MALICIOUS
152
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
The PDF document was flagged as malicious by a machine learning classifier and contains a critical heuristic firing for a malicious redirector link. The document body, though heavily obfuscated, contains the URL that triggered the heuristic. The presence of numerous embedded URLs, many pointing to Shopify, suggests a link farm or content distribution strategy, with at least one URL identified as a malicious redirector.
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/wix?keyword=definicion+de+estres+oms+pdf
- https://cdn.shopify.com/s/files/1/0434/6196/8025/files/75470819977.pdf
- https://cdn.shopify.com/s/files/1/0438/2723/2918/files/80856274188.pdf
- https://cdn.shopify.com/s/files/1/0429/7683/7785/files/pilifirifud.pdf
- https://cdn.shopify.com/s/files/1/0431/8189/9944/files/bugusetujuzixilivojeren.pdf
- https://cdn.shopify.com/s/files/1/0433/9957/7756/files/anemia_aplasica_pediatria.pdf
- https://cdn.shopify.com/s/files/1/0431/7993/3862/files/crash_bandicoot_psx_rom.pdf
- https://cdn.shopify.com/s/files/1/0435/1488/8360/files/machiavelli_the_prince.pdf
- https://cdn.shopify.com/s/files/1/0432/3383/7224/files/no_choirboy.pdf
- https://cdn.shopify.com/s/files/1/0440/2796/9686/files/35765088829.pdf
- https://cdn.shopify.com/s/files/1/0434/9257/3336/files/dinerixojazorela.pdf
- https://static.usrfiles.com/ugd/b8c837_1229d99cadd74615a225a1d4375d81ec.pdf
- https://static.usrfiles.com/ugd/b8c837_a917695fcc12412e834d052dc22b206c.pdf
- https://static.usrfiles.com/ugd/b8c837_fdf5f146ca094003854c4e8304bba7de.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_off000083da.bin1a2475b301d31b432006508b6a395cffd5365ccab8fe728ec03c72885fac5e35 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x83DA | 5056 bytes |
font_01_sfnt_off000094fd.binbc5927c93a953b34cae6358a548ae525ba7125fd8e3677ae3165ce3ee991bcf6 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x94FD | 11300 bytes |
font_02_sfnt_off0000b9fe.bin541fa2b6826b0add99b7d5a173ef1e6a5567607b5192f75b810eb17d6a563501 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB9FE | 16204 bytes |
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