MALICIOUS
152
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
The PDF contains a mass external link farm, with many links pointing to benign Shopify URLs but one critical link to a known malicious redirector. The document body, though heavily obfuscated, contains the text 'Advanced level vocabulary pdf' and the malicious redirector URL, suggesting a lure to trick users into clicking the link. The ML classifier strongly flagged this PDF as malicious. The primary attack pattern involves redirecting users to malicious infrastructure.
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=advanced+level+vocabulary+pdf
- http://files.jaquelinesnowe.com/uploads/1/3/2/3/132302876/paxirapofugini.pdf
- http://files.djmoosetrax.com/uploads/1/3/1/4/131483440/fuboguvasuk.pdf
- http://files.greenfieldcommunitychoir.com/uploads/1/3/0/7/130740033/tenududefokotuzarib.pdf
- https://cdn.shopify.com/s/files/1/0435/6125/5073/files/fufivoj.pdf
- https://cdn.shopify.com/s/files/1/0430/1419/3311/files/xelovisim.pdf
- https://cdn.shopify.com/s/files/1/0427/8976/5279/files/cbc_educao_fsica_anos_finais.pdf
- https://cdn.shopify.com/s/files/1/0427/4746/1788/files/92496160416.pdf
- https://cdn.shopify.com/s/files/1/0431/6053/5196/files/luxanimade.pdf
- https://cdn.shopify.com/s/files/1/0438/7287/8747/files/33770954816.pdf
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/tebagomi.pdf
- https://cdn.shopify.com/s/files/1/0433/3387/7914/files/74565043394.pdf
- https://cdn.shopify.com/s/files/1/0434/0023/3112/files/36482135138.pdf
- https://cdn.shopify.com/s/files/1/0430/0469/0581/files/lusad.pdf
- https://cdn.shopify.com/s/files/1/0438/9250/6779/files/imagine_dragons_believer_lyrics_download.pdf
- https://cdn.shopify.com/s/files/1/0433/8014/6334/files/sataxasavib.pdf
- https://cdn.shopify.com/s/files/1/0438/3460/5728/files/bowabebitobaguwokevu.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_off0000547d.bin6e944debcfa571d624c8c94b24e956726169eb1d2160bf364770dca933491c9a |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x547D | 5264 bytes |
font_01_sfnt_off00006682.bin7fe9c62301900d538ef40f0e38b17da77e8f4b85722235e73aa53e60c07309a8 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6682 | 9356 bytes |
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