MALICIOUS
154
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
The PDF contains a critical heuristic firing for a malicious redirector link, pointing to 'https://ttraff.cc/pify?keyword=number+theory+questions+with+solutions+pdf'. This URL is presented within the document body, disguised as a link to academic material. The PDF also contains a mass external PDF link farm, with many links pointing to Shopify domains, suggesting a potential SEO poisoning or link farm tactic. The ML classifier 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=number+theory+questions+with+solutions+pdf
- http://files.younglifemanateecounty.com/uploads/1/3/1/3/131383924/1960506.pdf
- http://files.cynergy-tech.co.uk/uploads/1/3/1/4/131482950/xipevuvevusiladob.pdf
- http://files.baptistegerbier.com/uploads/1/3/2/8/132814241/zikebudok-panoka-naludosazidefe.pdf
- http://files.mollybrennan.org/uploads/1/3/0/7/130775123/9432697.pdf
- https://cdn.shopify.com/s/files/1/0429/7896/7703/files/70543263299.pdf
- https://cdn.shopify.com/s/files/1/0429/8155/6375/files/67270095446.pdf
- https://cdn.shopify.com/s/files/1/0431/0908/9434/files/gojutal.pdf
- https://cdn.shopify.com/s/files/1/0431/4185/7448/files/vezasobigimofu.pdf
- https://cdn.shopify.com/s/files/1/0432/1440/5793/files/88938254117.pdf
- https://cdn.shopify.com/s/files/1/0432/8305/4757/files/gufiwigezujevudem.pdf
- https://cdn.shopify.com/s/files/1/0430/3015/1330/files/kufusuwazoxovumuliwaxi.pdf
- https://cdn.shopify.com/s/files/1/0431/5096/6950/files/51641782504.pdf
- https://cdn.shopify.com/s/files/1/0433/7516/5594/files/raxamikazewisipor.pdf
- https://cdn.shopify.com/s/files/1/0433/7677/1224/files/policy_manual_template.pdf
- https://cdn.shopify.com/s/files/1/0430/9037/8903/files/xixitotokifo.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_off000066ec.binbdf70d6665b35e41cd47a04026ffca22a9ff780d8c897bafc43735c909a16250 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x66EC | 5500 bytes |
font_01_sfnt_off0000798b.binc8160b1b9e796e11907291aff90c2119f6281779380f0b8af9dcbbcfdbcf6f82 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x798B | 10232 bytes |
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