MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains numerous external URIs and link farm patterns, indicating a likely phishing or malware distribution attempt. The ClamAV detection and ML classifier strongly suggest malicious intent. While no scripts were explicitly extracted, the PDF structure and embedded URLs point towards a malicious document, likely delivered as a spearphishing attachment.
Machine Learning
- Nyx PDF Classifier malicious score 0.9708
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 link farm points to compromised-WordPress upload storage medium PDF_COMPROMISED_CMS_UPLOAD_LINK_FARMPDF contains multiple clickable links, across many distinct hosts, whose targets are random-slug files parked in the upload directories of vulnerable WordPress form plugins (FormCraft, Super Forms). This is the hallmark of the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains hosted on compromised sites. The PDF itself carries no exploit — the risk is the linked destinations.
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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://laborke.ru/uplcv?utm_term=analysis+and+algebra+on+differentiable+manifolds+pdf
- https://fertilizergranulatorprice.com/d/files/wazobuduwoloz.pdf
- http://fkhd.cz/data/img/4765594214.pdf
- http://frederickfollows.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/160a369472a6b5---39197946156.pdf
- https://mikepromedia.com/wp-content/plugins/super-forms/uploads/php/files/ugngn1qtejpk3bk1kbj2q74784/babaxuge.pdf
- https://wavesmaroochydore.com/wp-content/plugins/super-forms/uploads/php/files/4kvbn9fe9jv0ggupfm2ao48gj5/naxedibezove.pdf
- http://www.eflox.net/wp-content/plugins/formcraft/file-upload/server/content/files/1607ab0b09d386---4407978296.pdf
- https://theshairpodcast.com/wp-content/plugins/super-forms/uploads/php/files/c599621c9c87989ee9949be24cffcf78/23614549334.pdf
- https://webmodeli.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608d11cb5f579---fukizasubisedeweboxa.pdf
- https://medius.sk/userfiles/file/kapinemasodaruxugem.pdf
- http://kaufdeinauto.de/wp-content/plugins/formcraft/file-upload/server/content/files/160c1909dbd350---buxopovowuj.pdf
- http://glotecgh.com/upload/editor/file/36894434787.pdf
- https://vizzzio.ru/wp-content/plugins/super-forms/uploads/php/files/b98a717f44dca53c5b931ea56cae3bfb/21423228963.pdf
- https://www.scanworld.se/wp-content/plugins/formcraft/file-upload/server/content/files/160987d1d96d97---lopozo.pdf
- http://alituncer.com/userfiles/file/56109311005.pdf
- https://sanxuattrucauthangkinh.com/Images_upload/files/rozagixifezojikegejuf.pdf
- https://www.3dreamchurch.com/wp-content/plugins/super-forms/uploads/php/files/5c66fac7baedae437ffda798170036b7/85009563168.pdf
- http://www.whirlpool-beachcomber.at/wp-content/plugins/formcraft/file-upload/server/content/files/160776592af8d6---padipixuvibevune.pdf
- https://www.bluegreenshouseboats.in/wp-content/plugins/formcraft/file-upload/server/content/files/1609854282be8a---83459230126.pdf
- http://jevades.com/aircraft/fckimages/file/12694154620.pdf
- https://avenue102.com/uploads/file/21419156864.pdf
- https://torrentclub.vip/wp-content/plugins/super-forms/uploads/php/files/3cbk4v8o0ffeml8dq47ctf3iof/jabemesudopanirosuluf.pdf
- https://www.tonygssoulfood.com/wp-content/plugins/super-forms/uploads/php/files/1ab34193f4b984a9427380e88ec42daa/xutujavap.pdf
- https://arte-salon.ru/upload_picture/7380125948.pdf
- http://dnepropress.net/files/file/kimoso.pdf
- https://miamivanservice.net/wp-content/plugins/formcraft/file-upload/server/content/files/160ac851c894c7---bajoduzudaxetawikilijur.pdf
- http://www.w3.org/1999/02/22-rdf-syntax-ns#
- http://purl.org/dc/elements/1.1/
- http://ns.adobe.com/pdf/1.3/
- http://ns.adobe.com/xap/1.0/
- http://ns.adobe.com/xap/1.0/mm/
- http://ns.adobe.com/xap/1.0/rights/
- http://dejavu.sourceforge.net
- http://dejavu.sourceforge.net/wiki/index.php/License
Extracted artifacts 4
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off000198fe.bin484c51c2131494f806c8c9b73be7a5c8ebf90afe0aad9f966df85c8f89701a65 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x198FE | 11076 bytes |
font_01_sfnt_off0001b267.binfdce80906b9ebbcedd98adc8514869d314b0e3febe6a18b782686d6cc355fd2c |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1B267 | 21356 bytes |
font_02_sfnt_off0001ebb6.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1EBB6 | 16792 bytes |
font_03_sfnt_off000203c7.bin325c5f5cda05429ae92d15c23118ca1b8712e485108c584e1e30b0ff615913b7 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x203C7 | 16084 bytes |
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