MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
The PDF contains numerous embedded links, with one specifically pointing to a known malicious redirector. The document body, though heavily corrupted, contains text related to 'Calendario escolar 2020' and the malicious URL, suggesting a lure to trick users into clicking the link. The presence of a link farm further supports the malicious intent of driving traffic to potentially harmful sites.
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.ru/pify?keyword=calendario+escolar+2020+y+2020+sep+185+dias+pdf In PDF document text
- http://files.captiv8designsusa.com/uploads/1/3/0/7/130738859/86d772.pdfIn PDF document text
- http://files.claudelafleur.com/uploads/1/3/1/8/131871569/pajuzinafor-tezezuv-vijukimo.pdfIn PDF document text
- http://files.amscanmanufacturing.com/uploads/1/3/1/0/131071258/nifadavewepodog_babomamudag.pdfIn PDF document text
- http://files.castlewoodclays.com/uploads/1/3/0/8/130873907/b18a71fa7bc6.pdfIn PDF document text
- http://files.rolloconstruction.com/uploads/1/3/2/8/132814071/baxevimo.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/1/0438/6009/9222/files/46140442513.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/1634/8057/files/57800195701.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0436/9183/5545/files/sorted_edges_algorithm.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/9872/5793/files/dufojegedagidipenuj.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/9798/0056/files/zimibego.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/0831/8878/files/fapafax.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/646255477.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/8587/9713/files/star_wars_armada_cards.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/5369/4626/files/gudevewalelotusebexit.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/5095/7991/files/32786411797.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/5843/8039/files/6901192491.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/6105/9482/files/fejaminapezepigotejixa.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 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off00006f1e.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6F1E | 5800 bytes |
SHA-256: 66faa3ae98da74a7339e1c59c00a98f182af28c96305008ad5af3bd12ef835a0 |
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font_01_sfnt_off000082f3.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x82F3 | 1852 bytes |
SHA-256: ab7952e30a868751faa025f2e14b53a51e83c417853e71d0ae878d8a5e8faa15 |
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font_02_sfnt_off00008bcc.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x8BCC | 11664 bytes |
SHA-256: 8511015176cc41bcd0aa0fddff607f6b4a2f84339cd7107e87a7aae39de429f6 |
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