MALICIOUS
152
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious Link
The PDF contains a prominent link to a known malicious redirector, ttraff.cc, disguised as a public hearing request. This link is intended to lead the user to a malicious site. The document also contains a large number of embedded URLs, many pointing to Shopify, which is characteristic of SEO link farm abuse to obscure malicious intent. The ML classifier strongly indicated maliciousness.
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.cc/pify?keyword=requerimento+audiencia+publica+reforma+da+previdencia
- http://files.sheplayswithmud.com/uploads/1/3/0/7/130776276/xorunurew_warem.pdf
- http://files.mcclellandtownpresbyterian.org/uploads/1/3/1/4/131482832/4805624.pdf
- https://cdn.shopify.com/s/files/1/0443/8661/5462/files/logolokivav.pdf
- https://cdn.shopify.com/s/files/1/0435/7314/9859/files/applied_drilling_engineering_solution_manual.pdf
- https://cdn.shopify.com/s/files/1/0430/0144/6551/files/pedepubatijirusisu.pdf
- https://cdn.shopify.com/s/files/1/0430/9748/9572/files/future_self_journaling_holistic_psychologist.pdf
- https://cdn.shopify.com/s/files/1/0447/5338/7674/files/university_of_toronto_campus_map.pdf
- https://cdn.shopify.com/s/files/1/0429/8155/6375/files/56643162935.pdf
- https://cdn.shopify.com/s/files/1/0436/5156/3670/files/civ_5_civilization_guide.pdf
- https://cdn.shopify.com/s/files/1/0427/6781/0726/files/mofagemovipoxorurawe.pdf
- https://cdn.shopify.com/s/files/1/0436/0264/1059/files/447836107.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_off00005dfd.bin4a293281d5a594b1c2e91cfe7a175681aaee00131e565406fe92a3ef7890a612 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x5DFD | 5456 bytes |
font_01_sfnt_off00007078.bind877dcf874943cb0544053893cc59fa599812c0b6f8cd240f310f92f74fa6d79 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7078 | 12080 bytes |
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