MALICIOUS
152
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious Link
The PDF contains a critical heuristic firing for a malicious redirector link, pointing to 'https://ttraff.club/wix?keyword=isc2+cissp+practice+test+pdf'. This URL is embedded within the document body, suggesting a social engineering lure to trick users into clicking it. The presence of a large number of external PDF links, many pointing to benign content, indicates a link farm strategy, likely to improve SEO for the malicious redirector. 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.club/wix?keyword=isc2+cissp+practice+test+pdf
- https://static.usrfiles.com/ugd/003b86_88d46a400f354e3ba0375354f6121daf.pdf
- https://static.usrfiles.com/ugd/7041e4_90233a65632542e9ba5bba172a58f507.pdf
- https://static.usrfiles.com/ugd/7a359d_16a4ca13272f4c85aaf6913ce984a23d.pdf
- https://static.usrfiles.com/ugd/f241d9_c6f04b308d5a4b8686cf2fc6203d1ded.pdf
- https://cdn.shopify.com/s/files/1/0428/3164/2780/files/canon_pixma_ip110_manual.pdf
- https://cdn.shopify.com/s/files/1/0433/7503/4520/files/coleman_ac_unit.pdf
- https://cdn.shopify.com/s/files/1/0428/3239/6447/files/weight_loss_exercise_schedule_template.pdf
- https://cdn.shopify.com/s/files/1/0435/1324/9944/files/37929455824.pdf
- https://static.usrfiles.com/ugd/e2f197_c15ff5a743844c96b1be427487e1e0be.pdf
- https://static.usrfiles.com/ugd/314c35_2570ed06a61d43b08933e45e0026071c.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 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off00006b9e.binbad5272348ec88d246bb4838b6dbb065d435733298449118f2c0beb487f011a0 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6B9E | 4760 bytes |
font_01_sfnt_off00007bd3.bind1124917c8ac715a614e128fd878f1a63c156a9261f2ffeef9f359ce109127ab |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7BD3 | 14268 bytes |
font_02_sfnt_off0000a8e2.bind1f4a20f0e35a0564be54678b929bb8c711862c507f070c2b9a6abea8daf4378 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xA8E2 | 4324 bytes |
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