MALICIOUS
154
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious Link
The PDF contains a malicious redirector link and a large number of embedded links to other PDFs, suggesting a link farm or redirection scheme. The ML classifier strongly indicated maliciousness. The document body, though heavily obfuscated, contains the URL https://ttraff.cc/pify?keyword=elementary+classical+analysis+marsden+pdf+download, which is also flagged as a malicious redirector. This indicates the primary goal is to redirect the user to external content, likely malicious.
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/pify?keyword=elementary+classical+analysis+marsden+pdf+download
- http://files.clarknorthart.com/uploads/1/3/0/9/130969148/6b789a674dd01ba.pdf
- http://files.greatsanddunes.org/uploads/1/3/1/8/131857465/gudekegej.pdf
- http://files.karenjrader.com/uploads/1/3/1/3/131380612/nakunenor-forij-vadadinigun.pdf
- http://files.adriftassemblages.com/uploads/1/3/1/4/131405977/1cdad8e6d77.pdf
- https://cdn.shopify.com/s/files/1/0430/7540/3936/files/nozubuvorododu.pdf
- https://cdn.shopify.com/s/files/1/0431/0161/8330/files/73168189383.pdf
- https://cdn.shopify.com/s/files/1/0436/9471/9131/files/vegejelifogonuwodanonoguk.pdf
- https://cdn.shopify.com/s/files/1/0431/2684/9700/files/8884699263.pdf
- https://cdn.shopify.com/s/files/1/0430/8277/6729/files/vifasevuzebifonitaretevu.pdf
- https://cdn.shopify.com/s/files/1/0429/6579/4969/files/bumulif.pdf
- https://cdn.shopify.com/s/files/1/0434/2277/7496/files/types_of_analysis_in_fea_pdf.pdf
- https://cdn.shopify.com/s/files/1/0427/9946/4611/files/8509450699.pdf
- https://cdn.shopify.com/s/files/1/0436/0234/6148/files/35235307245.pdf
- https://cdn.shopify.com/s/files/1/0432/3685/1874/files/nabolekopokexasumoguroxaw.pdf
- https://cdn.shopify.com/s/files/1/0436/7689/3334/files/apple_usb_driver.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_off0000445c.bina72a34957b47cf1fdfdbab8c614108200f86a0a465b62953b980cf2a31cdf057 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x445C | 5452 bytes |
font_01_sfnt_off000056e8.bin95d0a98e33053d4862fd421e6b4a7eb591e89ec871fdf32f422beadc78f6562f |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x56E8 | 9708 bytes |
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