MALICIOUS
152
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
The PDF contains numerous links, including one pointing to a known malicious redirector (ttraff.ru). The document body, though heavily obfuscated, contains references to academic topics and URLs, suggesting a lure to external malicious content. The ML classifier strongly flagged this PDF as malicious, and the presence of a link farm further supports a malicious intent, likely for phishing or malware delivery.
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=de+broglie+wavelength+problems+pdf
- http://files.lisaannschraffasantin.com/uploads/1/3/2/7/132710763/rasujivozug.pdf
- http://files.ukerepublic.com/uploads/1/3/0/7/130776504/86c26f600d135b.pdf
- http://files.sukhi.no/uploads/1/3/2/7/132712115/9866922.pdf
- http://files.jetixrestored.com/uploads/1/3/0/7/130775747/83416.pdf
- https://cdn.shopify.com/s/files/1/0431/3654/9018/files/36615865427.pdf
- https://cdn.shopify.com/s/files/1/0430/6177/2442/files/22158810425.pdf
- https://cdn.shopify.com/s/files/1/0429/0589/5075/files/48058578793.pdf
- https://cdn.shopify.com/s/files/1/0430/9988/1639/files/derby_owners_club.pdf
- https://cdn.shopify.com/s/files/1/0434/1386/4604/files/990922074.pdf
- https://cdn.shopify.com/s/files/1/0432/1555/2674/files/74905387566.pdf
- https://cdn.shopify.com/s/files/1/0431/9028/8535/files/tusamaze.pdf
- https://cdn.shopify.com/s/files/1/0438/6933/9808/files/bebelezewetuwixategaxa.pdf
- https://cdn.shopify.com/s/files/1/0431/1020/3556/files/72549256954.pdf
- https://cdn.shopify.com/s/files/1/0433/4272/5275/files/51888847193.pdf
- https://cdn.shopify.com/s/files/1/0431/6394/3067/files/convert_m4a_to_wav.pdf
- https://cdn.shopify.com/s/files/1/0432/0450/9853/files/80715128979.pdf
- https://cdn.shopify.com/s/files/1/0431/8858/4605/files/51437297761.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_off000069e3.binf4f93927835fc16f3f0e6d665f5262653f3af59af65dd370999c66ab2de68098 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x69E3 | 5744 bytes |
font_01_sfnt_off00007d5a.binec35728eedca9d17658b1f81bf9f009a966265c2cf51a5f59189b097dfcb32b4 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7D5A | 14476 bytes |
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