MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF contains numerous links, many pointing to a redirector service (ttraff.com) which is flagged as malicious. The document body, though heavily obfuscated, contains text suggesting it is a "Comprehensive aphasia test manual pdf" lure, combined with the presence of embedded URLs, indicating a phishing or redirection attempt. The ML classifier also strongly flagged this PDF as malicious.
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=comprehensive+aphasia+test+manual+pdf In PDF document text
- http://files.gaby-castro.com/uploads/1/3/0/7/130775635/damevupoxi.pdfIn PDF document text
- http://files.dbgs.org/uploads/1/3/0/7/130776218/1077271.pdfIn PDF document text
- http://files.mylittlebiblestudy.com/uploads/1/3/1/4/131437516/141a87f2e4f57.pdfIn PDF document text
- http://files.randolphhamptonfire.org/uploads/1/3/2/6/132695216/kogogoxebi_wowazosuzuz_botiwib_boriv.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/1/0431/0636/9703/files/57095934279.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/7798/2626/files/gavukujibixeruwalagor.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0439/2108/0475/files/biggest_discord_server.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/0910/6332/files/soxinojodasejunerejujesor.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0427/4287/4278/files/vevogeziregiseganezum.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/3502/5831/files/unilever_ghana_annual_report_2020.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/3803/1518/files/43431137047.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/7047/8746/files/50785777551.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/2990/6079/files/72507752149.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/6778/5884/files/77069107632.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/66456909559.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/3212/4312/files/fokuxenowarutewel.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/3817/0526/files/default_nginx_conf.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/4827/9970/files/47533476979.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/3764/6245/files/laruxobo.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_off00006ae8.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6AE8 | 5244 bytes |
SHA-256: 3b4a06479ed561fc0aca1d36157cf709e697040de0cfc02699d9942d672a34cd |
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font_01_sfnt_off00007c94.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7C94 | 9940 bytes |
SHA-256: dc74b7f126e6689cc34b27c2c96305b90deea79627a90320857fad19eac025b6 |
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