MALICIOUS
226
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF file contains a large number of links to external PDFs hosted on various domains, many of which appear to be disposable or dynamically generated. The heuristic firings indicate a link farm designed to distribute content, and ClamAV detection confirms its malicious nature. The ML classifier also strongly flagged this PDF as malicious, suggesting it is part of a phishing or malware distribution campaign.
Machine Learning
- Nyx PDF Classifier malicious score 0.9997
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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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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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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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://jacksth.ru/wix?keyword=soccer+games+unblocked+world+cup PDF link annotation
- http://salimom.mygamesonline.org/durga_saptashati_argala_stotram.pdfIn PDF document text
- https://xekawipafamut.weebly.com/uploads/1/3/4/3/134328312/xaben.pdfIn PDF document text
- https://vukuzimina.weebly.com/uploads/1/3/4/1/134109202/buzatedudix.pdfIn PDF document text
- https://zomutelisofo.weebly.com/uploads/1/3/4/7/134712892/7989407.pdfIn PDF document text
- https://nigukaxo.weebly.com/uploads/1/3/1/4/131453065/93834730d.pdfIn PDF document text
- https://nutifikidejuz.weebly.com/uploads/1/3/4/3/134347692/f0d161501c.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4470400/normal_602779981d934.pdfIn PDF document text
- http://topstudy.fun/kigovizelununekoan3qe.pdfIn PDF document text
- https://xotufidew.weebly.com/uploads/1/3/1/8/131856134/5579251.pdfIn PDF document text
- https://zemedabumudog.weebly.com/uploads/1/3/2/7/132712209/551545574f12379.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4407991/normal_600fd2966a13a.pdfIn PDF document text
- http://melidagerukebel.sportsontheweb.net/97352028796.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4393785/normal_602a51918bb9e.pdfIn PDF document text
- http://walletelectrum.buzz/blue_red_balloons_clip_artwlr6v.pdfIn PDF document text
- https://mupexopuwes.weebly.com/uploads/1/3/4/7/134722910/3556389.pdfIn PDF document text
- http://sokolov.fun/sesibedoririkexizogoxosalewmlm.pdfIn PDF document text
- http://aycotoro7.xyz/lofumujemobudomaneler3l3u.pdfIn PDF document text
- https://popuvagilubasi.weebly.com/uploads/1/3/4/0/134018524/lasimi.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4417805/normal_600558e84660c.pdfIn PDF document text
- http://women-ita.space/xawojufifutibu4joqe.pdfIn PDF document text
- https://roxasudafuj.weebly.com/uploads/1/3/0/7/130740166/9734986.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn 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 2
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000fcbc.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFCBC | 5792 bytes |
SHA-256: ba23b8c797664021e30b2a5c4c95be61899793ae885ec85e8d83f76fd4e1aafb |
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font_01_sfnt_off0001106d.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1106D | 10688 bytes |
SHA-256: 293fca5666c49eb7e4bc1bd357497cf766d39c01a60c65c346437b0078297d65 |
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