MALICIOUS
152
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious Link
The PDF document exhibits characteristics of a link farm, embedding numerous URLs that likely serve as a redirection mechanism to malicious sites. The heuristic PDF_MALICIOUS_REDIRECTOR_LINK specifically identifies a link to known malicious infrastructure, and PDF_SEO_LINK_FARM indicates a mass of external links. The ML classifier also strongly flagged this PDF as malicious. The embedded document body text, though heavily obfuscated, contains the URL https://ttraff.ru/pify?keyword=paper+towel+absorbency+experiment+pdf, reinforcing the redirection attack pattern.
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=paper+towel+absorbency+experiment+pdf
- http://pevoz.lcsthirdgrade.com/uploads/1/3/1/3/131379894/51691ac2.pdf
- http://files.newarkvalley.org/uploads/1/3/0/9/130969408/kukigomeguxesimafina.pdf
- http://files.costambar-puertoplata-realestate.com/uploads/1/3/0/8/130814110/1368675.pdf
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/50751207741.pdf
- https://cdn.shopify.com/s/files/1/0429/9508/9559/files/tapitixomotofudexatavitog.pdf
- https://cdn.shopify.com/s/files/1/0435/4323/2661/files/fapaxixox.pdf
- https://cdn.shopify.com/s/files/1/0428/8249/8716/files/19796470490.pdf
- https://cdn.shopify.com/s/files/1/0431/2875/0241/files/nafapuziwefumax.pdf
- https://cdn.shopify.com/s/files/1/0434/1301/2636/files/80440762610.pdf
- https://cdn.shopify.com/s/files/1/0432/4841/8971/files/63922055356.pdf
- https://cdn.shopify.com/s/files/1/0432/5317/0339/files/mozafowutifodukotanasiz.pdf
- https://cdn.shopify.com/s/files/1/0431/0463/2998/files/93020454402.pdf
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/30899714004.pdf
- https://cdn.shopify.com/s/files/1/0438/3503/1712/files/43910618129.pdf
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/zebegevuda.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_off000062f4.bin392edc56bf8fde20ee8c81f355ded09462a01b33ecf0fe31bf241e778cfd2405 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x62F4 | 5704 bytes |
font_01_sfnt_off00007666.binda522408a78229b163bc790fbd1531621a36e6a83764d196557f8fd79f5598cc |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7666 | 10616 bytes |
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