MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious Link
The PDF file was flagged as malicious by an ML classifier and contains a critical heuristic indicating it links to known malicious redirector infrastructure. It also exhibits characteristics of a PDF SEO link farm, embedding numerous external links, with the primary malicious URL being https://ttraff.cc/pify?keyword=definition+of+ms+excel+2020+pdf. The document body contains garbled text, suggesting it's not intended for direct user consumption but rather as a vehicle for these links.
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=definition+of+ms+excel+2020+pdf In PDF document text
- http://files.torahfun.us/uploads/1/3/1/6/131636956/3d4122878.pdfIn PDF document text
- http://files.shawlegalservices.com/uploads/1/3/2/7/132741029/jaxijasizu-miromukeveda-tidefako-ladisa.pdfIn PDF document text
- http://files.rockymountainnaturalists.org/uploads/1/3/1/3/131383791/70c110913.pdfIn PDF document text
- http://zapon.doggieandme.com/uploads/1/3/1/4/131452977/midilesogof-videfetufo-bevuvasinadazi-rinaxomuso.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/1/0434/5282/5750/files/wevurejis.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/0046/2503/files/41857312083.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/lewajoranuputefikilos.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0440/8508/4310/files/37770195520.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0447/2838/5690/files/59722348479.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/8851/9074/files/mit_press_algorithms.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/4417/5013/files/munesoxokonovosufol.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0448/2465/8082/files/22295069495.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/1806/7866/files/2662867056.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/3886/6593/files/the_battle_of_agincourt_sources_and_interpretations.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/2558/7609/files/76347792144.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/3729/4754/files/59674286400.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/9094/2888/files/gikofibatimipizoj.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/5865/8456/files/namatevob.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_off00008f1b.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x8F1B | 5336 bytes |
SHA-256: 45cd5ca07085464a4ac95a9b1840df95818c05df6fbee09c5dd7014185369e1b |
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font_01_sfnt_off0000a143.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xA143 | 10608 bytes |
SHA-256: a80e0975732943431ad4db5d37538a4f6914e18c999bd65448ec0be3e5cf4e58 |
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