MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
This PDF document was flagged as malicious by ClamAV and an ML classifier. The file embeds a large number of external links characteristic of an SEO link farm, many hosted on compromised CMS upload directories and presents a deceptive download button. Specific URLs and indicators for this sample are listed in the indicators section.
Machine Learning
- Nyx PDF Classifier malicious score 0.9982
Heuristics 7
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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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Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTONDocument contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
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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://andana.us/files/files/11783397955.pdf In PDF document text
- https://archcosmeticstudio.com.au/wp-content/plugins/super-forms/uploads/php/files/32ee69a25be26f3a2dd9cd916d7c1d1c/52950942573.pdfIn PDF document text
- https://massagetheory.ca/wp-content/plugins/super-forms/uploads/php/files/11190531a8274888553ff91270e639f2/busurudemexemadub.pdfIn PDF document text
- https://www.teppiche-waschen-hamburg.de/wp-content/plugins/formcraft/file-upload/server/content/files/160722cadc4718---99341016326.pdfIn PDF document text
- https://dacinsara.ro/fckfiles/file/13073853973.pdfIn PDF document text
- https://intelean.com/wp-content/plugins/formcraft/file-upload/server/content/files/160af63dc63e76---wugufixozatofaxugegu.pdfIn PDF document text
- http://ccsctda.com/ckfinder/userfiles/files/20210809_214950.pdfIn PDF document text
- http://hutergroup.de/userfiles/file/41834553848.pdfIn PDF document text
- http://donghotam.com/luutru/files/wuliserowipixurijumonikuv.pdfIn PDF document text
- http://helloslow.com/data/userfiles/files/garesa.pdfIn PDF document text
- http://zzzwchem.com/upload/files/45138748805.pdfIn PDF document text
- https://ms01bet.com/contents//files/lubilosonem.pdfIn PDF document text
- http://indago-rovigo.it/userfiles/files/wufutavo.pdfIn PDF document text
- http://www.tsahimmongol.com/uploads/images/files/palokupekuvivefarewegur.pdfIn PDF document text
- http://ngpsusa.com/wp-content/plugins/super-forms/uploads/php/files/4bmtv5g49u6es2ovfmoaarrmgr/32068819212.pdfIn PDF document text
- http://www.champcaregivers.com/wp-content/plugins/formcraft/file-upload/server/content/files/160822cf103a90---40587612345.pdfIn PDF document text
- https://paroles-vives.com/ckfinder/userfiles/files/woputisujupisalelenigeso.pdfIn PDF document text
- https://danielfelber.ch/userfiles/file/jaxuxasofedoze.pdfIn PDF document text
- http://kaufdeinauto.de/wp-content/plugins/formcraft/file-upload/server/content/files/161005af52e525---18119229738.pdfIn PDF document text
- https://www.sacproblemleri.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c68448236e7---wojux.pdfIn PDF document text
- https://sckstone.com/wp-content/plugins/super-forms/uploads/php/files/514493d0c9fa02b93a98afca6d9a9d1e/temevupeki.pdfIn PDF document text
- http://mudrberanova.cz/userfiles/file/gujazogufuredibo.pdfIn PDF document text
- https://ajitcoatings.com/uploads/90443844405.pdfIn PDF document text
- http://nhs1980alumni.com/clients/878257/File/57780270180.pdfIn PDF document text
- http://tongkhomica.com/upload/files/lobuligegukozol.pdfIn PDF document text
- https://feedproxy.google.com/~r/skout/mBVl/~3/LPIa9PGmDLg/uplcv?utm_term=download+firmware+sony+xperia+c+c2305PDF 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_off0000e1b5.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE1B5 | 11532 bytes |
SHA-256: d41ddd86a84975780717f119856930760e4b10f993c295395616e5ea77f56103 |
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font_01_sfnt_off0000fd26.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFD26 | 17632 bytes |
SHA-256: 68bf68262dd38f57d395936ea142e6c6c4e0df56a78ee434841c15a345591eb3 |
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font_02_sfnt_off00012a93.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12A93 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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