MALICIOUS
154
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 User Execution: Malicious Link
The PDF contains a large number of embedded links, many of which point to Shopify domains hosting other PDFs, indicative of a link farm or SEO poisoning tactic. One critical heuristic identified a link to a known malicious redirector at 'https://ttraff.cc/pify?keyword=implement+linked+list+in+java', suggesting an attempt to direct users to malicious content. The ML classifier also strongly flagged this PDF as malicious.
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=implement+linked+list+in+java
- http://files.nbpsrc.ca/uploads/1/3/0/9/130969985/a4c12404.pdf
- http://files.johb.org/uploads/1/3/1/4/131438427/xudalimefu.pdf
- http://files.stylebybarbara.com/uploads/1/3/0/8/130874115/tozifek.pdf
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- https://cdn.shopify.com/s/files/1/0430/2359/7725/files/the_macro_economy_today.pdf
- https://cdn.shopify.com/s/files/1/0434/5063/0296/files/samegusonupixoweb.pdf
- https://cdn.shopify.com/s/files/1/0431/0152/0029/files/jipoxagun.pdf
- https://cdn.shopify.com/s/files/1/0432/6447/5299/files/28987553745.pdf
- https://cdn.shopify.com/s/files/1/0435/7927/7467/files/51616927799.pdf
- https://cdn.shopify.com/s/files/1/0438/3136/1686/files/d3_google_maps.pdf
- https://cdn.shopify.com/s/files/1/0433/5199/8623/files/xogil.pdf
- https://cdn.shopify.com/s/files/1/0430/0485/4426/files/6379923405.pdf
- https://cdn.shopify.com/s/files/1/0430/4207/8877/files/dosewivamifanudam.pdf
- https://cdn.shopify.com/s/files/1/0440/8098/8325/files/moretopa.pdf
- https://cdn.shopify.com/s/files/1/0432/8361/1801/files/siredowenodidijafana.pdf
- https://cdn.shopify.com/s/files/1/0432/2872/5405/files/88921297804.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_off0000612a.bin8446a5c5c865afafcb505ecefd95408af904b986e23c0706ea639f5012f7ca88 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x612A | 5144 bytes |
font_01_sfnt_off0000729f.bin119cbfde383ca2da9a5baf462162bdc5096bf8910b7ddbaf8619eaf3355d4fb6 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x729F | 12168 bytes |
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