MALICIOUS
152
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 Shopify domains hosting other PDFs, creating a link farm. One critical heuristic identified a redirector link to 'ttraff.ru' disguised as a search result for 'ergonomics book pdf download'. This suggests a SEO poisoning or link farm attack designed to lure users to malicious sites. No scripts were extracted from this sample.
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=ergonomics+book+pdf+download
- http://files.floridaacademyleague.com/uploads/1/3/1/6/131606362/9876262.pdf
- http://files.enigmahealth.com/uploads/1/3/0/7/130775644/7325090.pdf
- http://files.sjdmortgage.com/uploads/1/3/0/7/130739144/7166c9d4fd3a.pdf
- https://cdn.shopify.com/s/files/1/0433/4216/8218/files/timinetuwufe.pdf
- https://cdn.shopify.com/s/files/1/0429/4164/4963/files/26541095203.pdf
- https://cdn.shopify.com/s/files/1/0431/5119/6314/files/3299520104.pdf
- https://cdn.shopify.com/s/files/1/0438/6878/2757/files/58395455613.pdf
- https://cdn.shopify.com/s/files/1/0431/5430/9274/files/dusozaj.pdf
- https://cdn.shopify.com/s/files/1/0429/7592/0282/files/kefomajanabobakalejir.pdf
- https://cdn.shopify.com/s/files/1/0433/7300/2902/files/vaxivoderikit.pdf
- https://cdn.shopify.com/s/files/1/0430/7664/9124/files/prentice_hall_chemistry_2008.pdf
- https://cdn.shopify.com/s/files/1/0437/1644/4315/files/ielts_vocabulary_list_with_meaning.pdf
- https://cdn.shopify.com/s/files/1/0428/7250/4483/files/tenesaza.pdf
- https://cdn.shopify.com/s/files/1/0431/3445/1874/files/lofuz.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_off00009cb4.bin02b53396d62f357389fc94d966e0171905199681e5ce6652b5271c4c8712a3e6 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x9CB4 | 5728 bytes |
font_01_sfnt_off0000b03d.bin1b3d013631484411ef0d5564e615d73d6c81ae042a4fff5ccc1c81ea6bedd813 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB03D | 14824 bytes |
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