MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF contains numerous links to external resources, with a critical heuristic firing for a malicious redirector URL (https://ttraff.ru/pify?keyword=chain+rule+pdf). This indicates an attempt to direct users to a malicious site, likely for phishing or to download further malware. The document body, though heavily obfuscated, also contains the redirector URL and several benign-looking Shopify links, suggesting a link farm or SEO poisoning tactic to disguise the malicious intent. No scripts were extracted, but the presence of embedded URLs and the malicious redirector strongly suggest a malicious intent.
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=chain+rule+pdf In PDF document text
- http://files.aprilfordart.com/uploads/1/3/0/8/130814355/7210755.pdfIn PDF document text
- http://files.heynoldsinc.com/uploads/1/3/0/9/130969942/fikisefu-vubixazosivavo-nomaxarinikimu-minuxixo.pdfIn PDF document text
- http://files.lebeerjedi.com/uploads/1/3/1/3/131398221/9575605.pdfIn PDF document text
- http://files.dougandjaciscreations.com/uploads/1/3/0/7/130776031/6550158.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/1/0436/6876/6873/files/talodafilatatamirobofuxa.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/6635/2028/files/28591218890.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0440/1650/0886/files/halloween_history_worksheets.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/3123/2661/files/biwopemarif.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/1715/0368/files/jetekegememu.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0439/2160/4763/files/83065960515.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/2385/8850/files/nightcore_song_downloads.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/2239/3244/files/runibotiwewefoxur.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0427/5660/4070/files/70257969997.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/8762/5369/files/tevukatunogo.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0439/8628/8798/files/58495810094.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/37394074323.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/8400/5032/files/gaxukewosot.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_off0000d500.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD500 | 4856 bytes |
SHA-256: ffbca76f0555306608c562b9fea7a17d13ea75320759494b2591941476b3ed25 |
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font_01_sfnt_off0000e577.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE577 | 16044 bytes |
SHA-256: bb15f4ef5c8c86d771f489346dbccd02064183ee3a58f78c9af73bafa0f4cdbe |
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font_02_sfnt_off000118cb.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x118CB | 16400 bytes |
SHA-256: d420125af5e62fbac872e96b34d821323033756d7cda7fe7e25375a42b028be8 |
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