MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF contains a significant number of embedded links, with one heuristic specifically identifying it as a PDF link farm. The primary link, https://ttraff.cc/pify?keyword=example+introduction+for+biology+lab+report, is flagged as a malicious redirector. The document body, though heavily obfuscated, appears to contain text related to academic reports and includes the same malicious URL, suggesting a lure to a malicious site.
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=example+introduction+for+biology+lab+report In PDF document text
- http://files.pitchperfectok.com/uploads/1/3/1/6/131637553/joxagoxiwuferijef.pdfIn PDF document text
- http://files.aeinstructional.com/uploads/1/3/1/8/131872273/kamakijifofogole.pdfIn PDF document text
- http://fukubudap.bqpublishing.com/uploads/1/3/1/0/131071021/aa839a1b87.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/1/0435/0253/4822/files/satyanarayana_biochemistry_free_online.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0451/9470/7095/files/pepsi_logo_meaning.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/0469/8535/files/one_ring_rpg.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/2602/2557/files/anabasis_trke.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/6883/3436/files/39643707179.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/8103/1064/files/archivo_ingles_a_espaol.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/1537/2953/files/27638517895.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0454/6861/4808/files/sociolinguistics_and_language_teaching_download.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/7417/4624/files/hot_springs_spa_repair_manual.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/0083/9842/files/nukobesebaxokejutazubev.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/5480/9759/files/kotisutezigo.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/8438/9275/files/83162853865.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/6993/9612/files/69472129680.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_off00007035.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7035 | 5564 bytes |
SHA-256: 3cbc3710fc7cb70167341281e3faada74fa0e33288699a7dffeb0f4c1bc2277a |
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font_01_sfnt_off0000831b.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x831B | 10512 bytes |
SHA-256: 13e827d7cee22ebc3e399462cd7c6db821838ec0cd013a367d59fe3b189349e5 |
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font_02_sfnt_off0000a6ec.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xA6EC | 16328 bytes |
SHA-256: c4483d0a2685d558df97df6ba840746f2870e6254d6d5d8edd69700eac20a654 |
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