MALICIOUS
152
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
The PDF file exhibits characteristics of a link farm, with numerous embedded URLs pointing to external resources. One prominent URL, 'https://ttraff.ru/pify?keyword=campylobacter+jejuni+en+alimentos+pdf', is flagged as a malicious redirector. The ML classifier also strongly indicated maliciousness. The document body, though heavily obfuscated, contains references to the redirector URL and another Shopify URL, suggesting a coordinated effort to distribute malicious content through a network of links.
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/pify?keyword=campylobacter+jejuni+en+alimentos+pdf
- http://livufepud.kitchenkutz.net/uploads/1/3/0/9/130969472/2047735.pdf
- http://files.dartmouthregatta.co.uk/uploads/1/3/0/7/130775795/2938170.pdf
- http://files.montgomerychurch.com.au/uploads/1/3/1/8/131871849/9938135.pdf
- http://files.shabby2chicsalonandspa.com/uploads/1/3/1/4/131438464/ruvilopusufirokerez.pdf
- https://cdn.shopify.com/s/files/1/0431/8386/6018/files/duponunedosumazarifew.pdf
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/pegumi.pdf
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/mukevomisuso.pdf
- https://cdn.shopify.com/s/files/1/0438/8149/6744/files/sopitigumavukiduzokijelef.pdf
- https://cdn.shopify.com/s/files/1/0429/6874/4087/files/80426673037.pdf
- https://cdn.shopify.com/s/files/1/0436/1653/4690/files/list_of_magic_e_words.pdf
- https://cdn.shopify.com/s/files/1/0435/9972/4702/files/80377148793.pdf
- https://cdn.shopify.com/s/files/1/0428/3075/8054/files/82065808019.pdf
- https://cdn.shopify.com/s/files/1/0435/4365/8650/files/71577854696.pdf
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/69296453687.pdf
- https://cdn.shopify.com/s/files/1/0444/6637/2775/files/low_back_exercises_handout.pdf
- https://cdn.shopify.com/s/files/1/0432/9809/5262/files/nugulurofu.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_off000076bb.bin05f88343a9000557ff932801039bc9b6b87aca90abcd7a6d3b21874b540d771f |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x76BB | 5524 bytes |
font_01_sfnt_off00008972.bin757e71b40d9d1f7e2562f2bfc977d9f10a61fd15cc7201141b666ee8263c5581 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x8972 | 10184 bytes |
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