MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The sample was detected by ClamAV as Pdf.Phishing.Trojan and an ML classifier flagged it with high confidence. Heuristics indicate the PDF contains a link farm pointing to potentially compromised WordPress upload storage and other disposable hosting. The embedded URLs suggest a phishing or credential harvesting attempt by directing users to external sites.
Machine Learning
- Nyx PDF Classifier malicious score 0.9973
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://vtvxm.vn/userfiles/file/vabosoxoloduforigubemozog.pdf In PDF document text
- https://bahamianbrewery.com/ckfinder/userfiles/files/27056733405.pdfIn PDF document text
- http://tsraccountants.nl/mailing/images/photo/file/kawijesimugabop.pdfIn PDF document text
- http://audiomaster.se/wp-content/plugins/formcraft/file-upload/server/content/files/1614900750e7a6---jikizet.pdfIn PDF document text
- http://onsijsselstein.nl/userfiles/files/xovovuboxiveken.pdfIn PDF document text
- http://el-master.ru/userfiles/file/wasanusogojupino.pdfIn PDF document text
- https://lentes123.com/aym_image/files/sorunifevidowirowew.pdfIn PDF document text
- http://aj-freight.com/ckfinder/userfiles/files/37693389958.pdfIn PDF document text
- http://arkystudio.eu/userfiles/files/10165443776.pdfIn PDF document text
- https://hotelmitrutarija.com/uploaded/files/47527458150.pdfIn PDF document text
- http://drvision.org/wp-content/plugins/formcraft/file-upload/server/content/files/1613babdc6e982---nokatuxoxowo.pdfIn PDF document text
- https://la-klamm.org/Files/files/32971023405.pdfIn PDF document text
- http://www.kickcommerce.com/userfiles/file/pubikovorusimepilaxubipe.pdfIn PDF document text
- http://ideviceplus.be/app/webroot/files/userfiles/files/34875850719.pdfIn PDF document text
- http://101-games.ru/images/uploads/files/wuxofegenademesolafo.pdfIn PDF document text
- https://provisionsinternational.com/wp-content/plugins/formcraft/file-upload/server/content/files/16139e5a75c593---17076086843.pdfIn PDF document text
- http://www.awakohchang.com/image/upload/File/0669927801.pdfIn PDF document text
- https://pellevah.com/upload/files/5286739326.pdfIn PDF document text
- http://www.ags-sib.ru/ckfinder/userfiles/files/18301715404.pdfIn PDF document text
- http://dasbluemchen.com/rolatukuwari.pdfIn PDF document text
- https://tutorbolivia.com/userfiles/file/borilalefoso.pdfIn PDF document text
- http://karmakonnect.org/DrumiBhatt/karmakonnect.org/Final/ckeditorimage/files/49405981721.pdfIn PDF document text
- https://srmhomes.com/images/bulk_images/files/49583218775.pdfIn PDF document text
- http://aleeblog.com/wp-content/plugins/super-forms/uploads/php/files/23la22aff3d0b16qeg84ahomi5/77214396571.pdfIn PDF document text
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/FevRqgeaUVY/uplcv?utm_term=english+movie+hot+targetPDF 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_off0000be22.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xBE22 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000d634.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD634 | 18332 bytes |
SHA-256: 15f3e9b02ce8130ce6dc0598701e540ef16f4869cf7b2a177e7b0fa8e5132192 |
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font_02_sfnt_off00010627.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10627 | 10604 bytes |
SHA-256: 8ef95d2167426bc8247000b3e6607fc588fec76b5c4af27e9d11aafce38a0c66 |
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