MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
The PDF contains a critical heuristic firing for a malicious redirector link pointing to 'ttraff.ru'. Additionally, it features a large number of embedded links, many hosted on Shopify, suggesting a link farm for SEO manipulation or distribution. The document body, though heavily obfuscated, contains the text '4k video er site' and the malicious URL, indicating a lure to a potentially 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=4k+video+er+site In PDF document text
- http://files.drsa-web.com/uploads/1/3/1/4/131410747/120b8ae9147fa7.pdfIn PDF document text
- http://xepore.byboukje.nl/uploads/1/3/1/4/131406390/1427479.pdfIn PDF document text
- http://files.simplyyogacenter.org/uploads/1/3/1/8/131856046/nilubamakipepamage.pdfIn PDF document text
- http://files.outonalimbdance.com/uploads/1/3/0/7/130775679/bomovoxugolil.pdfIn PDF document text
- http://files.dr-yakirov.com/uploads/1/3/2/7/132711983/fijazegeriduzos-bexotudijufupu-terivoj-sinoro.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/1/0437/0300/9434/files/mexubegerixafizutasofura.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0454/6196/2910/files/24827855102.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/1979/5623/files/electronics_instrumentation_lab_manual.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/1503/5288/files/4175768174.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/8333/3799/files/estudio_sobre_el_bautismo_cristiano.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/9482/5376/files/22672318215.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/8578/1405/files/2760403052.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/2619/4336/files/87020207685.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/6193/5261/files/44497892133.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/pedarivorenali.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/0100/4707/files/statistical_methods_by_s._p._gupta_free.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/3853/0965/files/32225204936.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/7337/1288/files/risuwaxovo.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0441/4255/9384/files/69072719789.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_off00004f45.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x4F45 | 5588 bytes |
SHA-256: 55f2a905493e907d4e77114350fa82490d840768baccdb2b72e66563e5f8c59c |
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font_01_sfnt_off000062cb.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x62CB | 4692 bytes |
SHA-256: bcb1304996b9d462047b0b2eeb50c517adb6bfa27e1929ae5820b0de1581678b |
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font_02_sfnt_off000072d6.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x72D6 | 12044 bytes |
SHA-256: 952a9097899f733ee3c041e378b18f35b081476c632caaabc93a3fac5fe6ebb9 |
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