MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious Link
The PDF contains numerous embedded links, with a primary link pointing to a known malicious redirector. The document body, though obfuscated, includes the malicious URL and appears to be a lure for downloading further malicious content. The ML classifier strongly indicated maliciousness, and the PDF structure suggests a link farm designed to distribute malware.
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=irritable+bowel+syndrome+pdf+download In PDF document text
- http://files.jessicadixonmajka.com/uploads/1/3/1/6/131606758/72d9c1.pdfIn PDF document text
- http://files.mylittlestrongone.com/uploads/1/3/0/9/130969206/1b633777f.pdfIn PDF document text
- http://files.southcoastmamasandbabies.com/uploads/1/3/1/8/131856917/pagubine-muwuginoguzadu.pdfIn PDF document text
- http://files.rvstore.org/uploads/1/3/0/9/130969403/6657852.pdfIn PDF document text
- http://wotod.judiculbertson.net/uploads/1/3/0/7/130775971/roletogukagijibog.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- http://www.daltonmaag.com/In PDF document text
- https://cdn.shopify.com/s/files/1/0429/2686/6599/files/26737355830.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/2750/4032/files/68735776439.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0436/3314/8062/files/water_billing_system_project_report.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/0989/1742/files/77892107898.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/0088/9507/files/fajidelefezore.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/8289/8840/files/74253606782.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/4296/3613/files/68363948942.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/radeziwiwilajumigetadad.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/2716/1507/files/jowekiteken.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/4958/9668/files/13133838583.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/8771/4721/files/kudosorefidozigajaj.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/3502/5831/files/ponudolokigegopo.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_off000060b2.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x60B2 | 5244 bytes |
SHA-256: 43cbc3c5168f833f84f5f442217c7c40ebc0affff9a17d207fa460bb11b075cf |
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font_01_sfnt_off00007271.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7271 | 10508 bytes |
SHA-256: 16933eac8801a951fc6fd33e1c34085c2a886378f25609f09dcc9b5635ef652a |
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font_02_sfnt_off00009619.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x9619 | 4324 bytes |
SHA-256: ff5f0ef16caf3e97cd1984b3a03ea88e11eab8cf63d2ee006085a4b9995833f3 |
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