MALICIOUS
154
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF contains numerous links, including one to a known malicious redirector, suggesting a phishing or scam attempt. The document body, though heavily obfuscated, contains URLs that appear to be part of a link farm designed to improve search engine ranking for deceptive purposes. The ML classifier strongly indicates maliciousness, and the presence of embedded URLs points towards a spearphishing attachment attack vector.
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=reduce+pdf+file+size+apple+mac
- http://files.fathersweek.com/uploads/1/3/0/7/130739758/2486198.pdf
- http://files.freedomyoga.org/uploads/1/3/0/8/130813509/1826556.pdf
- http://files.thenestnevadacity.com/uploads/1/3/1/6/131637016/ff60a71f84.pdf
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- https://cdn.shopify.com/s/files/1/0432/0880/2466/files/45299404664.pdf
- https://cdn.shopify.com/s/files/1/0428/6716/3302/files/fiwibav.pdf
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/matam.pdf
- https://cdn.shopify.com/s/files/1/0429/6101/0842/files/34834156618.pdf
- https://cdn.shopify.com/s/files/1/0429/3391/1705/files/namp_4790._2c.pdf
- https://cdn.shopify.com/s/files/1/0434/7078/2614/files/zawufipetun.pdf
- https://cdn.shopify.com/s/files/1/0428/5746/3971/files/54073370203.pdf
- https://cdn.shopify.com/s/files/1/0429/1425/0905/files/20869215012.pdf
- https://cdn.shopify.com/s/files/1/0430/5652/9565/files/jab_comix_torrents.pdf
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/63016720996.pdf
- https://cdn.shopify.com/s/files/1/0432/2181/1364/files/86627427942.pdf
- https://cdn.shopify.com/s/files/1/0427/4244/8295/files/93534093247.pdf
- https://cdn.shopify.com/s/files/1/0430/3942/4669/files/95656680719.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_off00005b91.bin4ea45a9896e8c72bb091d97962da681e812f42af34fb07e34737e4deeb81be6b |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x5B91 | 5260 bytes |
font_01_sfnt_off00006d7d.bine21aebeb9110bfc9baaafff8db59c6d1a8d05539b706acc01491d612c0c486e6 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6D7D | 10436 bytes |
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