MALICIOUS
196
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF contains a large number of external links, many of which point to redirectors designed for SEO and phishing. The primary URL identified, https://golowaki.ru/strik?utm_term=myers+and+twenge+social+psychology+12th+edition+pdf, is used as a lure for a free download. While no scripts were explicitly extracted, the PDF structure and heuristic firings strongly suggest it's part of a link farm or phishing campaign.
Machine Learning
- Nyx PDF Classifier malicious score 0.9997
Heuristics 6
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ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTIONClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
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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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External URI info PDF_URIPDF contains an external URL action
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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://golowaki.ru/strik?utm_term=myers+and+twenge+social+psychology+12th+edition+pdf PDF link annotation
- https://static.s123-cdn-static.com/uploads/4375076/normal_60067456d1360.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4417140/normal_5ffc38403cd2b.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4492915/normal_605711aca7bcb.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4411246/normal_5fced0b662cb9.pdfIn PDF document text
- https://gevofiku.weebly.com/uploads/1/3/4/7/134759045/6627539.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4417214/normal_6033c9501328a.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4486356/normal_601198aac7aaf.pdfIn PDF document text
- https://bumaxaxup.weebly.com/uploads/1/3/4/2/134235918/webaxutozexax.pdfIn PDF document text
- https://deketonozalupu.weebly.com/uploads/1/3/3/9/133997688/dejawose.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4482230/normal_5fcc9d518d9bf.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4450034/normal_600f305e3473c.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4371240/normal_600ff1df9df1e.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4486745/normal_6001ae4aaca0d.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4369520/normal_60663a26757d0.pdfIn PDF document text
- https://jitebosezukazup.weebly.com/uploads/1/3/4/1/134131420/radefavub.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4475572/normal_60149c8ce5544.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4472204/normal_601bdd58e8718.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4458390/normal_606423dfa9b60.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4423195/normal_600614f02e147.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- https://uploads.strikinglycdn.com/files/e6362280-ec96-4585-bdc8-f3bde71c80f9/73172009823.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/573c9bd5-f07e-4137-8aad-f5e2ab952d82/19862279338.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_off0000d5c2.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD5C2 | 5800 bytes |
SHA-256: ec5c8d3d734cd58fa913c53d2197670473f57059e671e17d647946fd325c5214 |
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font_01_sfnt_off0000e9ac.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE9AC | 10160 bytes |
SHA-256: 8f11503ec8700e527e514e9195b3906d59c6f7254d4cae3f3aaf69bf92494114 |
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