MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
The PDF file contains numerous embedded links, with the primary link directing to a known malicious redirector. The document body, though partially obfuscated, contains text related to disabling Android app updates, suggesting a social engineering lure. The ML classifier strongly flagged this PDF as malicious, and the presence of a redirector URL indicates an attempt to lead the user to a malicious site.
Machine Learning
- Nyx PDF Classifier malicious score 1.0000
Heuristics 5
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PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINKPDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
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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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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://ttraff.cc/pify?keyword=disabilitare+aggiornamenti+automatici+app+android In PDF document text
- http://rexeji.purduebap.org/uploads/1/3/2/8/132816066/93da0485.pdfIn PDF document text
- http://files.kmid.com.au/uploads/1/3/1/8/131858592/bolejazaner_moxipebesati_fikejubibisaje_pexufigefujo.pdfIn PDF document text
- http://files.lindyhop.gr/uploads/1/3/1/3/131383318/vujifalawa.pdfIn PDF document text
- http://valutu.keriduncan.com/uploads/1/3/2/6/132696323/nikuvapa-rikovela.pdfIn PDF document text
- http://nunopex.traversebaygroup.com/uploads/1/3/2/6/132696398/c3dff838ce53.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/9118/9157/files/23760531869.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0436/7400/9753/files/anabolisme_protein.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/5949/4560/files/40693588070.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0439/8252/0478/files/calculations_in_chemistry_dahm_2nd_edition.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/9812/8036/files/50045808580.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0436/8036/6745/files/83700081576.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0451/9854/0949/files/physical_science_college_book.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/1139/2167/files/calculus_1_questions_and_answers.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/0206/1215/files/bitsat_2020_question_paper_with_solution_download.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/6770/3450/files/naruto_anime_mod_1._12._2.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/0622/9654/files/cogitamus_bruno_latour.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/0204/3288/files/17169239501.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/3641/7953/files/fapena.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/4841/8973/files/reformas_borbonicas_administrativas.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.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off000065ba.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x65BA | 5532 bytes |
SHA-256: f1f5ab530ca26874c4a5a084b6941da6fa9d06081be6464aae1ff5dbe78e6058 |
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font_01_sfnt_off00007865.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7865 | 9936 bytes |
SHA-256: 3f9c87a15e9f7948923d63526392666c9abb88b903b03af42a865aa299ff0f37 |
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