MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
T1204.002 Malicious Link
The PDF contains a large number of embedded links, many of which point to Shopify domains, but one critical link redirects to a known malicious domain (ttraff.cc). This suggests a lure to trick users into visiting malicious sites under the guise of providing algorithm tutorials. The ML classifier also strongly indicated maliciousness.
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=design+and+analysis+of+algorithm+tutorialspoint+pdf In PDF document text
- http://files.jameslfoxphotos.com/uploads/1/3/2/7/132712209/nosadutakugodet.pdfIn PDF document text
- http://files.tonneysclass.com/uploads/1/3/1/4/131407051/duwokajomozatabofuj.pdfIn PDF document text
- http://files.medicalequipmentcorp.com/uploads/1/3/0/8/130873893/7cf02b.pdfIn PDF document text
- http://files.suffernbasketballprogram.com/uploads/1/3/1/4/131453684/lumiravoga_lakur_biximalowejow_viwaxegofixut.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/1/0436/0405/0084/files/72900762663.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/6489/3345/files/jugonutunewevenezapomun.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/1222/6200/files/2727151066.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/2178/6521/files/77706001009.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/lekerumukin.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0436/0221/5074/files/68991115046.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/8175/1964/files/kopoduwonurija.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0438/2231/7728/files/xumixawefonotot.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/2500557594.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/3145/3081/files/742137328.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/7814/7491/files/20121458792.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/0814/8127/files/garewosabumulezetu.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_off00006c32.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6C32 | 5440 bytes |
SHA-256: 7338add942f6bb7aaf8d885afdcbc01402c74a42663c7a989713d4e1ffcd8f89 |
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font_01_sfnt_off00007e89.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7E89 | 9920 bytes |
SHA-256: 689ab561e2c08c6b6bd449a8c39d15453041464a28cf18f2dffb31e01dc96bd5 |
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font_02_sfnt_off0000a0b7.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xA0B7 | 16112 bytes |
SHA-256: 275d0ef8f619a30f75d5b67021c85ffe51dbf44d82a44ecb2d07128ff93f9399 |
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