MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
The PDF file was flagged as malicious by an ML classifier and contains a link to a known malicious redirector. The document body, though heavily obfuscated, contains the URL that triggered the redirector heuristic. The presence of numerous external PDF links suggests a link farm or SEO poisoning attempt, likely to obscure the true malicious destination.
Machine Learning
- Nyx PDF Classifier malicious score 1.0000
Heuristics 5
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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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Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINKPDF embeds an image with little or no body text and a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the 'free ebook / solution-manual / document download' phishing family that ranks for natural-language search queries and routes the user into a payload/redirect chain. The PDF carries no exploit; the risk is the linked destination. Flagged structurally (image lure + SEO redirector) so it does not depend on a ClamAV/ML signature, and regardless of how many filler text pages the lure carries.
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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=aliments+acides+et+alcalins In PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- http://www.daltonmaag.com/In PDF document text
- https://static.usrfiles.com/ugd/0c41e7_54c40acca8be46a88183ae14a66f2a7f.pdfIn PDF document text
- https://static.usrfiles.com/ugd/ac51ce_c5af30836d9a40ba8a803b3660c0821b.pdfIn PDF document text
- https://static.usrfiles.com/ugd/b8c837_c4bfb0dd6b0f4d5e8e6c4e3e37471460.pdfIn PDF document text
- https://static.usrfiles.com/ugd/d1c05f_0510045b6edc46ed8d776c17d015ef20.pdfIn PDF document text
- https://static.usrfiles.com/ugd/90423f_a0662861780647c98b0e04fc405ed0ce.pdfIn PDF document text
- https://static.usrfiles.com/ugd/b8c837_b8f9203f2bd8442da0d253efdafe0730.pdfIn PDF document text
- https://static.usrfiles.com/ugd/b8c837_adbeaf83cda6478c97d63ead09e9c5b8.pdfIn PDF document text
- https://static.usrfiles.com/ugd/217d68_b18b5b48dba5404e89a1f287dab43f7f.pdfIn PDF document text
- https://static.usrfiles.com/ugd/c068f8_e43e520ed9e7432c9f28b5a9884ec313.pdfIn PDF document text
- https://static.usrfiles.com/ugd/b8c837_e7dec993685842a59996048e02d31b77.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/5307/2022/files/pujojivap.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/4039/8750/files/94920971698.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/6989/8914/files/fifeselovixubiwofoxe.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/1762/4990/files/fogajimati.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/0982/6213/files/april_2020_current_affairs_adda.pdfIn PDF document text
- https://static.usrfiles.com/ugd/b8c837_d422ec1068354474a274f0a8a3d3554d.pdfIn PDF document text
- https://static.usrfiles.com/ugd/b8c837_b8333e51fbd040d286aa09d763f6a548.pdfIn PDF document text
- https://static.usrfiles.com/ugd/7ef0dc_3cfe75904e2c46e3b922cbdb44f22ce3.pdfIn PDF document text
- http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
- http://purl.org/dc/elements/1.1/In PDF document text
- http://ns.adobe.com/pdf/1.3/In PDF document text
- http://ns.adobe.com/xap/1.0/In PDF document text
- http://ns.adobe.com/xap/1.0/mm/In PDF document text
- http://ns.adobe.com/xap/1.0/rights/In PDF document text
- http://scripts.sil.org/OFLIn PDF document text
- http://dejavu.sourceforge.netIn PDF document text
- http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text
Extracted artifacts 4
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off000076cb.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x76CB | 4656 bytes |
SHA-256: e7bf51c1719b26743fa3fefbe16ebd984c4d444b3359455c089d0881edd9e438 |
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font_01_sfnt_off0000866d.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x866D | 12044 bytes |
SHA-256: f7af2333d593e2e37486649abecf9ee4a9dc9c8f8975134a2609329be7dd91be |
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font_02_sfnt_off0000ac83.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xAC83 | 16300 bytes |
SHA-256: 4737f6cfef85770128e047f524c2f4cf39220b401ed1e61759cd467f3096abd1 |
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font_03_sfnt_off0000c210.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC210 | 4324 bytes |
SHA-256: a542ec26cea93e049a2e27cd59b1347dd9bbdea13775fd7b822b3c2b3136116f |
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