MALICIOUS
154
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious Link
The PDF contains a significant number of embedded links, many of which point to domains associated with redirector infrastructure or link farms. The heuristic PDF_MALICIOUS_REDIRECTOR_LINK specifically flags a URL leading to traff.ru, indicating a malicious redirector. The ML classifier also strongly indicated maliciousness. The document body, though malformed, contains the same URLs, reinforcing the intent to lure users to external sites.
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/wb?keyword=browser%20object%20model%20pdf
- http://files.chicagoschoolofgrappling.com/uploads/1/3/1/4/131409170/312064.pdf
- http://files.ghghuk.com/uploads/1/3/0/7/130739509/237f0c.pdf
- http://files.rhfarmersmarket.com/uploads/1/3/1/4/131437753/bofilukovegolafo.pdf
- http://files.gccprodesignsupport.net/uploads/1/3/1/6/131637168/nofilunadatuzowegeja.pdf
- http://files.bluespringsjewelry.com/uploads/1/3/1/4/131483391/9507331.pdf
- http://files.thewillowworks.org/uploads/1/3/1/4/131438002/xorekezapa.pdf
- http://files.exquisitetastebydonna.com/uploads/1/3/1/4/131438840/fawoxoxeji.pdf
- http://files.fortcollinscd.org/uploads/1/3/1/1/131163514/sezixisa_fabokanonibi_wobusuwasidako.pdf
- https://lamofozeguve.files.wordpress.com/2020/06/42706168797.pdf
- https://kudikinojov.files.wordpress.com/2020/07/nuwanujezimati.pdf
- https://futidufesag.files.wordpress.com/2020/06/favasamaborelekugafo.pdf
- https://takovime.files.wordpress.com/2020/06/12578352470.pdf
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/mojijemorewowasimagaxo.pdf
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/51982080438.pdf
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/71409998288.pdf
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/73121007565.pdf
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/95509007145.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_off00007c87.bin225aa6b286009847465002f875208fa5cd24072232997501c985812fcb0acd8d |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7C87 | 5080 bytes |
font_01_sfnt_off00008dea.binc05b965ae14a6aaeb65ba9302ad94c3d6a902b08173c472c2449d1ef6ffd9a24 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x8DEA | 14368 bytes |
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