MALICIOUS
152
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
The PDF contains a link to a known malicious redirector, ttraff.com, disguised as a lab manual chapter. This indicates a phishing or social engineering attempt to redirect the user to malicious content. The PDF also hosts a large number of external links, many pointing to static.usrfiles.com, suggesting a link farm or content distribution network for malicious payloads. No scripts were extracted, but the primary attack vector appears to be 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.com/wix?keyword=jarvis+lab+manual+chapter+13
- https://static.usrfiles.com/ugd/b8c837_497dc99242c144dbba8b873bab2c1a97.pdf
- https://static.usrfiles.com/ugd/b8c837_005882a4fa324a5691640cd1ef84b234.pdf
- https://static.usrfiles.com/ugd/b8c837_e824070f6e1745b1bfb4cc3cb22c099a.pdf
- https://static.usrfiles.com/ugd/b8c837_794720be077449388cd86d87b8f395c3.pdf
- https://static.usrfiles.com/ugd/834936_974dea95a2d44b96bb4ca0c765b40a57.pdf
- https://static.usrfiles.com/ugd/b8c837_042bcdc01125418b8b193e4ea30b423a.pdf
- https://static.usrfiles.com/ugd/b8c837_ff72808bf56a467499be93704337857a.pdf
- https://static.usrfiles.com/ugd/b8c837_ce8485c771254e16b8da408b3e5501c1.pdf
- https://cdn.shopify.com/s/files/1/0439/2534/0328/files/ncert_class_12_biology_textbook.pdf
- https://cdn.shopify.com/s/files/1/0429/2804/6233/files/effectiveness_of_advertising_through_social_media.pdf
- https://cdn.shopify.com/s/files/1/0449/3679/0171/files/balochistan_issue_and_its_solution.pdf
- https://cdn.shopify.com/s/files/1/0431/1960/7962/files/96073548743.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_off000049bf.bin2ee07ad7cc76909b2e54f126d5be41b6b02d90ebeb390da918c4e2327da07238 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x49BF | 5580 bytes |
font_01_sfnt_off00005c8c.bin7170aac0383d3a0664138b1f65a3cc5f74571dd28754244bbca7b4826b81c593 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x5C8C | 10240 bytes |
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