MALICIOUS
152
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious Link
The PDF was flagged as malicious by a machine learning classifier and contains a critical heuristic indicating it's a redirector link to known malicious infrastructure. It also exhibits characteristics of a PDF link farm, with numerous embedded URLs pointing to external resources, many of which are hosted on Shopify. The primary malicious URL identified is 'https://ttraff.link/wix?keyword=functions+of+proteins+in+the+body+pdf', which likely serves as a lure or initial stage for a broader attack. The document body itself contains garbled text and references to 'wkhtmltopdf', suggesting it was programmatically generated.
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=functions+of+proteins+in+the+body+pdf
- http://files.just-verandas.com/uploads/1/3/1/3/131379045/xobuxisedujus_wekabod.pdf
- http://susevapa.midtown-office-space.co.uk/uploads/1/3/1/6/131636725/pumugep.pdf
- http://files.shpoppyshawnsshmokedcheese.com/uploads/1/3/2/7/132712661/493811.pdf
- https://cdn.shopify.com/s/files/1/0445/9141/5460/files/the_strength_training_anatomy_workout_2.pdf
- https://cdn.shopify.com/s/files/1/0436/2049/9620/files/kozokutojasewumalisatugis.pdf
- https://cdn.shopify.com/s/files/1/0431/6479/5044/files/fundamentos_de_economia_krugman_completo.pdf
- https://cdn.shopify.com/s/files/1/0435/1783/7480/files/deped_tambayan_curriculum_guide_in_mapeh.pdf
- https://cdn.shopify.com/s/files/1/0432/8685/5840/files/parubupavovukusibonixuzo.pdf
- https://cdn.shopify.com/s/files/1/0429/7211/9199/files/minerufurobanu.pdf
- https://static.usrfiles.com/ugd/b98abb_9d7a5d78971744f6b2f921e7423f7ad3.pdf
- https://static.usrfiles.com/ugd/ecec20_52a340a94d77460db1531b6a077d8f35.pdf
- https://static.usrfiles.com/ugd/ab63e3_66321af115624b96afd3d382ca03ca53.pdf
- https://static.usrfiles.com/ugd/83e584_94fb6dc763214980937051e285c1aaa7.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_off000060d7.bin0ef7294dcb69e8b700e18aecfe69229bed726dcb2c1ab5aefd03cd73546f469c |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x60D7 | 5196 bytes |
font_01_sfnt_off00007287.binbe7e847e5f6d4f2ce2122a0591ecd19cf18c8c28ca088e875db5fadc65bd69c5 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7287 | 9536 bytes |
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