MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
The PDF file contains a large number of embedded links, many of which point to a link farm hosted on Shopify. One of the primary links directs users to a malicious redirector at 'ttraff.cc', which is likely part of a phishing or malware distribution scheme. The document body, though heavily obfuscated, contains the URL 'https://ttraff.cc/pify?keyword=antibiotic+resistance+pdf+articles', suggesting a lure related to academic articles. The heuristic firings confirm the presence of malicious redirector links and a link farm, indicating a coordinated effort to drive traffic to malicious sites.
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=antibiotic+resistance+pdf+articles In PDF document text
- http://files.humphreyhummingbird.com/uploads/1/3/0/9/130969798/4dfe401fa3f.pdfIn PDF document text
- http://files.deweyfleszar.com/uploads/1/3/1/4/131483343/816272.pdfIn PDF document text
- http://files.apanelessperfection.com/uploads/1/3/1/8/131856119/xowotow_sememabexam_sikiz.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/1/0427/9674/4871/files/vezunaxudasekis.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/1739/5614/files/76736525885.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/7651/8049/files/paparuvogas.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/6851/3686/files/busuwijetasevuxavabow.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/4306/1913/files/zosukesexajudolelate.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/2270/5063/files/33856087876.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/3032/3095/files/21074888917.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/0336/2973/files/orange_marmalade_manga.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/2862/8124/files/691318184.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/6647/5174/files/33740327047.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/4361/8965/files/40109554584.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/7035/6637/files/zezulafunulok.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/2667/7913/files/wakakuw.pdfIn PDF document text
- https://medlineplus.gov/antibioticresistance.htmlIn 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_off00007126.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7126 | 5064 bytes |
SHA-256: 6ae9e2a26b4153a762720d2236b5a917afbd9fcf8dae0ad4a61aa7e170dfff2a |
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font_01_sfnt_off0000824f.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x824F | 10440 bytes |
SHA-256: c0e4a63f714e749e7dd0d508dd60bfd31d8bcff56e0d27fd5490b342c7673944 |
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font_02_sfnt_off0000a5c6.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xA5C6 | 4324 bytes |
SHA-256: 05d2457133b820fa77aa358e30e9acfbad3f04c46ced9a37296d9311117db176 |
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