MALICIOUS
244
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF contains a large number of embedded links pointing to external PDFs hosted on various domains, many of which appear to be disposable. This behavior is indicative of a link farm, potentially for SEO manipulation or to distribute further malicious content. The ClamAV detection and ML classifier strongly suggest malicious intent, aligning with a phishing or trojan distribution pattern.
Machine Learning
- Nyx PDF Classifier malicious score 0.9996
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://yafferge.ru/award?keyword=ascomicetos+caracteristicas+pdf In PDF document text
- https://cdn-cms.f-static.net/uploads/4377663/normal_601e6450d45de.pdfIn PDF document text
- https://noparerekum.weebly.com/uploads/1/3/4/6/134639333/7119093.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4413843/normal_603456ad9e9d9.pdfIn PDF document text
- https://fasiwuwazaxeba.weebly.com/uploads/1/3/1/4/131438460/lubemaserafagoke.pdfIn PDF document text
- https://jefexalenu.weebly.com/uploads/1/3/4/8/134865696/noroka.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4451545/normal_5fee6683c48c6.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4469143/normal_6054f3ab50ee5.pdfIn PDF document text
- https://ziwivebagojub.weebly.com/uploads/1/3/1/8/131871618/vefika-bopas-bijexitof.pdfIn PDF document text
- https://wiwamimojuwat.weebly.com/uploads/1/3/0/8/130813692/5746886.pdfIn PDF document text
- https://kenomuxi.weebly.com/uploads/1/3/4/0/134042647/dewad-kelefanujef-pejamu.pdfIn PDF document text
- http://gugataze.iblogger.org/fezazozejotesisewitim.pdfIn PDF document text
- https://gixoxiri.weebly.com/uploads/1/3/4/7/134707295/7183bfb9cb4ae.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- https://uploads.strikinglycdn.com/files/a98f62fb-5304-4b11-8dd5-91bb4d6f48c9/technivorm_moccamaster_79212_kbts.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/8b9bd242-c124-49fd-a968-2e78f0274ffe/51436305167.pdfIn PDF document text
- http://webuvur.epizy.com/10318354379.pdfIn PDF document text
- http://zamoguwudegovo.rf.gd/best_budget_spreadsheet_for_ipad.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/6ead5ca4-13cf-4b44-9def-109d32017ce7/canon_powershot_a720_sd_card_capacity.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/17c6836e-6642-4fd0-b9e2-5256f3a46398/lalagidefibetofinuges.pdfIn PDF document text
- http://tuxusar.epizy.com/94186479718.pdfIn PDF document text
- http://sizixezaratog.rf.gd/63982442329.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/1621e1fd-ba46-43ed-bd98-792656ae4f8f/bogidal.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/2965cb7c-c777-4a75-bc34-57ba03a91c73/66816001942.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 2
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000e92d.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE92D | 5260 bytes |
SHA-256: feeb0e331a4806c2e62d4a2ea9b5ab4d38afcb15f764f587948e129ffa50db2d |
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font_01_sfnt_off0000faf8.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFAF8 | 11172 bytes |
SHA-256: 97d7ba389ad9579f0d548e3cf73d3acdcfdf2aa178944ddf6796dd68073b2037 |
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