MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
The PDF contains embedded links, one of which, 'https://ttraff.ru/pify?keyword=b.+com+4th+sem+syllabus+pdf', is flagged as a malicious redirector. The document body, though heavily obfuscated, contains text that appears to be a lure for a syllabus, suggesting a phishing or social engineering attack. The ML classifier strongly indicates maliciousness.
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=b.+com+4th+sem+syllabus+pdf In PDF document text
- http://files.gatheringsthrift.com/uploads/1/3/1/4/131407818/478736.pdfIn PDF document text
- http://files.waterselementary.org/uploads/1/3/0/9/130969505/9623557.pdfIn PDF document text
- http://files.vera-ellen.com/uploads/1/3/1/6/131606011/ginujolet_jukakovanew_majubulizalijij_sinamor.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- http://www.daltonmaag.com/In PDF document text
- https://cdn.shopify.com/s/files/1/0436/3301/6982/files/84311043910.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/5847/0813/files/17928812565.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/5756/9189/files/instagramm_for_blackberry.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0436/9799/5941/files/bigumovize.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/6623/6826/files/pusedirijavirab.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/82127534182.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/2378/5370/files/6740496176.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/7940/1634/files/course_registrar_princeton.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0436/1804/2018/files/22355468176.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/4571/6129/files/fodegafalokofomulak.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/9443/2161/files/kotanuvojifeze.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_off000085b2.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x85B2 | 5440 bytes |
SHA-256: a1e21feb086b293d39b27045488ff4d8b9b16be673d20ef57b2f4b13e4fb31e4 |
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font_01_sfnt_off00009839.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x9839 | 2320 bytes |
SHA-256: 5e067315a2bd9524b6254977960f062bb129990ed69868068e29b4596197f3c8 |
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font_02_sfnt_off0000a28c.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xA28C | 10296 bytes |
SHA-256: 5f221765070f0c1e406290629a48e9c9e3f9e41443c461aab46624b70de0170d |
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font_03_sfnt_off0000c60e.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC60E | 16224 bytes |
SHA-256: a349519ccbdbca3d75704c2becf615ab37801eb1543272228454131dceb83acc |
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font_04_sfnt_off0000db5b.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDB5B | 4324 bytes |
SHA-256: cd94ef65598b1866d0653cdd88243d989fd81359c0e770c2d3a4858f1c2f6d34 |
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