MALICIOUS
154
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF contains a large number of embedded links, many of which point to Shopify domains hosting other PDFs, suggesting a link farm for SEO manipulation or to obscure malicious redirects. One critical heuristic identified a link to known malicious redirector infrastructure at `https://ttraff.cc/pify?keyword=architecture+english+vocabulary+pdf`. The ML classifier also strongly indicated maliciousness. The document body itself is heavily obfuscated and contains what appears to be a reference to the malicious URL.
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=architecture+english+vocabulary+pdf
- http://files.victortoh.com/uploads/1/3/0/8/130873715/4093644.pdf
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- https://cdn.shopify.com/s/files/1/0438/2290/7554/files/borrow_synonym_formal.pdf
- https://cdn.shopify.com/s/files/1/0435/3074/8072/files/72143936877.pdf
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/libidurekatomanazavevufi.pdf
- https://cdn.shopify.com/s/files/1/0433/8073/6165/files/neural_networks_and_deep_learning_aggarwal.pdf
- https://cdn.shopify.com/s/files/1/0438/5921/4496/files/63893634172.pdf
- https://cdn.shopify.com/s/files/1/0436/6237/7113/files/bafusabiwazunigutizolof.pdf
- https://cdn.shopify.com/s/files/1/0430/8343/2096/files/13404129067.pdf
- https://cdn.shopify.com/s/files/1/0435/5339/0743/files/pavowujavonulaxe.pdf
- https://cdn.shopify.com/s/files/1/0434/2172/8933/files/sezoluguwus.pdf
- https://cdn.shopify.com/s/files/1/0434/0465/6797/files/zaketidanosewujujerakiti.pdf
- https://cdn.shopify.com/s/files/1/0438/1723/8685/files/lipifu.pdf
- https://cdn.shopify.com/s/files/1/0437/5583/1445/files/tadujarananujoretikavoro.pdf
- https://cdn.shopify.com/s/files/1/0433/9892/2392/files/metafisica_aristoteles_libro_7.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/
- http://scripts.sil.org/OFL
Extracted artifacts 2
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off000099f5.binec8484c7b97eca0fb889f143dc98c27eefacf9d97a82b5d78daba7f1484f4376 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x99F5 | 5708 bytes |
font_01_sfnt_off0000ad66.bin20a027c2853df79fe530a6b0f1719778662f0fb18c7916f27d1ea11bfb8b5550 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xAD66 | 9980 bytes |
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