MALICIOUS
202
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF contains a link disguised as a calendar download, which redirects to a known malicious infrastructure. The document body and embedded link actions suggest a phishing or scam attempt to trick users into visiting a malicious URL. The ML classifier strongly indicated maliciousness, and multiple heuristics flagged the redirector link.
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/wb?keyword=ttd%20calendar%202020%20pdf%20tirumala In PDF document text
- http://valeri.sacicc.org/uploads/1/3/1/4/131407005/teverapozimew-jisejaziduvozop-nusamesurujikim.pdfIn PDF document text
- http://files.pandlexpressinc.com/uploads/1/3/1/4/131438641/45a60b81b51ed4.pdfIn PDF document text
- http://files.typebtriathlete.com/uploads/1/3/1/4/131436978/xuruxinubeme.pdfIn PDF document text
- http://files.cherryhurstcivic.org/uploads/1/3/1/4/131452904/c7dc628.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/1/0433/0687/7080/files/21884581804.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/0225/7823/files/59286910844.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/4839/3112/files/90094196365.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/3724/5085/files/ccna_cisco_certified_network_associate_study_guide_7th_edition.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/2794/5889/files/ibm_aix_certification_dumps.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/5757/7122/files/zaruzikumex.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/1177/6416/files/1141827260.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/5294/8901/files/onkyo_firmware_update.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/9445/0078/files/72058093465.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0439/2468/4955/files/alvaro_gomez_hurtado_la_revolucion_en_america.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/4888/6684/files/57067667705.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/2592/4249/files/sazakizizopipedumo.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/6197/6994/files/4301475990.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/tosinumemelijigejidab.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/5930/4865/files/odysseyware_geometry_semester_2_answers.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_off00006cd3.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6CD3 | 5348 bytes |
SHA-256: 165558c6e803a6d67d77e826962d2c1ae5ddd200ef7e1903297430d19eefe664 |
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font_01_sfnt_off00007ee8.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7EE8 | 15344 bytes |
SHA-256: bf462aeac9bd6f3c69d96eb7bcda3f20e5328195243cb507eccc846be2d6aee2 |
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