MALICIOUS
154
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF contains numerous embedded links, with one identified as a malicious redirector. The document body, though heavily obfuscated, contains text suggesting academic notes and MSDS documents, likely used as lures. The presence of a malicious redirector and a large number of external links indicates an attempt to drive traffic to potentially harmful sites, possibly for phishing or malware distribution.
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/pify?keyword=bsc+calculus+notes+chapter+1+pdf
- http://files.teamblendedbeauties.com/uploads/1/3/1/0/131070590/vojukup.pdf
- http://files.kelvingibbons.com/uploads/1/3/1/6/131607712/supagadanipaxinixej.pdf
- http://files.paintedturtle.co/uploads/1/3/1/3/131384115/fb6e72c34255.pdf
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- https://cdn.shopify.com/s/files/1/0431/8865/0142/files/ammonium_sulfate_msds.pdf
- https://cdn.shopify.com/s/files/1/0431/7511/6964/files/wufozuwigadanexalerazufe.pdf
- https://cdn.shopify.com/s/files/1/0431/1796/9570/files/gimajizorewukoludafezi.pdf
- https://cdn.shopify.com/s/files/1/0438/4371/5222/files/koxilidalugasumewobeka.pdf
- https://cdn.shopify.com/s/files/1/0434/4309/3660/files/beef_a_roo_nutrition.pdf
- https://cdn.shopify.com/s/files/1/0431/8704/4510/files/79098835214.pdf
- https://cdn.shopify.com/s/files/1/0431/0692/6754/files/riviragoxor.pdf
- https://cdn.shopify.com/s/files/1/0431/4418/3970/files/92745938618.pdf
- https://cdn.shopify.com/s/files/1/0430/9850/5369/files/gakatuxakurojager.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_off000043c4.bind410a53123c01e4c6daf14b9d5bbf3c45de93a926c4e5fbbbc14906a7e4b917b |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x43C4 | 5344 bytes |
font_01_sfnt_off000055f1.binc7442aa9fc3be942284e67d1f9e4b9d60b7bedc84d058217bcc490ceacb386ec |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x55F1 | 9276 bytes |
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