MALICIOUS
154
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF contains embedded links, with one prominent URL leading to a known malicious redirector. The document body, though heavily obfuscated, contains text that appears to be a lure related to 'antigen presentation and processing' to entice users to click the malicious link. The presence of multiple external PDF links suggests a link farm or SEO poisoning attempt.
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=antigen+presentation+and+processing+pdf
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- https://cdn.shopify.com/s/files/1/0428/5281/0911/files/19984481334.pdf
- https://cdn.shopify.com/s/files/1/0431/7977/0019/files/kusidekuga.pdf
- https://cdn.shopify.com/s/files/1/0435/6987/3054/files/gikikodozevuzuf.pdf
- https://cdn.shopify.com/s/files/1/0431/3628/6877/files/fijimamisonodovemagunox.pdf
- https://cdn.shopify.com/s/files/1/0437/9456/3229/files/sadifepabeso.pdf
- https://static.usrfiles.com/ugd/cdb50c_e222432812ce41b6acf6b56857721053.pdf
- https://static.usrfiles.com/ugd/05900a_bea81e1f18814395a7119196ce7dae38.pdf
- https://static.usrfiles.com/ugd/a9248e_52dc0d3ac8ab4b0a976bd67eae40c4ca.pdf
- https://static.usrfiles.com/ugd/8a419d_f14646d141ad4967be1c76da9bdaa778.pdf
- https://static.usrfiles.com/ugd/bcd086_808bd70d6f564a9abea9407d138dcf00.pdf
- https://cdn.shopify.com/s/files/1/0437/0215/7466/files/35198852185.pdf
- https://cdn.shopify.com/s/files/1/0432/3095/3630/files/zasujomom.pdf
- https://cdn.shopify.com/s/files/1/0429/9682/6261/files/introduction_to_optics_pedrotti_solutions_manual.pdf
- https://cdn.shopify.com/s/files/1/0430/0197/0837/files/vuvijorab.pdf
- https://cdn.shopify.com/s/files/1/0433/1926/3397/files/14357187742.pdf
- https://cdn.shopify.com/s/files/1/0431/1682/2679/files/bipozolama.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_off00006225.binba543186a583f9014396e892e1b5b505f6b328163124baf91b0acf96cc85e984 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6225 | 5280 bytes |
font_01_sfnt_off00007432.bin5ee32b9a6fde2791c77590a59336cd57cd19aa8032175cddce77e4a476c3b70b |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7432 | 9936 bytes |
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