MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
The PDF document was flagged by multiple critical heuristics for containing a malicious redirector link and a link farm. The ML classifier also strongly indicated maliciousness. The primary malicious IOC is the redirector URL, which is likely used to lure users to a compromised or malicious site. No scripts were extracted, and the document body was unreadable binary data.
Machine Learning
- Nyx PDF Classifier malicious score 1.0000
Heuristics 5
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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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Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINKPDF embeds an image with little or no body text and a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the 'free ebook / solution-manual / document download' phishing family that ranks for natural-language search queries and routes the user into a payload/redirect chain. The PDF carries no exploit; the risk is the linked destination. Flagged structurally (image lure + SEO redirector) so it does not depend on a ClamAV/ML signature, and regardless of how many filler text pages the lure carries.
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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/wix?keyword=%25D9%2585%25D9%2584%25D8%25A7%25D8%25A8%25D8%25B3+%25D9%2587%25D9%2586%25D8%25AF%25D9%258A%25D8%25A9+%25D8%25B9%25D9%2584%25D9%2589+%25D8%25A7%25D9%2584%25D8%25A5%25D9%2586%25D8%25AA%25D8%25B1%25D9%2586%25D8%25AA+%25D8%25AA%25D8%25AA%25D8%25B3%25D9%2588%25D9%2582+%25D9%2584%25D9%2584%25D8%25B1%25D8%25AC%25D8%25A7 In PDF document text
- https://ttraff.ru/wix?keyword=%25D9%2585%25D9%2584%25D8%25A7%25D8%25A8%25D8%25B3+%25D9%2587%25D9%2586%25D8%25AF%25D9%258A%25D8%25A9+%25D8%25B9%25D9%2584%25D9%2589+%25D8%25A7%25D9%2584%25D8%25A5%25D9%2586%25D8%25AA%25D8%25B1%25D9%2586%25D8%25AA+%25D8%25AA%25D8%25AA%25D8%25B3%25D9%2588%25D9%2582+%25D9In PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- https://cdn.shopify.com/s/files/1/0438/2910/0701/files/miporilanojo.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/8121/1810/files/2445146957.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/94662163826.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/5286/7477/files/audi_a6_c6_repair_manual_download.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/zenafepejeviwasi.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/7437/9158/files/30760112309.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/1962/2808/files/lufurow.pdfIn PDF document text
- https://static.usrfiles.com/ugd/fa6f14_d01aec80920e477bb933f8c4879588e3.pdfIn PDF document text
- https://static.usrfiles.com/ugd/b8c837_806dfe3ea78b417c8dfa9f9b6c3a9b6b.pdfIn PDF document text
- https://static.usrfiles.com/ugd/b8c837_440639ac48aa415889b8eed6d5e7fc38.pdfIn PDF document text
- https://static.usrfiles.com/ugd/b8c837_b2221ff361a9486cbb9e7216a1bcb6bd.pdfIn PDF document text
- https://static.usrfiles.com/ugd/3aee12_44fe1032b1824eb78fa46e2d1be21bbc.pdfIn PDF document text
- http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
- http://purl.org/dc/elements/1.1/In PDF document text
- http://ns.adobe.com/pdf/1.3/In PDF document text
- http://ns.adobe.com/xap/1.0/In PDF document text
- http://ns.adobe.com/xap/1.0/mm/In PDF document text
- http://ns.adobe.com/xap/1.0/rights/In PDF document text
- http://dejavu.sourceforge.netIn PDF document text
- http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text
- http://scripts.sil.org/OFLIn PDF document text
Extracted artifacts 4
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
stream_006_off0000d33b.bin |
decompressed-pdf-stream | PDF FlateDecoded stream at offset 0xD33B | 31940 bytes |
SHA-256: 48cf197d9844a69d3af6fb983792f137e7c7ff9bdb9137b3c04b194c1b8c38f0 |
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font_00_sfnt_off0000887b.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x887B | 4068 bytes |
SHA-256: 88b4df287869f8a87cfca73fa70e055f9c8c0ff4f418bc447a4fa7089e3d2d74 |
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font_01_sfnt_off0000965a.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x965A | 19100 bytes |
SHA-256: e39a6a535b4c546b12f700c7d294b10f58e9ed25e744c982b618cefda7654c95 |
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font_02_sfnt_off0000b527.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB527 | 8780 bytes |
SHA-256: 08d20dcf1e480ed450a96164ff86eca22cbf41772a6dd7a16ca2c004243b83e0 |
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