MALICIOUS
154
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains a large number of embedded URLs, with one identified as a malicious redirector. The heuristic 'PDF_SEO_LINK_FARM' indicates a mass of external PDF links, suggesting a tactic to artificially inflate search engine rankings or distribute malicious content. The ML classifier strongly flagged this PDF as malicious, supporting the assessment of a malicious link farm.
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.cc/wix?keyword=keep+you+on+my+side+chvrches
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- https://static.usrfiles.com/ugd/cf14a4_f1d3c871bba446b6897d689631e68499.pdf
- https://static.usrfiles.com/ugd/1cc7e8_f232501f32c94872ab9c7299d235429c.pdf
- https://static.usrfiles.com/ugd/d7ba0f_2a3f7a11aa8249c881a080f88e1b5df9.pdf
- https://static.usrfiles.com/ugd/d63aaf_3253ab482e55466a89b782921f0600af.pdf
- https://static.usrfiles.com/ugd/c1de29_6a8f10671f2146648b767f76bfaa94c2.pdf
- https://cdn.shopify.com/s/files/1/0436/9930/6649/files/ccna_routing_and_switching_200_125.pdf
- https://cdn.shopify.com/s/files/1/0435/8628/9832/files/obusforme_pillow_costco.pdf
- https://static.usrfiles.com/ugd/b8c837_743a26bed5e847c9bbbd96eeb19aa4b5.pdf
- https://static.usrfiles.com/ugd/8c0e65_fcb18f0dc3f644c585230f9da07c8920.pdf
- https://static.usrfiles.com/ugd/b8c837_c2787976b83f4da9942292be51d2a524.pdf
- https://cdn.shopify.com/s/files/1/0431/5545/6164/files/3691024014.pdf
- https://cdn.shopify.com/s/files/1/0433/3164/9689/files/calendario_mensual_2020_para_imprimir_gratis.pdf
- https://cdn.shopify.com/s/files/1/0437/6359/7466/files/neufert_architecture_book.pdf
- https://cdn.shopify.com/s/files/1/0428/9154/2681/files/jofawolewizom.pdf
- https://cdn.shopify.com/s/files/1/0432/2476/0488/files/acceptance_sampling_in_quality_control_schilling.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/
- http://scripts.sil.org/OFL
Extracted artifacts 2
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off000057a7.bin4cf974d53bdaf8adfb5bdb176f0daa075d5868402ca37bbe8ee15a0e3b18e37a |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x57A7 | 5200 bytes |
font_01_sfnt_off00006937.bina2f6c32f5ead81d1aa06e039fd7762239b1933a556926cc8414ac6526806f640 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6937 | 10700 bytes |
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