MALICIOUS
234
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious Link
The PDF contains a large number of embedded links, many of which point to Shopify domains hosting other PDFs, but one critical link redirects to a known malicious redirector at 'ttraff.ru'. This suggests a link farm or SEO poisoning tactic designed to drive traffic to malicious infrastructure. The ML classifier strongly supports the malicious nature of this PDF.
Machine Learning
- Nyx PDF Classifier malicious score 1.0000
Heuristics 6
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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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PDF link to algorithmically-generated URL high PDF_RANDOM_URL_LINKPDF contains a clickable HTTP(S) link whose host looks algorithmically generated (pronounceable-random labels) and whose path/query carries a long high-entropy token. This is the randomized-redirector pattern of malspam phishing lures — the visible document is only a prompt — not a PDF parser vulnerability.
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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=labrinth+jealous+sheet+music+pdf In PDF document text
- http://files.digitalmarketingeducationatsiena.com/uploads/1/3/1/8/131872037/3bf2a.pdfIn PDF document text
- http://files.threelyonscreative.com/uploads/1/3/0/7/130776065/ed0e7.pdfIn PDF document text
- http://popim.aleksandarmatovski.com/uploads/1/3/1/0/131070447/pugifejuvatuwex.pdfIn PDF document text
- http://files.marketing-truth.net/uploads/1/3/1/0/131069879/9629543f0.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/1/0434/2621/8136/files/begajugopebu.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/8451/3440/files/30145805929.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/5535/7858/files/cash_inflow_and_outflow_statement_examples.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0438/3434/3586/files/autoimmune_paleo_diet.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0439/4385/4235/files/icthlarin_s_little_helper_rs3.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/3061/8011/files/46624684144.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0439/3671/0824/files/64239812817.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/4070/9527/files/dogadogabuxuxi.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0440/1391/2222/files/red_dead_redemption_xbox_360_gamestop.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/4135/7977/files/1308554597.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/7983/4531/files/89212602086.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/zemeletitofugawekabol.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0427/4647/8759/files/73924173027.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 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off00005261.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x5261 | 5552 bytes |
SHA-256: 540a4f102b3f0d74e7a2492edd1c3bd72118db856aa471d4957e923d01a19c17 |
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font_01_sfnt_off00006513.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6513 | 9660 bytes |
SHA-256: 384e03b67bd7f64e40d1402e86eb3cdcaf96fdc1205dc800c05439a6bb71ca97 |
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font_02_sfnt_off00008664.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x8664 | 16120 bytes |
SHA-256: fb7b45e24c28c4473d0ca1c6410c593992d9a809009f9c41b5ae32c9142507dd |
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