MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
This PDF document contains numerous links, many of which point to a redirector service (ttraff.ru) that is known to host malicious content. The document body, though obfuscated, includes the same redirector URL and a list of other PDF links, suggesting a link farm or SEO poisoning tactic to lure victims. The ML classifier also strongly indicated maliciousness.
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.ru/pify?keyword=explain+biot+savart+law+and+its+applications+pdf In PDF document text
- http://niboxe.imural.ca/uploads/1/3/1/1/131163635/gibejo_figizuxogowofu.pdfIn PDF document text
- http://files.limbachengineering.com/uploads/1/3/0/7/130775659/pufoverufijovabaz.pdfIn PDF document text
- http://files.modernterrain.com/uploads/1/3/0/7/130776609/tamis-nilubawulofiv-satemu.pdfIn PDF document text
- http://files.jingarriguewine.com/uploads/1/3/0/8/130874086/5cfc01.pdfIn PDF document text
- http://tudabo.beinghumaninstem.com/uploads/1/3/0/7/130738731/fodotobusiwo-lajakiru.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/1/0429/2476/9436/files/xufetizezoxedafuxas.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/90067119925.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/1504/4254/files/33040564249.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/0965/4440/files/6675416158.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/3213/3278/files/blank_monthly_calendar_printable.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/1350/5185/files/49088060939.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/2936/4885/files/ragufebukudadewoz.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/4296/3613/files/clicker_heroes_import_save.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/1839/4523/files/gidaxoliwiwupulo.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0427/5427/7532/files/58469191047.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/6255/7856/files/37718162658.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_off00008bfd.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x8BFD | 5468 bytes |
SHA-256: 810b5fba1806205e850bc17ad2f722c9aaf2397bc7cf528aafc66173b2ab5d78 |
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font_01_sfnt_off00009eb8.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x9EB8 | 14440 bytes |
SHA-256: 8a09dc9b85057f74fd7fa1b087705d379d4feb74796d793a68e3d7e8fd72a6be |
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font_02_sfnt_off0000cd0d.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xCD0D | 16360 bytes |
SHA-256: fc35389c2e2a06a7b077fc07806c8300942c154599eea5a4803257a9bff5f45c |
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