MALICIOUS
234
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
T1203 Exploitation for Client Execution
This PDF file contains multiple embedded URLs, with a critical heuristic identifying a link to known malicious redirector infrastructure at 'https://ttraff.ru/pify?keyword=reduce+pdf+quartz+filter'. The document also exhibits characteristics of an SEO link farm, suggesting an attempt to distribute malicious content through search engine optimization. Additionally, a heuristic indicates a lure to execute commands via the clipboard, implying a multi-stage attack. The ML classifier strongly supports the malicious verdict.
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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Clipboard command execution lure high SE_CLIPBOARD_COMMAND_LUREDocument tells the user to copy or paste clipboard content into Run, PowerShell, cmd, or another shell-like execution context
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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=reduce+pdf+quartz+filter In PDF document text
- http://files.philipwattsinteriors.com/uploads/1/3/1/4/131437423/bifin-wudipasuti-mujur-kejabufis.pdfIn PDF document text
- http://files.juniorsheepassociationofflorida.org/uploads/1/3/2/8/132814742/bufedute_nefivenaxi_popasulugibuda.pdfIn PDF document text
- http://files.sitiaoceanides.com/uploads/1/3/0/7/130740316/tunupebozafimaz.pdfIn PDF document text
- http://files.wats-on.co.uk/uploads/1/3/1/3/131398333/nosebide-wemiwakojale-jelovusolotud-dulobumewenerep.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/1/0440/7430/3638/files/cytoplasmic_male_sterility_in_maize.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/7901/6360/files/68042714221.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/0571/4338/files/xabuvojisu.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/0755/7275/files/13442318021.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0438/0921/0528/files/vuvuterozenidajusarerunu.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0440/5175/9269/files/papyrus_of_ani_egyptian_book_of_the_dead.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/6167/4133/files/zubusexilulibozebamofad.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/6891/4838/files/monitoring_and_evaluation_officer_job_description.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/1638/8761/files/14574674483.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/5357/2515/files/senuberaroza.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/4170/9462/files/lifizegemezepamoti.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/5150/8131/files/rebogoro.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_off00006ba2.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6BA2 | 5152 bytes |
SHA-256: 5f5988a768eda5360f54ece36468283d912c743e400b20fb7d742be4ad967a45 |
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font_01_sfnt_off00007d47.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7D47 | 10712 bytes |
SHA-256: d6ae90365bababfaa283b0312409f2f2dd7c5f87e31faec5dd24aac264f5bd21 |
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