MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious Link
The PDF contains a prominent link that redirects to a known malicious infrastructure, as indicated by the PDF_MALICIOUS_REDIRECTOR_LINK heuristic. The document body and embedded URLs suggest a lure for downloading books, which is a common tactic for distributing malware. The ML_NYX_PDF_MALICIOUS heuristic further supports the malicious classification.
Machine Learning
- Nyx PDF Classifier malicious score 0.9999
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.com/pify?keyword=ba+1st+year+books+pdf+download In PDF document text
- http://files.leadpyramidpublishing.com/uploads/1/3/1/0/131070469/b18ede3.pdfIn PDF document text
- http://files.vitalvisionstraining.com/uploads/1/3/1/4/131437276/bb5c59583ec66.pdfIn PDF document text
- http://files.jacobsearslibrary.org/uploads/1/3/2/3/132302924/9321265.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- http://fedorahosted.org/lohitIn PDF document text
- http://www.daltonmaag.com/In PDF document text
- https://cdn.shopify.com/s/files/1/0433/7532/9441/files/32916561949.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/7510/9013/files/mikewupevijupibo.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0441/1329/7560/files/95101216032.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/4827/2023/files/7436600269.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/5162/2306/files/miragela.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/4059/5352/files/bedroom_design_catalogue.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/1381/6995/files/gejinufiliwonukanabur.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0438/7173/1880/files/41270827564.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/1758/4283/files/weed_eater_push_mowers.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0427/7927/9527/files/useful_russian_phrases.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0436/8770/6774/files/zemuwap.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 6
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000602f.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x602F | 5272 bytes |
SHA-256: c2fa02d9886921b149fe8e9bea7195e3d0bd5c75efc761d832eb42fa6a5c3e04 |
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font_01_sfnt_off00007240.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7240 | 2596 bytes |
SHA-256: 82c047ac093810968bc043e1395e19a776fddf61b5ae473d26a3e46c73460b1c |
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font_02_sfnt_off00007dc3.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7DC3 | 2320 bytes |
SHA-256: 5e067315a2bd9524b6254977960f062bb129990ed69868068e29b4596197f3c8 |
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font_03_sfnt_off00008816.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x8816 | 10208 bytes |
SHA-256: 151d62a6800b20264b3a7e246b6a99f0a493920cb286efd8dd31be9df0202cb5 |
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font_04_sfnt_off0000ab3c.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xAB3C | 16224 bytes |
SHA-256: a349519ccbdbca3d75704c2becf615ab37801eb1543272228454131dceb83acc |
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font_05_sfnt_off0000c089.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC089 | 4324 bytes |
SHA-256: 05d2457133b820fa77aa358e30e9acfbad3f04c46ced9a37296d9311117db176 |
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