MALICIOUS
202
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious Link
The PDF file contains multiple embedded links, including one identified as a malicious redirector. The presence of a 'download button' heuristic and the document body containing a URL further suggest a social engineering attempt to trick the user into navigating to a malicious site. The primary malicious IOC is the redirector URL.
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=learning+outcomes+module+in+tamil+pdf In PDF document text
- http://files.osspto.org/uploads/1/3/2/6/132695451/milivokagadafokem.pdfIn PDF document text
- http://files.malamathesea.com/uploads/1/3/0/7/130739593/lezupera.pdfIn PDF document text
- http://files.collectorsartists.com/uploads/1/3/0/9/130969791/1be0a58005ce.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- http://fedorahosted.org/lohitIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/6125/6096/files/najemekiza.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/4760/8730/files/kinupovubejosopevala.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/7399/4905/files/18905117171.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0449/5890/8584/files/curso_de_introduccion_a_la_economia_politica_paul_singer.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/1871/4264/files/9564877477.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/9182/0695/files/37084960476.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/6059/1776/files/25834852508.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/9331/9079/files/sezevutalopid.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/6961/1935/files/jenojadagefotodi.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0439/4146/2174/files/speak_english_business_like_an_american.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/1435/7145/files/betrayal_at_house_on_the_hill_rulebook.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0427/4746/1788/files/21509683409.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/94260126358.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/8850/2174/files/34660991441.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_off00006185.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6185 | 5416 bytes |
SHA-256: b948ff63dc2e296a3ce72a01bc03ba66cde1e3405ca69b8ff5e708e6f5cb240c |
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font_01_sfnt_off000073de.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x73DE | 4048 bytes |
SHA-256: f00898794647d1acd4785cb0c49c744b8a9237c3f5e3c222415a02ab61c216e3 |
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font_02_sfnt_off000081e5.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x81E5 | 10228 bytes |
SHA-256: 9ca9987b05a04a31db43339daee88bbde3e92e05e20231b92086e569b851c6c0 |
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