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 0.9973
Heuristics 7
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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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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 http://www.dnevi-sekretarjev.eu/wp-content/plugins/formcraft/file-upload/server/content/files/160c3432bc7b31---96625919515.pdf In PDF document text
- https://pointsourcegroup.com/wp-content/plugins/super-forms/uploads/php/files/bbaadf146e9fac53f9480e64b344f1d7/46611844343.pdfIn PDF document text
- http://dfh-consulting.com/userfiles/file/kexigigi.pdfIn PDF document text
- http://mxag.com/upload/browse/file/juniboxeralizuvarebe.pdfIn PDF document text
- https://jjmassociates.com/wp-content/plugins/super-forms/uploads/php/files/c088728e740f1257823f258607580343/57599924991.pdfIn PDF document text
- http://sisparts.pl/zdjecia/fck/file/juveluvokoxepevazugol.pdfIn PDF document text
- http://planet-for-events.de/userfiles/file/lixovu.pdfIn PDF document text
- https://expungemyrecordnj.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606f097262fb6---mupikeroduzeruxufag.pdfIn PDF document text
- https://www.landalastadservice.com/wp-content/plugins/formcraft/file-upload/server/content/files/16087ef0c2be57---56291702431.pdfIn PDF document text
- http://bilagroup.com/wp-content/plugins/formcraft/file-upload/server/content/files/16078155bbeab8---22223296566.pdfIn PDF document text
- http://minhledtran.com/luutru/files/lokitipulajafaximu.pdfIn PDF document text
- https://www.gs-gleichmann.de/wp-content/plugins/formcraft/file-upload/server/content/files/16072b7a6b34e0---12624444300.pdfIn PDF document text
- http://nickels.design/ckfinder/userfiles/files/31172121214.pdfIn PDF document text
- http://www.cascinasorigherio.it/wp-content/plugins/formcraft/file-upload/server/content/files/160a274a28cb43---23599373748.pdfIn PDF document text
- http://lucchetta.net/userfiles/files/jobibopuzoxasonewomejagep.pdfIn PDF document text
- https://travelsafeway.com/userfiles/file/23321963130.pdfIn PDF document text
- https://marblo.ph/app/webroot/img/files/madagabegik.pdfIn PDF document text
- http://pilanatofishing.com/home/sandbox/domains/shelter.sandbox.tritek.hk/public_html/ckfinder/userfiles/files/sawisekof.pdfIn PDF document text
- https://tootooair.com/FileData/ckfinder/files/20210809_2EAD35994D3E49FD.pdfIn PDF document text
- http://adhdadvisory.com/wp-content/plugins/formcraft/file-upload/server/content/files/160d5670069ba8---buzuraxigekima.pdfIn PDF document text
- http://evopizza.lt/ckfinder/userfiles/files/88845677863.pdfIn PDF document text
- https://rhythmcprandfirstaid.com/wp-content/plugins/super-forms/uploads/php/files/a4cfbde3d617e198562a6a9f18dcfe8a/wawovip.pdfIn PDF document text
- https://www.paparazzirestaurant.com.au/wp-content/plugins/super-forms/uploads/php/files/38b1b9e178143b0ab9eb07c78391b624/nopog.pdfIn PDF document text
- http://hanabi-la.com/uploads/files/17809754483.pdfIn PDF document text
- https://www.cocochan.com.pk/wp-content/plugins/super-forms/uploads/php/files/db9af220086a0b6289af33882c3f5049/vefanepabusezebubikabud.pdfIn PDF document text
- https://feedproxy.google.com/~r/skout/mBVl/~3/ngfLrbzwjls/uplcv?utm_term=assassin%27s+creed+identity+offline+apk+free+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_off0000fb95.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFB95 | 10920 bytes |
SHA-256: 56d6e303c340fbdc68718a550d0a7346b6898eb0e699003ca823bb8450c510eb |
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font_01_sfnt_off00011526.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11526 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off00012d38.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12D38 | 17596 bytes |
SHA-256: ed4c3a7de1bf9282608ad3211fb70ae631117845c465c3ff7aa6e94e5762af48 |
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