MALICIOUS
154
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious Link
The PDF contains a mass external link farm, with one URL pointing to a known malicious redirector. The document body, though heavily obfuscated, contains text that appears to be a lure for downloading 'Acronis iso'. The ML classifier strongly indicates maliciousness. The primary attack vector is likely a malicious link embedded within the PDF, leading to a redirector that likely serves further malicious content.
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/wix?keyword=acronis+iso+%25D1%2581%25D0%25BA%25D0%25B0%25D1%2587%25D0%25B0%25D1%2582%25D1%258C
- https://static.usrfiles.com/ugd/b8c837_bffe960db9a440b49904ed44d1a28be5.pdf
- https://static.usrfiles.com/ugd/f103bb_a4b161ad79934886949fcd752c0382bd.pdf
- https://static.usrfiles.com/ugd/3aca14_a5fc243373ea4060b61f50b9b936eea9.pdf
- https://static.usrfiles.com/ugd/6f58fb_dc742c2bc90442a7a6775c83148f3e2d.pdf
- https://static.usrfiles.com/ugd/909b15_8ea56548d634464fa1222ce14a6bf20e.pdf
- https://static.usrfiles.com/ugd/b8c837_d0183fa233b04eaba1a5c57c03c6be3f.pdf
- https://static.usrfiles.com/ugd/9e41f0_e31e8576f6ba47e5b0a2a7500ebe5ca0.pdf
- https://static.usrfiles.com/ugd/b8c837_8ccab66bbe3a4a7c8b252fca15e89c60.pdf
- https://cdn.shopify.com/s/files/1/0434/5469/3541/files/44942549141.pdf
- https://cdn.shopify.com/s/files/1/0440/8092/2789/files/paganini_caprice_24_guitar.pdf
- https://cdn.shopify.com/s/files/1/0431/6931/7013/files/tatanopidinatotelufur.pdf
- https://cdn.shopify.com/s/files/1/0460/6518/9019/files/autozone_western_boulevard.pdf
- https://cdn.shopify.com/s/files/1/0438/9833/9496/files/69860649547.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_off00005784.bineb4581a6ecb0f495d6d4b7a938dd6f25f5072badfd74ba098ef2c10107115718 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x5784 | 5168 bytes |
font_01_sfnt_off000068e4.binef2c9e7750663ed5109f9dd9ff496702891b90b0faeb9fa98975ece3df3e9585 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x68E4 | 15088 bytes |
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