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 a redirector service. The primary redirector URL is https://ttraff.ru/pify?keyword=contrastive+analysis+and+error+analysis+keshavarz+pdf, which is known to lead to malicious infrastructure. The document body itself is heavily obfuscated but contains references to the redirector and other PDF files hosted on various domains, suggesting a link farm designed to distribute malware or phishing content.
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=contrastive+analysis+and+error+analysis+keshavarz+pdf In PDF document text
- http://files.uniteoffshore.net/uploads/1/3/1/0/131070846/wimikawigaxuwe_bodavigir_vejibejovosewu.pdfIn PDF document text
- http://dewugejot.artwithross.com/uploads/1/3/0/7/130775350/kafizunaduluvedala.pdfIn PDF document text
- http://files.thetruthsayerswoodstock.com/uploads/1/3/1/8/131856277/9944731.pdfIn PDF document text
- http://divojer.nancyives.com/uploads/1/3/0/7/130738970/namapivufenuki.pdfIn PDF document text
- http://files.q72spiceco.com/uploads/1/3/2/6/132695418/ritiwex_faseb_karuxisaxebusat.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/1/0437/0094/5048/files/zagomifa.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/8693/7248/files/43773409712.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/7075/7795/files/16099560263.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/0429/7375/files/33656998118.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/1042/3960/files/9767529497.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/3685/9813/files/basagefigal.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/2284/4067/files/investigating_biology_laboratory_manual_8th_edition.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/8326/0314/files/dorikavawosil.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/4189/0208/files/ds4windows_minecraft_profile.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/9302/5183/files/8265666865.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/9660/4825/files/pip_install_pyserial.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/8412/8151/files/vitosu.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/3089/6026/files/27055341832.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_off00004e08.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x4E08 | 5308 bytes |
SHA-256: 7d922a725df01930a04643c593cd149619002adf71a20aa3f45b6de2e41813b6 |
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font_01_sfnt_off00006024.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6024 | 9228 bytes |
SHA-256: 97bed80651d854e67b6e3a0e26d2a6b279568ff0ef47897b0919cb6f67125562 |
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font_02_sfnt_off00007fe7.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7FE7 | 17000 bytes |
SHA-256: c51d8d04dda7ef1bf63c7e07fd1f95d15e6c468513810fe57a9e67705f1546af |
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