MALICIOUS
154
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious Link
The PDF contains a link to a known malicious redirector, which is disguised as a vacuum pump manual. The ML classifier strongly indicated maliciousness. The document body and embedded URLs suggest a lure to a malicious site, likely for phishing or malware distribution. The presence of a large number of embedded links to benign Shopify PDFs indicates a potential SEO poisoning or link farm tactic to obscure 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.link/wix?keyword=busch+r5+vacuum+pump+manual
- https://cdn.shopify.com/s/files/1/0439/7511/4910/files/qasida_burda_sharif_urdu.pdf
- https://cdn.shopify.com/s/files/1/0430/1075/2663/files/25416029517.pdf
- https://cdn.shopify.com/s/files/1/0433/1392/2206/files/18090706000.pdf
- https://cdn.shopify.com/s/files/1/0461/3681/9865/files/33932316009.pdf
- https://cdn.shopify.com/s/files/1/0434/6318/0454/files/rutopejujopegemotemaruz.pdf
- https://cdn.shopify.com/s/files/1/0427/4018/7303/files/2186465392.pdf
- https://cdn.shopify.com/s/files/1/0432/4855/0050/files/76200892176.pdf
- https://cdn.shopify.com/s/files/1/0429/5832/3865/files/sidub.pdf
- https://cdn.shopify.com/s/files/1/0437/1090/6518/files/gujivaworegozuwojef.pdf
- https://cdn.shopify.com/s/files/1/0432/6280/4136/files/33362550494.pdf
- https://cdn.shopify.com/s/files/1/0448/2190/5570/files/apics_s_op.pdf
- https://static.usrfiles.com/ugd/b8c837_1a9a834c28534bb6b9f4c5bc94b64f05.pdf
- https://static.usrfiles.com/ugd/b8c837_729d691f03ea498285c983a66500103a.pdf
- https://static.usrfiles.com/ugd/b8c837_4e8d41fffb954a07975dc57a1c859989.pdf
- https://static.usrfiles.com/ugd/ea9bdf_c96c0114ffe34891bfc0082da9f756a9.pdf
- https://static.usrfiles.com/ugd/36f25b_85e2f6796ce641fbaf257e1ffcf2f265.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_off00006459.bin49638f26d6d7cabe35922fe782eb5e5fed84bf45fffb62cae468e3caf8d5b6a4 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6459 | 5408 bytes |
font_01_sfnt_off000076a0.bindafbf79109b93ed1ea5e2279a0fa98a564b9009857141825c2269a151df7e888 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x76A0 | 11792 bytes |
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