MALICIOUS
154
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF contains numerous embedded links, many of which point to a redirector service known for hosting malicious content. The document body, though partially corrupted, suggests a lure related to "Systems architecture 7th edition" to entice users to click the malicious link. The ML classifier strongly indicates maliciousness, and the presence of a redirector URL confirms the intent to lead users to harmful infrastructure.
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.cc/wix?keyword=systems+architecture+7th+edition
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- https://static.usrfiles.com/ugd/b8c837_5c6cbe1d631246d2b27c5c00f0925dff.pdf
- https://static.usrfiles.com/ugd/5af86b_3e63caa6ff174066974b44140ef22648.pdf
- https://static.usrfiles.com/ugd/ab059d_71b323d74965432b8941b59bd6edbbe4.pdf
- https://static.usrfiles.com/ugd/b8c837_fbecc9a1d58c46e9b45e70e6f34fd5c9.pdf
- https://static.usrfiles.com/ugd/a467d2_144f082d7fd64366a0aea4c939c603ac.pdf
- https://static.usrfiles.com/ugd/b8c837_bdfd312934db4f7abe1f82318d54d2ac.pdf
- https://static.usrfiles.com/ugd/b8c837_c4b27a19a9c04f3e986963b242c21e9b.pdf
- https://static.usrfiles.com/ugd/b8c837_ac0412b987584be683eb3296dac60c33.pdf
- https://static.usrfiles.com/ugd/b8c837_adcf0e3d827b45dfb0d27593129c00a1.pdf
- https://static.usrfiles.com/ugd/b8c837_98999d05c9434b8fb7a634a0e4bb6b43.pdf
- https://static.usrfiles.com/ugd/b8c837_2c693b2f74a84c5d82f66b5838e8335d.pdf
- https://static.usrfiles.com/ugd/b8c837_d22b7b1c7ebd4c4f93e4430c7519d839.pdf
- https://static.usrfiles.com/ugd/b8c837_f20e34dc86bb4b579029d044e266d776.pdf
- https://static.usrfiles.com/ugd/69695d_ef1d35a6a8b94f339b35ea0d584a8f6c.pdf
- https://static.usrfiles.com/ugd/b8c837_b9014f6f1a234e708e17ecb817c429d1.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/
- http://scripts.sil.org/OFL
Extracted artifacts 2
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000465d.bin3818632f14e17c3afc7419f8a238794bcf42fa42bafe73a48afee812858bb92d |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x465D | 5432 bytes |
font_01_sfnt_off000058b0.binb17fb50f3bb192477662b935115019999fb3d922c25af81e38ddf39e1dbc36c0 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x58B0 | 10228 bytes |
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