MALICIOUS
202
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 (ttraff.com) that is flagged as malicious. The document body, though heavily obfuscated, contains a URL that appears to be a lure for downloading a PDF related to 'algorithms and data structures'. This suggests a phishing or scam attempt, likely using a spearphishing attachment as the initial access vector. The ML classifier strongly supports the malicious verdict.
Machine Learning
- Nyx PDF Classifier malicious score 1.0000
Heuristics 6
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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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Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTONDocument contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
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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.com/pify?keyword=algorithms+and+data+structures+pdf In PDF document text
- http://vududobar.fillmaninsurance.com/uploads/1/3/1/4/131437402/lamufokodixe_mawizusod_sebuk.pdfIn PDF document text
- http://files.fitworks1.com/uploads/1/3/0/8/130874543/siturikatonunevov.pdfIn PDF document text
- http://files.skyviewwa.com/uploads/1/3/0/8/130873717/tefuvemodixol-nebidimeno-kafujur.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- http://www.daltonmaag.com/In PDF document text
- https://cdn.shopify.com/s/files/1/0429/9853/0202/files/cardiomiopatia_restrictiva.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/9266/3702/files/vigifaxonamuvuw.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/7258/4861/files/naxedibe.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/8014/5313/files/16871584391.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/1509/3920/files/76103444255.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/7727/1706/files/fadevapizuredawigibawin.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0436/2688/9369/files/46192747278.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0436/1748/4957/files/adn_polymerase.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0438/2516/8544/files/pipojo.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/2494/9153/files/jakavulefovajaw.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/5523/4710/files/15076287233.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/5150/7112/files/89307359908.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/3080/5671/files/41326169218.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
Extracted artifacts 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off000078c1.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x78C1 | 5440 bytes |
SHA-256: b1f1532cbe55f5472db3f29db9c086c680bd61d4f6312822deca94b0d9c4d3d3 |
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font_01_sfnt_off00008b12.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x8B12 | 10348 bytes |
SHA-256: 201362107f5aff7771865f0e34ee6693b7959cf73208c0c8d7282b819932a241 |
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font_02_sfnt_off0000ae9e.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xAE9E | 4324 bytes |
SHA-256: a542ec26cea93e049a2e27cd59b1347dd9bbdea13775fd7b822b3c2b3136116f |
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