MALICIOUS
154
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF file was identified as malicious by ML classifiers and ClamAV, specifically flagged as a phishing trojan. Heuristics indicate it functions as a link farm, with numerous embedded URLs pointing to compromised CMS upload directories and disposable hosting domains. The presence of 'utm_term' parameters suggests a potential phishing or SEO manipulation tactic to lure victims.
Machine Learning
- Nyx PDF Classifier malicious score 0.6435
Heuristics 5
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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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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://krisoc.ru/uplcv?utm_term=modelo+atomico+de+bohr+argon PDF link annotation
- http://yuseigachi.nl/wp-content/plugins/formcraft/file-upload/server/content/files/160a7084fa38c6---punejukogera.pdfIn PDF document text
- http://allycatering.com/userfiles/vafonen.pdfIn PDF document text
- http://pc-driver.ru/userfiles/files/jumuvu.pdfIn PDF document text
- http://easytravel63.ru/ckfinder/userfiles/files/sidegurepafaxisari.pdfIn PDF document text
- http://beateromer.com/bilder/file/nipetusekamuluzigu.pdfIn PDF document text
- http://busankid.com/webfiles/board/file///tamufigosiwilepamutaled.pdfIn PDF document text
- https://inchiriereelicoptere.ro/wp-content/plugins/formcraft/file-upload/server/content/files/160d57eac435cc---jijojudubogafudini.pdfIn PDF document text
- http://namlongprojects.com/images/uploads/files/gaxivos.pdfIn PDF document text
- http://www.flamanville-76.fr/upload/file/22544284581.pdfIn PDF document text
- http://iwish-cosmetics.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607644487a52f---90356736825.pdfIn PDF document text
- https://asthasupermarket.com/userfiles/file/92827247599.pdfIn PDF document text
- http://vudafrique.com/wp-content/plugins/super-forms/uploads/php/files/c79c015d78d0a2e3f0557e9f0da90e83/76773758075.pdfIn PDF document text
- https://nhaban24h.com.vn/wp-content/plugins/super-forms/uploads/php/files/9smks4jumtcuqbap277jt4fock/parewebazu.pdfIn PDF document text
- http://matstravel.ru/userfiles/file/98949436801.pdfIn PDF document text
- https://www.skyline-recruiting.com/wp-content/plugins/super-forms/uploads/php/files/6d09dc02e79c575d08a22795e51d1e97/kaxuluti.pdfIn PDF document text
- http://akpanlawoffice.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/63159224229.pdfIn PDF document text
- https://sckstone.com/wp-content/plugins/super-forms/uploads/php/files/dff8141f1ad45f019fc99d344775d0a1/funebebilezulimamijuzas.pdfIn PDF document text
- https://www.booster-p.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609f71ec053ad---ditomopebalewexuvaturon.pdfIn PDF document text
- https://aryaayur.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607ab4a46da6d---lufijabanumokezalokaxovo.pdfIn PDF document text
- https://domilot.com/uploader/files/98126308362.pdfIn PDF document text
- http://vinabomi.com/uploads/userfiles/file/51156058869.pdfIn PDF document text
- https://christembassyromford.org/wp-content/plugins/super-forms/uploads/php/files/d3f68b93ebdef13a7cc98d47b8ac935e/kirunizipuvupeporid.pdfIn PDF document text
- https://vanchuyenduongsat.vn/upload/files/3301642650.pdfIn PDF document text
- https://travelworld.ro/userfiles/file/netumikatokegegidirimoke.pdfIn PDF document text
- http://struttur-arch.it/userfiles/files/67465623827.pdfIn PDF document text
- http://dejavu.sourceforge.netIn PDF document text
- http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text
Extracted artifacts 2
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
stream_005_off0000f4c4.bin |
decompressed-pdf-stream | PDF FlateDecoded stream at offset 0xF4C4 | 23032 bytes |
SHA-256: 65820782d3f7b6699860ece9558cd7191f031e659e2ff6e2688a126b7972d138 |
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font_00_sfnt_off0000e2c1.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE2C1 | 5012 bytes |
SHA-256: 86a48940f105a8ed1b507370271f386939674159d79dfa8ab151fce078a0d6a9 |
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