MALICIOUS
154
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious Link
The PDF file contains embedded links, with one pointing to a known malicious redirector. The document body, though heavily obfuscated, suggests a lure related to 'Krusty krab theme flute sheet music'. The presence of numerous external PDF links further indicates a link farm or redirection strategy. The ML classifier strongly flagged this PDF as malicious.
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=krusty+krab+theme+flute+sheet+music
- http://files.eusebiachurch.com/uploads/1/3/1/6/131636855/7678664.pdf
- http://files.nickelcityaussies.com/uploads/1/3/1/0/131070912/f52f51.pdf
- http://files.endymienne.com/uploads/1/3/1/4/131437523/8382578c.pdf
- http://files.crownlifeseminars.com/uploads/1/3/2/7/132710669/fizezad-ronux.pdf
- http://files.aerocustoms.com/uploads/1/3/1/3/131383247/8ad2f3b610b.pdf
- https://cdn.shopify.com/s/files/1/0429/5802/8959/files/tijejakanegex.pdf
- https://cdn.shopify.com/s/files/1/0432/0428/0481/files/savoliwowi.pdf
- https://cdn.shopify.com/s/files/1/0427/8432/5798/files/gawafegujogejob.pdf
- https://cdn.shopify.com/s/files/1/0430/9542/5191/files/58394549262.pdf
- https://cdn.shopify.com/s/files/1/0434/8290/6789/files/48639245472.pdf
- https://cdn.shopify.com/s/files/1/0435/0446/8134/files/90147402110.pdf
- https://cdn.shopify.com/s/files/1/0437/0753/1432/files/60268402288.pdf
- https://cdn.shopify.com/s/files/1/0428/8777/4367/files/wifaranadirijedixozejamu.pdf
- https://cdn.shopify.com/s/files/1/0439/4775/3640/files/46642099364.pdf
- https://cdn.shopify.com/s/files/1/0433/9990/5429/files/84712095246.pdf
- https://cdn.shopify.com/s/files/1/0430/1137/5267/files/40633131135.pdf
- https://cdn.shopify.com/s/files/1/0433/1218/5499/files/20474615007.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_off000128ab.bin7f469e3523777448036d7952c4da08bc11e3f5f0fa0d722cbff08c855c38393b |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x128AB | 5064 bytes |
font_01_sfnt_off000139e9.bincffb9bcbf1f2d5b3ac176955da96fe407276e31b24711e9691b73498e7fd1fb9 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x139E9 | 10856 bytes |
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