MALICIOUS
154
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF contains numerous embedded links, with at least one pointing to a known malicious redirector. The document body, though heavily obfuscated, suggests a lure related to an 'artist biography pdf'. The presence of many external PDF links, including benign ones on Shopify, indicates a link farm strategy, likely to improve SEO for malicious content or to obscure the true destination. The ML classifier strongly flagged this PDF as malicious.
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=artist+biography+pdf
- http://files.aspendivas.com/uploads/1/3/1/4/131407388/6e884.pdf
- http://files.tcmphoto.com/uploads/1/3/2/7/132740873/regaputukem-dopura-fofojapozigu-narekaxapipiwe.pdf
- http://files.htschool.net/uploads/1/3/1/1/131164479/7806161.pdf
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- https://cdn.shopify.com/s/files/1/0431/8402/9854/files/togapulimofosasomel.pdf
- https://cdn.shopify.com/s/files/1/0431/1020/3556/files/soradediwusezap.pdf
- https://cdn.shopify.com/s/files/1/0435/8491/3563/files/58434727241.pdf
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/vuxopikuxoxixu.pdf
- https://cdn.shopify.com/s/files/1/0427/4041/6678/files/jilupifolivotomuwufadov.pdf
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/pejuzesuloroxutebed.pdf
- https://cdn.shopify.com/s/files/1/0428/1466/8959/files/4765098842.pdf
- https://cdn.shopify.com/s/files/1/0437/2057/3082/files/rinupegoxuf.pdf
- https://cdn.shopify.com/s/files/1/0430/7353/6149/files/woxusemazugo.pdf
- https://cdn.shopify.com/s/files/1/0431/9143/5422/files/dosakijirabavomezazu.pdf
- https://cdn.shopify.com/s/files/1/0433/4046/4281/files/76043908900.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_off00007474.bin5f9e805b45b20903a2118568520d207160c4ecb9873da1b99dff4a67764a8068 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7474 | 5068 bytes |
font_01_sfnt_off000085c4.bin516e19a6cc8493156f7d73fce0fe1fa3b4ba6702bd5e049da2569829037bb82b |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x85C4 | 10052 bytes |
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