MALICIOUS
244
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF contains a large number of links to external websites, many of which are hosted on disposable domains, indicating a link farm or SEO poisoning tactic. One critical heuristic identified a link to known malicious redirector infrastructure. The document body, though heavily obfuscated, appears to contain search terms related to a book, suggesting a lure to drive traffic to these malicious sites. No scripts were extracted, but the PDF structure itself facilitates the redirection.
Machine Learning
- Nyx PDF Classifier malicious score 0.9998
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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PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINKPDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
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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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Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARMSmall PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
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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://crophysi.ru/award?keyword=los+sue%25C3%25B1os+de+helena+eduardo+galeano+pdf+descargar In PDF document text
- http://tidedejix.iblogger.org/aprendizaje_activo_definicion.pdfIn PDF document text
- http://padusapagim.iblogger.org/thyristor_triggering_circuit.pdfIn PDF document text
- https://xuzuvakewose.weebly.com/uploads/1/3/1/6/131637797/berasivad-femenusima.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4473403/normal_5fe72e015a7b5.pdfIn PDF document text
- https://lijipowurop.weebly.com/uploads/1/3/4/3/134314174/pofuwisovo_buvuraki_juruwo_wigegexowani.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4490264/normal_601cce7950a65.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4481161/normal_60502b737d278.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://50037ee0-0691-4a53-bdc2-b2f8f795cfa6.filesusr.com/ugd/b41a9a_0bd24faa1ffc4fae96838e24515a2fe7.pdf?index=trueIn PDF document text
- http://munakazoxan.epizy.com/a_song_of_ice_and_fire_full_character_list.pdfIn PDF document text
- http://sabulawum.rf.gd/historia_del_espiritismo_arthur_conan_doyle.pdfIn PDF document text
- http://xepolowamozuxan.rf.gd/zufufexiseniwibeku.pdfIn PDF document text
- https://9e6c4f0b-3406-4274-bf8a-5be7f948d240.filesusr.com/ugd/45c6ff_52ea50de5cd448019cfa9971cbf3334c.pdf?index=trueIn PDF document text
- http://denufukis.epizy.com/522416001.pdfIn PDF document text
- https://8546b567-499d-44cb-812b-f4cb210fa0cc.filesusr.com/ugd/1f0b74_2e588e2ddf974013bae0acc4c66a35dd.pdf?index=trueIn PDF document text
- http://kelukotezowopob.epizy.com/nudagokekobef.pdfIn PDF document text
- https://b7eb3c74-9f10-4efd-a612-efb7ea03662f.filesusr.com/ugd/7198c1_1921c11ad326478f994dfe057e8ec703.pdf?index=trueIn PDF document text
- https://4be8a7ba-6c9a-47a4-99fc-a5961b41a404.filesusr.com/ugd/132250_f0175c8c72f74c5289b58efbfcf575da.pdf?index=trueIn PDF document text
- http://fuvovidesom.epizy.com/calvary_reformed_church_orland_park.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 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000e1c3.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE1C3 | 5324 bytes |
SHA-256: 883c67cfa8149098c3b38eac899b6cb80f7b580dea88a0ef029e586123ffc888 |
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font_01_sfnt_off0000f38a.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF38A | 12720 bytes |
SHA-256: 382819cf5ae2e723ecdbc0a7bc53ddac34c84bc02d1315ecbd4fb13912cdcf0c |
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font_02_sfnt_off00011c40.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11C40 | 4324 bytes |
SHA-256: d1f4a20f0e35a0564be54678b929bb8c711862c507f070c2b9a6abea8daf4378 |
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