MALICIOUS
204
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF file exhibits characteristics of a phishing or malware distribution lure, indicated by the 'PDF_SEO_LINK_FARM' and 'PDF_SEO_UTM_REDIRECTOR_LINK' heuristics. It contains numerous external links, with a primary redirector pointing to 'https://mezovuduw.ru/award?keyword=gauge+theories+in+particle+physics+aitchison+pdf'. The 'SE_DOWNLOAD_BUTTON' heuristic further suggests a deceptive user interface aimed at tricking users into downloading further malicious content. ClamAV detection confirms its malicious nature.
Machine Learning
- Nyx PDF Classifier malicious score 0.9989
Heuristics 7
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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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Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTONDocument contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
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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://mezovuduw.ru/award?keyword=gauge+theories+in+particle+physics+aitchison+pdf PDF link annotation
- https://cdn-cms.f-static.net/uploads/4451555/normal_601581cb3483f.pdfIn PDF document text
- https://s3.amazonaws.com/kelageketisefuv/attitude_shayari_in_english.pdfIn PDF document text
- https://s3.amazonaws.com/zategafozasiru/purble_place_android.pdfIn PDF document text
- https://s3.amazonaws.com/lanaladu/fivolaw.pdfIn PDF document text
- https://s3.amazonaws.com/rikolesafuwofar/88194880485.pdfIn PDF document text
- http://obschee.xyz/58143143452ensa6.pdfIn PDF document text
- https://s3.amazonaws.com/rebomedug/kokoro_natsume_soseki_review.pdfIn PDF document text
- http://p-kavkaza.ru/best_build_for_curse_of_strahdkft34.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4458622/normal_5fec381342f20.pdfIn PDF document text
- https://s3.amazonaws.com/lewuli/worimef.pdfIn PDF document text
- https://benezome.weebly.com/uploads/1/3/5/4/135400217/2d4b2c0c0f.pdfIn PDF document text
- http://topstudy.fun/80783755946ful6n.pdfIn PDF document text
- https://s3.amazonaws.com/kikunojulejuj/ansible_template_owner_group.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4484990/normal_5fd71c4d8568b.pdfIn PDF document text
- https://s3.amazonaws.com/nefunupu/subaru_forester_2019_user_guide.pdfIn PDF document text
- https://resagivet.weebly.com/uploads/1/3/1/3/131383325/sajifetepipakaxagude.pdfIn PDF document text
- https://durezeneb.weebly.com/uploads/1/3/4/2/134235042/a2710d8970e.pdfIn PDF document text
- http://zathkatow.xyz/digamozaruxoxadegurekowvm8tx.pdfIn PDF document text
- https://s3.amazonaws.com/zarusegibitumet/23190163871.pdfIn PDF document text
- http://psyhologrzn.ru/sexusakegukokatafa4ck5.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4412584/normal_603c62821ac1f.pdfIn PDF document text
- https://zavelodenewiguj.weebly.com/uploads/1/3/5/3/135314669/dagaguv-bejawerov-finaw.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- https://77a80da1-97a3-4b40-ba11-54c6d232eb66.filesusr.com/ugd/39a0fd_06c54a622a904e1cb409165e9521457e.pdf?index=trueIn PDF document text
- https://28481333-1ef2-46fb-8ebf-d56c3f24acbc.filesusr.com/ugd/314c35_921cabf2b53d45edb6e5b54b3b1ce0bf.pdf?index=trueIn PDF document text
- https://7ec9ed57-df89-401a-953b-45744c150cee.filesusr.com/ugd/6e3131_7ab54565b88e4ee49c4f342a0fdff0b6.pdf?index=trueIn 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_off000106d9.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x106D9 | 5548 bytes |
SHA-256: 11de3db5f8f921e020874afef29cdd566ebeeaf70385e53f26460d27d32ae100 |
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font_01_sfnt_off000119bd.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x119BD | 16912 bytes |
SHA-256: 4822d73941e60aaf6096ef51b97f29864143354b2c54f1c40fb7207f0acc2b35 |
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font_02_sfnt_off00014e20.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x14E20 | 16248 bytes |
SHA-256: 7f10b5217708b7aced76a9c7cd02a51188d2af7235ea23585d094f6560042d0f |
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