MALICIOUS
184
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
The PDF contains a critical heuristic firing for a malicious redirector link, directing users to 'https://ttraff.link/wix?keyword=chemistry+atomic+structure+practice+1+answers'. Additionally, it exhibits characteristics of a PDF link farm, with numerous embedded links, including one to 'https://cdn.shopify.com/s/files/1/0429/7926/2615/files/34155885538.pdf'. The ML classifier strongly indicates maliciousness. The document body, though partially corrupted, contains references to the redirector and other PDF links, suggesting a lure to external malicious content.
Machine Learning
- Nyx PDF Classifier malicious score 1.0000
Heuristics 5
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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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Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARMSmall PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
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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.link/wix?keyword=chemistry+atomic+structure+practice+1+answers In PDF document text
- http://sited.tnquarterhorsesales.com.au/uploads/1/3/1/1/131164112/wepabavebot.pdfIn PDF document text
- http://files.thomasoudman.com/uploads/1/3/1/4/131407530/e860e3cbc.pdfIn PDF document text
- http://files.syandash.co.uk/uploads/1/3/2/6/132681779/viwenajid.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/7926/2615/files/34155885538.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0462/3777/8071/files/science_9_answer_keys.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/7949/8917/files/john_lewis_bed_sheets_super_king_size.pdfIn PDF document text
- https://dc435fe9-cc6c-4074-b51e-b473db48e9c8.filesusr.com/ugd/8a419d_a65d17eaec194d1fa37fdbe3870ea333.pdf?index=trueIn PDF document text
- https://24fd5688-204c-45f5-991f-1079137e49b0.filesusr.com/ugd/2994dd_fd8a84b47ca540689f2d5a67e855b3bc.pdf?index=trueIn PDF document text
- https://43d6bd49-a8d0-4bc7-ba1e-21e3fcfdcba4.filesusr.com/ugd/12745a_acea0cc2aa994662a59d8af292ee085b.pdf?index=trueIn PDF document text
- https://dfc8a057-102e-453b-bb7e-98f6fcb8e144.filesusr.com/ugd/ee4a13_68572a6aed39433db11fb505d676116d.pdf?index=trueIn PDF document text
- https://1b856a9b-51d6-40d6-941f-abeeae9236ac.filesusr.com/ugd/0b1cf2_7b6e865121fe4542a32327e2e86ce842.pdf?index=trueIn PDF document text
- https://5a4ed51b-8b29-4a59-8e80-c8c2e7dbafc9.filesusr.com/ugd/1e52da_dd8faa071d814ea3846bf7438feb2471.pdf?index=trueIn PDF document text
- https://92728a36-fab5-4e4f-ac47-85add782c6ff.filesusr.com/ugd/909b15_49733a29b6bc49dab0d55c4d1fac14c6.pdf?index=trueIn PDF document text
- https://fa817b11-752d-4b95-b122-fded3b8ace74.filesusr.com/ugd/a58502_3cf31b6bda9d425cbae2bba2e16630e8.pdf?index=trueIn PDF document text
- http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
- http://purl.org/dc/elements/1.1/In PDF document text
- http://ns.adobe.com/pdf/1.3/In PDF document text
- http://ns.adobe.com/xap/1.0/In PDF document text
- http://ns.adobe.com/xap/1.0/mm/In PDF document text
- http://ns.adobe.com/xap/1.0/rights/In PDF document text
- http://scripts.sil.org/OFLIn PDF document text
Extracted artifacts 2
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off00004896.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x4896 | 5292 bytes |
SHA-256: 6424c038a7c3206bb6cd82e7cb638107b9e0708c1d48f52661fc4e2f111ae28b |
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font_01_sfnt_off00005a7d.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x5A7D | 9744 bytes |
SHA-256: 0e7091e4afde5dbb5cd0079bd94060ff35a57973799ef13c2ffc4b6e4b2c214f |
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