MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains multiple heuristics indicating it is a malicious redirector, specifically designed to lure users to a malicious site under the guise of offering a PDF download. The embedded URL 'https://ttraff.com/pify?keyword=arithmetic+progression+pdf+download' is flagged as a known malicious redirector. The document body, though heavily obfuscated, also contains this URL, reinforcing the phishing attempt.
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.com/pify?keyword=arithmetic+progression+pdf+download In PDF document text
- http://files.caravancreative.org/uploads/1/3/2/6/132682542/e788d.pdfIn PDF document text
- http://files.wisteriasage.com/uploads/1/3/1/0/131069781/devinebi.pdfIn PDF document text
- http://files.norwaygenealogybyjeanmarthaler.com/uploads/1/3/2/8/132814996/cb173.pdfIn PDF document text
- http://files.theperfecteventltd.com/uploads/1/3/0/8/130874284/9ca91779dd92.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/1/0434/2513/6792/files/83637173022.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/5819/1768/files/rukugonixefesudupedavinov.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/0953/2323/files/vulaxigelelef.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/1102/2756/files/zulademebudijigar.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/9088/6312/files/jifiwosolenotavisapi.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/1561/8203/files/33211871554.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/0131/5491/files/19667363652.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0440/6683/2534/files/kupomezofebovokirobu.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/7160/2855/files/3019222316.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/7075/7791/files/24700564260.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/0913/0143/files/sociological_perspective_on_health.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/89647405972.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/5627/4339/files/wajem.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
- http://dejavu.sourceforge.netIn PDF document text
- http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text
Extracted artifacts 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000ee4c.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEE4C | 5652 bytes |
SHA-256: d7830207e465abc25bb18bf8a0b091b0f53f20d03e3335eab4e841424eccdfe6 |
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font_01_sfnt_off00010172.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10172 | 14304 bytes |
SHA-256: 4c24eb368ad68c39ac5b2b6830a7e591f2e81ec9b568317c849134146188cfd3 |
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font_02_sfnt_off00012ede.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12EDE | 16088 bytes |
SHA-256: 51b8d4c4f17389d80b23040d591c0dccb099bca9103ea84f58116e310badbe13 |
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