MALICIOUS
222
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
The PDF contains numerous embedded links, many of which point to a link farm hosted on Shopify, and one critical link to a known malicious redirector at 'ttraff.ru'. The document body and heuristics indicate a lure impersonating a document signing service like DocuSign, with a call-to-action to 'Electronically sign pdf online'. This suggests the primary goal is to trick the user into clicking the malicious link, likely leading to a phishing page or a second-stage malware download.
Machine Learning
- Nyx PDF Classifier malicious score 1.0000
Heuristics 7
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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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Document signing service impersonation lure medium SE_DOCUSIGN_LUREDocument impersonates DocuSign, Adobe Sign, or a similar signing service in a signing-request context
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Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTONDocument contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
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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/pify?keyword=electronically+sign+pdf+online In PDF document text
- http://files.ezrollpocketwraps.com/uploads/1/3/1/4/131407547/fuzuvefusulafi-nubofudeze.pdfIn PDF document text
- http://fagetijok.makingbusinessgreat.com/uploads/1/3/1/3/131378950/bizazedosodefivexur.pdfIn PDF document text
- http://files.heightscenter.org/uploads/1/3/1/4/131437806/3f7f6.pdfIn PDF document text
- http://files.nativetales.com/uploads/1/3/0/7/130775942/b90bae542e.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/1/0427/8734/0454/files/tevutinutijukigimixated.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/3320/5655/files/nexuzanen.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/5311/2735/files/network_plus_certification_study_guide.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0439/1115/1768/files/koviti.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/9478/5694/files/lodukorofudiluve.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/0862/1735/files/62124380019.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/2060/6885/files/xadonugaxe.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/4460/8932/files/43233127261.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/2286/6842/files/adjectives_ed_ing_grammar.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/1016/2837/files/bobamozija.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0438/2382/5053/files/abordagem_quanti_qualitativa.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/0130/6526/files/kebotajevabaguwijezukup.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/2462/9411/files/41183989468.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/3331/2925/files/61155472348.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_off00008df6.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x8DF6 | 5384 bytes |
SHA-256: 197a1b9fba40683131c61d89b8f96b95e4fe2d34a7d49b7f3108a886043c193a |
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font_01_sfnt_off0000a055.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xA055 | 14424 bytes |
SHA-256: 8416843ab4f14a0b951a1f02f5e6bc8b5e648359749be07df4ce06bcf181df5a |
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