MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious Link
The PDF file contains numerous embedded links, a technique often used for SEO poisoning or to redirect users to malicious sites. One critical heuristic identified a link to a known malicious redirector, 'https://ttraff.ru/pify?keyword=bsc+botany+books+pdf', which is likely intended to deliver a secondary payload or phish for credentials. The document body, though heavily obfuscated, contains the same lure text and URLs, reinforcing the social engineering aspect of this attack.
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=bsc+botany+books+pdf In PDF document text
- http://files.fremontfd.com/uploads/1/3/1/4/131455475/gusixolibufikon-zidovavuwasok.pdfIn PDF document text
- http://files.getwirelessnz.com/uploads/1/3/0/7/130775606/zarijisonob-kovalefobopez-rolozevu.pdfIn PDF document text
- http://giwed.vvrengineering.com/uploads/1/3/1/4/131407227/4a3ed4132.pdfIn PDF document text
- http://files.theadaptedbook.com/uploads/1/3/0/9/130969699/2709380.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
- https://cdn.shopify.com/s/files/1/0431/8891/2290/files/rizafubig.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/2278/6466/files/ribisakefe.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/3724/6118/files/23957848227.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0436/8993/5002/files/lopedisisepugig.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0427/6033/9623/files/8476445784.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/2572/6625/files/98948256673.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/2745/5400/files/goxudupupedosafaru.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/6383/6834/files/8610870601.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/89709194360.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/1820/6887/files/arcadia_deck_plan.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0438/0744/1053/files/david_deangelo_books.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0438/1809/0653/files/bovazabififap.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 5
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off00007734.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7734 | 5376 bytes |
SHA-256: f574c992abc08cfedffaa1d50b17aa0f9afd16c8b704fa3b66783a40dcf41e15 |
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font_01_sfnt_off0000898f.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x898F | 3204 bytes |
SHA-256: 35c0a746fcdf55e64f2ba55209f6a139fa5d4ea47dce36c63c78d1e6d66b29b6 |
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font_02_sfnt_off00009680.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x9680 | 2576 bytes |
SHA-256: 7c39ce28624f4542f75b1ffc8145173145833d4531dc284b7a223e4ff974262f |
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font_03_sfnt_off0000a176.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xA176 | 10516 bytes |
SHA-256: 8fcf441067aeeb7ffce57449b37db60c79d766bdf4e1d3d5e7bc0152be05ae13 |
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font_04_sfnt_off0000c562.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC562 | 16260 bytes |
SHA-256: bcccb725c9682f8e52dc21f4dbed28cfeb791f33e6a2205b1cf2355c7010a67b |
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