MALICIOUS
154
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF contains numerous embedded links, many of which point to a link farm designed to host malicious content. One critical heuristic identified a link to a known malicious redirector, ttraff.ru, which is presented to the user as a 'California DMV bill of sale PDF'. The ML classifier strongly supports the malicious nature of this PDF. No scripts were extracted, but the presence of numerous external links suggests a downloader or redirection attack.
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=california+dmv+bill+of+sale+pdf
- http://files.theimo.org/uploads/1/3/0/7/130738822/zifob_mekilo.pdf
- http://files.thewaveindustries.com/uploads/1/3/1/4/131413837/a1b902b2.pdf
- http://files.hagiazo.net/uploads/1/3/1/3/131384025/darifi.pdf
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- https://cdn.shopify.com/s/files/1/0430/7727/1713/files/43785673366.pdf
- https://cdn.shopify.com/s/files/1/0432/2390/8520/files/newubud.pdf
- https://cdn.shopify.com/s/files/1/0429/9050/2051/files/48459695133.pdf
- https://cdn.shopify.com/s/files/1/0437/3594/1274/files/zawojexuxepin.pdf
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/89965927340.pdf
- https://cdn.shopify.com/s/files/1/0427/9681/0396/files/64417326243.pdf
- https://cdn.shopify.com/s/files/1/0427/5650/5756/files/28829151109.pdf
- https://cdn.shopify.com/s/files/1/0433/5537/3720/files/54741532090.pdf
- https://cdn.shopify.com/s/files/1/0428/8223/6583/files/99427759430.pdf
- https://cdn.shopify.com/s/files/1/0435/3789/1482/files/javascript_foreach_break.pdf
- https://cdn.shopify.com/s/files/1/0430/7235/6514/files/15403677984.pdf
- https://cdn.shopify.com/s/files/1/0437/2817/5255/files/5513413903.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_off00005d36.bin74e2a7300c76c45de8daead36f2aff8d6194efbca3509dda526364664c13d64c |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x5D36 | 5292 bytes |
font_01_sfnt_off00006f22.binca0d2f819e0f37f1039e146f8f068684b4e5375cea731a163e033815df792497 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6F22 | 10116 bytes |
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