MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
The PDF file contains a large number of embedded links, many of which point to a redirector service. The heuristic 'PDF_MALICIOUS_REDIRECTOR_LINK' indicates that one of the primary URLs leads to known malicious infrastructure. The 'PDF_SEO_LINK_FARM' heuristic further suggests that the document is designed to host a large number of external links, likely for SEO manipulation or to distribute malicious content. The document body is heavily obfuscated and contains metadata indicating it was generated by wkhtmltopdf, a tool often used to create PDFs from web content, further supporting the link-based attack vector.
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=introduction+to+seismic+interpretation+hart+pdf In PDF document text
- http://files.halfmoonyogaandart.com/uploads/1/3/2/6/132695517/8318793.pdfIn PDF document text
- http://files.paoniacherrydays.com/uploads/1/3/1/4/131438667/dcdaf9782a9a9.pdfIn PDF document text
- http://files.benstillsings.com/uploads/1/3/2/3/132303147/a2a5f3fc1.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/1/0431/7826/2692/files/39225339280.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0427/8393/2582/files/danuxudigedoz.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0439/2304/6568/files/63200258225.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0439/3644/8667/files/lageviri.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/9403/2025/files/xuvenomikanijivaxijunofa.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/7492/9319/files/39169314413.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/6245/1611/files/2997225295.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/1010/4228/files/bizasezifolisipafibosoku.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/7086/5052/files/topegevinujegon.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/9493/2640/files/fujokivulitupuja.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/8148/2919/files/kujumusufezukatiwoz.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/8691/3431/files/monazodugegiloruve.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/8289/9871/files/kejep.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/9634/9602/files/72949943315.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_off0000df51.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDF51 | 5184 bytes |
SHA-256: 7ca4980251af0bdd62613550ec9d13418e15ece144a356e90a859ca99677fe68 |
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font_01_sfnt_off0000f0bc.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF0BC | 15792 bytes |
SHA-256: f85105ccbbb58103c71f2c3b4f910067b93eef7c2b8886d846e9630d751af279 |
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font_02_sfnt_off000121bc.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x121BC | 16116 bytes |
SHA-256: ba04679cbc7368f9890885b57c2b0d1aeb6d4f863cf9ecec45405187c742a2cd |
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