MALICIOUS
152
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious Link
The PDF contains numerous embedded links, with a critical heuristic identifying a link to a known malicious redirector infrastructure. The document body, though partially corrupted, contains text related to 'American education' and a PDF title, suggesting a lure. The primary malicious IOC is the redirector URL, which is likely used to funnel victims 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.com/wix?keyword=american+education+joel+spring+17th+edition+pdf
- https://static.usrfiles.com/ugd/affb4a_65eb539fd62545e4b50af919f14bd79b.pdf
- https://static.usrfiles.com/ugd/15cd4d_ff785025ba0549d9b80a2ceb342deedb.pdf
- https://static.usrfiles.com/ugd/77d535_c109ad0be9b64f99a727cf70d4296799.pdf
- https://static.usrfiles.com/ugd/b8c837_4eff25d7850a40f7b91869aedce118a8.pdf
- https://static.usrfiles.com/ugd/f3ecbe_b96c16c49bf9407892e8ebed61b0a91a.pdf
- https://static.usrfiles.com/ugd/b8c837_9b3437ac93af4eedb579bd23c38eb787.pdf
- https://static.usrfiles.com/ugd/b8c837_157440d2edae43d6b7bdffdd7c5d561d.pdf
- https://static.usrfiles.com/ugd/dfb5f8_a98ad2f131ef4ebbafd670f183b9561c.pdf
- https://cdn.shopify.com/s/files/1/0433/7441/1926/files/72947157269.pdf
- https://cdn.shopify.com/s/files/1/0465/3629/4558/files/docker_ubuntu_16.pdf
- https://cdn.shopify.com/s/files/1/0432/2390/8520/files/4533403365.pdf
- https://static.usrfiles.com/ugd/4826f5_dd8fe0e1b7ee4441afb6b31281dc10ab.pdf
- https://static.usrfiles.com/ugd/b8c837_42717236b40443d0974665c2105e88a0.pdf
- https://static.usrfiles.com/ugd/b6bf5b_89d0b04935674ed4968f6210099fb51a.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_off00004ae1.binb07981447fbf9f8abb9af77d53407368df0b4c9fd330f38af719607ff434bb0d |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x4AE1 | 5768 bytes |
font_01_sfnt_off00005e61.bin185fe5f6de84e493af8ff157a68c72f9a995814249a1ce456b525eae807e03bf |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x5E61 | 10044 bytes |
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