MALICIOUS
152
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious Link
The PDF file contains a significant number of embedded external links, with a critical heuristic firing indicating a PDF link to known malicious redirector infrastructure. The document body, though heavily obfuscated, also contains the URL 'https://ttraff.cc/wix?keyword=chess+opening+guidelines', which is flagged as malicious. The presence of a large link farm suggests an attempt to manipulate search engine results or to distribute malicious content through a network of seemingly benign documents.
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.cc/wix?keyword=chess+opening+guidelines
- https://cdn.shopify.com/s/files/1/0437/2440/6935/files/100_most_common_english_words.pdf
- https://cdn.shopify.com/s/files/1/0438/8909/8907/files/zajajexajiduvogafafejurer.pdf
- https://cdn.shopify.com/s/files/1/0433/7677/1224/files/policy_manual_template.pdf
- https://static.usrfiles.com/ugd/9219f8_0e72bd74fdab4802aeef2d007e1b5eaa.pdf
- https://static.usrfiles.com/ugd/dcfb95_ee1813eef97f4559a3f9e971e34bd6b6.pdf
- https://static.usrfiles.com/ugd/93c935_6692048675b7466cacef5577bf9591a5.pdf
- https://static.usrfiles.com/ugd/a640e9_00019a0d51db40cfa9599a9a6d19101f.pdf
- https://static.usrfiles.com/ugd/87d215_d11fff9d943d493696111e8efcec5c88.pdf
- https://static.usrfiles.com/ugd/b8c837_2686345c256747728c1e181d2843e5d2.pdf
- https://static.usrfiles.com/ugd/11f207_a9d77090816246f1bb16006b75a40539.pdf
- https://static.usrfiles.com/ugd/3bcfef_51dc0391bacc40bb93a8ef04ec0710b0.pdf
- https://cdn.shopify.com/s/files/1/0429/4259/5239/files/free_building_brick_wall_powerpoint_template.pdf
- https://cdn.shopify.com/s/files/1/0430/8962/5250/files/mazisodusefaleje.pdf
- https://cdn.shopify.com/s/files/1/0428/7807/5036/files/zazovubiwubinonam.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_off0000655a.bin40f080bc8d51b35d68e4a6b35905fa5438f0bd9f2ec36d99b85963d392560401 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x655A | 4820 bytes |
font_01_sfnt_off000075bf.bin3c92cacf115ac19b5948384f31c093deadac0d2b9c4b9e4b01b308e74bcdb8ad |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x75BF | 13036 bytes |
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