MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
T1203 Exploitation for Client Execution
This PDF document contains numerous links designed to create an SEO link farm, directing users to a malicious redirector. The primary redirector URL is https://ttraff.ru/pify?keyword=understanding+and+using+english+grammar+book+pdf, which is flagged as malicious. The document's structure and embedded links suggest a phishing or scam attempt, likely to download further malware or redirect to a credential harvesting page.
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=understanding+and+using+english+grammar+book+pdf In PDF document text
- http://files.gloucestershiregatewaytrust.org.uk/uploads/1/3/1/3/131398125/dubesamamivudi.pdfIn PDF document text
- http://files.tagst.net/uploads/1/3/1/3/131380604/12f3ca0c47fc0d4.pdfIn PDF document text
- http://files.saskstealth.net/uploads/1/3/0/7/130740320/karelenawe_jegedem_kexusurabirupe.pdfIn PDF document text
- http://rajojokuw.jacktaylorphillips.com/uploads/1/3/1/6/131637316/pajilobusuduk.pdfIn PDF document text
- http://files.mikejdonovan.com/uploads/1/3/1/3/131379296/tukifotozijudawip.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/1/0430/6993/1673/files/58569299532.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0427/8992/9116/files/88764562800.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/6663/0050/files/40365378338.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/13170590630.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/1770/7425/files/wuniwuzurugubelono.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/5657/8212/files/39913789796.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/53295895336.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/3486/9921/files/raloxejimikaboz.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0427/5470/3526/files/darkest_hour_cheats.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/1631/4277/files/96145260952.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0440/9671/6952/files/97319456365.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/4163/5997/files/zuduwumisaduxazixuzav.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0440/1712/3486/files/best_ebook_reader_ipad.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 4
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off00006d9d.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6D9D | 5652 bytes |
SHA-256: 5cf0e7456e54f892fb90220db2828b64f4fbf12253e7e71827d4e359860ea84a |
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font_01_sfnt_off0000809d.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x809D | 2576 bytes |
SHA-256: 5b39e9209f2f5823ace8c91dcdd9d22e48f67d4c3a8bd5da9fa9055417ac3ba4 |
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font_02_sfnt_off00008a5b.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x8A5B | 9988 bytes |
SHA-256: e20b9f73747d6fe8a99214307164a348f37e1efd9203b6e1b64deafe19fc7718 |
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font_03_sfnt_off0000ac7e.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xAC7E | 16780 bytes |
SHA-256: 735e795b4d16529a49140ac7f40a22111760e3f1c48d6bea317f9a0d5f86c05c |
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