MALICIOUS
154
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains embedded links that lead to a known malicious redirector infrastructure, specifically `https://ttraff.ru/pify?keyword=ansys+14.+5+apdl+tutorial+pdf`. The document body, though heavily obfuscated, also contains this URL, suggesting an attempt to lure users to malicious content. The presence of numerous other PDF links further indicates a link farm or SEO poisoning tactic.
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=ansys+14.+5+apdl+tutorial+pdf
- http://files.whiteriverlodge62.org/uploads/1/3/2/6/132695701/sadajovefozaru_penokaguro_ligexuki_zetez.pdf
- http://files.lashsanctuary.com.au/uploads/1/3/1/0/131070846/bcb32d7a0e2db.pdf
- http://files.byrdcenter.org/uploads/1/3/0/7/130775229/9b2f31c911cc52c.pdf
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- https://cdn.shopify.com/s/files/1/0437/5206/3125/files/68046993683.pdf
- https://cdn.shopify.com/s/files/1/0435/2717/6344/files/rakisegog.pdf
- https://cdn.shopify.com/s/files/1/0435/8111/2483/files/the_power_of_limits.pdf
- https://cdn.shopify.com/s/files/1/0435/8576/5535/files/71586888404.pdf
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/ridikesomuzumiburowafex.pdf
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/tokon.pdf
- https://cdn.shopify.com/s/files/1/0432/3858/8584/files/fafemibiremirukuv.pdf
- https://cdn.shopify.com/s/files/1/0437/0087/9510/files/46950557996.pdf
- https://cdn.shopify.com/s/files/1/0429/2853/7753/files/82752612583.pdf
- https://cdn.shopify.com/s/files/1/0431/7341/3032/files/88690661277.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_off0000680c.bin81ec8aaaba4e0e42955a5532f2262a8d23fa0a8fb7f01f1db10a8abf19cf945a |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x680C | 5424 bytes |
font_01_sfnt_off00007aaa.bin7754956b38dc51e0a85801e5094c4dfbe593a14ad15217bd4f3e018ae148576d |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7AAA | 9908 bytes |
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