MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious Link
The PDF contains a large number of embedded links, many of which point to domains associated with link farms and redirectors. One critical heuristic identified a link to a known malicious redirector infrastructure. The document body, though heavily obfuscated, contains the URL https://ttraff.cc/pify?keyword=solving+linear+equations+with+brackets+worksheet+pdf, which is likely used to lure victims into clicking through to malicious content. No scripts were extracted from this sample.
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=solving+linear+equations+with+brackets+worksheet+pdf In PDF document text
- http://files.whatchelseaswatching.com/uploads/1/3/0/7/130775341/3180127.pdfIn PDF document text
- http://files.northmoruyasolarfarm.com.au/uploads/1/3/1/4/131409463/nimimax-tigek-rokejelemi-jajolafagukojet.pdfIn PDF document text
- http://zedunidak.erspamermusic.com/uploads/1/3/2/7/132741073/03339da.pdfIn PDF document text
- http://wojufew.dave4spotsy.com/uploads/1/3/1/6/131606490/zajirovasudela.pdfIn PDF document text
- http://files.norfolkaggieparentnetwork.org/uploads/1/3/0/8/130873942/5308867.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/1/0430/8326/8257/files/autoclave_function.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/2010/7424/files/calculating_standard_deviation_worksheet_answers.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/9970/7805/files/catholic_church_history.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/xazijejizamoketabuguta.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/0577/9878/files/56754106738.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/4265/1816/files/lunimevinulogowipulekagup.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/2668/4824/files/minecraft_unbreaking_4.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/2347/3568/files/97007908132.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/2468/5975/files/39733301248.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/5220/3161/files/95998178831.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/4628/1122/files/85875964350.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/2200/7969/files/91924032696.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/4371/7274/files/94939653825.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_off00007566.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7566 | 6000 bytes |
SHA-256: 9754524b420c23209541129e25e14c2e0fc95e60710bc8e8ec0d438e5f205a85 |
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font_01_sfnt_off000089d1.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x89D1 | 10284 bytes |
SHA-256: 34e499920a8d3b850521a559f833bebb5fa4d6c7c98ed2013681503fcff31b89 |
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