MALICIOUS
154
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
The PDF contains a malicious redirector link disguised as educational content. The ML classifier strongly indicated maliciousness, and the PDF structure includes a link farm pointing to various external PDFs. The primary malicious IOC is the redirector URL, which is likely used to funnel users to further malicious content.
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=introduction+to+abstract+mathematics
- https://static.usrfiles.com/ugd/b8c837_e1de1c023a5a4ace8c1d74a72eafdd2f.pdf
- https://static.usrfiles.com/ugd/6cfc61_6a435638894f4ef58f57c5eacbf0c346.pdf
- https://static.usrfiles.com/ugd/d55797_ee4e0fe7110c44a991cbf73fa135bbe2.pdf
- https://static.usrfiles.com/ugd/b8c837_5714bae28ead4cc998467ce501fe75ef.pdf
- https://static.usrfiles.com/ugd/b8c837_4c41bea29aba489cbd092bdc608078f5.pdf
- https://cdn.shopify.com/s/files/1/0440/8626/3960/files/pefefe.pdf
- https://cdn.shopify.com/s/files/1/0430/7773/0464/files/48093555819.pdf
- https://cdn.shopify.com/s/files/1/0435/1547/8176/files/rajef.pdf
- https://cdn.shopify.com/s/files/1/0440/7758/0453/files/29060373362.pdf
- https://cdn.shopify.com/s/files/1/0436/1525/6738/files/jack_lalanne.pdf
- https://cdn.shopify.com/s/files/1/0431/7013/6230/files/starry_starry_night_chords.pdf
- https://cdn.shopify.com/s/files/1/0437/2037/6474/files/nilugoriku.pdf
- https://cdn.shopify.com/s/files/1/0429/8155/6375/files/jisejuz.pdf
- https://cdn.shopify.com/s/files/1/0427/5906/1670/files/rijevopovijoriwamipowuke.pdf
- https://cdn.shopify.com/s/files/1/0429/5314/6517/files/vukirejipopu.pdf
- https://cdn.shopify.com/s/files/1/0437/3122/2689/files/57003456960.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_off00005134.bin63ca8f1c901d1908cdf5715d2bf2503cd40559831661247263ff429b93dee9c1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x5134 | 5224 bytes |
font_01_sfnt_off000062be.bin0aeafb1430df2f5ac58cd0b562983607052423dcee14d402d9bb80caee945a0e |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x62BE | 9832 bytes |
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