MALICIOUS
152
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
The PDF was flagged as malicious by an ML classifier and contains a critical heuristic indicating a link to known malicious redirector infrastructure. The embedded URL `https://ttraff.me/wix?keyword=polymorphism+biotransformation+enzymes` is likely the initial lure. The document also contains a large number of external PDF links, many pointing to Shopify domains, suggesting a link farm or SEO poisoning attempt to increase visibility of the malicious redirector.
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=polymorphism+biotransformation+enzymes
- https://static.usrfiles.com/ugd/33a2e4_1e47b6aac30f45f08313dd1928a3db25.pdf
- https://static.usrfiles.com/ugd/63f22d_eeddac57349e4e5ea1345d932ec23ed2.pdf
- https://static.usrfiles.com/ugd/16a96a_32cd861d5bbe40c3a336da9ba540c1ba.pdf
- https://cdn.shopify.com/s/files/1/0427/8213/0332/files/mopopezunalox.pdf
- https://cdn.shopify.com/s/files/1/0437/7968/6549/files/karya_tulis_ilmiah_tentang_bahaya_merokok_dikalangan_pelajar.pdf
- https://cdn.shopify.com/s/files/1/0437/6923/3565/files/31836307398.pdf
- https://cdn.shopify.com/s/files/1/0437/0061/7381/files/free_letterhead_template_word.pdf
- https://cdn.shopify.com/s/files/1/0431/4900/0864/files/58482495361.pdf
- https://cdn.shopify.com/s/files/1/0434/1468/3815/files/subad.pdf
- https://cdn.shopify.com/s/files/1/0432/6581/8789/files/23901309468.pdf
- https://cdn.shopify.com/s/files/1/0430/6622/8898/files/65584406887.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_off0000941f.bin425d6a7e556d0e8194079a87551ea1d204660ef8edba12bb5d1fa012ed4c741c |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x941F | 5432 bytes |
font_01_sfnt_off0000a67a.bin096c3fb3cb67c84ef8ed9fc2ea1de4d60305f9a5261171edba62807e4afb51aa |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xA67A | 10492 bytes |
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