MALICIOUS
152
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious Link
The PDF contains a prominent link disguised as a driver download for an Arduino Mega 328p. This link, https://ttraff.me/wix?keyword=driver+arduino+mega+328p, is flagged as a malicious redirector. The presence of numerous other PDF links, many pointing to static.usrfiles.com, suggests a link farm or SEO poisoning tactic to distribute the malicious PDF. The ML classifier strongly supports the malicious nature of this document.
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.me/wix?keyword=driver+arduino+mega+328p
- https://static.usrfiles.com/ugd/2ddd39_2a1bb4e2e1ec4e1c88fcca1e37c3623b.pdf
- https://static.usrfiles.com/ugd/9a242c_38eb6606131e43f7905f9d88447ced95.pdf
- https://static.usrfiles.com/ugd/b0cb2d_82a897eb979b48188ad74925555f0884.pdf
- https://cdn.shopify.com/s/files/1/0432/3190/3902/files/livro_psicologia_aplicada_a_administrao_de_empresas.pdf
- https://cdn.shopify.com/s/files/1/0437/3485/9930/files/bel_ami_guy_de_maupassant_francais.pdf
- https://cdn.shopify.com/s/files/1/0433/0127/3758/files/2004_nissan_maxima_service_manual.pdf
- https://static.usrfiles.com/ugd/4826f5_d02a0f59e57d43019235b68b6a068fc6.pdf
- https://static.usrfiles.com/ugd/5e8de6_f7dfa551829e4e36bab11828221d96fd.pdf
- https://static.usrfiles.com/ugd/04e6f9_5be32fd5a77c45258cf8bce917569800.pdf
- https://static.usrfiles.com/ugd/b8c837_136f5b22e5ed455f9f3d9a3404f5ebc9.pdf
- https://static.usrfiles.com/ugd/590778_c5be8f00c87942c2acfd73821557ef1b.pdf
- https://static.usrfiles.com/ugd/8de238_ae025d8664b548edb1f6202fa9f09882.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_off000062ae.bind26fffaf16b451d596d310f8381a7026cb098bad09f64f96b75ca87a409feef9 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x62AE | 5620 bytes |
font_01_sfnt_off000075c7.bin9954486e2458a0ba033d910163d2986c8129b78dfecc12f1e47abfddc5036731 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x75C7 | 10884 bytes |
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