MALICIOUS
202
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
T1203 Exploitation for Client Execution
The PDF contains multiple heuristics indicating malicious redirector links and a link farm, suggesting a phishing or malware distribution attempt. The embedded document body text, though corrupted, contains a URL that matches the redirector found in the heuristics. The ML classifier also strongly flagged this PDF as malicious.
Machine Learning
- Nyx PDF Classifier malicious score 1.0000
Heuristics 6
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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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Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINKPDF embeds an image with little or no body text and a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the 'free ebook / solution-manual / document download' phishing family that ranks for natural-language search queries and routes the user into a payload/redirect chain. The PDF carries no exploit; the risk is the linked destination. Flagged structurally (image lure + SEO redirector) so it does not depend on a ClamAV/ML signature, and regardless of how many filler text pages the lure carries.
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Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTONDocument contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
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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=coolie+full+movie+free In PDF document text
- http://files.tylergulden.com/uploads/1/3/2/8/132816096/rabuzo.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/0240/3750/files/agm_service_mac.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/4435/5739/files/jutazexonulaf.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/2176/2723/files/10_000_reasons_chords.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/3124/8541/files/12736516591.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/7927/0561/files/.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0452/4458/0002/files/certificado_medico_bolivia.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/0641/8331/files/upcoming_bank_exams_2020_20_full_list.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/7918/8118/files/kill_all_node_processes.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/1442/1653/files/biofeedback_definition.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/4248/7963/files/zadalorikinimupotategu.pdfIn PDF document text
- http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
- http://purl.org/dc/elements/1.1/In PDF document text
- http://ns.adobe.com/pdf/1.3/In PDF document text
- http://ns.adobe.com/xap/1.0/In PDF document text
- http://ns.adobe.com/xap/1.0/mm/In PDF document text
- http://ns.adobe.com/xap/1.0/rights/In PDF document text
- http://scripts.sil.org/OFLIn PDF document text
- http://dejavu.sourceforge.netIn PDF document text
- http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text
Extracted artifacts 4
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off00008de0.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x8DE0 | 2988 bytes |
SHA-256: ff7043a75879f0c79b51f0b03cdb08fb8d78550efccea71092d33c2cc21f6589 |
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font_01_sfnt_off00009893.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x9893 | 4492 bytes |
SHA-256: 544363fd1625e857b880816092174556abc171efffffb4f7080f5c02215a9ece |
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font_02_sfnt_off0000a7c8.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xA7C8 | 14088 bytes |
SHA-256: 54c88ec55dcb2537955914982610897489272054ea62b36039eae87f40413afd |
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font_03_sfnt_off0000d167.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD167 | 16028 bytes |
SHA-256: 8345d1cc2b6b461b856d0454e2cf67edf5851291b6d0ebf21a7da0c9813a2b7f |
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