MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains embedded JavaScript and numerous external URIs, many of which are hosted on disposable domains or compromised CMS upload directories, indicating a link farm designed to redirect users to malicious content. The ML classifier and ClamAV detection strongly suggest malicious intent, likely for phishing or malware distribution.
Machine Learning
- Nyx PDF Classifier malicious score 0.9974
Heuristics 7
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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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Embedded JS stream low PDF_JSPDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
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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://archism.ru/uplcv?utm_term=cacher+des+videos+sur+android PDF link annotation
- http://khyljg.com/uploadfiles/files/45306179056.pdfIn PDF document text
- https://ooo-kenk.ru/userfiles/file/ludifil.pdfIn PDF document text
- http://namuvaldymas.lt/userfiles/file/domeku.pdfIn PDF document text
- http://kasaitogo.com/uploads/files/kupaxosoxoxew.pdfIn PDF document text
- http://myucpb.com/userfiles/file/wetonawobuxubutoxo.pdfIn PDF document text
- https://un7un9b3rl1pa7-99.com/contents/files/fawegek.pdfIn PDF document text
- https://newchat.xyz/js/ckfinder/userfiles/files/suruligaf.pdfIn PDF document text
- http://sambometal.com/dataroom/file/10804148445.pdfIn PDF document text
- https://gamletaarnhuset.no/wp-content/plugins/formcraft/file-upload/server/content/files/1612f5766e53a1---39377780844.pdfIn PDF document text
- http://www.gunyagder.org.tr/wp-content/plugins/super-forms/uploads/php/files/k90jptl583gkt6qkhso9ib7lj7/xonolegevamikuvubi.pdfIn PDF document text
- http://zeshengtecphar.com/UploadFiles/FCKeditor/20210913161314.pdfIn PDF document text
- https://augsburger-dartliga.de/uploads/file/92654487776.pdfIn PDF document text
- https://peterdegendt.be/file/retexanobepin.pdfIn PDF document text
- http://adamlegal.com/userfiles/file/22845806871.pdfIn PDF document text
- http://nhadephoanhao.vn/upload/ckupload/files/44536381639.pdfIn PDF document text
- https://btegypt.com/file/39771381732.pdfIn PDF document text
- http://zenithmetals.com/files/70373708125.pdfIn PDF document text
- http://baoveantam.org/upload/files/69363057817.pdfIn PDF document text
- http://www.egavilanes.com/ckfinder/userfiles/files/18006577688.pdfIn PDF document text
- http://www.alfainstal.pl/wp-content/plugins/formcraft/file-upload/server/content/files/161336b8482e34---68984948569.pdfIn PDF document text
- http://klawiatury-foliowe.pl/_data/file/90729968304.pdfIn PDF document text
- http://uptindia.com/newsimages/file///11211359397.pdfIn PDF document text
- https://gadd-asso.org/userfiles/file/xodaxuniwa.pdfIn PDF document text
- https://nieruchomosciprzetargi.pl/files/file/muwaxuzifugutibar.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_off0000de22.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDE22 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000f639.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF639 | 10520 bytes |
SHA-256: 49bcfd7f1a558526693f5e1abf9cd40d7cc4131c1f91663fc006b6b10522f3d6 |
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font_02_sfnt_off00010e24.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10E24 | 18992 bytes |
SHA-256: 54358ef50de48e63ea9a61f0927c80ac28110a7a9cfc2aa48a97148ee67e98ea |
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