MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
T1204.002 Malicious Link
The PDF contains a malicious redirector link pointing to 'ttraff.ru', disguised with a seemingly legitimate academic keyword. The document body, though heavily obfuscated, contains the same academic keyword and the malicious URL. The PDF also hosts a large number of external links, many pointing to Shopify, suggesting a link farm or redirection strategy. The primary attack vector appears to be tricking the user into clicking the malicious link within the PDF.
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=adipocyte+differentiation+and+gene+expression+pdf In PDF document text
- http://files.flights-of-fantasy.com/uploads/1/3/1/4/131409761/1233061.pdfIn PDF document text
- http://zibori.jhmartist.com/uploads/1/3/1/3/131381204/f6d337.pdfIn PDF document text
- http://files.naturalmusicmarketing.net/uploads/1/3/0/8/130874050/refeg-mikugeji-rovowisosib-sogiweze.pdfIn PDF document text
- http://files.27westmovie.com/uploads/1/3/1/4/131437229/niviv-dukanakof-fugolose.pdfIn PDF document text
- http://files.dayofreligiouspluralism.org/uploads/1/3/2/3/132303138/4a55fb016bcece.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/1/0431/6794/0765/files/86019991169.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0440/1076/6486/files/minimization_of_boolean_functions.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/8555/2030/files/gaxuganofuripedoje.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/3840/7845/files/kozepotebamitubejotored.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/43692268827.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/0324/7781/files/vejijipapolemeb.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0447/1826/0377/files/harbor_breeze_remote_control.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0427/9923/5228/files/fizukasudomufadiwukodumuj.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/9889/8592/files/4607987350.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/7971/9330/files/hipoplasia_del_cuerpo_calloso.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/0174/1463/files/9412856986.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/3786/7687/files/the_sims_deluxe_edtion.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/6073/1803/files/agile_software_development_with_scrum_mike_beedle.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_off00008e0b.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x8E0B | 5452 bytes |
SHA-256: 83a84fb4f6c8a9e4d703f91580e60aa3fa08c3efe3b58019abbfe47b4d86e81b |
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font_01_sfnt_off0000a0b7.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xA0B7 | 10240 bytes |
SHA-256: 7877f68522e4cd344741a846ae1ad8464f61d1d56ba2fb524a13b03fd713901d |
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font_02_sfnt_off0000c3e8.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC3E8 | 16148 bytes |
SHA-256: 43dd7310e986e37c0562d6efd2a67b6291a0d41fa892ecd43b306c3e7231f7b7 |
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