MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
This PDF file was identified as malicious by ML classifiers and ClamAV, indicating it's a phishing or trojan delivery mechanism. It functions as a link farm, containing numerous URLs that point to compromised WordPress sites, likely serving as a distribution point for further malicious content. The presence of multiple distinct hosts and the use of formcraft plugin uploads suggest a coordinated effort to host and distribute malware.
Machine Learning
- Nyx PDF Classifier malicious score 0.9942
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://www.nbrownies.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/16079164c637ff---dowevukizuxoruf.pdf In PDF document text
- http://www.farparts.cl/wp-content/plugins/formcraft/file-upload/server/content/files/16095a78c3f9e9---80155826241.pdfIn PDF document text
- https://www.mixedclass.com.au/wp-content/plugins/super-forms/uploads/php/files/f9g1asbv439f39mprn0it0nqle/21639679902.pdfIn PDF document text
- http://shethof.ch/cgi-bin/dynamisch/file/53766437262.pdfIn PDF document text
- https://www.landalastadservice.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606f19239ec2f---sixizoxunorobezo.pdfIn PDF document text
- https://brod-plovdiv.com/images/netafizu.pdfIn PDF document text
- http://pavcargo.ru/wp-content/plugins/super-forms/uploads/php/files/5d0df98e2621fb995fb24d905c9fc57f/29813060261.pdfIn PDF document text
- https://sckstone.com/wp-content/plugins/super-forms/uploads/php/files/369f7e08502041a66d6f60940f802bba/zotaviwenosenuwu.pdfIn PDF document text
- http://trungtinjsc.vn/upload/FCK/file/73458382321.pdfIn PDF document text
- http://firewheels.pe/userfiles/file/zoruzavavavigupikenis.pdfIn PDF document text
- https://elitteaccesorios.com/wp-content/plugins/super-forms/uploads/php/files/e283j11n50aaijv14rvfka35rn/52595787285.pdfIn PDF document text
- http://on-video.com/movies/movie_data/file/28214466775.pdfIn PDF document text
- https://amesmedicalservices.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c4a2b24b0e4---35231303462.pdfIn PDF document text
- https://noukos.gr/wp-content/plugins/formcraft/file-upload/server/content/files/160a9a3a243c84---sorapu.pdfIn PDF document text
- http://botosani.ro/img/uploads/file/9085638497.pdfIn PDF document text
- http://vdadanang.vn/app/webroot/assets/files/xiratiresobijoxavada.pdfIn PDF document text
- https://www.sharpeningfactory.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608d0c8a2a090---bekonutir.pdfIn PDF document text
- http://magyaringatlanadatbazis.hu/dev/_user/file/sofinudibez.pdfIn PDF document text
- https://coachtourbusrental.com/wp-content/plugins/formcraft/file-upload/server/content/files/160abd74c8b902---malixafotebozireba.pdfIn PDF document text
- http://www.rolstoellift.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608ea45799228---ziranajofavumuromalev.pdfIn PDF document text
- http://taiwan-casters.com/userfiles/file/zesuf.pdfIn PDF document text
- https://www.euroservicemilano.it/wp-content/plugins/formcraft/file-upload/server/content/files/16076d90c1d248---15374176367.pdfIn PDF document text
- http://amtusa.com/wp-content/plugins/formcraft/file-upload/server/content/files/160805251bb61f---gakexeminaxevokobaxatadab.pdfIn PDF document text
- http://mountmedpharmacy.co.za/wp-content/plugins/formcraft/file-upload/server/content/files/16079db3ac3cdd---4470351432.pdfIn PDF document text
- http://wellfoto.cz/pictures/files/28175796198.pdfIn PDF document text
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/ngfLrbzwjls/uplcv?utm_term=exercises+to+avoid+with+herniated+thoracic+discPDF 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_off0000fdf0.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFDF0 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off00011602.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11602 | 16904 bytes |
SHA-256: f063d049c7e8857c9615891f905d2cde21841b285589d552a3050b06b5e47fb4 |
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font_02_sfnt_off000141a7.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x141A7 | 10656 bytes |
SHA-256: 58272caf4c4555156560f935ce22b88f02ba2d3a97fb14b3e1147d63967b603d |
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