MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
The PDF file contains a link to a known malicious redirector, ttraff.cc, which is likely used to obscure the final destination of the malicious payload. The document body, though heavily obfuscated, contains the URL and appears to be a lure related to a book PDF. The presence of numerous other links to external PDFs, many hosted on Shopify, suggests a link farm or SEO poisoning tactic to increase visibility. No scripts were extracted, but the primary malicious activity is the redirection to a harmful URL.
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=alguma+poesia+livro+pdf In PDF document text
- http://kegodejor.ckpinkinvitational.com/uploads/1/3/1/4/131406286/6d208bc964e.pdfIn PDF document text
- http://files.heavencanbefound.com/uploads/1/3/1/3/131384018/tizalunovemili.pdfIn PDF document text
- http://files.stopanddecide.com/uploads/1/3/1/8/131856105/jiwukoguzavuti-fulol-suwolebar.pdfIn PDF document text
- http://files.stpeteretown.org/uploads/1/3/0/7/130738984/bf6501cf5ae7.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/1/0431/1610/1781/files/63070334400.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/0423/9770/files/36560526839.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/pegegezanonipilupe.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/9567/8359/files/algebra_2_book_pearson.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/2909/3784/files/tamavazipepizi.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/5664/4774/files/57467028896.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/5704/5913/files/tuwedozigitodemetogu.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/poxusulijupidokubeb.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/86662201832.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/4162/8072/files/oxford_handbook_of_clinical_pharmacology.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/5085/2762/files/77541574148.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/21617342462.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_off00006b63.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6B63 | 5104 bytes |
SHA-256: 4da747dac0ac926e7cc128297d288973310a3d6e524e9a1c5e30450a03f5f32b |
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font_01_sfnt_off00007cc9.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7CC9 | 12684 bytes |
SHA-256: 4e67c7dfdd46246d35bc3550d1c1a1d7549a69d3228c092ecf92f37f2815a448 |
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font_02_sfnt_off0000a2fa.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xA2FA | 4324 bytes |
SHA-256: 1062cd8ddf90f4344fa193b395386d5669df1a952e5759311ca261a71931f361 |
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