MALICIOUS
186
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
This PDF document was flagged as malicious by ClamAV and an ML classifier. The file embeds a large number of external links characteristic of an SEO link farm. Specific URLs and indicators for this sample are listed in the indicators section.
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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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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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://mezovuduw.ru/strik?utm_term=princeton+review+ap+calculus+ab PDF link annotation
- https://static.s123-cdn-static.com/uploads/4446280/normal_5fe4fe8cc649d.pdfIn PDF document text
- http://meselur.22web.org/ipa_phonetic_symbols_with_examples.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4449399/normal_601134e854040.pdfIn PDF document text
- http://wspring.space/zirizohx0cp.pdfIn PDF document text
- http://interior.estate/what_is_a_wild_card_game_in_baseball47j1p.pdfIn PDF document text
- http://procripton.com/zogurukedaj3z1d3.pdfIn PDF document text
- http://gtmedis.com/28887704324wck11.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4418370/normal_6026903279faf.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- https://7ec9ed57-df89-401a-953b-45744c150cee.filesusr.com/ugd/6e3131_83a0bd3d5e1142d8a26925878b49a9c6.pdf?index=trueIn PDF document text
- https://1a441fb4-51dd-4528-a053-eb59ff664e18.filesusr.com/ugd/43d9d5_28b971b44a264dabb7dad3961ef477da.pdf?index=trueIn PDF document text
- https://1160a196-6e18-49bd-931c-438029629b47.filesusr.com/ugd/40338c_4b37ce3d384b47959cbf8f84986909fb.pdf?index=trueIn PDF document text
- https://dacf5b84-f80e-4bd8-bb7f-22aad20a1cd8.filesusr.com/ugd/285be4_cdcb559097c44bdeaf41963e9da1e8bf.pdf?index=trueIn PDF document text
- https://c84ffda1-e72a-45fa-8ce8-a771970cf326.filesusr.com/ugd/9fd656_20c501241c684df98f7b437156ce0dd8.pdf?index=trueIn PDF document text
- https://49550882-97ce-44db-a38b-6e383bb81149.filesusr.com/ugd/062c90_cd0fbd1a2b7a489da479f63646e8dcbc.pdf?index=trueIn PDF document text
- http://fefekug.rf.gd/98950773273.pdfIn PDF document text
- https://a0d2adcf-75bd-42a9-a42a-c23e1c6e9e1a.filesusr.com/ugd/85c99c_78bc16b0203245c086693095daaebf0d.pdf?index=trueIn PDF document text
- https://s3.amazonaws.com/novipaliwid/bifoxexerewadumoz.pdfIn PDF document text
- http://bizijituluwod.rf.gd/28862943356.pdfIn PDF document text
- https://ebc1add8-0b9d-418e-9e4a-1e287827e933.filesusr.com/ugd/ab63e3_21f37cf7997643e1adfdb41850b876a6.pdf?index=trueIn PDF document text
- http://belomaruterimos.epizy.com/55482918096.pdfIn PDF document text
- https://0c6b7a74-1ca0-41da-943c-c268a208a416.filesusr.com/ugd/fef373_a4b676cb1ddf4930bb7ef3f85d8dcd92.pdf?index=trueIn PDF document text
- https://s3.amazonaws.com/rodiligarexo/vukazadamudiwepur.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_off0000c522.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC522 | 5220 bytes |
SHA-256: cc8c3965440d51f97ac794cdffb509ab0ad91168d5100c014db8f58913a0b0a9 |
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font_01_sfnt_off0000d6ff.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD6FF | 9624 bytes |
SHA-256: cee08b1fcc57964e59c57a9a850ba84f9397381c879b98ebc4e549ce0b3dca85 |
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