MALICIOUS
96
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF contains a link farm pointing to numerous compromised WordPress sites, indicating a likely attempt to redirect users to malicious content or phishing pages. The ML classifier strongly flagged this PDF as malicious, supporting the assessment of a malicious link distribution pattern. No scripts were extracted, limiting the analysis to the document's structure and embedded URLs.
Machine Learning
- Nyx PDF Classifier malicious score 0.9972
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://theydeserveastamp.org/wp-content/plugins/formcraft/file-upload/server/content/files/1608226cfe19ea---27553527742.pdf
- http://pttaccounting.com/userfiles/files/xanida.pdf
- https://vasantviharproperties.com/userfiles/file/pilokogoxebi.pdf
- https://businesslife.com/content/file/wowigisebuduvali.pdf
- https://arenda1s.ru/wp-content/plugins/super-forms/uploads/php/files/24c7c4fc8d0ed53a69c2fbd34a8c3498/negufova.pdf
- https://searchlink.org/userfiles//file/gojesurupekefiv.pdf
- http://www.primalegal.eu/wp-content/plugins/super-forms/uploads/php/files/f1kngfm68uav7qrlegemqmiir1/87271287332.pdf
- https://bizdrive.nl/wp-content/plugins/formcraft/file-upload/server/content/files/1/1608c986dbfa31---rosimonugepubod.pdf
- http://albatrossmrn.com/konadnew/userfiles/file/48769560853.pdf
- http://syuncyoku.jp/upload/file/62137273154.pdf
- http://www.kreasoft.mx/wp-content/plugins/formcraft/file-upload/server/content/files/1607151dc28ed6---lelufivufuzutakukaw.pdf
- http://www.anclupnapoli.it/userfiles/file/93493853082.pdf
- https://wpsqld.com.au/wp-content/plugins/super-forms/uploads/php/files/35127329fb7f661bad224c066263bbc9/jukoxa.pdf
- https://mrmusicfoundation.org/wp-content/plugins/super-forms/uploads/php/files/4eg90hji3ue9mq5loilun58eun/rejimeki.pdf
- http://stellamaris.cz/userfiles/36805972933.pdf
- http://www.etoiles-recrutement.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b8d5d4c6a54---xajidepodetitef.pdf
- http://bazatalty.pl/wp-content/plugins/super-forms/uploads/php/files/d1fdcae9729849f355d56b7719813c0c/tenevugapa.pdf
- http://paymentsbusiness.ca/wp-content/plugins/formcraft/file-upload/server/content/files/16081513a62d38---58209749702.pdf
- https://holocaustresearch.pl/nowy/photo/file/66418991304.pdf
- https://www.diktu.com/wp-content/plugins/formcraft/file-upload/server/content/files/160ba87b72bed4---75267790627.pdf
- https://www.sacproblemleri.com/wp-content/plugins/formcraft/file-upload/server/content/files/160885da81f316---fuxixekulonugina.pdf
- https://feedproxy.google.com/~r/Uplcv/~3/ngfLrbzwjls/uplcv?utm_term=god+gave+rock+n+roll+to+me
- 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_off0000d7f4.bina555d7bca3eea764d1d8f0daaed59a4908ac37eb80070c79d28ea2afc757305c |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD7F4 | 18408 bytes |
font_01_sfnt_off0001070f.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1070F | 16792 bytes |
font_02_sfnt_off00011f26.bina1e3a78b7052dacf40db32dd3a3e94ba2fd3a2996ec4df800c16c8e46e445d10 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11F26 | 10652 bytes |
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