MALICIOUS
154
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF contains a link farm with numerous embedded URLs, including a critical finding of a link to known malicious redirector infrastructure. The document body text and embedded URLs suggest a lure to download software, specifically mentioning 'acrobat reader pdf files free download', which is a common tactic for distributing malware. The ML classifier strongly flagged this PDF as malicious, indicating a high likelihood of malicious intent.
Machine Learning
- Nyx PDF Classifier malicious score 1.0000
Heuristics 4
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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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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.ru/pify?keyword=acrobat+reader+pdf+files+free+download
- http://files.inspiredartexhibition.com/uploads/1/3/1/4/131437330/ruzulebekixonipis.pdf
- http://files.heritagepumps.com/uploads/1/3/1/3/131397973/c0f0be5edb.pdf
- http://files.chest-messages.com/uploads/1/3/1/4/131482931/70ce8.pdf
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- https://cdn.shopify.com/s/files/1/0437/2329/2822/files/56974915912.pdf
- https://cdn.shopify.com/s/files/1/0431/2937/2832/files/zidukudopigol.pdf
- https://cdn.shopify.com/s/files/1/0431/5856/9128/files/mubavixadobav.pdf
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/lojuxefututa.pdf
- https://cdn.shopify.com/s/files/1/0433/3499/2025/files/apache_hadoop_ecosystem.pdf
- https://cdn.shopify.com/s/files/1/0437/3708/8154/files/accounting_information_systems_romney_13th_edition.pdf
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/51031200676.pdf
- https://cdn.shopify.com/s/files/1/0437/7100/3037/files/fatejetivenir.pdf
- https://cdn.shopify.com/s/files/1/0431/5778/2694/files/73346334150.pdf
- https://cdn.shopify.com/s/files/1/0438/3784/9762/files/pazusebeneb.pdf
- https://cdn.shopify.com/s/files/1/0432/4330/7175/files/cbse_class_10_light_reflection_and_refraction_notes.pdf
- http://www.w3.org/1999/02/22-rdf-syntax-ns#
- http://purl.org/dc/elements/1.1/
- http://ns.adobe.com/pdf/1.3/
- http://ns.adobe.com/xap/1.0/
- http://ns.adobe.com/xap/1.0/mm/
- http://ns.adobe.com/xap/1.0/rights/
- http://scripts.sil.org/OFL
Extracted artifacts 2
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off00006321.binbabd4af7ab0e4e5c14dcd58919b4ae07cc78fecd0fdf0668ec311480efee162a |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6321 | 5372 bytes |
font_01_sfnt_off00007581.bin8eee2ad69b0bd9e102f1d7faaf88f3df578d8efd7895ffdbd27b2f99b28e1b88 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7581 | 10304 bytes |
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