MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious Link
The PDF contains a link that redirects to a known malicious domain, identified by the PDF_MALICIOUS_REDIRECTOR_LINK heuristic. The document body, though heavily obfuscated, contains the text 'Cognitive theory of emotion pdf' and the malicious URL, suggesting a lure to trick users into clicking the link. The PDF also contains a large number of external links, as indicated by the PDF_SEO_LINK_FARM heuristic, which are likely part of a link farm to improve search engine ranking for malicious content.
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.cc/wb?keyword=cognitive%20theory%20of%20emotion%20pdf In PDF document text
- http://files.howlinghillsranch.com/uploads/1/3/2/7/132740352/bonikuso.pdfIn PDF document text
- http://files.voiceofgreg.com/uploads/1/3/1/4/131437005/jitinigaxebefowo.pdfIn PDF document text
- http://files.rayslicenseplates.com/uploads/1/3/1/0/131070912/9af1da1ba57d.pdfIn PDF document text
- http://files.sharkteamone.com/uploads/1/3/1/0/131070192/daridepuwul_fanamiso_guzigojomo_zapebojejib.pdfIn PDF document text
- http://files.automature.com/uploads/1/3/0/7/130775554/vupelavemukatefobe.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/1/0428/0962/2691/files/39956312050.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/6120/6422/files/tonubowukozumurawuzil.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0450/1933/2766/files/electronic_devices_and_circuits_objective_questions_and_answers.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/7755/8681/files/pisulidipetemimubumowe.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/6127/0935/files/ode_to_joy_violin.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/2756/9576/files/jugereruli.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/9027/2675/files/acceptance_definition.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/6503/9261/files/kanunuxopidojodugiduw.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/91960476686.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0440/2679/0053/files/angeles_y_demonios_google_drive.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0438/3349/1613/files/basic_principles_of_cost_accounting.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/0583/6438/files/troy_bilt_super_tomahawk_chipper_shredder_manual.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_off00006434.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6434 | 5104 bytes |
SHA-256: c881c19f57b7804096de4820b3aa35e6a525ac8144a725d934a6b5dddc518bdb |
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font_01_sfnt_off00007575.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7575 | 9900 bytes |
SHA-256: 1f833c830425e6a184bb555f2344b8b57b161cf83811350cbebb8a0a9a953917 |
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