MALICIOUS
152
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious Link
The PDF contains a large number of embedded links, many pointing to Shopify domains, but one critical link directs to a known malicious redirector. This redirector is disguised as a search result for a textbook, likely to lure victims into clicking. The ML classifier strongly supports the malicious nature of this PDF.
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.ru/pify?keyword=psychology+myers+11th+edition+pdf
- http://files.icemtn.com/uploads/1/3/0/9/130969428/gavobufixisikeja.pdf
- http://files.marinveloclub.org/uploads/1/3/1/4/131483009/tuvisav.pdf
- http://files.heller4selectman.com/uploads/1/3/1/8/131857655/73043408269.pdf
- http://files.bellvillerent-all.com/uploads/1/3/2/7/132740743/9014582.pdf
- https://cdn.shopify.com/s/files/1/0429/5714/4230/files/96593598752.pdf
- https://cdn.shopify.com/s/files/1/0428/6644/2406/files/jekod.pdf
- https://cdn.shopify.com/s/files/1/0428/3016/8230/files/77556923457.pdf
- https://cdn.shopify.com/s/files/1/0432/5395/6758/files/bulomobaw.pdf
- https://cdn.shopify.com/s/files/1/0437/0874/3835/files/mamujerefudokibetejikad.pdf
- https://cdn.shopify.com/s/files/1/0428/4622/4551/files/zepisefaxekum.pdf
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/18842325712.pdf
- https://cdn.shopify.com/s/files/1/0428/3197/0471/files/95489935200.pdf
- https://cdn.shopify.com/s/files/1/0433/9384/3367/files/84857660043.pdf
- https://cdn.shopify.com/s/files/1/0434/5833/0786/files/lepagiponekevopelubuna.pdf
- https://cdn.shopify.com/s/files/1/0437/7346/0641/files/78602509851.pdf
- https://cdn.shopify.com/s/files/1/0434/2756/1634/files/27167475356.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/
Extracted artifacts 2
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off00007177.bin4c8ca3c1b29fd35ace94a102095abe6525d4ae2b261bdce33d862be1e5f70c5c |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7177 | 5516 bytes |
font_01_sfnt_off00008423.bin3285c55c92bd798ebad60a89fc0bb4c47051c74eb68f361f7cfe9e1ddca1bafd |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x8423 | 10572 bytes |
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