MALICIOUS
152
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious Link
The PDF contains embedded links that redirect to a known malicious URL, identified by the PDF_MALICIOUS_REDIRECTOR_LINK heuristic. The document body, though heavily obfuscated, contains text related to 'basic guitar lessons for beginners pdf free download' and the malicious URL, suggesting a lure to download further malicious content. The ML classifier also strongly indicated maliciousness.
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=basic+guitar+lessons+for+beginners+pdf+free+download
- http://sinukunik.thegreatwines.com/uploads/1/3/1/8/131857631/6819085.pdf
- http://files.awesomepawsacademy.com/uploads/1/3/0/9/130969003/d6be4b09c.pdf
- http://files.silverstreetlutheranchurch.com/uploads/1/3/1/4/131437576/9591de4f.pdf
- https://cdn.shopify.com/s/files/1/0430/0718/0954/files/97750794239.pdf
- https://cdn.shopify.com/s/files/1/0430/8631/5684/files/nodud.pdf
- https://cdn.shopify.com/s/files/1/0433/0009/4112/files/30016044535.pdf
- https://cdn.shopify.com/s/files/1/0432/7689/4372/files/85072227409.pdf
- https://cdn.shopify.com/s/files/1/0431/3314/1146/files/rileputef.pdf
- https://cdn.shopify.com/s/files/1/0429/7362/6524/files/25031265921.pdf
- https://cdn.shopify.com/s/files/1/0431/0741/8273/files/lion_s_arch_exterminator.pdf
- https://cdn.shopify.com/s/files/1/0428/3603/3695/files/94163846721.pdf
- https://cdn.shopify.com/s/files/1/0428/5435/1015/files/dugamos.pdf
- https://cdn.shopify.com/s/files/1/0435/5771/6117/files/rolijajonowuz.pdf
- https://cdn.shopify.com/s/files/1/0431/4939/4080/files/43374992419.pdf
- https://cdn.shopify.com/s/files/1/0431/7921/2959/files/dezosebobugi.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_off000066b9.bin8b4192c024cf08c78af2d1d9543c080827ad5a1e352091872fe7938b3446a2cf |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x66B9 | 5604 bytes |
font_01_sfnt_off000079e4.bin72d91c0c7b07aa2a986ded61cc80eafda9f481698196d5339a6f429378256617 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x79E4 | 10204 bytes |
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