MALICIOUS
196
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF contains numerous external links, many of which are SEO-optimized to appear as legitimate search results for educational topics. The primary malicious URL, https://seumenha.ru/award?keyword=integral+calculus+application+problems+with+solutions+pdf, is likely a phishing or malware distribution point. The ClamAV detection and ML classifier strongly indicate malicious intent, classifying it as a phishing trojan.
Machine Learning
- Nyx PDF Classifier malicious score 0.9998
Heuristics 6
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ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTIONClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
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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://seumenha.ru/award?keyword=integral+calculus+application+problems+with+solutions+pdf PDF link annotation
- https://s3.amazonaws.com/patilawasu/ilive_bluetooth_headphones_manual.pdfIn PDF document text
- https://fabuduviwanor.weebly.com/uploads/1/3/4/7/134739750/9923600.pdfIn PDF document text
- http://buxodubofazaki.iblogger.org/chicco_bravo_trio_travel_system_stroller_manual.pdfIn PDF document text
- https://jitijukuvag.weebly.com/uploads/1/3/4/7/134743274/15892.pdfIn PDF document text
- http://melidagerukebel.sportsontheweb.net/xukod.pdfIn PDF document text
- https://s3.amazonaws.com/lokijuronig/92618180750.pdfIn PDF document text
- https://komibaxes.weebly.com/uploads/1/3/1/6/131606619/gokos_rapanalisikez_xisobebofov.pdfIn PDF document text
- http://kelimap.mywebcommunity.org/38198025444.pdfIn PDF document text
- https://jumabesabixoduz.weebly.com/uploads/1/3/4/3/134368642/22a5186.pdfIn PDF document text
- https://s3.amazonaws.com/vososasoxumete/mikivobaka.pdfIn PDF document text
- https://s3.amazonaws.com/lebejos/mobagimeromex.pdfIn PDF document text
- https://s3.amazonaws.com/wibadinavosunom/online_student_attendance_management_system.pdfIn PDF document text
- http://nogezat.iblogger.org/58418517743.pdfIn PDF document text
- http://zawopim.mygamesonline.org/nojatowawosox.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- http://lijowavatajo.myartsonline.com/an_enquiry_concerning_human_understanding_full_text.pdfIn PDF document text
- https://ec5c17a1-061e-4a2c-a9e6-b3561ba71229.filesusr.com/ugd/299074_ffa73e77833748f59b1ec99070213f79.pdf?index=trueIn PDF document text
- https://02ee9779-94d6-4ec7-959f-c0f99fe19a35.filesusr.com/ugd/cdc607_f5663f3b74fe4e8ba22954ca7429eff0.pdf?index=trueIn PDF document text
- https://24218389-b518-4ca3-8548-65eaf758daa4.filesusr.com/ugd/c836c3_96168b459c6d4309ac47590ce45702e8.pdf?index=trueIn PDF document text
- http://jadivepijuga.myartsonline.com/chromophores_and_auxochromes.pdfIn PDF document text
- https://f26e6bca-ce10-4524-9610-ed5ef7c8d48b.filesusr.com/ugd/ac8c68_d961269319034ad788f468a3f24d89b9.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_off00015137.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x15137 | 5736 bytes |
SHA-256: 23fa0807beacccf8f4c576d9120079285c9dd3e1975176d0b7c6a32a17e0a7c6 |
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font_01_sfnt_off0001649d.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1649D | 12788 bytes |
SHA-256: 526dc40502a8555a84eaf609041de790072914105d12518d6ea8f3e47ecb967d |
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font_02_sfnt_off000190be.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x190BE | 16144 bytes |
SHA-256: fb10e5badbbf29d6a05184c763452604a6d256f7c208a2bb674868c670b14a78 |
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