MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious Link
The PDF contains a large number of embedded links, many of which point to a link farm hosted on cdn.shopify.com, designed to appear as legitimate documents. One critical heuristic indicates that the PDF links to known malicious redirector infrastructure via the URL https://ttraff.ru/wb. This suggests a campaign to drive traffic to malicious sites through SEO-poisoned PDF documents.
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/wb?keyword=neoplasias%20malignas%20definicion%20pdf In PDF document text
- http://files.lccgsmt.org/uploads/1/3/0/8/130874381/matilejaseja_sodumugutipo.pdfIn PDF document text
- http://files.livelikelove.net/uploads/1/3/1/4/131437701/4410130.pdfIn PDF document text
- http://files.negsbestthing.com/uploads/1/3/2/8/132815961/riwemuto.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/1/0432/5765/9547/files/4046851466.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/3929/3589/files/zipine.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/94215193789.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/7307/7409/files/goguravedigevonatezi.pdfIn PDF document text
- https://nanesezup.files.wordpress.com/2020/06/notajabaloxofepav.pdfIn PDF document text
- https://pusetojax.files.wordpress.com/2020/06/zozasawi.pdfIn PDF document text
- https://leforav.files.wordpress.com/2020/06/nedejuxokexokezopu.pdfIn PDF document text
- https://nogonig497746126.files.wordpress.com/2020/07/10246196975.pdfIn PDF document text
- https://zosifasagul146255057.files.wordpress.com/2020/06/xosapuwobusenedi.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/5429/3402/files/zikelo.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/3121/5780/files/73323545843.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/4610/9345/files/tafigikadipajegokutuf.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/8559/4775/files/nelipew.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/3731/0626/files/4931575102.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0436/4405/9806/files/todimimujofovovudodiru.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_off00008967.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x8967 | 5056 bytes |
SHA-256: 9429c40d24236c9e64ca386945442ce47071372a36dbfdd83083679d57212d00 |
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font_01_sfnt_off00009a85.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x9A85 | 10660 bytes |
SHA-256: b9100e53549484a35881461f317fcae0d28ff1f16dd7506cf0ac9662c12a58fd |
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