MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
T1204.002 Malicious Link
The PDF file contains multiple heuristics indicating malicious intent, specifically a redirector link to a known malicious domain and a large number of external PDF links, suggesting a link farm for SEO manipulation or traffic redirection. The primary malicious URL identified is https://ttraff.ru/pify?keyword=analisis+numerico+espol. While no scripts were extracted, the presence of these indicators strongly suggests the document is designed to lure users to malicious infrastructure.
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=analisis+numerico+espol In PDF document text
- http://files.aubreyrosefalk.com/uploads/1/3/2/3/132302928/pivub_pibepuro_naseruk.pdfIn PDF document text
- http://niwase.cincyshawn.com/uploads/1/3/2/6/132682124/1948848.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/1/0433/0687/7080/files/kerikelamizefebimu.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0438/3267/2418/files/accumulator_hydraulic.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/7516/5594/files/99556397605.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0438/9509/5464/files/81779807172.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/1456/9640/files/dadorowuvonumu.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0463/3513/1809/files/3589628822.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/9480/9512/files/ssc_mathematics_books_free_download.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/5147/5366/files/business_plan_powerpoint_presentation.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/6490/1284/files/donexefomanege.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0465/0211/7528/files/49110740671.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/3926/8770/files/abematv_video_helper.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 4
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off000128a3.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x128A3 | 5068 bytes |
SHA-256: 29b6e61f1b412952b1ada30cfbea93fec1993c1701c0f3d5155b1f45f93113e0 |
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font_01_sfnt_off0001397f.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1397F | 1412 bytes |
SHA-256: 2621ae85e3060e61d2808ed1c49439c82c1aacb14c690e808a03b7c3c321c95c |
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font_02_sfnt_off00014134.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x14134 | 15944 bytes |
SHA-256: 79937a9aceee291025d81962b05903e34ea1935985d24defc57fa68e144784cd |
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font_03_sfnt_off00017326.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x17326 | 16584 bytes |
SHA-256: b3a04685fef114a653d43745cbfa88e191e6d5b912dd6f901aa82af31c58a385 |
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