MALICIOUS
150
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
The PDF contains a link farm designed to redirect users to malicious infrastructure, specifically identified by the PDF_MALICIOUS_REDIRECTOR_LINK heuristic. The primary malicious URL is https://ttraff.ru/pify?keyword=j%25C4%2599zyk+angielski+dla+pocz%25C4%2585tkuj%25C4%2585cych+irena+dobrzycka+bronis%25C5%2582aw+kopczy%25C5%2584ski+pdf. The document body, though heavily obfuscated, contains what appears to be a lure related to an English language learning PDF, aiming to trick users into clicking the malicious link. The ML classifier strongly supports the malicious verdict.
Machine Learning
- Nyx PDF Classifier malicious score 1.0000
Heuristics 3
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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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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=j%25C4%2599zyk+angielski+dla+pocz%25C4%2585tkuj%25C4%2585cych+irena+dobrzycka+bronis%25C5%2582aw+kopczy%25C5%2584ski+pdf
- http://files.stationsurfshop.com/uploads/1/3/1/3/131380616/d101c.pdf
- http://files.prahranrg.com.au/uploads/1/3/1/3/131380951/zojixi-firolonof-gojux.pdf
- http://files.cliffordstearns.com/uploads/1/3/0/8/130814115/sudiwoxevigik_xomanebub_gobufukid_zudaj.pdf
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/nulanevu.pdf
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/50306279194.pdf
- https://cdn.shopify.com/s/files/1/0439/1642/7419/files/801884392.pdf
- https://cdn.shopify.com/s/files/1/0438/4089/7174/files/53470896845.pdf
- https://cdn.shopify.com/s/files/1/0432/6106/7428/files/resistance_to_beta_lactam_antibiotics.pdf
- https://cdn.shopify.com/s/files/1/0430/6177/2442/files/91257248928.pdf
- https://cdn.shopify.com/s/files/1/0432/2508/8168/files/maharashtra_budget_2020_in_marathi.pdf
- https://cdn.shopify.com/s/files/1/0432/0513/2456/files/diramosuzofuwipaki.pdf
- https://cdn.shopify.com/s/files/1/0427/7141/5196/files/merge_online_free_without_email.pdf
- https://cdn.shopify.com/s/files/1/0430/0124/9955/files/raxurazabubolopadetafekib.pdf
- https://cdn.shopify.com/s/files/1/0434/7199/5030/files/61749833484.pdf
- https://cdn.shopify.com/s/files/1/0431/3550/0439/files/jovabivovipaxonivutazedul.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_off00005398.bina8599dc34c65a1b9b522d7c6020c0f10900d26c611a77a09d12dd5c9473d1755 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x5398 | 6568 bytes |
font_01_sfnt_off000068d9.binf006574fa20a53a114ae1491964f68c79e256b329f734b7d7c7fcc20c9cdd901 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x68D9 | 10676 bytes |
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