MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious Link
The PDF contains a large number of embedded links, many of which point to Shopify domains hosting other PDFs, suggesting a link farm for SEO manipulation. One critical heuristic identified a link to a known malicious redirector, ttraff.cc, which is used to obscure the final destination. The document body, though partially corrupted, contains text related to a book download and the malicious redirector URL, reinforcing the lure. 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=data+structure+and+algorithmic+thinking+with+python+pdf+free+download In PDF document text
- http://files.colleenscoachingcorner.com/uploads/1/3/0/9/130969703/2536747.pdfIn PDF document text
- http://bifajem.kamilatuszynska.com/uploads/1/3/2/7/132741099/pobenubawi.pdfIn PDF document text
- http://files.dolphiness.net/uploads/1/3/0/7/130775402/litenaxa.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/1/0428/5943/0047/files/2140421915.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/5679/0695/files/history_of_allopathy.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/8205/5842/files/96059556361.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/7332/2664/files/verizon_channel_lineup_2015.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/tunamowari.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/0835/2679/files/96445942011.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/3093/6733/files/67311400771.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/0063/5290/files/7571032127.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/7503/4520/files/fusionner_deux_documents_en_un.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0438/4430/5061/files/50350156227.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/6392/7203/files/tozidevofitidorajuv.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/1878/7743/files/35797685197.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/4837/8274/files/python_f_string.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/4083/3690/files/tupozawibupukurudepil.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
🗂 Part of campaign:
colleenscoachingcorner.com
4 samples
Extracted artifacts 2
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off00004660.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x4660 | 5828 bytes |
SHA-256: 90b6107ca722ea2d48c1fd5003308afe90b653abeb1e6815d133098ef470f675 |
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font_01_sfnt_off00005a2c.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x5A2C | 9984 bytes |
SHA-256: c1269a64a5cfbe92d1cd6e6042c186d7dd6155eb67d547a8c3323a5d83b6653c |
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