MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
The PDF was flagged as malicious by a machine learning classifier and contains a large number of embedded links, many pointing to external PDFs. One of these links, 'https://ttraff.cc/wix?keyword=pathfinder+pre+built+characters', is associated with known malicious redirector infrastructure. The document body contains garbled text but also repeats the suspicious URL, suggesting a lure or redirection mechanism. The presence of numerous links to static.usrfiles.com indicates a potential link farm for SEO manipulation or to host further malicious content.
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.cc/wix?keyword=pathfinder+pre+built+characters 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/b8c837_b03a392f0c864f339b26f3c3b6d0a86f.pdfIn PDF document text
- https://static.usrfiles.com/ugd/b8c837_6a2d8a19e6f644ffbcb336d7de64431e.pdfIn PDF document text
- https://static.usrfiles.com/ugd/b8c837_eb2ad9d4724d4d66ab9d4b4542575d31.pdfIn PDF document text
- https://static.usrfiles.com/ugd/b8c837_0509c879d441417ba6ecb65cac80151a.pdfIn PDF document text
- https://static.usrfiles.com/ugd/b8c837_fde285ca2f0545b58b282b894a371ec7.pdfIn PDF document text
- https://static.usrfiles.com/ugd/b8c837_89ca5d07582545b3a6e3f7cf3843dbbc.pdfIn PDF document text
- https://static.usrfiles.com/ugd/b8c837_f63fa5da256941cfae0d6e715e33bf67.pdfIn PDF document text
- https://static.usrfiles.com/ugd/b8c837_85d4b6f958204b24b3f2a9278f2e0a7a.pdfIn PDF document text
- https://static.usrfiles.com/ugd/b8c837_6b08c57c3f46452da91f1e46197179dd.pdfIn PDF document text
- https://static.usrfiles.com/ugd/b8c837_114e5d7d0dcc4541a4bc9ba8b55104f5.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0459/2356/5717/files/big_bang_theory_episode_guide_season_6.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0427/6640/1692/files/characterization_of_nanoparticles_intended_for_drug_delivery.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/7007/8617/files/fuvokubigulanuvuzin.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0436/9671/7992/files/nogosejamesurudevi.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/5465/1799/files/children_s_learning_reading_books_free_download.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/2703/8359/files/vuwasirijuwugatuzazelu.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0438/2890/4093/files/7438542512.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/8815/0690/files/tenancy_agreement_sample_uk.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/5312/0664/files/56902918890.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
Extracted artifacts 2
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off00006a68.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6A68 | 5384 bytes |
SHA-256: 8df70177d30c5baff24faab63abc8209a4c6abe9f6d37f2308d0883f366307b9 |
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font_01_sfnt_off00007c99.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7C99 | 10368 bytes |
SHA-256: 8f06b8520c0d6f23e2c2070d766c36410c9637cb6860fadd19d65b88c9f0fac7 |
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