MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains numerous embedded URLs, many of which point to compromised CMS uploads or disposable hosting, indicating a link farm designed to redirect users. The ML classifier and ClamAV detection strongly suggest malicious intent, specifically identified as a phishing trojan. While no scripts were directly extracted, the nature of the embedded URLs and the heuristic firings point towards a phishing or malware distribution scheme.
Machine Learning
- Nyx PDF Classifier malicious score 0.9867
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://clumba-indoor.ru/files/files/pinesif.pdf In PDF document text
- https://namratalakhotia.com/userfiles/files/xulifomadeliwalejutazama.pdfIn PDF document text
- http://arniestribu.com/campannas/file/18858711505.pdfIn PDF document text
- http://imhkayseri.com/resimler/files/44167138754.pdfIn PDF document text
- https://janeunchained.com/wp-content/plugins/super-forms/uploads/php/files/o8eape84bkvqc49c54vja47c1o/37000864829.pdfIn PDF document text
- https://www.taxikladis.gr/wp-content/plugins/formcraft/file-upload/server/content/files/1609e82a2c3551---10737138148.pdfIn PDF document text
- http://kashima.cc/userfiles/file/kalirutusewosafiniru.pdfIn PDF document text
- http://foxhill101.com/userimages/munewinuzedikiviwuxob.pdfIn PDF document text
- https://adbadog.com/wp-content/plugins/super-forms/uploads/php/files/637193e1d292998a921e7c44bb8a6eee/12582690632.pdfIn PDF document text
- http://fusen-es.info/yamituki-n/uploads/files/95464497473.pdfIn PDF document text
- https://www.bakkersvlaanderen.be/resources/plugins/ckfinder/userfiles/0/files/segixirarazibo.pdfIn PDF document text
- http://studioagm.it/userfiles/files/bemirorafuwoparuned.pdfIn PDF document text
- https://computerzone.pk/file/96235195475.pdfIn PDF document text
- http://www.dadosefatos.net.br/wp-content/plugins/formcraft/file-upload/server/content/files/160fa0dce1d871---kavenunoweviwataredi.pdfIn PDF document text
- https://eyestech.in/wp-content/plugins/super-forms/uploads/php/files/49mqkr5o7he6u5682o56q7aeak/48924917204.pdfIn PDF document text
- https://ikima.fr/uploads/file/22992328026.pdfIn PDF document text
- http://progfin.pl/userfiles/file/38705217189.pdfIn PDF document text
- https://immo-cjeanpaul.lu/userfiles/files/88558600276.pdfIn PDF document text
- http://auburn-companies.com/userfiles/files/41699344988.pdfIn PDF document text
- http://www.bewegeninarnhem.nl/wp-content/plugins/formcraft/file-upload/server/content/files/16084eccfba408---64483813461.pdfIn PDF document text
- http://american-security-inc.com/assets/ckfinder/userfiles/files/72221397974.pdfIn PDF document text
- http://www.highlandmetals.co.za/wp-content/plugins/formcraft/file-upload/server/content/files/1606f908a11191---zupidofipuxabaniz.pdfIn PDF document text
- http://hit-air.pro/ckfinder/userfiles/files/74443085888.pdfIn PDF document text
- https://churchosonline.com/wp-content/plugins/super-forms/uploads/php/files/0eeb3d5b0739fd16489785b732ed4342/lewafudogasalafegusom.pdfIn PDF document text
- http://etabetasurvey.com/userfiles/files/41474669963.pdfIn PDF document text
- http://studiovalentini.eu/userfiles/files/gewiwi.pdfIn PDF document text
- https://network-italia.it/file/49399850734.pdfIn PDF document text
- https://feedproxy.google.com/~r/Uplcv/~3/fzgW7-mxBc0/uplcv?utm_term=a+series+of+unfortunate+events+book+3+pdf+freePDF 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_off00012693.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12693 | 10996 bytes |
SHA-256: 156d7f474f79fc29b41e415d639912bc45747bf8ff73127724e7baf813844f00 |
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font_01_sfnt_off0001401f.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1401F | 19560 bytes |
SHA-256: 858e87ee796f2c9f1d1a806c6bdb956598125b917f444deb9708b955262668ac |
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font_02_sfnt_off000171fd.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x171FD | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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