MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF file was flagged by ML classifiers and ClamAV as malicious, specifically as a phishing trojan. It contains numerous embedded URLs that point to compromised WordPress sites and other disposable hosting, suggesting a link farm designed to redirect users to malicious content. The presence of these URLs and the overall structure indicate an attempt to distribute malware or conduct phishing attacks.
Machine Learning
- Nyx PDF Classifier malicious score 0.9978
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://synerhu.ru/uplcv?utm_term=present+perfect+continuous+tense+worksheets+for+grade+5 PDF link annotation
- http://principessavencanice.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609fd9256e19e---fegijobetobudi.pdfIn PDF document text
- http://veterinariacasettamattei.it/userfiles/files/10471412368.pdfIn PDF document text
- http://amicalelaique-guyancourt.fr/ckfinder/userfiles/files/80447025626.pdfIn PDF document text
- https://netshopnepal.com/userfiles/file/nogosemujene.pdfIn PDF document text
- http://ibtaker.ps/userfiles/file/jisuk.pdfIn PDF document text
- https://t2sc.me/userfiles/zopibuxuwijifetakux.pdfIn PDF document text
- https://mehreganimaging.ir/images/upload/files/37298974769.pdfIn PDF document text
- http://kadh.kr/bobod/upload/file/81589947216.pdfIn PDF document text
- http://amfmeg.org/wp-content/plugins/formcraft/file-upload/server/content/files/16085b0b270745---98026425149.pdfIn PDF document text
- http://studiodebiaggi.eu/userfiles/files/majufabuxuvobusupowo.pdfIn PDF document text
- https://biomedchita.ru/imeg_master/file/14458055328.pdfIn PDF document text
- http://xn--80aaeiengkwpz6p.xn--p1ai/pub/file/majeduregikobetokeziwogo.pdfIn PDF document text
- https://alkhairi.co.uk/wp-content/plugins/super-forms/uploads/php/files/70bd8c11d0c532648279fb9eb050c4b3/43475345558.pdfIn PDF document text
- http://thaoduocvn.com/userfiles/image/file/vitidubulovozapunigej.pdfIn PDF document text
- https://moma-restaurant.com/wp-content/plugins/formcraft/file-upload/server/content/files/160e443a68fc1c---3032728048.pdfIn PDF document text
- http://darec.sk/files/files/30741537603.pdfIn PDF document text
- http://www.photobreak.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/160ba77fb65429---wujotevifobevu.pdfIn PDF document text
- http://sugarfree-gelato.com/upload/file/fasodiforufovekede.pdfIn PDF document text
- http://ansing.nl/userfiles/file/xonojapaguvebuwa.pdfIn PDF document text
- https://equinox-e.com/upload/files/dilolukofefik.pdfIn PDF document text
- http://sowa-architekci.pl/userfiles/files/jamazowamamazixiluva.pdfIn PDF document text
- http://architettoletiziamasciotta.eu/userfiles/files/54946807437.pdfIn PDF document text
- http://geostudio.eu/userfiles/files/fopaj.pdfIn PDF document text
- https://goodmix-psc.com/userfiles/files/gofizom.pdfIn PDF document text
- http://ouhkpthaa.org/userfiles/10984231125.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_off0000d81c.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD81C | 19184 bytes |
SHA-256: e1c92a8e0e3fcd0d991fbaca62319c4ff20c52a20b9a8bce8692e573b1bf1c9e |
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font_01_sfnt_off0001093a.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1093A | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off00012151.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12151 | 11264 bytes |
SHA-256: b46bde8921b285cb62172bfea8551b17c07fe27dc307bccb9ff34e7eb9a496f3 |
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