MALICIOUS
236
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF document contains numerous links, many of which are part of an SEO link farm designed to redirect users to various websites. One heuristic specifically identifies a link farm with 30 external PDF links, and another points to a redirector for 'free-download phishing'. The ML classifier and ClamAV detection strongly indicate maliciousness. The embedded URLs and the nature of the heuristics suggest a phishing or malware distribution attempt.
Machine Learning
- Nyx PDF Classifier malicious score 0.9985
Heuristics 7
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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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PDF link to algorithmically-generated URL high PDF_RANDOM_URL_LINKPDF contains a clickable HTTP(S) link whose host looks algorithmically generated (pronounceable-random labels) and whose path/query carries a long high-entropy token. This is the randomized-redirector pattern of malspam phishing lures — the visible document is only a prompt — not a PDF parser vulnerability.
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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://gimoguvi.ru/award?keyword=the+art+book+big+ideas+simply+explained+pdf PDF link annotation
- https://komamezumef.weebly.com/uploads/1/3/1/3/131398541/leparobasub_wulewezaxe_nakerujutijusas.pdfIn PDF document text
- http://rojepaj.iblogger.org/70788413529.pdfIn PDF document text
- http://tesepaxe.iblogger.org/pofibonefa.pdfIn PDF document text
- http://golesaluwo.66ghz.com/buzarirerobenefexiraneb.pdfIn PDF document text
- https://motixovelubebov.weebly.com/uploads/1/3/6/0/136085904/9391d0a2c9d.pdfIn PDF document text
- http://vuzitofakomuj.22web.org/96114014666.pdfIn PDF document text
- https://wadasowodasi.weebly.com/uploads/1/3/5/3/135316150/lufom_woson_pufif_sexabid.pdfIn PDF document text
- http://fitixezuveseli.22web.org/kipadanopoteribogodefi.pdfIn PDF document text
- https://pavonaxasove.weebly.com/uploads/1/3/5/3/135310158/dugesivenasudu_netefesuvowig_wekugutalefij_zesoxewoj.pdfIn PDF document text
- https://vogavova.weebly.com/uploads/1/3/1/6/131606390/2865a.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- http://www.daltonmaag.com/In PDF document text
- https://s3.amazonaws.com/baxekojojexusol/best_sale_on_beats_pill.pdfIn PDF document text
- http://bukuzagalu.rf.gd/is_eating_ice_chips_bad_for_your_teeth.pdfIn PDF document text
- https://s3.amazonaws.com/wovugi/gisesopaturatisivep.pdfIn PDF document text
- http://temalefedamoj.epizy.com/error_o._s._b._d._loggingfailureanalysisreporter.pdfIn PDF document text
- https://s3.amazonaws.com/rutufokedizon/pipazoxuzejipipalaf.pdfIn PDF document text
- https://s3.amazonaws.com/degisapemifa/serrate_suture_information.pdfIn PDF document text
- http://wazikaje.rf.gd/61222280313.pdfIn PDF document text
- https://s3.amazonaws.com/wegugus/64594577818.pdfIn PDF document text
- http://muzezal.rf.gd/assassins_creed_1_highly_compressed.pdfIn PDF document text
- https://s3.amazonaws.com/legobegutulo/chain_reaction_game_free.pdfIn PDF document text
- http://mesuwirafifi.rf.gd/mr._bean_holiday_movie_in_tamilrockers.pdfIn PDF document text
- http://tezipibuboxigo.epizy.com/xulefo.pdfIn PDF document text
- https://s3.amazonaws.com/suxuzubojut/why_cheat_india_full_movie_pagalworld._com.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 4
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000fbfc.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFBFC | 5568 bytes |
SHA-256: b4e10135bd5b8f2063d6f5254c374bbb75506f0412e30a3141d2085fe4c743a5 |
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font_01_sfnt_off00010eca.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10ECA | 5896 bytes |
SHA-256: 27facea08f760b6c9ccffc63dc3354f6ddb502aa9495885ea4bb65c44df333a7 |
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font_02_sfnt_off00011f1c.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11F1C | 15520 bytes |
SHA-256: 6a508e51bfc42bea9cbcb0469d3b5e21f9cfd7ca8a8ad923fed9eef36cac5f63 |
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font_03_sfnt_off00014a89.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x14A89 | 4324 bytes |
SHA-256: d1f4a20f0e35a0564be54678b929bb8c711862c507f070c2b9a6abea8daf4378 |
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