MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF contains a link farm pointing to multiple compromised WordPress sites, which in turn host other PDFs. This suggests a multi-stage attack, likely for phishing or malware distribution. The ClamAV detection and ML classifier strongly indicate malicious intent.
Machine Learning
- Nyx PDF Classifier malicious score 0.9992
Heuristics 6
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ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTIONClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
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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 https://promocionesnma.com/wp-content/plugins/super-forms/uploads/php/files/9de463dc6e3b937036e8625ead3326da/fibasa.pdf In PDF document text
- https://www.rath-catering.de/wp-content/plugins/formcraft/file-upload/server/content/files/16077f070cfee0---45162740533.pdfIn PDF document text
- https://www.hintonassociates.com/wp-content/plugins/super-forms/uploads/php/files/8a4427783765b67a6e18c19568f700e2/21139731787.pdfIn PDF document text
- http://backupcenters.com/userfiles/file/93711342809.pdfIn PDF document text
- https://www.cedicar.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608f7b76c17f3---31326617372.pdfIn PDF document text
- http://suachuathietbi.com/upload/files/77048554955.pdfIn PDF document text
- http://az4group.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/160bb48ccac43c---36867340991.pdfIn PDF document text
- http://bike-aholic.com/UserFiles/file/79469624281.pdfIn PDF document text
- http://www.dj-csnl.nl/wp-content/plugins/formcraft/file-upload/server/content/files/160bd0d1c758aa---72116050924.pdfIn PDF document text
- http://jagodkaprzedszkole.pl/userfiles/file/jirulitigafanalelugot.pdfIn PDF document text
- http://braintradingbcn.com/wp-content/plugins/super-forms/uploads/php/files/2a9e09bcf52874b90b4cddb932712400/72448185095.pdfIn PDF document text
- http://minhanh.com/files/75438062580.pdfIn PDF document text
- https://dakhoathienhoa.net/images/files/91108303750.pdfIn PDF document text
- http://lirealestatelitigator.com/wp-content/plugins/super-forms/uploads/php/files/1f025fac053d589e92b7cb83a4da0ee8/11548418905.pdfIn PDF document text
- http://www.photobreak.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/1609054201b04f---fipozid.pdfIn PDF document text
- https://fieldofgreen.com/wp-content/plugins/super-forms/uploads/php/files/37c81f9f0f122bf527de3a9620112a67/87610805525.pdfIn PDF document text
- http://china-miyaco.com/img/file/2021629235018.pdfIn PDF document text
- https://admonks.ru/wp-content/plugins/super-forms/uploads/php/files/ab0403776232051bfd5bffafee31bfa2/44958571104.pdfIn PDF document text
- https://www.fmworks.com.tr/wp-content/plugins/super-forms/uploads/php/files/se1mn5vtn0dv7enhi10lo9n8od/jagojikazixapinovexokuwad.pdfIn PDF document text
- http://aceonlinementors.com/userfiles/file/5213520102.pdfIn PDF document text
- https://feedproxy.google.com/~r/skout/mBVl/~3/A3Ryygt5BCM/uplcv?utm_term=static+characters+in+the+cruciblePDF 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_off0000e8b2.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE8B2 | 10520 bytes |
SHA-256: 6cee95f773b349a768f8e90c8ceea4a0cec7951c5142a37b05e6d81e22bff8f4 |
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font_01_sfnt_off0001008b.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1008B | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off0001189d.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1189D | 16736 bytes |
SHA-256: 825774a15d8544157ee06a691b65dd946d11aa076f913d7fad784f67e2616fb4 |
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