MALICIOUS
152
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious Link
The PDF contains a link that redirects to a malicious domain, disguised as a sound engineering syllabus. The PDF_MALICIOUS_REDIRECTOR_LINK heuristic confirms this, and the ML classifier strongly indicates maliciousness. The document body, though heavily obfuscated, contains the target URL and references to a syllabus, supporting the lure.
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/pify?keyword=sound+engineering+syllabus+pdf
- http://files.freedomdayusa.org/uploads/1/3/0/8/130873922/e8359ee.pdf
- http://files.cynthiawidawski.com/uploads/1/3/1/1/131164081/pujopupiperaxifuk.pdf
- http://files.deromelab.org/uploads/1/3/0/8/130873718/5663959.pdf
- https://cdn.shopify.com/s/files/1/0430/3070/8375/files/pokixorojimubaw.pdf
- https://cdn.shopify.com/s/files/1/0431/0777/8717/files/kulerobosapo.pdf
- https://cdn.shopify.com/s/files/1/0429/5658/7174/files/greasemonkey_cookie_injector.pdf
- https://cdn.shopify.com/s/files/1/0433/7840/9622/files/41613012737.pdf
- https://cdn.shopify.com/s/files/1/0431/3687/6695/files/minusezetegunamux.pdf
- https://cdn.shopify.com/s/files/1/0430/7176/6677/files/20995293216.pdf
- https://cdn.shopify.com/s/files/1/0429/1110/5183/files/se_binary_not_responding_minecraft.pdf
- https://cdn.shopify.com/s/files/1/0434/5564/3809/files/xavuw.pdf
- https://cdn.shopify.com/s/files/1/0428/5697/2455/files/guzejalumitap.pdf
- https://cdn.shopify.com/s/files/1/0427/6633/6166/files/rarafubaboduvikoratakiva.pdf
- https://cdn.shopify.com/s/files/1/0430/3791/7345/files/80220368395.pdf
- https://cdn.shopify.com/s/files/1/0434/1124/3164/files/97155224427.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_off000072ef.bin5a94134ac79b625407e5b0037cf5b17a959f55ca621051e4b3315e4730fa3b7f |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x72EF | 5556 bytes |
font_01_sfnt_off000085e4.bin09bd43ac47088a176e49fe054dead2f2b7b5d010cf61bb6fdcf71441a01d4fb9 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x85E4 | 10304 bytes |
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