MALICIOUS
154
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
The PDF file contains a large number of embedded links, many of which point to domains associated with redirectors or unknown content. The primary malicious URL identified is https://ttraff.ru/pify?keyword=anatomy+and+physiology+chapter+9+articulations+answers, which likely serves as a redirector to further malicious content. The document body, though heavily obfuscated, also contains this URL, suggesting a lure to academic or informational content to entice clicks. No scripts were extracted, but the heuristic firings indicate a malicious redirector and a link farm strategy.
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=anatomy+and+physiology+chapter+9+articulations+answers
- http://lexojoj.shadesofartistry.com/uploads/1/3/1/4/131438684/latibefemuti_semakab_segosefipe_kabefiwinalovo.pdf
- http://files.themoveablechurch.org/uploads/1/3/0/8/130874128/9175303.pdf
- http://files.gigilynfineart.com/uploads/1/3/0/8/130815303/patifipebararo_letadul_tezuwexiz_famovemipovali.pdf
- http://tanog.kawh3.com/uploads/1/3/1/1/131163864/2313275.pdf
- https://cdn.shopify.com/s/files/1/0428/0870/5187/files/99009494225.pdf
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/41326774972.pdf
- https://cdn.shopify.com/s/files/1/0429/5625/9491/files/43134558283.pdf
- https://cdn.shopify.com/s/files/1/0431/1970/6279/files/aramaic_lexicon.pdf
- https://cdn.shopify.com/s/files/1/0428/7650/2182/files/51574269267.pdf
- https://cdn.shopify.com/s/files/1/0432/1977/9742/files/57521456704.pdf
- https://cdn.shopify.com/s/files/1/0440/3865/2069/files/manhattan_sara_bareilles.pdf
- https://cdn.shopify.com/s/files/1/0431/2072/2080/files/dogepaxaxe.pdf
- https://cdn.shopify.com/s/files/1/0433/7935/9900/files/beamforming_matlab_source_code.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_off000065b7.bin5e2f487bba2fb5c5885a49cac3282455e78bfde5ca7537cd5e7672e7b279b0d3 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x65B7 | 5824 bytes |
font_01_sfnt_off00007970.binf1eb8beeb2e0ec1a2fd4af4d0c190c48777c9d27c4478514f9c43df86279b83c |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7970 | 10560 bytes |
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