MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF contains numerous links designed to appear as a free download for an engineering textbook solution manual. These links predominantly point to a redirector service (ttraff.cc) which is flagged as malicious. The ML classifier also strongly indicated maliciousness. The document's structure and embedded links suggest a phishing or scam attempt to drive traffic to malicious sites.
Machine Learning
- Nyx PDF Classifier malicious score 0.9999
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=control+systems+engineering+7th+edition+solution+pdf In PDF document text
- http://files.arhstyles.com/uploads/1/3/1/4/131437333/kowuwexili-fasusulizi.pdfIn PDF document text
- http://files.earthfloridajax.com/uploads/1/3/0/7/130740017/zilipo.pdfIn PDF document text
- http://files.wcsuticklab.com/uploads/1/3/1/4/131454696/1498399.pdfIn PDF document text
- http://files.mrsararadian.com/uploads/1/3/1/4/131453676/725d0ad5d8b20d.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/1/0428/0044/7655/files/jokotexorezal.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/3161/6923/files/xiwozo.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/4666/5382/files/witonuze.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/5820/8672/files/kopovovumuvuxojotevokus.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/5771/6119/files/pixubepafipuxop.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/6472/9512/files/xadiwimexomanemixigewini.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/4718/9670/files/d_d_rope_of_climbing.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/6231/9521/files/osrs_amethyst_broad_bolts.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/0935/1575/files/58244014016.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/7732/8278/files/kaxekamur.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/9302/5183/files/91693060889.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0439/2799/4523/files/16119867317.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_off0001ab6a.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1AB6A | 5332 bytes |
SHA-256: e46a2820fdee3548016d4f230348d4bd2b48c903cacbb7e8f68caeb17ae006f2 |
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font_01_sfnt_off0001bd6f.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1BD6F | 17888 bytes |
SHA-256: 994c956161645f535f8dfd301c49a7165706c8405aafcc79913a88cad3caeb19 |
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font_02_sfnt_off0001f4d3.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1F4D3 | 16692 bytes |
SHA-256: 6580be786b1a6bd4ddd2f852bbdf6b53fd69956994b53efbb1ef70aafa5b84ba |
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