning
- Nyx PDF Classifier malicious score 0.9991
Heuristics 5
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Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARMSmall 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.
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Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINKPDF 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.
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External URI info PDF_URIPDF contains an external URL action
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Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTALThe 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.
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Embedded URL info EMBEDDED_URLOne 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://jottigo.ru/strik?utm_term=preposition+song+lyrics+jingle+bells PDF link annotation
- http://good-production18.site/79504476009b1bdy.pdfIn PDF document text
- http://helps-lnstagramcopyrights-about.com/btec_level_3_engineering_unit_6_answers13po9.pdfIn PDF document text
- http://detonic-hypertonie.website/foxit_reader_for_ubuntu_freebxxb8.pdfIn PDF document text
- http://rigoditibalun.mywebcommunity.org/70506210346.pdfIn PDF document text
- http://relax35.ru/pidole39iff.pdfIn PDF document text
- http://zofazosedam.iblogger.org/how_to_turn_casio_watch_alarm_off.pdfIn PDF document text
- http://kulanefimolon.mypressonline.com/book_meditations_by_marcus_aurelius.pdfIn PDF document text
- http://tivoraxureb.22web.org/nuridenef.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- http://doriponesarom.myartsonline.com/charting_oxidation_number_worksheet_answers.pdfIn PDF document text
- https://s3.amazonaws.com/voxipanovigepiv/54257865886.pdfIn PDF document text
- https://s3.amazonaws.com/veraxawewib/bebepibofokew.pdfIn PDF document text
- http://zilowovuv.atwebpages.com/economist_style_guide_2020.pdfIn PDF document text
- https://s3.amazonaws.com/mutirexa/instagram_followers_apk_2019.pdfIn PDF document text
- https://154530d8-637b-49d0-b90a-43bf07a176fb.filesusr.com/ugd/59359a_a26448e36321463cb17cf60bad765bd6.pdf?index=trueIn PDF document text
- https://s3.amazonaws.com/bulozor/present_continuous_tense_worksheet_for_grade_6.pdfIn PDF document text
- http://vuribokuz.epizy.com/tobefozazofugi.pdfIn PDF document text
- https://0a497e50-07dd-462d-832d-d8678f741a8e.filesusr.com/ugd/5f857b_a740bb1c881b4345a385d192b011504e.pdf?index=trueIn PDF document text
- https://s3.amazonaws.com/nefomojuwet/6578180806.pdfIn PDF document text
- http://figavexujofivu.rf.gd/6th_grade_math_slope_worksheets.pdfIn PDF document text
- http://pezedavepajizum.rf.gd/atlas_copco_compressor_manual.pdfIn PDF document text
- https://s3.amazonaws.com/figidireki/causative_verbs_list.pdfIn PDF document text
- https://8eefcaf3-52f5-4123-8be5-b1f0aaeea45e.filesusr.com/ugd/1d3654_6d9bf0a0fd3c40508a658af8afdc695c.pdf?index=trueIn PDF document text
- https://s3.amazonaws.com/mexijegedakol/illness_word_search_worksheet.pdfIn PDF document text
- https://76ed6b59-b034-43ac-b949-e1c08f76e3cb.filesusr.com/ugd/ee6100_0ad5394fdfdd4ba29a492cb9472f61d0.pdf?index=trueIn 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.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000e5ef.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE5EF | 5208 bytes |
SHA-256: f312ed880106147d905a508df02ae298e876ce096785669354626215975ba9e2 |
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font_01_sfnt_off0000f7c6.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF7C6 | 10976 bytes |
SHA-256: eb14a83d791ff1207c232ae2fc79855551eec9307849d4b0611788590d03cb2f |
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