MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The ML classifier and ClamAV detection strongly indicate maliciousness. The PDF contains a link farm pointing to numerous external PDF files hosted on various domains, suggesting a phishing or malware distribution campaign. While no scripts were explicitly extracted, the PDF structure and embedded URLs are consistent with techniques used to redirect users to malicious sites.
Machine Learning
- Nyx PDF Classifier malicious score 0.9956
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://rolfingnaples.com/clients/a/a5/a5422f62036d2d393d866963e902351c/File/99128456378.pdf
- https://muratay.nl/userfiles/file/luletasimenuvelelikope.pdf
- https://purebodycare.courses/wp-content/plugins/super-forms/uploads/php/files/c9ealu9lm2ebehrgs7jkthsihu/kifexetuna.pdf
- http://kazenergy.kz/wp-content/plugins/formcraft/file-upload/server/content/files/1608f3f938f99b---48077804727.pdf
- https://medicinasolidale.org/wp-content/plugins/super-forms/uploads/php/files/dc1d5a56a8c1a19b2a1af7b43be9a194/81065566389.pdf
- http://tverzhilservis.ru/foktver.ru/ckfinder/userfiles/files/56195230137.pdf
- http://www.urbanwaterways.info/files/lasexoxamegeri.pdf
- http://ivepe-elearning.gr/assets/UserFiles/mainHome/file/75227650699.pdf
- https://www.hungarianassociation.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607780e4ef2dc---84839611295.pdf
- https://erdenetpost.mn/userfiles/files/xiteva.pdf
- http://heninrealty.com/userfiles/files/ginowivikugesasefepob.pdf
- https://amitadevnani.com/userfiles/file/zalenexeneremefosag.pdf
- http://graphicon.hu/wp-content/plugins/formcraft/file-upload/server/content/files/160a5b7fa31dd0---temitukewurukejuxu.pdf
- http://marketypik.pl/zdjecia/fck/file/66714319438.pdf
- http://yishiweb.com/upfiles/files/20210629_004506.pdf
- http://sam-global.info/files/file/pazoxerorosurotizu.pdf
- http://fiumevivo.it/userfiles/files/vedevodotowuva.pdf
- http://111-orte.de/testarea/cwsCMSlight/media/files/naxafikekakilixox.pdf
- http://mgmkt.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/160aa0de4ca0c1---suwuvakanibetepodut.pdf
- https://www.auditek.fr/wp-content/plugins/formcraft/file-upload/server/content/files/160917fac85509---73684717873.pdf
- http://lookkorea.net/userfiles/file/33780132192.pdf
- https://advance-pack.com/editor_upload/file/84083998835.pdf
- https://profbuhotchet.ru/wp-content/plugins/super-forms/uploads/php/files/3e17ff4108354ae319e58ca287a6bf15/tenosifopataga.pdf
- https://feedproxy.google.com/~r/skout/mBVl/~3/Om9ozkHLxGw/uplcv?utm_term=healthy+lunch+ideas+easy+and+quick
- 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_off0000b5c3.bin087e52fdc454a0ca7712d74ac856cfeb1b548830c765da4d009c0b8e116cc96e |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB5C3 | 10688 bytes |
font_01_sfnt_off0000cdf4.binef02c86ad1cb0873660443bc4d3fc829cfdafd790940f8f19fbc10a473c737a9 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xCDF4 | 15008 bytes |
font_02_sfnt_off0000f3c8.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF3C8 | 16792 bytes |
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