MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF document contains a large number of links, many of which point to compromised WordPress upload directories or disposable hosting. This indicates the file is designed to act as a link farm, likely to distribute phishing content or further malware. The ML classifier and ClamAV detection strongly support its malicious nature.
Machine Learning
- Nyx PDF Classifier malicious score 0.9806
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 http://reutlinger.pl/userfiles/file/xubuvojesodu.pdf
- https://www.truesdalepainting.com/wp-content/plugins/formcraft/file-upload/server/content/files/160afb6ec8a601---vikiwezekisowapujorirafi.pdf
- https://jennysbooks.com/wp-content/plugins/super-forms/uploads/php/files/7154dad6aeb92217fa1a43f46291b4d6/22141271410.pdf
- https://asigurareingermania.ro/wp-content/plugins/super-forms/uploads/php/files/iodvu7pq8no5gtsakauo7cpqd0/99766468080.pdf
- http://gerd-pollak.de/userfiles/file/jabosexox.pdf
- https://atlasautoglass.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607975194d4b3---gowuxinagafagitez.pdf
- https://giustofiori.it/file/bamubosobagawetaru.pdf
- http://asirius.su/wp-content/plugins/super-forms/uploads/php/files/1faba0f2ae45730abc01bf4c8bf85d3c/83733979660.pdf
- http://escuelasfutbol8.com/docs/files/6872513508.pdf
- http://www.la-rocca.pl/app/webroot/files/files/2724183134.pdf
- https://www.novet.de/wp-content/plugins/formcraft/file-upload/server/content/files/1607f59aeaf275---42104412039.pdf
- http://pamatudarbai.lt/ckfinder/userfiles/files/ladidudafutipogegexe.pdf
- http://nowator-zpu.pl/userfiles/file/71778911445.pdf
- http://begemot-rus.com/uploadfiles/file/2021062905582873499.pdf
- http://humanitool.ru/userfiles/file/15359080308.pdf
- http://artmetinc.com/wp-content/plugins/formcraft/file-upload/server/content/files/16079369dadd74---43851323517.pdf
- http://csc-0411.com/userfiles/file/20210614041435_k110dr.pdf
- http://www.petercar0937494634.com/upload/img/files/67189793015.pdf
- http://www.megasaludips.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a1fafd8c573---gufuveruwiponawavet.pdf
- https://totalyoumovement.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607d4d62d1de5---titewo.pdf
- http://allnatureint.com/userfiles/file/1902703372.pdf
- https://sckprime.com/wp-content/plugins/super-forms/uploads/php/files/c76c1270d7d5a8449334ffc06342af29/mefetazufafowukajaro.pdf
- http://accessiblevehicleservices.com/userfiles/file/pexawowofujepipetij.pdf
- https://alphaveneers.co.uk/wp-content/plugins/super-forms/uploads/php/files/9ce8568e52073b9e27b5cd3346b8aa24/nabulidifonodexo.pdf
- https://www.cfo-search.com/wp-content/plugins/formcraft/file-upload/server/content/files/160d67f9a32676---jowaj.pdf
- http://plenaadoracao.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/160b0fcc8df208---gexifobotilovuputu.pdf
- http://www.combatsim.eu/wp-content/plugins/formcraft/file-upload/server/content/files/16072e632ce0af---walimofixekofovuledi.pdf
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/1xuhb7AK25c/uplcv?utm_term=who+are+the+4+richest+man+in+the+world
- 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 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off00010f45.bin39fc2ebc8046935970c0f37c0b84780cbd0643b2b8de9e09377e9effa11a16f3 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10F45 | 10792 bytes |
font_01_sfnt_off0001280d.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1280D | 16792 bytes |
font_02_sfnt_off0001401f.binf96c3d83fb47655241a6fbd1e5f444cc5a978feda763c52b2d83579ce4732f21 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1401F | 18848 bytes |
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