MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF contains numerous links pointing to compromised websites and disposable hosting, indicating a link farm designed to redirect users. ClamAV and ML classifiers confirm its malicious nature, specifically flagging it as a phishing trojan. The presence of external URI heuristics and link farm indicators strongly suggests an attempt to lead users to malicious content.
Machine Learning
- Nyx PDF Classifier malicious score 0.9974
Heuristics 6
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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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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://kcss.hu/korosi/userfiles/file/51530479534.pdf In PDF document text
- https://idealist.ro/userfiles/file/negoxop.pdfIn PDF document text
- https://infotechloyalty.com/bot/ckfinder/uf/files/bepefasomakufasumujawo.pdfIn PDF document text
- http://clair-environnement.eu/catalogue_dynamique/file/99977607401.pdfIn PDF document text
- http://agisma.ru/files/pages/files/jetujenonuxusiwoxulolum.pdfIn PDF document text
- http://hongpakthai.com/ckfinder/userfiles/files/zobofanamafozip.pdfIn PDF document text
- https://aquaticlandscape.com/wp-content/plugins/formcraft/file-upload/server/content/files/16083efbf8e219---51575312009.pdfIn PDF document text
- http://gachtrangtritranvinhtin.com/gachtrangtritranvinhtin/Images_upload/files/lumupeb.pdfIn PDF document text
- http://renknh.com/ckupload/files/sumezegesamox.pdfIn PDF document text
- http://zae.me/datafiles/file/37326537322.pdfIn PDF document text
- http://conwaychristian.org/wp-content/plugins/formcraft/file-upload/server/content/files/160ac93c432d99---koxumasewo.pdfIn PDF document text
- https://narellesastro.com/userfiles/files/kiwogozaw.pdfIn PDF document text
- http://worldnaturalfood.com/image/upload/File/tuzonefutotus.pdfIn PDF document text
- http://htwy.com/upload/file/86427026457.pdfIn PDF document text
- http://www.iqubz.com/wp-content/plugins/formcraft/file-upload/server/content/files/16073e20e7ae96---3924721086.pdfIn PDF document text
- http://www.allatpatikapecs.hu/images/file/pewula.pdfIn PDF document text
- http://wooshin.kr/uploaded/file/159626022860a5f7995fd8e.pdfIn PDF document text
- http://www.neslihanonur.com/wp-content/plugins/super-forms/uploads/php/files/1c7b300a3900ae857604115fd2a6f20b/resomugiteludetoton.pdfIn PDF document text
- http://bmcnx.com/userfiles/file/lakukujuvirilisoxuwosap.pdfIn PDF document text
- http://www.thebetterinsurance.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b9214e23211---5477086274.pdfIn PDF document text
- http://balcimimarlik.com/resimler/files/56553539081.pdfIn PDF document text
- http://foto-video.ch/userfiles/files/7042202493.pdfIn PDF document text
- http://lorichphoto.com/pictures/file/43781924485.pdfIn PDF document text
- http://www.caslyn.co.za/wp-content/plugins/formcraft/file-upload/server/content/files/1607b45c860969---88998647578.pdfIn PDF document text
- http://netcentricnj.com/ckfinder/userfiles/files/62355245658.pdfIn PDF document text
- https://feedproxy.google.com/~r/skout/mBVl/~3/BkSY9tpko7c/uplcv?utm_term=perfectos+mentirosos+pdfPDF 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_off0000e0bc.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE0BC | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000f8d3.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF8D3 | 10572 bytes |
SHA-256: 03f7673ce4b4eb86e081d2129fd64387d43fd287f962cfe7cf1f4ca8fc74f685 |
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font_02_sfnt_off000110ed.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x110ED | 19560 bytes |
SHA-256: e0e6594351cadaa667f8ae6c4019581fb4076b09bffa99bc77abfa6384b2376d |
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