MALICIOUS
152
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious Link
The PDF file exhibits characteristics of a link farm, embedding numerous external links. One prominent link, 'https://ttraff.ru/pify?keyword=study+spanish+comparisons+of+equality+answers', is flagged as a malicious redirector. The ML classifier also strongly indicated maliciousness. The document body, though heavily obfuscated, contains references to URLs, reinforcing the link-based attack vector.
Machine Learning
- Nyx PDF Classifier malicious score 1.0000
Heuristics 4
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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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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.ru/pify?keyword=study+spanish+comparisons+of+equality+answers
- http://files.iamwhatiart.net/uploads/1/3/0/7/130776445/1360335.pdf
- https://cdn.shopify.com/s/files/1/0432/4245/5195/files/wuteget.pdf
- https://cdn.shopify.com/s/files/1/0438/2579/1138/files/senixibosemedemirirupon.pdf
- https://cdn.shopify.com/s/files/1/0435/8933/7256/files/6597661143.pdf
- https://cdn.shopify.com/s/files/1/0461/6405/0083/files/chest_guidelines_2016_hit.pdf
- https://cdn.shopify.com/s/files/1/0431/2170/5124/files/80175285657.pdf
- https://cdn.shopify.com/s/files/1/0428/1945/3095/files/15709077326.pdf
- https://cdn.shopify.com/s/files/1/0434/0056/0803/files/19773411084.pdf
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/69892687871.pdf
- https://cdn.shopify.com/s/files/1/0434/1088/2727/files/dajekagifamugom.pdf
- https://cdn.shopify.com/s/files/1/0433/4531/3941/files/simple_html_game_code.pdf
- https://cdn.shopify.com/s/files/1/0434/2838/0839/files/rejikisewojew.pdf
- https://cdn.shopify.com/s/files/1/0433/8951/7978/files/61225613969.pdf
- https://cdn.shopify.com/s/files/1/0439/4074/1275/files/57925500149.pdf
- http://www.w3.org/1999/02/22-rdf-syntax-ns#
- http://purl.org/dc/elements/1.1/
- http://ns.adobe.com/pdf/1.3/
- http://ns.adobe.com/xap/1.0/
- http://ns.adobe.com/xap/1.0/mm/
- http://ns.adobe.com/xap/1.0/rights/
Extracted artifacts 2
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000499c.bin22703f95daff0220de368f15b1c313faaee27d5a288ad70091c194339adc200b |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x499C | 5816 bytes |
font_01_sfnt_off00005d4c.binbbfdcaef8412af3741745bf7a1eb29f5651d7f9c314ca9fb0b4e5268a26755a1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x5D4C | 9808 bytes |
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