MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious Link
The PDF contains multiple embedded links, with one critical heuristic firing indicating a link to known malicious redirector infrastructure. The document body, though heavily obfuscated, contains text related to a book title and a URL that appears to be part of a link farm designed to attract search engine traffic. The primary malicious URL identified is ttraff.ru, which is used in conjunction with a keyword suggesting a lure for free book downloads.
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=clinical+hematology+and+fundamentals+of+hemostasis+edition+pdf+free In PDF document text
- http://files.cookwithjames.com/uploads/1/3/0/7/130739340/8638391.pdfIn PDF document text
- http://files.blackwoodsounddesign.com/uploads/1/3/1/8/131871625/fbbbd890d7.pdfIn PDF document text
- http://files.barkinforapark.org/uploads/1/3/1/8/131856276/puzijozisibajitagowa.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/1/0428/9835/8432/files/23063093424.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/1763/3949/files/sazemakuvu.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/5475/9065/files/sodamaxegonexinidab.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/4388/9058/files/nugitawugufigonug.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/5651/2676/files/sajesaxano.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/8790/5446/files/39017977959.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/6488/4384/files/xulitivojesepapuv.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/6869/3411/files/23614508596.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/8139/1514/files/56074481483.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/6822/6725/files/nekilulirufamobejiwiro.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/0766/2490/files/bewifakivoguduxil.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/1102/2756/files/70009475292.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/1572/4456/files/kadaxenoxewebe.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/0428/1511/files/17725043743.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:
cookwithjames.com
4 samples
Extracted artifacts 2
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000512a.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x512A | 5576 bytes |
SHA-256: aa2234b239e615dce4b65c5f1a81b231b9b630223f309552dc84a31d6d382aca |
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font_01_sfnt_off00006401.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6401 | 11132 bytes |
SHA-256: 7214c9235ee809b3f030feb1a4fc5697db405496388c339f7e9636981ce090e4 |
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