MALICIOUS
154
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains a high number of embedded links, many pointing to external PDF files, a technique often used for SEO poisoning or to distribute malicious content. One critical heuristic identified a link to known malicious redirector infrastructure, specifically 'https://ttraff.cc/wb?keyword=femfat%205.3%20manual', which is likely the primary malicious payload delivery mechanism. The document body, though heavily obfuscated, also contains this URL, reinforcing its importance.
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/wb?keyword=femfat%205.3%20manual
- http://files.arholistichealth.com/uploads/1/3/1/8/131871740/refagozaki.pdf
- http://fikub.valeriepaykov.com/uploads/1/3/1/0/131070420/19a0c75a.pdf
- http://files.federalwayseniorcenter.org/uploads/1/3/1/6/131607407/sikejid.pdf
- http://files.rflcnn.org/uploads/1/3/1/4/131453817/foxizamonelene.pdf
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- https://cdn.shopify.com/s/files/1/0435/9149/9935/files/vopapinuzatuve.pdf
- https://cdn.shopify.com/s/files/1/0432/9698/1147/files/kubinorakiluvedijigolonek.pdf
- https://cdn.shopify.com/s/files/1/0434/8303/7860/files/gintama_english_dub.pdf
- https://cdn.shopify.com/s/files/1/0438/5121/9104/files/94371246824.pdf
- https://cdn.shopify.com/s/files/1/0436/0749/0717/files/98718500247.pdf
- https://cdn.shopify.com/s/files/1/0436/8993/5002/files/blindfold_wine.pdf
- https://cdn.shopify.com/s/files/1/0427/9071/5548/files/vewigiwojati.pdf
- https://cdn.shopify.com/s/files/1/0437/1070/9915/files/rojegarexenavolinijiw.pdf
- https://cdn.shopify.com/s/files/1/0431/0761/4882/files/ruvukojazapeluf.pdf
- https://cdn.shopify.com/s/files/1/0428/3134/7868/files/21441893154.pdf
- https://cdn.shopify.com/s/files/1/0436/9121/2950/files/92083432977.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/
- http://scripts.sil.org/OFL
Extracted artifacts 2
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off00008fdc.bina4bdbbc6e585b9a531678d94fb6f46ce4218c88f26f4c3bf0e6702b1e081213c |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x8FDC | 4912 bytes |
font_01_sfnt_off0000a097.bin29547891ac18d186c2684c196569421e51fa0bdff3ddec48892ec148296c8a29 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xA097 | 12856 bytes |
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