MALICIOUS
196
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF contains numerous external links, many pointing to other PDFs, suggesting a link farm or SEO abuse tactic. The primary lure URL, 'https://seumenha.ru/award?keyword=econometrics+by+example+solutions+pdf', is designed to trick users into downloading further malicious content. The ClamAV detection and ML classifier strongly indicate malicious intent, likely related to phishing or malware distribution.
Machine Learning
- Nyx PDF Classifier malicious score 0.9995
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=econometrics+by+example+solutions+pdf PDF link annotation
- https://cdn-cms.f-static.net/uploads/4452835/normal_5fd19b2443c36.pdfIn PDF document text
- http://vuwadezizubem.22web.org/software_alcohol_120_free.pdfIn PDF document text
- http://mufezupep.iblogger.org/is_there_a_sketch_app_for_ipad.pdfIn PDF document text
- http://jelexak.iblogger.org/38103328769.pdfIn PDF document text
- http://natenezen.22web.org/ruxevu.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4370778/normal_5fdb2769c527e.pdfIn PDF document text
- http://mivigodaxi.iblogger.org/microsoft_visual_basic_2010_book.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4412413/normal_603746f768fad.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- https://s3.amazonaws.com/lupuvogotog/gisekisofef.pdfIn PDF document text
- https://s3.amazonaws.com/visagogijulep/xuvipozuzenolonepubu.pdfIn PDF document text
- https://add83a7c-0e31-48b3-928b-061d82ba9144.filesusr.com/ugd/205ae4_a993cf46b214411a971b861f80d8621f.pdf?index=trueIn PDF document text
- http://nuzavaxevarap.epizy.com/62505063967.pdfIn PDF document text
- https://s3.amazonaws.com/paxivogedewilu/wofasisunakaxewofebuvul.pdfIn PDF document text
- http://rugeritubaduw.epizy.com/vande_mataram_tamil_hd_video_song.pdfIn PDF document text
- https://s3.amazonaws.com/gofiguj/engagement_ring_guide_for_guys.pdfIn PDF document text
- https://s3.amazonaws.com/mukut/zone_leveling_guide_vanilla_wow.pdfIn PDF document text
- https://2a983b51-2e13-4971-8c1f-a5bca3ab4353.filesusr.com/ugd/e1a791_7b734e85b40a4fcb9a04b3b44ee3defb.pdf?index=trueIn PDF document text
- https://s3.amazonaws.com/gupawupigawono/chemical_reviews_proposal_template.pdfIn PDF document text
- https://s3.amazonaws.com/xasovewipeje/what_is_the_best_cordless_phone_with_call_blocking.pdfIn PDF document text
- https://s3.amazonaws.com/xomudufe/simitasizulawebadoti.pdfIn PDF document text
- https://f770b3d7-c897-40e0-9323-5ad0abd91552.filesusr.com/ugd/1fa6dd_f0b375c50858426285d89c90212ff4d6.pdf?index=trueIn PDF document text
- https://s3.amazonaws.com/fejatepudopito/search_text_linux.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
- https://savannah.gnu.org/projects/freefont/In PDF document text
- http://www.gnu.org/licenses/In PDF document text
- http://www.gnu.org/copyleft/gpl.htmlIn 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_off0000fca1.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFCA1 | 6744 bytes |
SHA-256: 0eac1552a6a0cc8d6d43e14f5c157d052ff2bf21460314f67a2c213e0a454e63 |
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font_01_sfnt_off00010d88.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10D88 | 5568 bytes |
SHA-256: 5dd9e0dd2a09e3ae8cde416441ae4303cdf3d2db504c7e086c79942e2e66e879 |
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font_02_sfnt_off0001206d.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1206D | 11108 bytes |
SHA-256: 8335d0dcaf8e0883f69228e9a6341bebd33ab64c1a0f3a0e6d4ce89ae7e90788 |
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