MALICIOUS
96
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF file was flagged by an ML classifier as malicious and contains numerous links to compromised WordPress upload storage. These links likely serve as a link farm to obscure the ultimate destination, which could be a phishing site or a download for further malicious payloads. No scripts were extracted, but the presence of embedded URLs and the link farm structure strongly suggest a malicious intent.
Machine Learning
- Nyx PDF Classifier malicious score 0.9942
Heuristics 5
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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://php-lounge.de/userfiles/file/wodawigapudixazijisuzoba.pdf In PDF document text
- http://sarahscupcakery.com/wp-content/plugins/formcraft/file-upload/server/content/files/160785852b7c98---7683524206.pdfIn PDF document text
- http://jeyadhurgatemple.com/userfiles/file/2429564499.pdfIn PDF document text
- https://janeunchained.com/wp-content/plugins/super-forms/uploads/php/files/jsj4ucjhmu07hnosk6kgale7t2/rubawodixiwulaxo.pdfIn PDF document text
- http://mea-travel.pl/userfiles/file/sigupuruxilenokubekefubab.pdfIn PDF document text
- http://www.vivelamusica.es/wp-content/plugins/formcraft/file-upload/server/content/files/160b447fc06632---runanezuleb.pdfIn PDF document text
- http://bidwoodmachine.com/d/files/vaferelofizitagoladaj.pdfIn PDF document text
- https://coachtourbusrental.com/wp-content/plugins/formcraft/file-upload/server/content/files/160773ffee3fa4---23469743226.pdfIn PDF document text
- https://murderescape.com/wp-content/plugins/super-forms/uploads/php/files/f746cafb440eaa08da7cfb9f73a5de37/65853931380.pdfIn PDF document text
- http://jaatkinson.com/userimages/5767074816.pdfIn PDF document text
- http://staples1981.com/clients/b/ba/ba027a536d51c1d997ee76cae6dc9017/File/32599631627.pdfIn PDF document text
- http://pphu-joanna.pl/fckpliki/file/tumubiwixikuwa.pdfIn PDF document text
- https://kes-stv.ru/wp-content/plugins/super-forms/uploads/php/files/295f7bfd8933fae900d2f463c6ab97c9/72376142057.pdfIn PDF document text
- https://thepetrichortouch.com/wp-content/plugins/super-forms/uploads/php/files/ch3glugqmutlht8fd6npgbnrmc/likodibutadebero.pdfIn PDF document text
- http://recamonde.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/160ab9c3a91fb5---nibatodeg.pdfIn PDF document text
- http://lateonsettay-sachs.org/userfiles/file/gexujugetexavibuxudupi.pdfIn PDF document text
- https://makemycake.gr/wp-content/plugins/super-forms/uploads/php/files/cit9lkenj2v2kos5r0085t62iu/10819255887.pdfIn PDF document text
- http://dongphuctqueen.com/upload/files/dufusorabodilemu.pdfIn PDF document text
- http://www.movingintofreedom.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607624e78335b---2190345823.pdfIn PDF document text
- http://luckyassessoria.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/160adcf20c7204---xijiwowatorugulamop.pdfIn PDF document text
- https://www.cfo-search.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c7914c76f5c---dezinexuli.pdfIn PDF document text
- https://sckprime.com/wp-content/plugins/super-forms/uploads/php/files/a94861d89d05204b653c08dd33ac1ca8/puvunemeludasisaxu.pdfIn PDF document text
- https://worldkelo.com/wp-content/plugins/super-forms/uploads/php/files/004cee18014bea7e01e68c312128d28a/tuxufalogadakabisevipiji.pdfIn PDF document text
- https://feedproxy.google.com/~r/skout/mBVl/~3/PmAiG5ZyT-k/uplcv?utm_term=two+words+that+mean+the+same+thingPDF link annotation
- 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://dejavu.sourceforge.netIn PDF document text
- http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text
Extracted artifacts 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off00010d2d.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10D2D | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0001253f.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1253F | 18020 bytes |
SHA-256: d8f91c11a0e1d38719aadddfdf12ebd7e9fe80bccc901b0e0bb33b8a98ecb758 |
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font_02_sfnt_off000152c2.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x152C2 | 10700 bytes |
SHA-256: 9dd0fd89499c3d40e8f6499c2bb9aaf873286376a6274dd1871b23f880c17080 |
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