MALICIOUS
202
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.001 User Execution: Malicious Link
T1059.001 Command and Scripting Interpreter: PowerShell
The PDF contains a malicious redirector link disguised as a download button, aiming to lure users to a malicious site. It also features a link farm with numerous external PDF links, likely for SEO manipulation or to host further malicious content. The primary malicious URL identified is https://ttraff.ru/wb?keyword=best%20histology%20book%20pdf.
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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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/wb?keyword=best%20histology%20book%20pdf In PDF document text
- http://files.ayatechnologies.net/uploads/1/3/0/7/130775174/momupovu-foduvenakomefaf-retavog-pepizapuzez.pdfIn PDF document text
- http://files.skippysfrenchtoast.com/uploads/1/3/0/7/130775734/rijepidokasewama.pdfIn PDF document text
- http://files.woodlandsfrenchies.com/uploads/1/3/1/3/131383553/buvomagedax_dopiriveluk.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/1/0433/6523/6886/files/jupisizudeparururuw.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0427/7141/5196/files/labokivobuwisuluf.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/1265/2194/files/tipojowe.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0451/7291/6373/files/atos_administrativos_estratgia.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0440/7335/3381/files/basic_english_grammar_betty_schrampfer_azar.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/2396/5080/files/types_of_advertising_strategies.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/5733/8776/files/cambridge_academic_english_upper_intermediate_teacher_s_book.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/8482/4222/files/54945696248.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/3683/4968/files/petawigaxuxetamuzusame.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/7396/2145/files/mutualism_and_commensalism.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/0023/3112/files/vididimikozabis.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/5582/5567/files/38347825295.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/8992/0154/files/dajajogotumorifaxe.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/4343/8242/files/bemegorunesafazib.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 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off00006750.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6750 | 5352 bytes |
SHA-256: 73b169306c3b62aa40a3b1577c693d03b152f5ed910e639b06ed81f04026408f |
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font_01_sfnt_off00007988.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7988 | 1800 bytes |
SHA-256: a36eee06fef6ce219692c4ec918276ac99413e4fd1e3666e4031624f9289d620 |
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font_02_sfnt_off00008215.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x8215 | 13832 bytes |
SHA-256: 7bfd0203022f46aed7b8246f37c8c493dec295ef8d377e644ce3bc633ecca2bb |
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