MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF contains numerous embedded URLs, many of which point to compromised CMS upload directories, indicating a likely phishing or malware distribution scheme. The ML classifier and ClamAV detection strongly support its malicious nature. The document body is heavily obfuscated and unreadable, providing no direct user-facing content, but the heuristics clearly identify the malicious intent via link farms.
Machine Learning
- Nyx PDF Classifier malicious score 0.9860
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 http://kolkandkolkdesign.com/site/data/ws/files/notegasogexofonabeme.pdf In PDF document text
- https://hps-gruppe.com/wp-content/plugins/super-forms/uploads/php/files/a2od08appeuvc3gc7o205r8gq5/51344967278.pdfIn PDF document text
- http://paymentsbusiness.ca/wp-content/plugins/formcraft/file-upload/server/content/files/16136b417760cc---13847824411.pdfIn PDF document text
- http://kliknetezde.cz/admin/obrazky/file/vagisowalumi.pdfIn PDF document text
- https://norservis.com/files/files/mamebu.pdfIn PDF document text
- http://atel-j.nl/uploads/files/14302922998.pdfIn PDF document text
- http://stefani.cz/fck/file/piforetewegazilafi.pdfIn PDF document text
- http://birizgardenhotel.com/userfiles/file/4585000343.pdfIn PDF document text
- http://rintoyo.com/userfiles/file/lugif.pdfIn PDF document text
- http://happyorderfood.com/uploads/files/82516763672.pdfIn PDF document text
- https://zakarpattya-tour.com/upload/wokopanenakeje.pdfIn PDF document text
- http://aow.infogestnet.it/ckfinder/userfiles/files/77981811890.pdfIn PDF document text
- http://thuocamakong.net/userfiles/image/file/566014604.pdfIn PDF document text
- http://gardatrans.com/content/Files/81838792042.pdfIn PDF document text
- https://camphacement.vn/upload/files/dedosifenunagigodipijexu.pdfIn PDF document text
- https://www.passion-rnd.com/upfile/files/2021/09/14/wojunawer.pdfIn PDF document text
- https://best-turbos.com/wp-content/plugins/super-forms/uploads/php/files/d4c8c61e009c088f0da874b845715286/kufugulifezuxafem.pdfIn PDF document text
- https://lazdynumokykla.lt/userfiles/file/budodowudugawadopug.pdfIn PDF document text
- http://xn--c1aejbdnke.xn--p1ai/admin/ckfinder/userfiles/files/wubefavijepolaganiz.pdfIn PDF document text
- https://fabriziochessa.it/userfiles/file/30695587103.pdfIn PDF document text
- https://dom4m.com/userfiles/files/gufefose.pdfIn PDF document text
- http://cattaneoarchitetti.it/userfiles/files/2521034293.pdfIn PDF document text
- http://etpatatietpatata.com/userfiles/files/80069333510.pdfIn PDF document text
- http://dkkarsin.pl/img/upload/files/feret.pdfIn PDF document text
- https://galaxy-training.com/userfiles/file/24822853206.pdfIn PDF document text
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/BkSY9tpko7c/uplcv?utm_term=best+free+games+on+iphone+2021PDF link annotation
- http://louisiana-arts.org.s150269.gridserver.com/siteuploads/editorimg/file/tixujod.pdfIn PDF document text
- 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_off0000e3a1.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE3A1 | 11104 bytes |
SHA-256: 3e78e4e492a915165b6e9a8fab0bfe447bf7c7b05d1e788c7a724d65cd945000 |
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font_01_sfnt_off0000fd76.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFD76 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off00011588.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11588 | 17392 bytes |
SHA-256: a43d27e6d138eca60072fa9c2ccc3fc3183744a43f3d31ceeea3b6efc8d806a3 |
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