MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
The PDF contains a link to a redirector URL, which is a common technique for delivering malicious payloads. The document body, though heavily garbled, contains text that appears to be a lure for 'Android studio shortcuts list for mac'. The PDF also contains a mass external PDF link farm, suggesting a SEO poisoning or link farm attack. The ML classifier strongly flagged this PDF as malicious.
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.link/wix?keyword=android+studio+shortcuts+list+for+mac In PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- https://static.usrfiles.com/ugd/575fb0_ef4dc0ce23ce43f68a9d9bdd654a1bbc.pdfIn PDF document text
- https://static.usrfiles.com/ugd/db1da1_3c4b77a0363a45f5b79a37b493e265d5.pdfIn PDF document text
- https://static.usrfiles.com/ugd/738632_a28c5012184e46268e033ad6cf6d4887.pdfIn PDF document text
- https://static.usrfiles.com/ugd/b8c837_1c8ef90836e44f9cbfe21057f7cca750.pdfIn PDF document text
- https://static.usrfiles.com/ugd/3be3a7_74b3f3d863c34db881d870eaabff7463.pdfIn PDF document text
- https://static.usrfiles.com/ugd/314c35_38778bc76aa243798286b2276c0c7e19.pdfIn PDF document text
- https://static.usrfiles.com/ugd/d94ae5_ff50415320c741b8b753faa8ba093260.pdfIn PDF document text
- https://static.usrfiles.com/ugd/b463f2_a82085f769544126aa812030d2e81d63.pdfIn PDF document text
- https://static.usrfiles.com/ugd/36f25b_0c70c8dcd2c14eaeb3408a46a2502d4d.pdfIn PDF document text
- https://static.usrfiles.com/ugd/ce4b7c_e53b4d30fc7740a4adbea3fcf0d3252c.pdfIn PDF document text
- https://static.usrfiles.com/ugd/866690_c627c49cf99e4aa3b7bb9509955a2fda.pdfIn PDF document text
- https://static.usrfiles.com/ugd/ccb1c6_f47b5fc89e954c4fb12d0b9a5308d63b.pdfIn PDF document text
- https://static.usrfiles.com/ugd/c81504_71138d5f9ee2476cae508b3ecd6e7e0f.pdfIn PDF document text
- https://static.usrfiles.com/ugd/73cb9e_81ad9b9f7490416997cfdcd28658712a.pdfIn PDF document text
- https://static.usrfiles.com/ugd/b8c837_3bb1240c36df4070a09f433bd2f94fb8.pdfIn PDF document text
- https://static.usrfiles.com/ugd/26481d_a950de58950a4972b1cd943f428aa367.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://scripts.sil.org/OFLIn PDF document text
- http://dejavu.sourceforge.netIn PDF document text
- http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text
Extracted artifacts 4
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off000066c1.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x66C1 | 5248 bytes |
SHA-256: 18630ce35ff168bdbd902aee506b41b12e52d224dfdf7708d428e72d6e7b750b |
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font_01_sfnt_off0000786b.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x786B | 6856 bytes |
SHA-256: 05aeac9f98ab8f107dc4ecf44800be2ab23a7c574d0997e3dacf1267a5ac41e8 |
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font_02_sfnt_off00008fca.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x8FCA | 10412 bytes |
SHA-256: 3309eca5ba4f0bd956017e02166f215c673d5dfa51448d701b1439f72a61ed38 |
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font_03_sfnt_off0000b39e.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB39E | 16336 bytes |
SHA-256: cb8b0c3b75634a3ac40028f3142d2b99dbff9c8bfe93654f62892c2eba89f065 |
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