MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious Link
The PDF was flagged by multiple critical heuristics for containing a malicious redirector link and a link farm. The ML classifier also strongly indicated maliciousness. The document body contains the primary malicious URL, which is likely intended to lure users to a phishing or malware distribution site. The presence of numerous links, many pointing to Shopify domains but likely serving as a cover, reinforces the link farm detection.
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=endo+and+exo+worksheet In PDF document text
- http://files.texascityhschoir.com/uploads/1/3/2/7/132740413/wulaloda_gutof_motezovodol.pdfIn PDF document text
- http://files.shepherdhills.org/uploads/1/3/0/8/130874204/229c88.pdfIn PDF document text
- http://morobun.townofwise.net/uploads/1/3/1/8/131871721/vetenufo.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/1/0433/7473/9607/files/global_business_today_8th_edition_free.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/5981/3279/files/xotevufus.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/7573/1616/files/kegexar.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/6480/2982/files/rofazomizuj.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/2287/5797/files/49173927100.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/7983/4531/files/xukuvegobowifeligilik.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/2677/6227/files/zixikewemorarekinife.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/6587/6390/files/pilusasovovupizetas.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/3903/8360/files/phylum_actinopoda.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0427/4647/8759/files/lakojifov.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
- https://savannah.gnu.org/projects/freefont/In PDF document text
- http://www.gnu.org/licenses/In PDF document text
- http://www.gnu.org/copyleft/gpl.htmlIn PDF document text
- http://scripts.sil.org/OFLIn PDF document text
- http://dejavu.sourceforge.netIn PDF document text
- http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text
Extracted artifacts 4
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off00006260.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6260 | 6492 bytes |
SHA-256: b9c1bd2281f23f09d905494077011cda678d8ff8a20e62f41a46584ce81a564d |
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font_01_sfnt_off00007295.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7295 | 5064 bytes |
SHA-256: ba01c96ef52a2a583d88a6722cdd320b65e322f09d25791ea74fefa5a977dfa3 |
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font_02_sfnt_off000083de.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x83DE | 9860 bytes |
SHA-256: e9c11568395f4daa49b4241d287b1d4ae32eef15ef5cba0d0303d65ba5c54cb0 |
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font_03_sfnt_off0000a580.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xA580 | 16152 bytes |
SHA-256: 70180b97a9b9fe0de1e0c05b06d733d04658c9f7a2923a3eee6842afe753d47e |
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