MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.001 User Execution: Malicious Link
T1059.001 PowerShell
The PDF file contains a critical heuristic firing for a malicious redirector link, pointing to 'https://ttraff.cc/pify?keyword=facts+about+human+brain+pdf'. Additionally, it exhibits a PDF link farm heuristic, indicating a large number of external links, with 'https://cdn.shopify.com/s/files/1/0430/6924/3553/files/82912600122.pdf' being the first listed. These elements suggest the document is designed to redirect users to potentially harmful websites, likely for phishing or malware delivery.
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=facts+about+human+brain+pdf In PDF document text
- http://files.tegnadesigntank.com/uploads/1/3/1/4/131437491/nuvonobudelizowogot.pdfIn PDF document text
- http://files.brickitalia.com/uploads/1/3/1/6/131606822/nobenoju.pdfIn PDF document text
- http://files.snselectricalltd.co.uk/uploads/1/3/1/4/131482916/4c92fcd37b6b0e.pdfIn PDF document text
- http://files.frailtyprevention.co.uk/uploads/1/3/1/4/131437649/fce051e38a8ce.pdfIn PDF document text
- http://files.matharteducation.org/uploads/1/3/0/8/130874400/ef1a27fc26e4.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/1/0430/6924/3553/files/82912600122.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/6845/6102/files/xosinekupopaxasugoza.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/8762/5369/files/77853586917.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/7576/3353/files/52310660124.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/2090/9718/files/zijumowew.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0438/2271/0941/files/78010037296.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0427/4244/8295/files/wudirolujotamilafesono.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/0668/0484/files/31058700280.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/0415/8375/files/dalikixekerosajuz.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/3341/9160/files/61774511159.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/3359/8880/files/dofuzip.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0427/4431/6070/files/tuwodovalived.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/9341/7366/files/26237059326.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 2
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off000079e9.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x79E9 | 5224 bytes |
SHA-256: 31bf6926aef7c79bcff2891ae7a99f8745f3e341c09542b16ce4bf204ece7f9f |
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font_01_sfnt_off00008b6a.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x8B6A | 10232 bytes |
SHA-256: a66a3ebed05bd70c3d7f8498385d65641caf49c1f99de14d35e1ec080527c872 |
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