MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
The PDF contains numerous embedded links, with a critical heuristic firing indicating a link to known malicious redirector infrastructure. The document body, though heavily obfuscated, contains the URL 'https://ttraff.cc/pify?keyword=antibiotics+microbiology+pdf', suggesting a lure to a malicious site. The presence of a large number of external PDF links also points to a link farm or redirection strategy.
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.cc/pify?keyword=antibiotics+microbiology+pdf In PDF document text
- http://files.tylerleighnicholson.com/uploads/1/3/1/4/131453194/woluraxupejew_vevusufoxiv_gesatuvakav.pdfIn PDF document text
- http://files.nickfesette.net/uploads/1/3/1/6/131606330/bcaff59445.pdfIn PDF document text
- http://files.courtneykobata.com/uploads/1/3/1/3/131383621/kamopuf.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/1/0432/1892/7778/files/xisuretomaviwesofegilu.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/8776/4387/files/82570361105.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/2403/9592/files/mumokigazot.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/setixinojed.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/0933/5715/files/45542038525.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/9281/1669/files/fases_de_la_meiosis_1_y_2.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/4185/7448/files/rakavirifivovabarolek.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/9575/2864/files/8110933592.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0439/1239/6968/files/24838793796.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/0687/0183/files/publication_502_irs.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/4112/8601/files/60328537615.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/1631/4277/files/5578351520.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/8417/5773/files/60787000238.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0439/4477/1739/files/zalulujafesuxor.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_off0001836c.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1836C | 5168 bytes |
SHA-256: 8c0b598eaba65ea9261beab9ff914aef8141a6ffed53b8fbf8bc5af6a8a0fd9e |
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font_01_sfnt_off000194d6.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x194D6 | 12556 bytes |
SHA-256: 0bdf49ded9ef008c3e3d586930c5e6e24c7c5c97c4e0ba7a5cf3638838c808e4 |
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font_02_sfnt_off0001bdde.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1BDDE | 4324 bytes |
SHA-256: 05d2457133b820fa77aa358e30e9acfbad3f04c46ced9a37296d9311117db176 |
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