MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
The PDF was flagged by multiple critical heuristics indicating malicious redirector links and a link farm. The ML classifier also strongly indicated maliciousness. The document body contains numerous URLs, with one pointing to a known malicious redirector. The primary attack pattern appears to be SEO poisoning via a PDF link farm, likely leading to phishing or malware delivery.
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=caida+de+la+urss+resumen+pdf In PDF document text
- http://files.wickenburgsoccer.com/uploads/1/3/0/7/130740563/be53f284f6f2e.pdfIn PDF document text
- http://files.ksguns60478.com/uploads/1/3/1/3/131379246/topegone_fuxuvumises_waduwezuguja.pdfIn PDF document text
- http://talunum.alpinecbd.co/uploads/1/3/0/9/130969472/7a77fd6ba.pdfIn PDF document text
- http://files.greatersandhills-greatercarolina.org/uploads/1/3/1/1/131163898/jiwupe_kirusujuje_lurezif.pdfIn PDF document text
- http://files.martinehrensvard.com/uploads/1/3/0/7/130739544/duwugilegop.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/1/0430/9975/0560/files/kozefazemi.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/0239/5813/files/dafixanuzunaxizerekuf.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/7093/0600/files/vebukizazazuro.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0427/9504/0924/files/veponepevawa.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0427/6997/3415/files/piwikonadeb.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/7538/7043/files/42875163097.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0438/0613/0337/files/gokiwunegog.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/41732402988.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/4727/2098/files/xevojipekiwuwemusex.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/3728/5797/files/99457718971.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/vasopamomakazemujavinis.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/7930/2296/files/fiwalosutevo.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/1576/6177/files/75260108510.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
🗂 Part of campaign:
greatersandhills-greatercarolina.org
3 samples
Extracted artifacts 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000660c.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x660C | 4900 bytes |
SHA-256: d399d6cb36714241eb1cf3ee686ec1c33efac6a0023118c88fdadce6f3590ce9 |
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font_01_sfnt_off00007689.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7689 | 11124 bytes |
SHA-256: 3191a6a6791f4fb56ebde464de329329ec5b6a2cdf832e0551407481d9caa090 |
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font_02_sfnt_off00009aa5.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x9AA5 | 4324 bytes |
SHA-256: ff5f0ef16caf3e97cd1984b3a03ea88e11eab8cf63d2ee006085a4b9995833f3 |
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