MALICIOUS
152
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious Link
The PDF contains numerous embedded links, with a critical heuristic firing for a PDF redirector link pointing to ttraff.com. The document body, though heavily obfuscated, contains text related to 'hvac licensing study guide free download' and the malicious URL. This indicates a social engineering attempt to trick users into visiting a potentially harmful site.
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=hvac+licensing+study+guide+free+download
- https://cdn.shopify.com/s/files/1/0428/0378/9991/files/vasowek.pdf
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/nawujumukupuzuwoxelojoses.pdf
- https://cdn.shopify.com/s/files/1/0434/7772/9432/files/93089781164.pdf
- https://cdn.shopify.com/s/files/1/0432/9170/5500/files/learn_basic_english_grammar.pdf
- https://static.usrfiles.com/ugd/b8c837_8827c12f9d7a409fa60c8322755e3de4.pdf
- https://static.usrfiles.com/ugd/b8c837_0112073a40784c0b8b3ba496522f7bcf.pdf
- https://static.usrfiles.com/ugd/b8c837_ad78fa24dd2d46dcaa99271bdc585643.pdf
- https://static.usrfiles.com/ugd/b8c837_adcc115665af4fb4aed394875277abb9.pdf
- https://static.usrfiles.com/ugd/b8c837_7f344bbd63c14397ab3ea4d46e266329.pdf
- https://static.usrfiles.com/ugd/b8c837_b388b01f7f8748ac9f6e493b41fbc52f.pdf
- https://static.usrfiles.com/ugd/b8c837_ddf5f9b00c734c4c8da90ac4924426b2.pdf
- https://static.usrfiles.com/ugd/b8c837_c60f0e16c4c7435696cc43e21fbc263b.pdf
- https://static.usrfiles.com/ugd/b8c837_97c468cfd3ee45e4b0c3034c15c84f8b.pdf
- https://static.usrfiles.com/ugd/b8c837_d43b6ec7328043178df670c7166d41a8.pdf
- https://static.usrfiles.com/ugd/b8c837_3b3ea172b5c2452ca0f08364a1105733.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_off00004848.binfe3f471311853fa639859f577ae9a96afb32149dfc46184b242e40b6ff913391 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x4848 | 5404 bytes |
font_01_sfnt_off00005acb.bindcc9901baa3cc8e84bbbd4f29edabd2c626ef5711dbb4a955347077576f23765 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x5ACB | 9708 bytes |
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