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 0.9974
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://ctsgroups.asia/images/file/jufotowiku.pdf In PDF document text
- https://prosegik.com/wp-content/plugins/super-forms/uploads/php/files/3b9f584f1e044199b92e71597b6431fd/waxowepefe.pdfIn PDF document text
- http://graviroz.hu/ckfinder/userfiles/files/56245686212.pdfIn PDF document text
- https://118highschool.am/wp-content/plugins/super-forms/uploads/php/files/5652538962f11e558931ee1204fa13f7/wagezafa.pdfIn PDF document text
- http://huile-de-nigelle.info/userfiles/file/wofiros.pdfIn PDF document text
- https://www.xcelsus.de/wp-content/plugins/formcraft/file-upload/server/content/files/1607d58a9afe70---14935139128.pdfIn PDF document text
- http://www.socalgreatwhite.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607b18b6dc807---donoxekagari.pdfIn PDF document text
- http://www.opencalgary.org/wp-content/plugins/formcraft/file-upload/server/content/files/160b918a9cea9f---degefowoligadeferulemu.pdfIn PDF document text
- https://massagetheory.ca/wp-content/plugins/super-forms/uploads/php/files/875fe5b827a9bd711bffbaac955d3d32/9962340845.pdfIn PDF document text
- http://koyomisushi.com/uploads/files/tetinijuxusamijebisi.pdfIn PDF document text
- http://www.fullertherapy.com/wp-content/plugins/formcraft/file-upload/server/content/files/16076ab0f931dc---49472373836.pdfIn PDF document text
- https://www.simplythebestevents.ca/wp-content/plugins/formcraft/file-upload/server/content/files/160a4bbef32ef9---7096083438.pdfIn PDF document text
- http://kamerton.nl/clientfiles/rawemera.pdfIn PDF document text
- https://autoandtruckrepair.net/nbloom/fckuploads/file/20028241888.pdfIn PDF document text
- https://jjcfurnituremaker.com/userfiles/files/gefibadavig.pdfIn PDF document text
- http://lisahyatthealth.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a814271be92---xilugakixafakiteduzo.pdfIn PDF document text
- https://peterdegendt.be/file/4405270452.pdfIn PDF document text
- https://www.paparazzirestaurant.com.au/wp-content/plugins/super-forms/uploads/php/files/7d9cdaa2251241a76ed129bf79cf4c78/87770440091.pdfIn PDF document text
- https://hanomanberjaya.com/contents//files/dapaxisinufij.pdfIn PDF document text
- https://www.hotel-palladium.gr/wp-content/plugins/super-forms/uploads/php/files/4v6ort2hdj83u41ssjqkoai4dp/93276097393.pdfIn PDF document text
- https://cottonweb.net/userfiles/file/zezibuluwaxejuzewatan.pdfIn PDF document text
- https://mokhalasati.com/userfiles/files/jofuzovuwabuvutebolet.pdfIn PDF document text
- http://halvani.com/wp-content/plugins/formcraft/file-upload/server/content/files/160bc31a585c90---41365566207.pdfIn PDF document text
- https://cleanenergy.mn/uploads/files/rujowenedifopomo.pdfIn PDF document text
- https://gservicepz.com/wp-content/plugins/super-forms/uploads/php/files/2bb03c2bf3b0949984d6ca3b48fab02c/padisabegid.pdfIn PDF document text
- https://feedproxy.google.com/~r/Uplcv/~3/zMnd8XtcwSM/uplcv?utm_term=bates+pocket+guide+to+physical+examination+8th+edition+pdf+downloadPDF 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_off0000e1cc.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE1CC | 11724 bytes |
SHA-256: ecd7c1fe411119a1c2ea494d5bff65f84b4afa6ccff883c2939ab4fc23b0313e |
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font_01_sfnt_off0000fd83.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFD83 | 17816 bytes |
SHA-256: 1d1c7f24ef9c433d63c5b34bd2258bac380f386cb37c1026c20643a7200428bc |
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font_02_sfnt_off00012bf6.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12BF6 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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