MALICIOUS
202
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious Link
The PDF file contains numerous embedded links, a common tactic for SEO link farms and phishing. One critical heuristic identified a link to a known malicious redirector at 'https://ttraff.com/wb?keyword=present%20perfect%20continuous%20mixed%20exercises%20pdf'. Another heuristic flagged the document as a PDF SEO link farm due to the mass of external PDF links. The presence of a 'download button' lure further supports the malicious intent.
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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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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Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTONDocument contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
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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/wb?keyword=present%20perfect%20continuous%20mixed%20exercises%20pdf In PDF document text
- http://files.ofp.cosmo-ufes.org/uploads/1/3/1/8/131872107/ea39f7.pdfIn PDF document text
- http://files.andreatonoli.com/uploads/1/3/0/8/130874238/diranofezoradi.pdfIn PDF document text
- http://files.hartlandseniorcenter.org/uploads/1/3/1/8/131858540/63748.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/1/0440/7702/3384/files/repetir_stem_change.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/28650507632.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0440/0765/3526/files/damefalanuzumafudapopopo.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/3459/7784/files/3rd_conditional_exercises.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0439/3612/0990/files/minecraft_forge_energy.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/5280/1943/files/7158977767.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/8451/2418/files/84248294276.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/9993/9235/files/98336086542.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/4471/6199/files/dasezud.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/37638787324.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/4798/4026/files/62972777751.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/6827/6384/files/xedugakanide.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0427/7790/3263/files/kering_sustainability_report.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0436/4910/6073/files/kitulosipega.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 2
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off00004efb.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x4EFB | 5128 bytes |
SHA-256: e59e74d45bb63e67f35ae437b2f7489f39e192ee18d715fe69b45462067bddd3 |
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font_01_sfnt_off00006053.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6053 | 10280 bytes |
SHA-256: 9146bf4fc522eae255aa2e1e96ae304cfafd2635c969cb797ffef74416b5edbb |
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