MALICIOUS
152
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 'ttraff.ru'. This URL is embedded within the document body, suggesting a social engineering lure for a free course. The ML classifier also strongly flagged this PDF as malicious. The file is likely a downloader or part of a phishing campaign.
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/wix?keyword=algorithme+cours+pdf+gratuit
- https://static.usrfiles.com/ugd/455f95_53a91f7845314e0888a4b82cbe3df948.pdf
- https://static.usrfiles.com/ugd/48d9a1_e0f82f4b445643a9840d178f68c8e959.pdf
- https://static.usrfiles.com/ugd/b8c837_bec52d215bef415bab6634e77357ab05.pdf
- https://static.usrfiles.com/ugd/d9d1f5_9aeb02e751ca449baf6cfbe67a791f16.pdf
- https://static.usrfiles.com/ugd/47b1e8_db8097a865a3476e8afee320dfd2fdd5.pdf
- https://static.usrfiles.com/ugd/49be48_ef9a9986297441aab63bd1ec6085741c.pdf
- https://static.usrfiles.com/ugd/c1108c_484f96dcc3024176bdfa54d84957fa36.pdf
- https://static.usrfiles.com/ugd/784815_e9765e564ed54cbab51746642e3951dc.pdf
- https://static.usrfiles.com/ugd/912de2_83b192672a24464a8c57aaed1b93e673.pdf
- https://static.usrfiles.com/ugd/b8c837_b2c3427f58f145edbda03a8c7c7d935a.pdf
- https://static.usrfiles.com/ugd/2c608b_d4f949fae34945bd9b68e958e6adabc4.pdf
- https://cdn.shopify.com/s/files/1/0431/1882/1530/files/minuet_in_g_major_bach.pdf
- https://cdn.shopify.com/s/files/1/0428/1312/8863/files/myers_briggs_test_short.pdf
- https://cdn.shopify.com/s/files/1/0437/1959/0040/files/ak_letter_images.pdf
- https://cdn.shopify.com/s/files/1/0428/8380/9439/files/fifupimoxufos.pdf
- https://cdn.shopify.com/s/files/1/0430/2995/4721/files/13741978341.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_off0000ddfe.binc5bf0150e4411fe1242ad5f37f10aaa45313e954cf82bcc40afe4c52596914d3 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDDFE | 5556 bytes |
font_01_sfnt_off0000f0bc.bin1c7e7f1b665683f88e617cfa106f3ae840f7b1bfe363bdc2e1d99c1c00e90a00 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF0BC | 13364 bytes |
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