MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF contains numerous links, many pointing to a redirector service, suggesting a link farm or SEO poisoning tactic to distribute malicious content. The primary malicious link, 'https://ttraff.ru/pify?keyword=bitsat+last+year+paper+with+solution+pdf', is identified as a malicious redirector. The document body, though heavily obfuscated, contains this URL and other Shopify links, likely intended to appear as legitimate academic resources to trick users into clicking.
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=bitsat+last+year+paper+with+solution+pdf In PDF document text
- http://bevujiv.mbcdoulaschool.ca/uploads/1/3/0/7/130775934/podelawepipogebo.pdfIn PDF document text
- http://sewik.candlewyckhomes.com/uploads/1/3/0/8/130813765/2438796.pdfIn PDF document text
- http://files.edgeofstyle.net/uploads/1/3/1/6/131637889/lotuxexabuzava.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- http://fedorahosted.org/lohitIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/9835/8428/files/24211633732.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/4521/5656/files/balanced_binary_tree.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/8937/1040/files/zusetogurexofazaxito.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0436/2492/3298/files/aerodynamics_lecture_notes.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/0890/0768/files/nateladamuzagub.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0436/3105/0915/files/67465536684.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/6668/6629/files/rawava.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/1942/6198/files/wefuninubatebomarol.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/2426/8968/files/free_amharic_orthodox_books.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0439/4595/1400/files/38413536898.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/5670/9273/files/43406795801.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 5
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off00006163.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6163 | 5372 bytes |
SHA-256: 83b107ee28a27d31d566d8715096459ee75d48c35fc48a8398517e8495453771 |
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font_01_sfnt_off000073ad.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x73AD | 5648 bytes |
SHA-256: 5c142e21529c3008cd9965c43e0f8c5d3dc883d3fc94227741b9e95ea3527861 |
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font_02_sfnt_off0000836c.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x836C | 10240 bytes |
SHA-256: 2ffd1ce48af8af121ff33842044ec9e8673585f04015edc278c2c6248288e4f3 |
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font_03_sfnt_off0000a676.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xA676 | 16224 bytes |
SHA-256: 7a7e0f9cb89785dee93ecfbcc78ef93b5a18a5022886c2d5a0bf15d9412c15a0 |
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font_04_sfnt_off0000bbfe.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xBBFE | 3420 bytes |
SHA-256: 21cedf5b71e6b39afe8c8afd78a750cfb6b6ec6b92560ed3201933dfcdfafcf2 |
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