MALICIOUS
234
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
The PDF contains numerous embedded links, with one specifically pointing to a known malicious redirector. The ML classifier strongly indicated maliciousness. The document body, though obfuscated, contains the text 'Pdf krause dietoterapia' and the URL 'https://ttraff.ru/wb?keyword=pdf%20krause%20dietoterapia', suggesting a lure to a malicious site. The presence of a link farm further supports the malicious intent.
Machine Learning
- Nyx PDF Classifier malicious score 1.0000
Heuristics 6
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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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Password-protected archive handoff high SE_PASSWORD_ARCHIVE_LUREDocument gives password instructions for an archive or attachment — often used to keep payloads encrypted until after gateway scanning
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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/wb?keyword=pdf%20krause%20dietoterapia In PDF document text
- http://files.vjbm.com/uploads/1/3/1/3/131380482/2008404.pdfIn PDF document text
- http://files.chaseaturner.com/uploads/1/3/1/4/131482944/xiweliza_legose_pogagunesilov_sopupoditomogem.pdfIn PDF document text
- http://parase.flycatchertravel.com/uploads/1/3/1/4/131437622/devetosi-rozarami-petoroju-taboxaledetalat.pdfIn PDF document text
- http://gekowafaw.sleddogsocietyofwales.co.uk/uploads/1/3/1/3/131382243/210860e112bfc1d.pdfIn PDF document text
- http://files.original-items.com/uploads/1/3/0/8/130874382/dedopov_fefuwoxojadadip.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- https://cdn.shopify.com/s/files/1/0436/5756/0217/files/37891173500.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/dadimutixiwukigojubiw.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0427/7311/9143/files/mtd_parts_manual.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/2617/7438/files/18880500104.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/5245/7369/files/28158546477.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0454/2916/2152/files/inorganic_chemistry_notes_in_tamil.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0438/0898/1153/files/xikezuxamilugenureso.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/9261/5073/files/71050701992.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/9887/3763/files/genetic_polymorphism_review.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/5819/1768/files/mumunokuluwutevuxotufosis.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/2771/8567/files/favupe.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
Extracted artifacts 2
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off000058cb.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x58CB | 5068 bytes |
SHA-256: b2359f35c3f958c605b28439d2c5dbe389853dc82fe643e5952f52164fa18f25 |
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font_01_sfnt_off00006a19.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6A19 | 10712 bytes |
SHA-256: 2ae0cbf7b914c69178d7cc11bae839bbcfd77b8cd96c0b9f8f6c0738b7b9cc83 |
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