MALICIOUS
152
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious Link
The PDF contains a large number of embedded links, many pointing to external sites, which is indicative of a link farm or redirection scheme. One critical heuristic identified a link to known malicious redirector infrastructure. The document body, though heavily obfuscated, contains the URL 'https://ttraff.cc/pify?keyword=armature+reaction+and+commutation+in+dc+machines+pdf', suggesting a lure to a potentially malicious site disguised as a technical document. The ML classifier strongly supports the malicious verdict.
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/pify?keyword=armature+reaction+and+commutation+in+dc+machines+pdf
- http://files.800steps.com/uploads/1/3/0/8/130813966/9495548.pdf
- http://files.mainstpub.com/uploads/1/3/1/3/131383586/sumaxixo.pdf
- http://files.artmatterscommunitystudiogallery.com/uploads/1/3/1/0/131070674/038f8ab324a85d.pdf
- http://files.1stdivisionrangers.org/uploads/1/3/1/1/131164027/0e22aeb8811ab02.pdf
- http://files.icdlearning.com/uploads/1/3/1/3/131398497/baviralixuvuwo-lumod-sebipoxajata.pdf
- https://cdn.shopify.com/s/files/1/0435/9618/5763/files/41527756131.pdf
- https://cdn.shopify.com/s/files/1/0432/0549/2904/files/risomomitipexopewax.pdf
- https://cdn.shopify.com/s/files/1/0427/4126/8647/files/60968492370.pdf
- https://cdn.shopify.com/s/files/1/0431/3792/5269/files/vapovoxofelemorop.pdf
- https://cdn.shopify.com/s/files/1/0428/1116/2790/files/bilivafopaxerovelip.pdf
- https://cdn.shopify.com/s/files/1/0440/6634/1029/files/pojux.pdf
- https://cdn.shopify.com/s/files/1/0430/2936/4885/files/munak.pdf
- https://cdn.shopify.com/s/files/1/0433/0127/3758/files/9842229493.pdf
- https://cdn.shopify.com/s/files/1/0434/1891/0876/files/georgia_lease_agreement.pdf
- https://cdn.shopify.com/s/files/1/0429/4243/1395/files/fowatelajadajude.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_off00007234.binc8cf9c8b6fc61792d1afde17091400322cdc3d036252e683e017e256e9f38e0b |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7234 | 5352 bytes |
font_01_sfnt_off0000843a.bin7c587cdf0ace405aa97cae12101d356b28e661dfa8bc36b7b48349a4f9f94370 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x843A | 9996 bytes |
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