MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains multiple heuristics indicating malicious redirector links and a link farm, suggesting an attempt to drive traffic to malicious sites. The primary redirector URL is `https://ttraff.cc/pify?keyword=geometric+distribution+pdf+function`. The document body, though heavily obfuscated, also contains this URL, reinforcing its role in the attack. The ML classifier strongly supports the malicious verdict.
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.cc/pify?keyword=geometric+distribution+pdf+function In PDF document text
- http://files.kdcfilms.com/uploads/1/3/2/3/132303133/memosu.pdfIn PDF document text
- http://files.johnptacek.com/uploads/1/3/1/4/131406365/668242.pdfIn PDF document text
- http://files.cruisingwithdonandglynda.com/uploads/1/3/1/3/131381237/4639455.pdfIn PDF document text
- http://files.colorandlightpaintingworkshop.com/uploads/1/3/1/3/131398095/64801.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/vevisip.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/6173/8662/files/plant_molecular_biology_notes.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0439/6243/3694/files/57921046562.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/8283/2280/files/national_literacy_learning_progressions.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/97428896976.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/4069/4684/files/42370641842.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0447/1137/9097/files/the_everything_learning_german_book_free.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0453/3213/6091/files/gre_barron_12th_edition_book.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0439/4424/7451/files/autopilot_microsoft.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/4890/2554/files/deverewejonikevisan.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/7860/5210/files/vemekuvi.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/2226/2178/files/kejebofuzupamuriwiba.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/4891/9450/files/lyman_load_data.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_off00008ac2.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x8AC2 | 5232 bytes |
SHA-256: 272087580804790015b0114d20bbebfc3d90e867eb15461b3c54a90ee4a5ee77 |
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font_01_sfnt_off00009c79.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x9C79 | 15228 bytes |
SHA-256: 55fab6133ed1141999c695d704bd1f80d746a18ab64fca937ea2afa7434cb288 |
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font_02_sfnt_off0000cccb.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xCCCB | 16580 bytes |
SHA-256: 8cacf1f4d0ead03d402f35ed527e3991b70db4947b2fe299868a118ad333eb25 |
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