MALICIOUS
202
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF contains numerous links to a redirector service, identified by the PDF_MALICIOUS_REDIRECTOR_LINK and PDF_SEO_LINK_FARM heuristics. The primary lure appears to be a free download, as indicated by the URL keyword and the SE_DOWNLOAD_BUTTON heuristic. The ML classifier strongly suggests maliciousness. While no scripts were extracted, the embedded links and the nature of the heuristics point to a phishing or scam attempt.
Machine Learning
- Nyx PDF Classifier malicious score 1.0000
Heuristics 6
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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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Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTONDocument contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
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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=affinity+designer+workbook+free+pdf In PDF document text
- http://files.stjohn23rdministryofpresence.org/uploads/1/3/0/7/130776275/6604122.pdfIn PDF document text
- http://files.detail4less.com/uploads/1/3/2/7/132740553/4790180.pdfIn PDF document text
- http://files.texashandmadesuds.com/uploads/1/3/0/8/130874043/4930869.pdfIn PDF document text
- http://files.yiannchen.com/uploads/1/3/1/4/131483149/jemasug_sinem.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/1/0431/2884/8538/files/14724653058.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/2174/6847/files/duzowigagarejiroferegufi.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0436/0214/9540/files/comment_fusionner_deux_fichiers_adobe_reader.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0427/9032/2342/files/23871574279.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0438/2133/4688/files/77142221797.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/2539/8946/files/come_monday_jimmy_buffett.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0449/0684/0231/files/npt_tap_drill_sizes.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0440/6116/3670/files/baunvo_bayern.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/9714/4990/files/dumevejefamanezolowidajux.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/2136/8482/files/fojufivutodunitite.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/6991/4782/files/16414333372.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/5101/6614/files/80323260022.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_off00005f26.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x5F26 | 5356 bytes |
SHA-256: 1b0df347815e46d3cf7fa4620195ad8055c4523d6058af53a0b2598e9b0dc9ec |
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font_01_sfnt_off00007184.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7184 | 13084 bytes |
SHA-256: bf70983b6b34f3b24dd67c19b6d9367f85ce55a07aa651d510a86c2e8e86043a |
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