MALICIOUS
152
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious Link
The PDF contains a large number of embedded links, many of which are SEO-optimized and point to external PDF files. One critical heuristic identified a link to a known malicious redirector infrastructure at 'https://ttraff.cc/pify?keyword=curriculum+vitae+formato+europeo+2018'. The ML classifier also strongly indicated maliciousness. The document body, though heavily obfuscated, contains references to 'curriculum vitae' and the redirector URL, suggesting a lure to disguise malicious link aggregation.
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=curriculum+vitae+formato+europeo+2018
- http://files.kaixuanengrg.com/uploads/1/3/1/8/131871659/1763368.pdf
- http://gifum.medinfodoc.net/uploads/1/3/2/7/132710567/xasusepi.pdf
- https://cdn.shopify.com/s/files/1/0435/0060/1504/files/new_york_state_pistol_permit_application.pdf
- https://cdn.shopify.com/s/files/1/0434/8638/0189/files/79076648753.pdf
- https://cdn.shopify.com/s/files/1/0434/4931/9577/files/kavuxoj.pdf
- https://cdn.shopify.com/s/files/1/0433/1791/9912/files/57135982020.pdf
- https://cdn.shopify.com/s/files/1/0439/2773/2379/files/above_top_secret_timothy_good.pdf
- https://cdn.shopify.com/s/files/1/0429/6327/1833/files/birkenhead_sixth_form_college_term_dates.pdf
- https://cdn.shopify.com/s/files/1/0431/6987/4080/files/cashless_transaction_project.pdf
- https://cdn.shopify.com/s/files/1/0433/2866/7798/files/iterate_hashmap_in_java.pdf
- https://cdn.shopify.com/s/files/1/0430/4253/7629/files/10504593204.pdf
- https://cdn.shopify.com/s/files/1/0438/9378/4728/files/37158578000.pdf
- https://cdn.shopify.com/s/files/1/0435/2340/8032/files/66123989876.pdf
- https://cdn.shopify.com/s/files/1/0433/2853/6734/files/magazine_template_psd_free.pdf
- https://cdn.shopify.com/s/files/1/0432/0670/5316/files/93005058122.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_off0000865c.bin67eb9ee450ea9c460e099bce8f2d3c8962f102d7f608b185234da8bdf34f3f36 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x865C | 5468 bytes |
font_01_sfnt_off000098e7.bindc96432404fc339445cef2ba77a96b0e8b0309b75c7d727d83644fb1492256e3 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x98E7 | 12704 bytes |
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