MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
The PDF contains a link that redirects to a known malicious infrastructure, as indicated by the PDF_MALICIOUS_REDIRECTOR_LINK heuristic. The document body, though heavily obfuscated, contains the URL 'https://ttraff.ru/pify?keyword=book+for+learning+japanese+pdf', suggesting a lure to a malicious site. The PDF_SEO_LINK_FARM heuristic indicates a large number of outbound links, many hosted on cdn.shopify.com, 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.ru/pify?keyword=book+for+learning+japanese+pdf In PDF document text
- http://files.brooksidestable.com/uploads/1/3/0/7/130776277/6be61d551d.pdfIn PDF document text
- http://nowazoj.dimmittchamberofcommerce.com/uploads/1/3/0/8/130814328/razoka_zepedonekuxab_ponajuziwa_beniwoxedapotew.pdfIn PDF document text
- http://nipavig.clarelouiseburnett.com/uploads/1/3/1/4/131437363/gibazebowujes.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/1/0431/6479/5044/files/lisowugenuwepe.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/2471/9773/files/blanchard_macroeconomia_italiano.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0436/3082/1529/files/sejobogalaful.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/9586/8057/files/regajewoji.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/0892/5602/files/sebozuxitef.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/1737/1797/files/32954122297.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/0305/2191/files/anime_apk_firestick_2019.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/5933/9679/files/65054905494.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/8419/3697/files/expanding_tactics_for_listening_free_download.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/0649/2831/files/xalufo.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/0553/2569/files/vefidojakusefubo.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/3197/0471/files/52660785765.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/5203/0357/files/rejawoji.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
- http://dejavu.sourceforge.netIn PDF document text
- http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text
Extracted artifacts 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off00006d41.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6D41 | 5400 bytes |
SHA-256: c8a2f77fb2f216349f176eb8c5fa21633df2188711af42e1c4b77ca9f2f5162d |
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font_01_sfnt_off00007fb0.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7FB0 | 10640 bytes |
SHA-256: 6a6719fd18ec18f9cf1edaa305c6d2ebdddafb331a1fd489e169c035d0b1839a |
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font_02_sfnt_off0000a438.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xA438 | 16076 bytes |
SHA-256: 28b54622314fe970c10f0b8fb2e7509d8ab364d8e49f98911ef247a77c086d7b |
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