MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1200 Hardware Add-in Systems
T1059.001 PowerShell
The PDF contains numerous embedded links, with one identified as a malicious redirector. The document body, though heavily obfuscated, contains text referencing 'Pdf file format specification tutorial' and includes the malicious redirector URL. The presence of a link farm heuristic further indicates an attempt to drive traffic to external sites. No scripts were extracted from this sample.
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/wb?keyword=pdf%20file%20format%20specification%20tutorial In PDF document text
- http://files.aprilsurgent.com/uploads/1/3/1/1/131163579/rorerekulaz_beluxarisilofi.pdfIn PDF document text
- http://files.camillachester.com/uploads/1/3/1/4/131438156/1388210.pdfIn PDF document text
- http://files.cleancooks.org/uploads/1/3/0/9/130969206/pepejipator-nepotan-vevim.pdfIn PDF document text
- http://files.mortarboardatucla.org/uploads/1/3/1/0/131070604/xijetujena-xugufaxewegef-nifix.pdfIn PDF document text
- http://files.eastonhungercoalition.org/uploads/1/3/0/9/130968985/075d1acda.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/1/0432/0536/1821/files/79536306078.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/0323/9840/files/beden_dili_kitaplar.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/97072231683.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0436/4759/8742/files/ritabopobaxeropezuwo.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/1331/5480/files/46548188466.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/3363/2678/files/wawinurisadulo.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/4313/4362/files/asymptotic_notation_in_data_structure_with_example.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0439/0889/0792/files/52019179809.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/1049/0519/files/bronchiolitis_guidelines.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/7623/0046/files/merge_two_sorted_arrays.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/13578549785.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/7274/9721/files/ccna_routing_and_switching_lab_workbook.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_off00006972.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6972 | 5300 bytes |
SHA-256: 548939c19124a542369101522d1e03482445b960451350308c0c306cb1d94737 |
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font_01_sfnt_off00007b62.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7B62 | 9812 bytes |
SHA-256: 8b905198968190b0016b53505489847afdd55e61663e8049488f9ed93223b273 |
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