MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
The PDF contains a critical heuristic firing for a malicious redirector link pointing to 'ttraff.com'. Additionally, it exhibits characteristics of a link farm, with numerous external PDF links, many hosted on 'cdn.shopify.com'. The document body, though heavily obfuscated, contains text related to academic syllabi, suggesting a lure to disguise the malicious link. The primary attack vector appears to be social engineering via a deceptive 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.com/wb?keyword=amie%20section%20b%20syllabus%20computer%20science%20engineering%20pdf In PDF document text
- http://files.shift-vibes.com/uploads/1/3/1/8/131856949/jajisiwufij.pdfIn PDF document text
- http://files.rockfishgrovefwbchurch.com/uploads/1/3/1/1/131164386/4647d.pdfIn PDF document text
- http://files.rdpresets.com/uploads/1/3/0/7/130740033/kivoduta.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/1/0427/7701/8524/files/fuwufe.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/9375/4009/files/vavanutibo.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/7005/4805/files/76818131555.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/48054684450.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/pizejop.pdfIn PDF document text
- https://dozosemi.files.wordpress.com/2020/07/porusanojugup.pdfIn PDF document text
- https://selegug.files.wordpress.com/2020/07/filutotiwipoxazinali.pdfIn PDF document text
- https://wejaxan901614801.files.wordpress.com/2020/07/20679812923.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/7080/7459/files/larugerubojufobipuji.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/2052/5469/files/32142364458.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/5789/7882/files/27566773657.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/6469/6738/files/17380772859.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/3518/1724/files/penom.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/6100/9829/files/dorobij.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/tefabojukiva.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/5147/5366/files/10124882559.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/9249/9877/files/81554785618.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0439/2956/7387/files/65852225117.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 2
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off00006a3b.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6A3B | 5588 bytes |
SHA-256: 0827b30e237e61af80c20476044c969a407418ef26a8a99156a90a2648313e6a |
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font_01_sfnt_off00007d1f.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7D1F | 10212 bytes |
SHA-256: f2be54ace95303501edd25b265866933b94ab0a0742e83392104c6b853b28b92 |
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