MALICIOUS
152
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious Link
The PDF contains numerous embedded links, many of which point to a link farm hosted on Shopify. One of the primary links, https://ttraff.ru/pify?keyword=chemical+bonding+practice+questions+pdf, is identified as a malicious redirector. The document body, though heavily obfuscated, contains text related to "chemical bonding practice questions pdf" and the malicious URL, suggesting a lure to a phishing or malware distribution site. The ML classifier strongly supports the malicious nature of this PDF.
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=chemical+bonding+practice+questions+pdf
- http://files.asimuk.com/uploads/1/3/1/4/131410370/ce1d8b.pdf
- http://files.southernmiddlemusic.com/uploads/1/3/2/7/132740923/6806647.pdf
- http://files.rattlerrepros.com/uploads/1/3/0/9/130969116/kavulojevoxozi.pdf
- http://files.riponcitybonfire.org/uploads/1/3/1/4/131437091/7748284.pdf
- https://cdn.shopify.com/s/files/1/0435/2779/8943/files/simokita_glory_days.pdf
- https://cdn.shopify.com/s/files/1/0437/8555/2030/files/jutifowetevamumixolibod.pdf
- https://cdn.shopify.com/s/files/1/0431/7085/7124/files/69699173167.pdf
- https://cdn.shopify.com/s/files/1/0431/9127/1586/files/kibajinetomezivozexakoxir.pdf
- https://cdn.shopify.com/s/files/1/0432/6578/6006/files/62096624960.pdf
- https://cdn.shopify.com/s/files/1/0433/4374/1083/files/xovegebiwukenupe.pdf
- https://cdn.shopify.com/s/files/1/0436/0667/1517/files/wadokowo.pdf
- https://cdn.shopify.com/s/files/1/0430/7006/2754/files/peselalavizosig.pdf
- https://cdn.shopify.com/s/files/1/0432/3016/7203/files/98961682583.pdf
- https://cdn.shopify.com/s/files/1/0429/5534/1977/files/gigaguzuwer.pdf
- https://cdn.shopify.com/s/files/1/0434/6665/3858/files/winchester_model_1200.pdf
- https://cdn.shopify.com/s/files/1/0433/3928/4645/files/morijusosajajobop.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_off00009194.binfe4364338cfd41ec33093783628e4a71bf8c54a6c5c95d4b292d3f70ceb3c853 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x9194 | 5740 bytes |
font_01_sfnt_off0000a4d9.bin1ad96ed439b1a2d90a143fbb6d2cb9a9661a4514930c362dcf5fdd148ecc07ab |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xA4D9 | 10464 bytes |
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