MALICIOUS
152
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
The PDF file was flagged by multiple critical heuristics indicating malicious redirector links and a link farm. The ML classifier also strongly indicated maliciousness. The document body contains a URL that appears to be a lure for translation practice sets, which redirects to a known malicious infrastructure. The embedded links likely serve to distribute further malicious content or lead to phishing 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/pify?keyword=bengali+to+english+translation+practice+sets+pdf
- http://pubefe.alisonpeters.net/uploads/1/3/2/6/132682883/gogezusexupax.pdf
- http://files.southwatercommunitycentre.org/uploads/1/3/1/3/131378993/81c65b5493.pdf
- http://files.cedarseast.net/uploads/1/3/1/6/131637606/musufad.pdf
- https://cdn.shopify.com/s/files/1/0440/8098/8325/files/nintendo_ds_roms.pdf
- https://cdn.shopify.com/s/files/1/0428/2646/5436/files/35309407570.pdf
- https://cdn.shopify.com/s/files/1/0434/6583/4649/files/743_bobcat_specs.pdf
- https://cdn.shopify.com/s/files/1/0430/4823/9257/files/zinanunepixeramatuk.pdf
- https://cdn.shopify.com/s/files/1/0434/0701/6103/files/ruvojukixexo.pdf
- https://cdn.shopify.com/s/files/1/0434/9850/4354/files/ridusudebigisujuxowisiwe.pdf
- https://cdn.shopify.com/s/files/1/0435/3520/4511/files/druid_tree_form.pdf
- https://cdn.shopify.com/s/files/1/0437/2699/5621/files/telugu_kathalu_books_free_download.pdf
- https://cdn.shopify.com/s/files/1/0433/5170/3706/files/all_discord_fonts.pdf
- https://cdn.shopify.com/s/files/1/0435/3484/4059/files/wumubedajan.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 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off00005cb9.bin2e806788d72923682062982b889e3f712941ebb2c99ad34883dc32a02ae85a35 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x5CB9 | 5468 bytes |
font_01_sfnt_off00006f4c.bin240d41ffbef210203b529f9d6ce6ff76e3ff31c3b09d6c0a5da3a197c2dbe803 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6F4C | 5288 bytes |
font_02_sfnt_off0000808f.bin8a8629aa6a27910cec07cb78230819074f3e58437074e40eeb499f38e07facc4 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x808F | 11400 bytes |
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