MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious Link
The PDF file was identified as malicious due to its inclusion of a large number of external links, a technique often used for SEO spam or to redirect users to malicious sites. One critical heuristic firing specifically flagged a link to a known malicious redirector at 'ttraff.ru'. While the document body contains garbled text, the presence of numerous links, including one pointing to a malicious redirector, strongly suggests an attack pattern focused on link manipulation and traffic redirection.
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=chocolate+day+whatsapp+video+status In PDF document text
- http://bened.cosypossum.com.au/uploads/1/3/1/8/131871721/bomitujoxekeboki.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/1/0437/4849/1415/files/8861257077.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/nimapudusakodinufuzexive.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/2647/2345/files/7206292079.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/7628/7648/files/23907315940.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/4159/4266/files/chogada_song_mp4_pagalworld.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0427/8085/2383/files/samonenajawunom.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/1300/5724/files/history_of_biomass_energy.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/7699/3695/files/19604956084.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0427/6027/4087/files/tax_amnesty_scheme_2020.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/2224/5273/files/risk_assessment_methodologies.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/8508/6364/files/kindergarten_worksheets_missing_letters.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0438/4918/7493/files/35089479521.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_off00005d7b.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x5D7B | 5120 bytes |
SHA-256: c4823024e26eec9d312808727f560983d24e252f7b434a3e77138823e0b150ce |
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font_01_sfnt_off00006f12.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6F12 | 14032 bytes |
SHA-256: ff1ce8d73d9d8ede5fdcb4e540c222d615cc9c2ced22bb97f2d5072dffaf7b6f |
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font_02_sfnt_off00009ad0.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x9AD0 | 16204 bytes |
SHA-256: 541fa2b6826b0add99b7d5a173ef1e6a5567607b5192f75b810eb17d6a563501 |
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font_03_sfnt_off0000affe.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xAFFE | 4324 bytes |
SHA-256: 1062cd8ddf90f4344fa193b395386d5669df1a952e5759311ca261a71931f361 |
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