MALICIOUS
194
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, suggesting a link farm or SEO manipulation tactic. One critical heuristic identified a link to a known malicious redirector, ttraff.com, which is likely the primary malicious payload delivery mechanism. The document body itself is largely obfuscated but contains the text 'Bactérias gram positivas e negativas pdf' and the malicious redirector URL, indicating a lure to disguise the malicious intent.
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.com/pify?keyword=bact%25C3%25A9rias+gram+positivas+e+negativas+pdf In PDF document text
- http://temaz.forsythtavern.com/uploads/1/3/0/7/130739430/veravumudez.pdfIn PDF document text
- http://files.clintonstarsfc.com/uploads/1/3/1/6/131606434/6075816.pdfIn PDF document text
- http://files.mattfilmsltd.ca/uploads/1/3/1/3/131380175/tezakafu.pdfIn PDF document text
- http://files.rcoathletics.com/uploads/1/3/0/9/130969046/vagutanop_vibogudifojed.pdfIn PDF document text
- http://files.mcbaronfootball.com/uploads/1/3/2/3/132302735/zewosozofosazi.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/1/0435/9385/9231/files/wuvozipeluduwimoku.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/7983/5547/files/joxubodajawobovabenebe.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/6676/9051/files/80625601339.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/0058/6649/files/90086104942.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/8801/8598/files/football_manager_2015_graphics.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0438/5452/8677/files/risk_management_policy_statement.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/0010/3073/files/zezewuvig.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/4107173541.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/8123/6634/files/manual_and_automation_testing_interview_questions_and_answers.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0439/0453/2648/files/73278261267.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
Extracted artifacts 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off000066cd.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x66CD | 5480 bytes |
SHA-256: 5586519a7da4e4cd623c035884012e8ba3c50d2dc73b67a7a0480f2de7ac7830 |
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font_01_sfnt_off0000791d.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x791D | 12660 bytes |
SHA-256: 80b2d44371c9a56e873ac0d72aabe60c513bebca9c9c6c00a9ffd08785cdcddc |
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font_02_sfnt_off00009f90.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x9F90 | 4324 bytes |
SHA-256: 05d2457133b820fa77aa358e30e9acfbad3f04c46ced9a37296d9311117db176 |
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