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 critical heuristic due to its extensive use of embedded links, many of which point to external PDF files. One critical heuristic specifically identified a link to a known malicious redirector infrastructure at 'ttraff.ru'. The ML classifier also strongly indicated maliciousness. The document body contains garbled text but includes the URL 'https://ttraff.ru/pify?keyword=angle+measure+to+decimal+degree+form+calculator', which is likely used to redirect users to malicious content or for SEO manipulation.
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=angle+measure+to+decimal+degree+form+calculator
- http://files.minnesotadivingacademy.com/uploads/1/3/1/4/131438056/widajazuw-wovof-rutiso.pdf
- http://files.katiegage.com/uploads/1/3/2/7/132740384/2287363.pdf
- https://cdn.shopify.com/s/files/1/0432/0870/4164/files/lejufutokolok.pdf
- https://cdn.shopify.com/s/files/1/0428/4229/2390/files/10306274149.pdf
- https://cdn.shopify.com/s/files/1/0435/0771/2155/files/no_man_s_sky_ionized_cobalt.pdf
- https://cdn.shopify.com/s/files/1/0434/0727/8238/files/animal_magnetism_osrs_guide.pdf
- https://cdn.shopify.com/s/files/1/0429/0831/9907/files/38626500115.pdf
- https://cdn.shopify.com/s/files/1/0433/5622/5688/files/kasafipabirir.pdf
- https://cdn.shopify.com/s/files/1/0428/1758/5308/files/42033424927.pdf
- https://cdn.shopify.com/s/files/1/0432/2341/6987/files/cluster_type_headache_adalah.pdf
- https://cdn.shopify.com/s/files/1/0432/1955/0370/files/9593194505.pdf
- https://cdn.shopify.com/s/files/1/0437/2656/9633/files/subewusorelamawuxamix.pdf
- https://cdn.shopify.com/s/files/1/0437/4996/5985/files/14430461031.pdf
- https://cdn.shopify.com/s/files/1/0430/8926/4794/files/jarowe.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_off000054c7.bin089054b63dc0e1c5f60686cd497cca09ef8e00b953a47f5c65b4903fbdd99d96 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x54C7 | 5328 bytes |
font_01_sfnt_off000066c8.bin7ebb34b7cced192ebb042c39fbc1e84adae3bb6204e42bf4d867620ea74a0276 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x66C8 | 13192 bytes |
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