MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious Link
The PDF file contains a large number of embedded links, many of which point to a redirector service. The primary malicious link identified is https://ttraff.ru/pify?keyword=multivariate+data+analysis+pearson+new+international+edition+pdf, which is known to lead to malicious infrastructure. The document body itself is heavily obfuscated and contains what appears to be a reference to the malicious URL, suggesting the document's purpose is to facilitate redirection to a harmful site.
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=multivariate+data+analysis+pearson+new+international+edition+pdf In PDF document text
- http://joseguwom.louisvilleccc.org/uploads/1/3/0/7/130739267/4513056.pdfIn PDF document text
- http://vopizari.westcoastmuddypawz.com/uploads/1/3/0/8/130814328/7a6ed0.pdfIn PDF document text
- http://sotules.zerohourtimes.com/uploads/1/3/2/6/132696158/tozarawezezupilizi.pdfIn PDF document text
- http://files.gdcus.org/uploads/1/3/0/8/130873839/dakira.pdfIn PDF document text
- http://files.unklemikesplace.com/uploads/1/3/1/3/131380915/jawejevulenujo-vevisida-wodurefafin-dololejonozore.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/1/0428/0261/0335/files/89447151941.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/6334/5301/files/savage_arms_shotgun.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/3837/5074/files/data_structure_algorithms_tutorial_tutorialspoint.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0447/9365/9543/files/annex_14_icao.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/6728/4387/files/btec_level_3_construction_and_the_built_environment.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0439/2802/7304/files/97684282333.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0439/2956/7387/files/43264206169.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/8561/0654/files/ibps_po_2020_download.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/1100/4821/files/download_from_issuu.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/2211/3173/files/riesgos_laborales_enfermeria.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0436/2646/3392/files/59756446831.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/4519/9784/files/tirogigo.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_off000050c2.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x50C2 | 5296 bytes |
SHA-256: b0466740ccdc9aeca605f521086e4e397d08070c79363bfb4fa4be1872cb4474 |
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font_01_sfnt_off000062f8.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x62F8 | 10088 bytes |
SHA-256: ca6f805f1844f200a51ac7fdcea4d52d4d77c1599b102d81ddf059ed5adb6838 |
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