MALICIOUS
152
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
The PDF contains a link to a known malicious redirector, ttraff.ru, which is likely used to obscure the final destination of the malicious payload. The document also features a large number of links to other PDFs hosted on static.usrfiles.com, suggesting a link farm or SEO poisoning attempt to increase visibility. The ML classifier strongly indicated maliciousness, supporting the presence of a 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.ru/wix?keyword=delonghi+nabucco+coffee+maker
- https://static.usrfiles.com/ugd/b8c837_23de9b25a7244af8b20cabae8e05d6d0.pdf
- https://static.usrfiles.com/ugd/0a51c1_bf95a8c1d73c4fbfae2d3150ac9d8e66.pdf
- https://static.usrfiles.com/ugd/a86d68_ad584d9852d54ef5a97889e44940a122.pdf
- https://static.usrfiles.com/ugd/9ff9b8_56e58cec8e064e19bc359398b1697f87.pdf
- https://cdn.shopify.com/s/files/1/0429/8443/9971/files/30272057960.pdf
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/73121007565.pdf
- https://static.usrfiles.com/ugd/756799_1552d0bd31a24ce1a5de3e72218238d2.pdf
- https://static.usrfiles.com/ugd/20d83a_868205fa2b4240d794c7d7c3eb26f017.pdf
- https://static.usrfiles.com/ugd/930050_a328b9fb85c7472e9447ddad11017f65.pdf
- https://static.usrfiles.com/ugd/ecec20_fcac7092be8d4a06a695ac29050bc338.pdf
- https://static.usrfiles.com/ugd/b8c837_a204aadcb32040fea2a3631dabc818db.pdf
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/31670740491.pdf
- https://cdn.shopify.com/s/files/1/0431/7295/4269/files/vafawovavijepukavixij.pdf
- https://cdn.shopify.com/s/files/1/0429/7313/5011/files/sevenuzutarojiwagobegitem.pdf
- https://cdn.shopify.com/s/files/1/0431/1734/6965/files/clinical_pharmacy_therapeutics_roger_walker.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_off00006664.bin3be404998f57751c5a59ce09fbd62df87f2df1addfae9ca415eae4857e00edba |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6664 | 5320 bytes |
font_01_sfnt_off00007857.bin399af942c61ec050065d29a1c3b4d80df12abf7463f4806587f8ea3e0ae396d1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7857 | 10176 bytes |
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