MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains numerous embedded links, many of which point to a redirector service (ttraff.cc) that is known to host malicious content. The document body, though partially corrupted, includes text suggesting a free download lure for a technical document, aligning with phishing and SEO spam tactics. The ML classifier strongly indicates maliciousness, and the presence of a malicious redirector URL is a high-confidence indicator of malicious intent.
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=aashto+tp+70+pdf+free+download In PDF document text
- http://files.shopstudiofitrx.com/uploads/1/3/0/8/130874332/af69ede329e6fb.pdfIn PDF document text
- http://files.wynnstan.com/uploads/1/3/0/8/130814411/saputudosevo-lirow-lisejolu-ronedipuziwow.pdfIn PDF document text
- http://files.centersquaremotors.com/uploads/1/3/1/4/131406202/72cd482be9f359.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/1/0431/0768/0405/files/59168370112.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/2219/5608/files/dimisanipojulukar.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/jenodilibaxu.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0427/6404/2396/files/dapiwukukaraka.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/7932/7141/files/pdf_to_wmf.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/7586/9599/files/something_corporate_konstantine.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0448/1361/5264/files/capitalismo_socialismo_y_democracia_schumpeter.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0427/9622/0572/files/amparito_roca_aubrey_winter.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/9011/5748/files/cuestionario_ser_bachiller_2020.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/8026/1525/files/xolelu.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0446/9538/8313/files/jquery._ajax_headers.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/5184/3737/files/rodegomezog.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/2588/2518/files/titanfall_2_monarch_guide.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/8088/4129/files/62323718197.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 4
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off000050f8.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x50F8 | 5172 bytes |
SHA-256: c1d86ba4264f51ade624a61b6158f399f8a562921fcf708307415a941b306ea9 |
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font_01_sfnt_off00006294.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6294 | 2512 bytes |
SHA-256: 3dff774280fc1c044d755fc17b2e7387568507615ee58fb81b7116869138b341 |
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font_02_sfnt_off00006d8f.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6D8F | 9876 bytes |
SHA-256: f357b5454be3c038a9783e83c2e15e9e5b2278a98612390362d07afe4bfeb312 |
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font_03_sfnt_off00008f60.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x8F60 | 4324 bytes |
SHA-256: 1158d95dac44631f497756703988ba3645251422e7ff0015d3fca430225e7c3e |
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