MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The file is identified as malicious by ML classifiers and ClamAV, indicating a high likelihood of malicious intent. The PDF contains numerous embedded URLs, many pointing to disposable hosting and employing SEO tactics, suggesting a phishing or malware distribution scheme. The presence of a link farm on compromised CMS upload storage further supports this, as it likely serves as a distribution point for malicious payloads.
Machine Learning
- Nyx PDF Classifier malicious score 0.9956
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://purevdavaa.mn/uploads/ckfinder/files/52853803216.pdf
- http://zaiger.ru/img/file/jipev.pdf
- https://www.blackandwhite-salon.com/wp-content/plugins/super-forms/uploads/php/files/tmp/16661749436.pdf
- https://leosservices.com/userfiles/file/kerelasim.pdf
- http://2girlstrippin.com/wp-content/plugins/formcraft/file-upload/server/content/files/16139bdc9e4a29---pavilozagurezanopi.pdf
- http://tuanlongland.com/upload/files/zesobofatamegafomibixufi.pdf
- http://floral-design-lindgens.de/userfiles/file/gomuxujapaguk.pdf
- https://granitabrasive.ro/editor_up/wewoj.pdf
- https://goldenparadisestsimons.com/wp-content/plugins/super-forms/uploads/php/files/8c9d968d3969254494e6d115f05a28df/vopusu.pdf
- https://microfocus-realize2020mea.com/wp-content/plugins/super-forms/uploads/php/files/26acd84f4422bda77b9c549f93cd9769/povepaxib.pdf
- http://dubilex.com/userfiles/files/39195449700.pdf
- https://5a.ro/ckfinder/userfiles/files/zafana.pdf
- https://adamslakeband.org/userfiles/file/suzutelipixuzalom.pdf
- http://zvaracskaskola.eu/editor_uploads/system/files/rukanemo.pdf
- http://v-lukomorie.com/uploader/files/gizopekeni.pdf
- https://www.hotelamoha.it/wp-content/plugins/formcraft/file-upload/server/content/files/16137d8ca53032---99323697010.pdf
- https://sipsib.ru/wp-content/plugins/super-forms/uploads/php/files/9d0bdf948a005c78e81278b637d416f8/jonulazasafelowo.pdf
- http://alacarte-grafik.de/userfiles/file/daginikavalepafiwepoz.pdf
- https://kenkochaya.com/user_data/ckfinder/files/20887833706.pdf
- http://www.logistiekverbeteren.nl/ckfinder/userfiles/files/xivabavelexegofozixore.pdf
- https://studio45.live/wp-content/plugins/super-forms/uploads/php/files/gnpjbvk5bad5jb7fvorhrhth5h/jirusefafosojikuxazo.pdf
- https://www.syah.org/wp-content/plugins/super-forms/uploads/php/files/d80a889b07c79bdf97172d80574496f4/jijamugagufav.pdf
- https://fsreloading.com/userfiles/files/48031274977.pdf
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/3CAf4wW3hvY/uplcv?utm_term=download+apk+app+for+pc
- http://www.w3.org/1999/02/22-rdf-syntax-ns#
- http://purl.org/dc/elements/1.1/
- http://ns.adobe.com/pdf/1.3/
- http://ns.adobe.com/xap/1.0/
- http://ns.adobe.com/xap/1.0/mm/
- http://ns.adobe.com/xap/1.0/rights/
- http://dejavu.sourceforge.net
- http://dejavu.sourceforge.net/wiki/index.php/License
Extracted artifacts 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000b057.bin2c64bc3c697ee9b625dfa6b882a7ad5e97e3f528a77f07380ef071bedb006288 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB057 | 10304 bytes |
font_01_sfnt_off0000c7af.bin4bd3457b33a2a420ef4386d0630aa8342370614a4a519718b72b0a0e6ca5f0e2 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC7AF | 17860 bytes |
font_02_sfnt_off0000f4d0.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF4D0 | 16792 bytes |
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