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 pointing to Shopify domains hosting other PDFs, but one critical link directs to a known malicious redirector. The ML classifier also strongly flagged this PDF as malicious. The presence of numerous links suggests a link farm or SEO poisoning tactic, with the primary malicious link likely serving as a gateway to further malicious content or malware. No scripts were extracted, but the PDF structure itself facilitates the malicious redirection.
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=alarm+check+valve+reliable+pdf
- http://tilakemu.nicolewijngaarden.com/uploads/1/3/1/3/131380600/760611.pdf
- http://files.emberlense.com/uploads/1/3/1/8/131858791/sibojatusizozonenat.pdf
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- https://cdn.shopify.com/s/files/1/0430/7822/1973/files/sudalewegumuzipemobada.pdf
- https://cdn.shopify.com/s/files/1/0436/7027/4201/files/vascular_surgery_textbook.pdf
- https://cdn.shopify.com/s/files/1/0430/2936/4889/files/deropiwufu.pdf
- https://cdn.shopify.com/s/files/1/0432/6545/8336/files/bomba_de_engranajes_internos.pdf
- https://cdn.shopify.com/s/files/1/0431/5322/7936/files/86342478917.pdf
- https://cdn.shopify.com/s/files/1/0433/2499/7800/files/battery_charging_basics.pdf
- https://cdn.shopify.com/s/files/1/0431/0210/9856/files/41877161184.pdf
- https://cdn.shopify.com/s/files/1/0432/4176/7072/files/17107887787.pdf
- https://cdn.shopify.com/s/files/1/0432/9514/6139/files/deep_approach_to_learning.pdf
- https://cdn.shopify.com/s/files/1/0433/7401/8716/files/64538122593.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_off000053e7.bin27af6b3098c1541b08b13c13273e27c8d813828ad2c28b789d47fbf2af3daf91 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x53E7 | 5472 bytes |
font_01_sfnt_off00006655.bine51f5b9af92b7c16af8e47cf50fb57ee02665ad4927d5d50e12b4a160c0878cd |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6655 | 9840 bytes |
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